subject:(Polypropylene)

1. Mouffok, Samir. Etude de la photo-oxydation dans les conditions accélérées et naturelles des mélanges ternaires : Polypropylène /Polyamide-6/PP-g-MA.

Degree: 2015, Université M'Hamed Bougara Boumerdès

URL: http://dlibrary.univ-boumerdes.dz:8080123456789/2097

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107 p. : ill. ; 30 cm

Ce travail porte sur l'étude de la photo-oxydation dans les conditions accélérées et Naturelles des Mélanges Ternaires Polypropylène… (more)

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107 p. : ill. ; 30 cm

Ce travail porte sur l'étude de la photo-oxydation dans les conditions accélérées et Naturelles des Mélanges Ternaires Polypropylène (PP)/Polyamide-6 (PA-6)/PP-g-MA. La première partie est consacrée à la mise en oeuvre des mélanges PP/PA-6 (70/30 et 30/70 % massique) à différents taux de compatibilisant PP-g-MA " en fondue ". Au travers des différentes techniques utilisées, les résultats révèlent que les mélanges binaires présentent une morphologie dispersée et de faibles propriétés mécaniques. L'incorporation du PP-g-MA améliore la compatibilité des échantillons élaborés et par conséquent, leurs propriétés rhéologiques et mécaniques. Le second volet de la thèse traite de l'étude du photo-vieillissement accéléré simulé au laboratoire sur les mélanges PP/PA-6 (70/30 % massique) à 0 et 2 % massique du PP-g-MA. L'ensemble des résultats de cette étude suggère que la photo-oxydation dans les mélanges PP/PA-6 commence dans la phase PA-6 initiant ainsi l'oxydation des chaines du PP. La photo-oxydation des deux phases se produit simultanément suite aux interactions entre les photo-produits des deux composantes, ce qui conduit à l'accélération de la cinétique de la dégradation des mélanges. Même si la présence du compatibilisant PP-g-MA ne modifie pas le mécanisme de photo-oxydation des mélanges PP/PA-6, il a été montré qu'il accélère leur cinétique de dégradation. Dans la troisième partie consacrée à l'étude de l'effet du vieillissement naturel sur la structure et les propriétés physiques des mélanges de polymères PP/PA-6 /PP-g-MA, les résultats révèlent que le compatibilisant ne modifie pas le mécanisme de dégradation de ces mélanges en concordance avec les résultats du vieillissement accéléré. L'exposition à la lumière UV naturelle pour une durée d'une année diminue la viscosité et les propriétés mécaniques des mélanges PP/PA-6 indépendamment du taux du PP-g-MA. De même que le vieillissement accéléré, le vieillissement naturel augmente le degré de cristallinité et réduit la température de fusion du PP et du PA-6 que ce soit en tant que polymères vierges ou en tant que composantes dans les mélanges.

Subjects/Keywords: Polyamide; Polypropylene

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APA (6^th Edition):

Mouffok, S. (2015). Etude de la photo-oxydation dans les conditions accélérées et naturelles des mélanges ternaires : Polypropylène /Polyamide-6/PP-g-MA. (Thesis). Université M'Hamed Bougara Boumerdès. Retrieved from http://dlibrary.univ-boumerdes.dz:8080123456789/2097

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mouffok, Samir. “Etude de la photo-oxydation dans les conditions accélérées et naturelles des mélanges ternaires : Polypropylène /Polyamide-6/PP-g-MA.” 2015. Thesis, Université M'Hamed Bougara Boumerdès. Accessed October 19, 2019. http://dlibrary.univ-boumerdes.dz:8080123456789/2097.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mouffok, Samir. “Etude de la photo-oxydation dans les conditions accélérées et naturelles des mélanges ternaires : Polypropylène /Polyamide-6/PP-g-MA.” 2015. Web. 19 Oct 2019.

Vancouver:

Mouffok S. Etude de la photo-oxydation dans les conditions accélérées et naturelles des mélanges ternaires : Polypropylène /Polyamide-6/PP-g-MA. [Internet] [Thesis]. Université M'Hamed Bougara Boumerdès; 2015. [cited 2019 Oct 19]. Available from: http://dlibrary.univ-boumerdes.dz:8080123456789/2097.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mouffok S. Etude de la photo-oxydation dans les conditions accélérées et naturelles des mélanges ternaires : Polypropylène /Polyamide-6/PP-g-MA. [Thesis]. Université M'Hamed Bougara Boumerdès; 2015. Available from: http://dlibrary.univ-boumerdes.dz:8080123456789/2097

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

2. Rife, Nathan Prentice. Tacticity control of polypropylene using a C2-symmetric family of catalysts.

Degree: 2009, Texas A&M University

URL: http://hdl.handle.net/1969.1/ETD-TAMU-2029

► A family of C2-symmetric catalysts was designed and synthesized with the intent to polymerize propylene. The catalyst was designed to be C2-symmetric for the specific… (more)

Subjects/Keywords: Polypropylene; Tacticity

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APA (6^th Edition):

Rife, N. P. (2009). Tacticity control of polypropylene using a C2-symmetric family of catalysts. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-2029

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Rife, Nathan Prentice. “Tacticity control of polypropylene using a C2-symmetric family of catalysts.” 2009. Thesis, Texas A&M University. Accessed October 19, 2019. http://hdl.handle.net/1969.1/ETD-TAMU-2029.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Rife, Nathan Prentice. “Tacticity control of polypropylene using a C2-symmetric family of catalysts.” 2009. Web. 19 Oct 2019.

Vancouver:

Rife NP. Tacticity control of polypropylene using a C2-symmetric family of catalysts. [Internet] [Thesis]. Texas A&M University; 2009. [cited 2019 Oct 19]. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2029.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Rife NP. Tacticity control of polypropylene using a C2-symmetric family of catalysts. [Thesis]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-2029

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University

3. Merrell, Mabel. Comparative performance of polypropylene and nylon hosiery using wear and laboratory tests.

Degree: MS, Clothing, Textiles and Related Arts, 1964, Oregon State University

URL: http://hdl.handle.net/1957/48273

► The purpose of this study was to compare the performance of hosiery made from a new fiber, polypropylene, with the performance of hosiery made from… (more)

▼ The purpose of this study was to compare the performance of hosiery made from a new fiber, polypropylene, with the performance of hosiery made from a better known fiber, nylon, and to get some indication of consumer reaction to a new textile product. Information was obtained through two wear tests and selected laboratory tests using different brands of hosiery with both fiber types represented. Two questionnaires were used as part of the wear tests. The first obtained information about the subjects and about some of their opinions concerning hosiery wear in general. The second questionnaire obtained information about the subjects' opinions concerning the hosiery worn in the wear tests. Thirty subjects participated in the first wear test with each wearing one pair of hosiery made of each fiber. Ten subjects participated in the second wear test, six of whom had also been part of the first test. The performance of the hosiery was checked by considering the number, severity and position of faults which occurred in relation to the number of days worn and by measuring to find the amount of stretch found in the worn hosiery. Laboratory tests were conducted to verify certain information obtained about the hosiery during the wear tests as well as to obtain further information about the hosiery. The questionnaires were analyzed by using percentages of the number responding to each part of each question. In this way, a general picture of the majority could be made to find out something about the subjects as a group and about their opinions of the hosiery. The wear life of the hosiery as shown by the number of days worn was related to the number of total faults found in the test hosiery. In addition, each type of fault, snags, runs, and abrasion marks, was considered. The two fiber types of hosiery were compared by testing to find if the differences between means were significant using F ratios. An additional check was made for covariance between the number of runs and the total days worn, and between the number of abrasion marks and the total days worn. All hosiery increased in width and decreased in length during the wear periods. The average amounts of dimensional change were analyzed by comparing the mean differences of the two fiber types of hosiery. The results were verified in the laboratory using a stretch and recovery test under controlled conditions. The differences in the means found in the laboratory test were checked for significance using F ratios. The rates of recovery were plotted on a time graph. An evaluation of the degree of fading was made by a panel of judges using a ranking system. The amount of, and the deviation from linear regression was found. Hosiery of both fiber types were washed in the laboratory and used as control groups to check with hosiery worn and washed by the subjects. Four laboratory tests were conducted to help describe the hosiery used in the study and to supply further information as to the differences in performance of hosiery made of… Advisors/Committee Members: Grant, Phyllis E. (advisor).

Subjects/Keywords: Polypropylene

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Merrell, M. (1964). Comparative performance of polypropylene and nylon hosiery using wear and laboratory tests. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/48273

Chicago Manual of Style (16^th Edition):

Merrell, Mabel. “Comparative performance of polypropylene and nylon hosiery using wear and laboratory tests.” 1964. Masters Thesis, Oregon State University. Accessed October 19, 2019. http://hdl.handle.net/1957/48273.

MLA Handbook (7^th Edition):

Merrell, Mabel. “Comparative performance of polypropylene and nylon hosiery using wear and laboratory tests.” 1964. Web. 19 Oct 2019.

Vancouver:

Merrell M. Comparative performance of polypropylene and nylon hosiery using wear and laboratory tests. [Internet] [Masters thesis]. Oregon State University; 1964. [cited 2019 Oct 19]. Available from: http://hdl.handle.net/1957/48273.

Council of Science Editors:

Merrell M. Comparative performance of polypropylene and nylon hosiery using wear and laboratory tests. [Masters Thesis]. Oregon State University; 1964. Available from: http://hdl.handle.net/1957/48273

Oregon State University

4. Jeffers, Joyce Colleen. An evaluation of serviceability and consumer acceptance of pre-school boys' knit shirts made of blended polypropylene fabrics.

Degree: MS, Clothing, Textiles and Related Arts, 1969, Oregon State University

URL: http://hdl.handle.net/1957/46264

► This study was an evaluation of fabric serviceability and consumer acceptance of polypropylene blend knits. A review of literature indicates a trend toward polypropylene blend… (more)

Subjects/Keywords: Polypropylene

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jeffers, J. C. (1969). An evaluation of serviceability and consumer acceptance of pre-school boys' knit shirts made of blended polypropylene fabrics. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/46264

Chicago Manual of Style (16^th Edition):

Jeffers, Joyce Colleen. “An evaluation of serviceability and consumer acceptance of pre-school boys' knit shirts made of blended polypropylene fabrics.” 1969. Masters Thesis, Oregon State University. Accessed October 19, 2019. http://hdl.handle.net/1957/46264.

MLA Handbook (7^th Edition):

Jeffers, Joyce Colleen. “An evaluation of serviceability and consumer acceptance of pre-school boys' knit shirts made of blended polypropylene fabrics.” 1969. Web. 19 Oct 2019.

Vancouver:

Jeffers JC. An evaluation of serviceability and consumer acceptance of pre-school boys' knit shirts made of blended polypropylene fabrics. [Internet] [Masters thesis]. Oregon State University; 1969. [cited 2019 Oct 19]. Available from: http://hdl.handle.net/1957/46264.

Council of Science Editors:

Jeffers JC. An evaluation of serviceability and consumer acceptance of pre-school boys' knit shirts made of blended polypropylene fabrics. [Masters Thesis]. Oregon State University; 1969. Available from: http://hdl.handle.net/1957/46264

University of British Columbia

5. Manji, Aminmohamed. Electro synthesis of propylene oxide in a bipolar trickle bed reactor .

Degree: 1985, University of British Columbia

URL: http://hdl.handle.net/2429/25117

► The synthesis of propylene oxide by electrolysis of dilute sodium bromide solution with propylene gas was investigated in an electrochemical bipolar reactor consisting of six… (more)

Subjects/Keywords: Polypropylene

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APA (6^th Edition):

Manji, A. (1985). Electro synthesis of propylene oxide in a bipolar trickle bed reactor . (Thesis). University of British Columbia. Retrieved from http://hdl.handle.net/2429/25117

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Manji, Aminmohamed. “Electro synthesis of propylene oxide in a bipolar trickle bed reactor .” 1985. Thesis, University of British Columbia. Accessed October 19, 2019. http://hdl.handle.net/2429/25117.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Manji, Aminmohamed. “Electro synthesis of propylene oxide in a bipolar trickle bed reactor .” 1985. Web. 19 Oct 2019.

Vancouver:

Manji A. Electro synthesis of propylene oxide in a bipolar trickle bed reactor . [Internet] [Thesis]. University of British Columbia; 1985. [cited 2019 Oct 19]. Available from: http://hdl.handle.net/2429/25117.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Manji A. Electro synthesis of propylene oxide in a bipolar trickle bed reactor . [Thesis]. University of British Columbia; 1985. Available from: http://hdl.handle.net/2429/25117

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

6. Juska, Thomas David. The mechanical behavior and deformation morphology of rubber-modified polypropylene.

Degree: Polymer Science & Engineering, 1982, University of Massachusetts

URL: https://scholarworks.umass.edu/theses/1650

Subjects/Keywords: Polymer; Polypropylene; Polypropylene

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APA (6^th Edition):

Juska, T. D. (1982). The mechanical behavior and deformation morphology of rubber-modified polypropylene. (Thesis). University of Massachusetts. Retrieved from https://scholarworks.umass.edu/theses/1650

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Juska, Thomas David. “The mechanical behavior and deformation morphology of rubber-modified polypropylene.” 1982. Thesis, University of Massachusetts. Accessed October 19, 2019. https://scholarworks.umass.edu/theses/1650.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Juska, Thomas David. “The mechanical behavior and deformation morphology of rubber-modified polypropylene.” 1982. Web. 19 Oct 2019.

Vancouver:

Juska TD. The mechanical behavior and deformation morphology of rubber-modified polypropylene. [Internet] [Thesis]. University of Massachusetts; 1982. [cited 2019 Oct 19]. Available from: https://scholarworks.umass.edu/theses/1650.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Juska TD. The mechanical behavior and deformation morphology of rubber-modified polypropylene. [Thesis]. University of Massachusetts; 1982. Available from: https://scholarworks.umass.edu/theses/1650

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

7. Vinay Kumar. Development and characterization of rice husk polypropylene composites; -.

Degree: Engineering, 2006, Punjab Technical University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/8965

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Due to non biodegradable nature of plastics, there is accumulation of these materials in the environment. Various means of its disposal such as recycling, incineration,… (more)

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Due to non biodegradable nature of plastics, there is accumulation of these materials in the environment. Various means of its disposal such as recycling, incineration, pyrolysis, biodegradation are available but these processes require lot of energy and time. Therefore utilization of waste plastics for making road and generation of fuels are the better options. Lignocellulosic materials such as rice husk, abundantly available in nature can be used with polypropylene (commodity plastics) for making thermoplastic composites. Use of rice husk in polypropylene reduce the cost and makes the composite material biodegradable. Poor compatibility between rice husk (hydrophilic) and polypropylene (hydrophobic) results lower mechanical strength in rice husk polypropylene composites. Therefore to make the effective utilization of these materials, addition of compatibilizer or coupling agent is must. In the present study, various properties such as mechanical, chemical, thermal of rice husk polypropylene (RHPP) composites have been studied. Earlier most of the work was focused on the use of compatibilizer and coupling agents for enhancing the mechanical properties, tensile strength in particular. Most commonly used compatibilizer was maleic anhydride polypropylene (MAPP), and coupling agents used were silnae, titanate and zirconate. Here emphasis have been given on detail studies of mechanical properties such as tensile strength, impact strength, modulus, hardness, and abrasion resistance of rice husk polypropylene (RHPP) composites for exploring the new applications. Use of fillers/additives affects the properties of plastics significantly. Therefore additives such as talc, silica, mica, calcium carbonate, wollastonite, and zirconium oxide have been selected and their effect on various properties such as mechanical, chemical and thermal of RHPP composites have been studied. In chapter one, effect of titanate coupling agent on the mechanical properties of RHPP composites was studied.

References p.116-131

Advisors/Committee Members: Singh, Manohar, Kanungo, B K, Sinha, Shishir.

Subjects/Keywords: Chemical Engineering; polypropylene

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APA (6^th Edition):

Kumar, V. (2006). Development and characterization of rice husk polypropylene composites; -. (Thesis). Punjab Technical University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/8965

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Kumar, Vinay. “Development and characterization of rice husk polypropylene composites; -.” 2006. Thesis, Punjab Technical University. Accessed October 19, 2019. http://shodhganga.inflibnet.ac.in/handle/10603/8965.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Kumar, Vinay. “Development and characterization of rice husk polypropylene composites; -.” 2006. Web. 19 Oct 2019.

Vancouver:

Kumar V. Development and characterization of rice husk polypropylene composites; -. [Internet] [Thesis]. Punjab Technical University; 2006. [cited 2019 Oct 19]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/8965.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Kumar V. Development and characterization of rice husk polypropylene composites; -. [Thesis]. Punjab Technical University; 2006. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/8965

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Zambia

8. Mbiyana, Keegan M. Simulation of fatigue failure in Sisal and Kenaf reinforced polypropylene .

Degree: 2015, University of Zambia

URL: http://hdl.handle.net/123456789/4025

► Currently Fibre-Glass (FG) is the most widely used reinforcement in polymer composites. However, GF or fibre (|rassijs very expensive and non-biodegradable hence the need for… (more)

Subjects/Keywords: Polypropylene; Reinforced Plastics

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APA (6^th Edition):

Mbiyana, K. M. (2015). Simulation of fatigue failure in Sisal and Kenaf reinforced polypropylene . (Thesis). University of Zambia. Retrieved from http://hdl.handle.net/123456789/4025

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mbiyana, Keegan M. “Simulation of fatigue failure in Sisal and Kenaf reinforced polypropylene .” 2015. Thesis, University of Zambia. Accessed October 19, 2019. http://hdl.handle.net/123456789/4025.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mbiyana, Keegan M. “Simulation of fatigue failure in Sisal and Kenaf reinforced polypropylene .” 2015. Web. 19 Oct 2019.

Vancouver:

Mbiyana KM. Simulation of fatigue failure in Sisal and Kenaf reinforced polypropylene . [Internet] [Thesis]. University of Zambia; 2015. [cited 2019 Oct 19]. Available from: http://hdl.handle.net/123456789/4025.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mbiyana KM. Simulation of fatigue failure in Sisal and Kenaf reinforced polypropylene . [Thesis]. University of Zambia; 2015. Available from: http://hdl.handle.net/123456789/4025

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Stellenbosch University

9. De Goede, Elana. The development of analytical techniques for studying degradation in impact polypropylene copolymers.

Degree: Chemistry and Polymer Science, 2009, Stellenbosch University

URL: http://hdl.handle.net/10019.1/1162

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Thesis (DSc (Chemistry and Polymer Science)) – University of Stellenbosch, 2009.

Unstabilised polyolefins are susceptible to degradation when exposed to molecular oxygen, heat, irradiation as well… (more)

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Thesis (DSc (Chemistry and Polymer Science)) – University of Stellenbosch, 2009.

Unstabilised polyolefins are susceptible to degradation when exposed to molecular oxygen, heat, irradiation as well as chemical and mechanical stimuli. Oxidation leads to changes in molecular properties such as molecular weight, molecular weight distribution, chemical composition, chemical composition distribution and crystallisability. Conventional analytical techniques are of limited use when studying the degradation of heterogeneous materials such as impact polypropylene copolymers (ICPP). These copolymers consist of a number of components of different monomer contents, isotacticity and crystallinity, ranging from amorphous EPR to highly crystalline polypropylene. The individual components are affected differently by degradation, leading to heterogeneity within the degradation of impact copolymers. Novel analytical approaches that acknowledge the heterogeneity in sample composition are needed to study the degradation behaviour of such heterogeneous materials. This study describes the combination of fractionation and hyphenated techniques with conventional analyses for extensive structural characterisation of complex impact copolymers as well as their degradation behaviour. Temperature rising elution fractionation (TREF) coupled to conventional techniques such as size exclusion chromatography (SEC), Fourier-Transform infrared spectroscopy (FTIR), Carbon-13 nuclear magnetic resonance (13C-NMR) and differential scanning calorimetry (DSC) indicated the ICPPs in question to consist of four main components, namely ethylene-propylene random copolymers (EPR), isotactic PP (iPP), as well as semi-crystalline ethylene-propylene copolymers (EPC) and lower isotacticity PP. The degradation of an ICPP was studied by a multi-component analysis procedure consisting of TREF coupled to SEC, 13C-NMR, as well as SEC-FTIR. Results obtained by this procedure indicated the change in crystallisability of the bulk sample observed by TREF, crystallisation analysis fractionation (CRYSTAF) and DSC to be the result of the preferential degradation of the iPP phase. Degradation of ICPPs initiates within this phase where chain scission and carbonyl group insertion leads to a change in the crystallisability of iPP chains. During TREF of degraded bulk ICPPs, the degraded iPP molecules elute at lower elution temperatures, depending on their degree of degradation. The other components of the copolymer were degraded to a lesser extent. Degradation products were also found to be heterogeneously distributed across the molecular weight distribution of each fraction, with a higher concentration appearing at the low molecular weight side. The multi-component analysis procedure was also used to study the difference in degradation behaviour between ICPPs of different comonomer content, isotacticity and crystallinity. The spatial heterogeneity of degradation within ICPPs was studied by Fourier-Transform infrared microspectroscopy (FTIR-μS). A heterogeneous distribution of…

Advisors/Committee Members: Pasch, H., Mallon, P. E., University of Stellenbosch. Faculty of Science. Dept. of Chemistry and Polymer Science..

Subjects/Keywords: Polymer science; Polypropylene

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APA (6^th Edition):

De Goede, E. (2009). The development of analytical techniques for studying degradation in impact polypropylene copolymers. (Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/1162

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

De Goede, Elana. “The development of analytical techniques for studying degradation in impact polypropylene copolymers.” 2009. Thesis, Stellenbosch University. Accessed October 19, 2019. http://hdl.handle.net/10019.1/1162.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

De Goede, Elana. “The development of analytical techniques for studying degradation in impact polypropylene copolymers.” 2009. Web. 19 Oct 2019.

Vancouver:

De Goede E. The development of analytical techniques for studying degradation in impact polypropylene copolymers. [Internet] [Thesis]. Stellenbosch University; 2009. [cited 2019 Oct 19]. Available from: http://hdl.handle.net/10019.1/1162.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

De Goede E. The development of analytical techniques for studying degradation in impact polypropylene copolymers. [Thesis]. Stellenbosch University; 2009. Available from: http://hdl.handle.net/10019.1/1162

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

North Carolina State University

10. Viswanath, Vidya. Degradation Studies of Polypropylene Fibers and Nonwovens with Prodegradant additives.

Degree: MS, Textile Engineering, 2010, North Carolina State University

URL: http://www.lib.ncsu.edu/resolver/1840.16/6302

► The purpose of this research is to investigate an inexpensive pro-oxidant and pro-degradant additive system that can be applied during melt processing to produce biodegradable… (more)

Subjects/Keywords: additives; polypropylene; degradation

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APA (6^th Edition):

Viswanath, V. (2010). Degradation Studies of Polypropylene Fibers and Nonwovens with Prodegradant additives. (Thesis). North Carolina State University. Retrieved from http://www.lib.ncsu.edu/resolver/1840.16/6302

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Viswanath, Vidya. “Degradation Studies of Polypropylene Fibers and Nonwovens with Prodegradant additives.” 2010. Thesis, North Carolina State University. Accessed October 19, 2019. http://www.lib.ncsu.edu/resolver/1840.16/6302.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Viswanath, Vidya. “Degradation Studies of Polypropylene Fibers and Nonwovens with Prodegradant additives.” 2010. Web. 19 Oct 2019.

Vancouver:

Viswanath V. Degradation Studies of Polypropylene Fibers and Nonwovens with Prodegradant additives. [Internet] [Thesis]. North Carolina State University; 2010. [cited 2019 Oct 19]. Available from: http://www.lib.ncsu.edu/resolver/1840.16/6302.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Viswanath V. Degradation Studies of Polypropylene Fibers and Nonwovens with Prodegradant additives. [Thesis]. North Carolina State University; 2010. Available from: http://www.lib.ncsu.edu/resolver/1840.16/6302

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Alberta

11. Khademi, Fatemeh. Characterization of the Effect of Recycled Polypropylene Using DOE.

Degree: MS, Department of Mechanical Engineering, 2015, University of Alberta

URL: https://era.library.ualberta.ca/files/qf85nf11m

► Polypropylene (PP) is a thermoplastic polymer and is one of the most widely used polyolefin polymer, which is a well-known semi crystalline polymer. Plastics such… (more)

▼ Polypropylene (PP) is a thermoplastic polymer and is one of the most widely used polyolefin polymer, which is a well-known semi crystalline polymer. Plastics such as polypropylene are commonly used for different applications and purposes due to their versatility; however, it should be noted that our current approaches in plastic product production, consumption and disposal are not sustainable and causes concerns for environment and human health. Hence, appropriate use and disposal, especially recycling has an essential role. There are several studies investigating the chemical and mechanical properties of polypropylene; and also there are a few studies on the effects of multiple recycling on chemical and mechanical behavior of polypropylene; however, there are relatively few investigations involving combination of virgin and recycled polypropylene. To more accurately investigate the effects of the addition of different percentage of recycled polypropylene on tensile properties of polypropylene this study was conducted. Also the effects of annealing and glass fiber additive on recycled content polypropylene are investigated in this study. Cold temperature effect on polypropylene properties also investigated (due to environmental conditions in Edmonton). Hence, using design of experiment (DOE) methods, the effects of all these factors on tensile behavior of polypropylene is carried out in detail. Also a wide angle X-ray diffraction (WAXD) system is used to investigate on crystalline structure of the recycled content polypropylene samples to better explain their tensile behavior. Furthermore, drop test simulations are performed on a sample box, using the measured tensile properties at room temperature as a case study. Based on the current experimental study, and combination with the literature reviews, it is concluded that recycled material could be use without detrimental effect on the material properties of polypropylene. Guidelines of this study could be useful for further studies on different materials or more combinations. The comprehensive tensile results obtained through this study are valuable for plastic industries and designers, which could be helpful to reduce industries, cost of material and also recycling is one of the most environmental friendly ways to dispose plastics. Combination of DOE methods and statistical analysis with tensile experiments and FEA simulations makes a powerful method which could be used as a guideline for further studies, other researchers, industries and designers to reduce cost and plastic production.

Subjects/Keywords: Recycled; Polypropylene; DOE; Mechanical properties

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Khademi, F. (2015). Characterization of the Effect of Recycled Polypropylene Using DOE. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/qf85nf11m

Chicago Manual of Style (16^th Edition):

Khademi, Fatemeh. “Characterization of the Effect of Recycled Polypropylene Using DOE.” 2015. Masters Thesis, University of Alberta. Accessed October 19, 2019. https://era.library.ualberta.ca/files/qf85nf11m.

MLA Handbook (7^th Edition):

Khademi, Fatemeh. “Characterization of the Effect of Recycled Polypropylene Using DOE.” 2015. Web. 19 Oct 2019.

Vancouver:

Khademi F. Characterization of the Effect of Recycled Polypropylene Using DOE. [Internet] [Masters thesis]. University of Alberta; 2015. [cited 2019 Oct 19]. Available from: https://era.library.ualberta.ca/files/qf85nf11m.

Council of Science Editors:

Khademi F. Characterization of the Effect of Recycled Polypropylene Using DOE. [Masters Thesis]. University of Alberta; 2015. Available from: https://era.library.ualberta.ca/files/qf85nf11m

Mahatma Gandhi University

12. Jose, Seno. Compatibilisation of polypropylene/high density polyethylene and polypropylene/polyamide 12 blends.

Degree: 2010, Mahatma Gandhi University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/517

Glossary included Advisors/Committee Members: Thomas, Sabu, Mathew, Chandy C.

Subjects/Keywords: Polypropylene; Polyamide

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jose, S. (2010). Compatibilisation of polypropylene/high density polyethylene and polypropylene/polyamide 12 blends. (Thesis). Mahatma Gandhi University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/517

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jose, Seno. “Compatibilisation of polypropylene/high density polyethylene and polypropylene/polyamide 12 blends.” 2010. Thesis, Mahatma Gandhi University. Accessed October 19, 2019. http://shodhganga.inflibnet.ac.in/handle/10603/517.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jose, Seno. “Compatibilisation of polypropylene/high density polyethylene and polypropylene/polyamide 12 blends.” 2010. Web. 19 Oct 2019.

Vancouver:

Jose S. Compatibilisation of polypropylene/high density polyethylene and polypropylene/polyamide 12 blends. [Internet] [Thesis]. Mahatma Gandhi University; 2010. [cited 2019 Oct 19]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/517.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jose S. Compatibilisation of polypropylene/high density polyethylene and polypropylene/polyamide 12 blends. [Thesis]. Mahatma Gandhi University; 2010. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/517

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

13. Soma, Hirokazu. 結晶形態と分子配向状態を制御したポリプロピレン射出成形体の設計.

Degree: Japan Advanced Institute of Science and Technology / 北陸先端科学技術大学院大学

URL: http://hdl.handle.net/10119/11257

Supervisor:山口政之

マテリアルサイエンス研究科

修士

Subjects/Keywords: ポリプロピレン; polypropylene

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APA (6^th Edition):

Soma, H. (n.d.). 結晶形態と分子配向状態を制御したポリプロピレン射出成形体の設計. (Thesis). Japan Advanced Institute of Science and Technology / 北陸先端科学技術大学院大学. Retrieved from http://hdl.handle.net/10119/11257

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Soma, Hirokazu. “結晶形態と分子配向状態を制御したポリプロピレン射出成形体の設計.” Thesis, Japan Advanced Institute of Science and Technology / 北陸先端科学技術大学院大学. Accessed October 19, 2019. http://hdl.handle.net/10119/11257.

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Soma, Hirokazu. “結晶形態と分子配向状態を制御したポリプロピレン射出成形体の設計.” Web. 19 Oct 2019.

Note: this citation may be lacking information needed for this citation format:
No year of publication.

Vancouver:

Soma H. 結晶形態と分子配向状態を制御したポリプロピレン射出成形体の設計. [Internet] [Thesis]. Japan Advanced Institute of Science and Technology / 北陸先端科学技術大学院大学; [cited 2019 Oct 19]. Available from: http://hdl.handle.net/10119/11257.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

Council of Science Editors:

Soma H. 結晶形態と分子配向状態を制御したポリプロピレン射出成形体の設計. [Thesis]. Japan Advanced Institute of Science and Technology / 北陸先端科学技術大学院大学; Available from: http://hdl.handle.net/10119/11257

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

Hong Kong University of Science and Technology

14. Lin, Yong. Toughening mechanism of polypropylene/calcium carbonate nanocomposites.

Degree: 2009, Hong Kong University of Science and Technology

URL: https://doi.org/10.14711/thesis-b1070497 ; http://repository.ust.hk/ir/bitstream/1783.1-6286/1/th_redirect.html

► The toughening mechanism of isotactic-polypropylene (iPP) filled with calcium carbonate (CaCO3) nanoparticles is studied. Good dispersion of the nanoparticles in the iPP matrix was achieved… (more)

▼ The toughening mechanism of isotactic-polypropylene (iPP) filled with calcium carbonate (CaCO3) nanoparticles is studied. Good dispersion of the nanoparticles in the iPP matrix was achieved with a monolayer coating of stearic acid on the nanoparticles surface. Two iPPs with different molecular weights (MW) were used in this study. The impact strength of the high-MW-iPP/20 wt% CaCO3 nanocomposite was increased from 50 to 890 J/m after annealing, which is the highest impact strength of iPP/CaCO3 nanocomposites ever reported in the literature so far. The micro-morphology on an arrested crack tip of the annealed nanocomposite revealed that the collective collapse of the strained ligaments at the crack tip was responsible for the formation of macro-cracks and the consequent catastrophic crack propagation. Strong ligaments, which have high fracture stress and were achieved by using the high MW iPP, stabilized the crack initiation process and hence promoted energy dissipation. Moreover, a large number of cavities formed in the annealed nanocomposites after deformation facilitated the shear yielding of the ligaments, leading to massive plastic deformation and remarkable energy dissipation. In addition, a critical nanoparticle concentration, which was corresponding to a brittle-to-ductile transition, was observed in the low-MW-iPP/CaCO3 nanocomposites. The massive plastic deformation of the ligaments of iPP matrix enabled by the plane-strain to plane-stress transition is concluded to be the toughening mechanism of the PP/CaCO3 nanocomposites. The scale and the extent of the plastic deformation are determined by the competition between the fracture stress and yield stress of ligaments. A high fracture stress of the ligaments is favorable to stabilize the crack initiation stage and to allow for the expansion of the plastic deformation zone. A lower stress level for yielding is accomplished when the plastic constraint of the ligaments is significantly released. Both the numerous cavities and the nanoparticle concentrations above the critical point significantly release the plastic constraint.

Subjects/Keywords: Nanocomposites (Materials); Polypropylene; Calcium carbonate

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APA (6^th Edition):

Lin, Y. (2009). Toughening mechanism of polypropylene/calcium carbonate nanocomposites. (Thesis). Hong Kong University of Science and Technology. Retrieved from https://doi.org/10.14711/thesis-b1070497 ; http://repository.ust.hk/ir/bitstream/1783.1-6286/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lin, Yong. “Toughening mechanism of polypropylene/calcium carbonate nanocomposites.” 2009. Thesis, Hong Kong University of Science and Technology. Accessed October 19, 2019. https://doi.org/10.14711/thesis-b1070497 ; http://repository.ust.hk/ir/bitstream/1783.1-6286/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lin, Yong. “Toughening mechanism of polypropylene/calcium carbonate nanocomposites.” 2009. Web. 19 Oct 2019.

Vancouver:

Lin Y. Toughening mechanism of polypropylene/calcium carbonate nanocomposites. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2009. [cited 2019 Oct 19]. Available from: https://doi.org/10.14711/thesis-b1070497 ; http://repository.ust.hk/ir/bitstream/1783.1-6286/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lin Y. Toughening mechanism of polypropylene/calcium carbonate nanocomposites. [Thesis]. Hong Kong University of Science and Technology; 2009. Available from: https://doi.org/10.14711/thesis-b1070497 ; http://repository.ust.hk/ir/bitstream/1783.1-6286/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

McGill University

15. Rieger, Jean-Marc. Flow of short fiber-filled polypropylene melts.

Degree: M. Eng., Department of Chemical Engineering, 1977, McGill University

URL: http://digitool.library.mcgill.ca/thesisfile54109.pdf

Subjects/Keywords: Thermoplastics.; Polypropylene.

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Rieger, J. (1977). Flow of short fiber-filled polypropylene melts. (Masters Thesis). McGill University. Retrieved from http://digitool.library.mcgill.ca/thesisfile54109.pdf

Chicago Manual of Style (16^th Edition):

Rieger, Jean-Marc. “Flow of short fiber-filled polypropylene melts.” 1977. Masters Thesis, McGill University. Accessed October 19, 2019. http://digitool.library.mcgill.ca/thesisfile54109.pdf.

MLA Handbook (7^th Edition):

Rieger, Jean-Marc. “Flow of short fiber-filled polypropylene melts.” 1977. Web. 19 Oct 2019.

Vancouver:

Rieger J. Flow of short fiber-filled polypropylene melts. [Internet] [Masters thesis]. McGill University; 1977. [cited 2019 Oct 19]. Available from: http://digitool.library.mcgill.ca/thesisfile54109.pdf.

Council of Science Editors:

Rieger J. Flow of short fiber-filled polypropylene melts. [Masters Thesis]. McGill University; 1977. Available from: http://digitool.library.mcgill.ca/thesisfile54109.pdf

Stellenbosch University

16. Harding, Gareth. The structure-property relationships of polyolefins.

Degree: Chemistry and Polymer Science, 2009, Stellenbosch University

URL: http://hdl.handle.net/10019.1/1386

►

Thesis (PhD (Chemistry and Polymer Science)) – University of Stellenbosch, 2009

Polypropylene is an extremely versatile material and has a broad spectrum of applications due to… (more)

▼

Thesis (PhD (Chemistry and Polymer Science)) – University of Stellenbosch, 2009

Polypropylene is an extremely versatile material and has a broad spectrum of applications due to the variations in properties which are possible with this material. The variations in the properties of the material are governed by the microstructure of the chains constituting the polymer. The microstructure varies according to the production methods, i.e. the polymerisation conditions. Varying the manner in which the polymer is produced therefore changes the properties of the material allowing the polymers’ use for different applications. The most important factor affecting the way in which the polymers are produced is the nature of the active sites on the catalyst. Changing the chemical environment of the active sites changes the way in which the polymerisation is controlled and greatly affects the types of chains produced and thus polymer properties. The study examines the structure-property relationships of polyolefins with specific focus on the polypropylene homopolymer. The temperature rising elution fractionation (TREF) technique is used extensively in order to isolate specific fractions of the polymer. The importance of specific TREF fractions is investigated via a two pronged investigative methodology. On the one hand specific TREF fractions are removed from a sample, allowing the analysis of the properties of the material without that specific fraction, thereby revealing the influence which the fraction in question has on the properties. The other branch of the study investigates the chemical modification of the active sites of a Ziegler-Natta catalyst so as to be able to modify the properties of the polymer in the reactor, in a similar manner to physically removing fractions. The techniques are related and it was discovered that the amount of the fractions of the polymer, found to be important using the one technique, also turned out to be important using the other method. Initial method development work utilised a polypropylene-1-pentene copolymer since the molecular heterogeneity of this material is such that large differences are observed upon removal of fractions. The technique was then applied to a Ziegler-Natta catalysed polypropylene homopolymer. Each TREF fraction is successively removed and the residual material analysed. Specific TREF fractions were found to play a significant role in determining the polymer properties since there was a drastic reduction in properties upon removal of these fractions. The polymerisation of propylene was also performed at a variety of conditions in order to investigate different ways in which the catalyst system could be modified. Specific reaction conditions were chosen for in-depth analysis and structure-property correlation. The chemical modification of the active sites was accomplished via the introduction of an external Lewis base (electron donor) to the polymerisation system, and also by varying the external donor/catalyst ratio used. Two different…

Advisors/Committee Members: Van Reenen, A. J., University of Stellenbosch. Faculty of Science. Dept. of Chemistry and Polymer Science..

Subjects/Keywords: Polymer science; Polymerization; Polypropylene; Copolymers

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Harding, G. (2009). The structure-property relationships of polyolefins. (Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/1386

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Harding, Gareth. “The structure-property relationships of polyolefins.” 2009. Thesis, Stellenbosch University. Accessed October 19, 2019. http://hdl.handle.net/10019.1/1386.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Harding, Gareth. “The structure-property relationships of polyolefins.” 2009. Web. 19 Oct 2019.

Vancouver:

Harding G. The structure-property relationships of polyolefins. [Internet] [Thesis]. Stellenbosch University; 2009. [cited 2019 Oct 19]. Available from: http://hdl.handle.net/10019.1/1386.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Harding G. The structure-property relationships of polyolefins. [Thesis]. Stellenbosch University; 2009. Available from: http://hdl.handle.net/10019.1/1386

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Stellenbosch University

17. Parku, George Kofi. Pyrolysis of waste polypropylene plastics for energy recovery: Investigation of operating parameters and process development at pilot scale.

Degree: MEng, Process Engineering, 2019, Stellenbosch University

URL: http://hdl.handle.net/10019.1/106208

► ENGLISH ABSTRACT: Polypropylene (PP) has been identified as the second most abundant plastic waste in landfills globally and the fastest growing plastic waste in South… (more)

▼ ENGLISH ABSTRACT: Polypropylene (PP) has been identified as the second most abundant plastic waste in landfills globally and the fastest growing plastic waste in South Africa. The increasing numbers have been attributed to the limitation of conventional mechanical recycling not being able to handle plastic wastes contaminated with other organic wastes. Recycling via pyrolysis has been identified as a promising option to managing these plastic wastes due to its ability to handle significant levels of contamination and also yielding products with huge fuel prospects from plastics. Pyrolysis under vacuum conditions for other organic wastes such as biomass has demonstrated promising yields of condensable products. Unfortunately, pyrolysis of plastics under vacuum has received very little attention. Also, transition from bench to industrial scale applications of pyrolysis processes could be complicated and pilot scale processes to mediate between both levels are very helpful towards attaining the sustainable commercialisation of plastics pyrolysis into fuels. The aim of the study was to investigate the effects of key process parameters (that include temperature and heating rate) on products yield distribution and quality of condensable products from the pyrolysis of waste PP plastics at bench scale under atmospheric and vacuum conditions. Four temperatures (450, 488, 525 and 600 ᵒC) were investigated at two distinct heating rates of 15 ᵒC/min (slow), 175 ᵒC/min (fast). As part of the aims of the study, a 5 kg/h pyrolysis pilot plant was also designed and commissioned after which tests obtained from atmospheric fast heating rates were scaled-up to the commissioned pilot. Pyrolysis of PP under atmospheric slow and fast heating rates revealed maximum condensable products (oil and wax) yields of 85.6 and 84.5 wt.% respectively all attained at 488 ᵒC after which further increase of temperature resulted in secondary cracking reactions which promoted yields of permanent gases against condensables. Cracking was however more severe under fast heating rates due to the combined effects of higher temperature and faster heating rate. Gas Chromatography/ Mass Spectrometry (GC/MS) analysis of condensable products obtained under these conditions also revealed that production of gasoline range compounds was favoured mostly under reactions where some cracking reactions occur. Also, Higher Heating Values (HHVs) of condensable products recovered under atmospheric conditions ranged between 41 - 45 MJ/kg. HHVs were however seen to decrease at severe temperature and heating rate conditions due to the increased production of aromatics. Maximum yields of condensable products for slow and fast heating rates under vacuum conditions were reported to be 92.7 wt.% (at 525 ᵒC) and 91.8 wt.% (at 488 ᵒC) respectively. Total yields of condensable products under vacuum were observed to be higher than the corresponding yields under atmospheric conditions. Unlike atmospheric conditions, diesel range compounds predominated all condensable products… Advisors/Committee Members: Gorgens, J. F., Stellenbosch University. Faculty of Engineering. Dept. of Process Engineering..

Subjects/Keywords: Pyrolysis; Polypropylene; Fuel; Vacuum; UCTD

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Parku, G. K. (2019). Pyrolysis of waste polypropylene plastics for energy recovery: Investigation of operating parameters and process development at pilot scale. (Thesis). Stellenbosch University. Retrieved from http://hdl.handle.net/10019.1/106208

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Parku, George Kofi. “Pyrolysis of waste polypropylene plastics for energy recovery: Investigation of operating parameters and process development at pilot scale.” 2019. Thesis, Stellenbosch University. Accessed October 19, 2019. http://hdl.handle.net/10019.1/106208.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Parku, George Kofi. “Pyrolysis of waste polypropylene plastics for energy recovery: Investigation of operating parameters and process development at pilot scale.” 2019. Web. 19 Oct 2019.

Vancouver:

Parku GK. Pyrolysis of waste polypropylene plastics for energy recovery: Investigation of operating parameters and process development at pilot scale. [Internet] [Thesis]. Stellenbosch University; 2019. [cited 2019 Oct 19]. Available from: http://hdl.handle.net/10019.1/106208.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Parku GK. Pyrolysis of waste polypropylene plastics for energy recovery: Investigation of operating parameters and process development at pilot scale. [Thesis]. Stellenbosch University; 2019. Available from: http://hdl.handle.net/10019.1/106208

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Johannesburg

18. Tu, Lin. Development of surface fluorinated polypropylene fibres for use in concrete.

Degree: 2014, University of Johannesburg

URL: http://hdl.handle.net/10210/9436

►

D.Ing. (Civil Engineering)

Polypropylene (PP) fibre is one of the most widely used fibres for reinforcing concrete. Due to its unique material properties such as… (more)

▼

D.Ing. (Civil Engineering)

Polypropylene (PP) fibre is one of the most widely used fibres for reinforcing concrete. Due to its unique material properties such as economic production cost, relatively high melting point and alkaline resistance, PP fibres in concrete are found to increase the toughness, provide restrained plastic and drying shrinkage cracking resistance, increase impact resistance and flexural loading capacity (especially during the post-crack stage) of concrete structures and components. The wettability of PP fibre surfaces is poor due to the hydrophobic surface nature of polypropylene. The bonding between the PP fibre and the concrete matrix is recognized as poor and currently the PP fibre / concrete interfacial bonding depends upon interlocking and keying (mechanical bonding). As the interfacial bond strength between the PP fibre and the concrete is much smaller than the tensile strength of PP fibre and concrete, in order to fully explore the reinforcing effect of PP fibres in concrete, further improvement of interfacial bonding is necessary. In this investigation, the research work was conducted on the surface oxyfluorinated PP fibre newly developed by the Atomic Energy Corporation of South Africa Limited. Examining the feasibility of using this fibre in concrete, as well as evaluating its superiority over unmodified PP fibres, is the key task of this investigation. This new type of oxyfluorinated PP fibre shows a large increase in interfacial bond strength compared to the unmodified PP fibres. The surface free energy concept and Lewis acid-base interfacial interaction theory were innovatively used to examine the interfacial bonding between the PP fibre and the concrete matrix. The purpose of this study was to develop the background of such oxyfluorinated PP fibres, to establish the mechanism of the increase in interfacial bonding and to investigate the basic properties of the concrete incorporating oxyfluorinated PP fibres. The experimental results on the properties of oxyfluorinated PP fibre reinforced concrete compared with those of unmodified PP fibre reinforced concrete and plain concrete are presented, with some field test results focused on the improvement in shrinkage cracking control capacity. It is concluded in this investigation that the surface oxyfluorinated PP fibres possess significantly increased PP fibre / concrete interfacial bonding due to the chemical bond arising from the acid base interfacial interaction and the intimate interfacial contact arising from the improved fibre surface wettability. When combining oxyfluorinated pp fibre with concrete, a general improvement in the physical and mechanical properties of fibrous concrete compared to that created with unmodified PP fibres, is obtained.

Subjects/Keywords: Reinforced concrete; Polypropylene fibers

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tu, L. (2014). Development of surface fluorinated polypropylene fibres for use in concrete. (Thesis). University of Johannesburg. Retrieved from http://hdl.handle.net/10210/9436

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tu, Lin. “Development of surface fluorinated polypropylene fibres for use in concrete.” 2014. Thesis, University of Johannesburg. Accessed October 19, 2019. http://hdl.handle.net/10210/9436.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tu, Lin. “Development of surface fluorinated polypropylene fibres for use in concrete.” 2014. Web. 19 Oct 2019.

Vancouver:

Tu L. Development of surface fluorinated polypropylene fibres for use in concrete. [Internet] [Thesis]. University of Johannesburg; 2014. [cited 2019 Oct 19]. Available from: http://hdl.handle.net/10210/9436.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tu L. Development of surface fluorinated polypropylene fibres for use in concrete. [Thesis]. University of Johannesburg; 2014. Available from: http://hdl.handle.net/10210/9436

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University

19. Petrie, Kyle. COMPOSITES OF MULTI-WALLED CARBON NANOTUBES WITH POLYPROPYLENE AND THERMOPLASTIC OLEFIN BLENDS PREPARED BY MELT COMPOUNDING .

Degree: Chemical Engineering, 2013, Queens University

URL: http://hdl.handle.net/1974/8371

► Composites of multi-walled carbon nanotubes (MWCNTs) with polypropylene (PP) and thermoplastic olefins (TPOs) were prepared by melt compounding. Two non-covalent functionalization methods were employed to… (more)

▼ Composites of multi-walled carbon nanotubes (MWCNTs) with polypropylene (PP) and thermoplastic olefins (TPOs) were prepared by melt compounding. Two non-covalent functionalization methods were employed to improve nanotube dispersion and the resulting composite properties are reported. The first functionalization approach involved partial coating of the surface of the nanotubes with a hyperbranched polyethylene (HBPE). MWCNT functionalization with HBPE was only moderately successful in breaking up the large aggregates that formed upon melt mixing with PP. In spite of the formation of large aggregates, the samples were conductive above a percolation threshold of 7.3 wt%. MWCNT functionalization did not disrupt the electrical conductivity of the nanotubes. The composite strength was improved with addition of nanotubes, but ductility was severely compromised because of the existence of aggregates. The second method involved PP matrix functionalization with aromatic moieties capable of π-π interaction with MWCNT sidewalls. Various microscopy techniques revealed the addition of only 25 wt% of PP-g-pyridine (Py) to the neat PP was capable of drastically reducing nanotube aggregate size and amount. Raman spectroscopy confirmed improved polymer/nanotube interaction with the PP-g-Py matrix. Electrical percolation threshold was obtained at a MWCNT loading of approximately 1.2 wt%. Electrical conductivity on the order of 10-2 S/m was achieved, suggesting possible use in semi-conducting applications. Composite strength was improved upon addition of MWCNTs. The matrix functionalization with Py resulted in a significant improvement in composite ductility when filled with MWCNTs in comparison to its maleic anhydride (MA) counterpart. Preliminary investigations suggest that the use of alternating current (AC) electric fields may be effective in aligning nanotubes in PP to reduce the filler loading required for electrical percolation. Composites containing MWCNT within PP/ethylene-octene copolymer (EOC) blends were prepared. Microscopy revealed that MWCNTs localized preferentially in the EOC phase. This was explained by the tendency of the system to minimize interfacial energy when the MWCNTs reside in the thermodynamically preferential phase. A kinetic approach, which involved pre-mixing the MWCNTs with PP and adding the EOC phase subsequently was attempted to monitor the migration of MWCNTs. MWCNTs began to migrate after two minutes of melt mixing with the EOC. The PP-g-Py matrix functionalization appears to slightly delay the migration. A reduction in electrical percolation threshold to 0.5 wt% MWCNTs was achieved with a co-continuous blend morphology, consisting of a 50/50 by weight ratio of PP and EOC.

Subjects/Keywords: Nanocomposites; Blends; Polypropylene; Carbon nanotubes

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APA (6^th Edition):

Petrie, K. (2013). COMPOSITES OF MULTI-WALLED CARBON NANOTUBES WITH POLYPROPYLENE AND THERMOPLASTIC OLEFIN BLENDS PREPARED BY MELT COMPOUNDING . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/8371

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Petrie, Kyle. “COMPOSITES OF MULTI-WALLED CARBON NANOTUBES WITH POLYPROPYLENE AND THERMOPLASTIC OLEFIN BLENDS PREPARED BY MELT COMPOUNDING .” 2013. Thesis, Queens University. Accessed October 19, 2019. http://hdl.handle.net/1974/8371.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Petrie, Kyle. “COMPOSITES OF MULTI-WALLED CARBON NANOTUBES WITH POLYPROPYLENE AND THERMOPLASTIC OLEFIN BLENDS PREPARED BY MELT COMPOUNDING .” 2013. Web. 19 Oct 2019.

Vancouver:

Petrie K. COMPOSITES OF MULTI-WALLED CARBON NANOTUBES WITH POLYPROPYLENE AND THERMOPLASTIC OLEFIN BLENDS PREPARED BY MELT COMPOUNDING . [Internet] [Thesis]. Queens University; 2013. [cited 2019 Oct 19]. Available from: http://hdl.handle.net/1974/8371.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Petrie K. COMPOSITES OF MULTI-WALLED CARBON NANOTUBES WITH POLYPROPYLENE AND THERMOPLASTIC OLEFIN BLENDS PREPARED BY MELT COMPOUNDING . [Thesis]. Queens University; 2013. Available from: http://hdl.handle.net/1974/8371

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Clemson University

20. Nikon, Charles. Reinforcement of Cement with Polypropylene Mesh.

Degree: MS, School of Materials Science and Engineering, 2019, Clemson University

URL: https://tigerprints.clemson.edu/all_theses/3174

► Concrete is one of the world's most widely used building materials for many reasons including: relatively low cost, moldability, and high compressive strength. This… (more)

Subjects/Keywords: Cement; Concrete; Impact; Polypropylene; Toughness

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APA (6^th Edition):

Nikon, C. (2019). Reinforcement of Cement with Polypropylene Mesh. (Masters Thesis). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_theses/3174

Chicago Manual of Style (16^th Edition):

Nikon, Charles. “Reinforcement of Cement with Polypropylene Mesh.” 2019. Masters Thesis, Clemson University. Accessed October 19, 2019. https://tigerprints.clemson.edu/all_theses/3174.

MLA Handbook (7^th Edition):

Nikon, Charles. “Reinforcement of Cement with Polypropylene Mesh.” 2019. Web. 19 Oct 2019.

Vancouver:

Nikon C. Reinforcement of Cement with Polypropylene Mesh. [Internet] [Masters thesis]. Clemson University; 2019. [cited 2019 Oct 19]. Available from: https://tigerprints.clemson.edu/all_theses/3174.

Council of Science Editors:

Nikon C. Reinforcement of Cement with Polypropylene Mesh. [Masters Thesis]. Clemson University; 2019. Available from: https://tigerprints.clemson.edu/all_theses/3174

Anna University

21. Nagasankar P. Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;.

Degree: Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure, 2015, Anna University

URL: http://shodhganga.inflibnet.ac.in/handle/10603/49371

►

In this research work the dynamic characteristics of fiber reinforced polymer FRP composites under the influence of various factors have been investigated from the theoretical… (more)

Subjects/Keywords: Fiber reinforced polymer; honeycomb structure; Mechanical engineering; Polypropylene; Polypropylene honeycomb structure

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APA (6^th Edition):

P, N. (2015). Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/49371

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

P, Nagasankar. “Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;.” 2015. Thesis, Anna University. Accessed October 19, 2019. http://shodhganga.inflibnet.ac.in/handle/10603/49371.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

P, Nagasankar. “Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;.” 2015. Web. 19 Oct 2019.

Vancouver:

P N. Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;. [Internet] [Thesis]. Anna University; 2015. [cited 2019 Oct 19]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/49371.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

P N. Dynamic characteristics of fiber reinforced polymer composite with and without interleaving of polypropylene honeycomb structure;. [Thesis]. Anna University; 2015. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/49371

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

22. Ramzy, Amna. Recycling aspects of natural fiber reinforced polypropylene composites.

Degree: 2018, Technische Universität Dortmund

URL: https://doi.org/10.21268/20180124-134343 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20180124-135159-9 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000553 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000336/Db%20113512.pdf

► Natural fibers nowadays play a very important role in the composites industry due to their several attractive characteristics especially energy saving potential which addresses the… (more)

▼ Natural fibers nowadays play a very important role in the composites industry due to their several attractive characteristics especially energy saving potential which addresses the most vital industrial problem. Hence, this increasing demand of natural fiber thermoplastic composites in the market requires a technique to be established for handling the waste products out of these composites. The limitation of literature regarding the effect of recycling these for composites is the motivation for this work. This research focuses on recycling pre-consumer polypropylene compounds reinforced with sisal and hemp fibers up to five cycles. These two fibers are selected because they cover two main types of natural fibers: straight leaf fibers for sisal and branched bast fibers for hemp. Knowledge gained from these two types serves as a basis which could be implemented in future on other fibers from the same type. Natural fibers – being natural products – unlike synthetic fibers, offer unusual scatter of values, which in turn leads to the difficulty of assessing the effect of several reprocessing cycles on the compound. To be able to set a good foundation for this research, a thorough investigation on sisal and hemp fibers in both dry and compounded (with polypropylene) states is performed in the first section of this research followed by recycling of sisal and hemp compounds. A thorough investigation for determining the evolution of fiber shape and morphology is conducted on extracted fibers at selected cycles using dynamic image analysis in addition to FESEM and digital microscopy. Followed by rheological, flowability and thermal tests, the effect of number of cycles on the resulting properties could be analyzed based on the understanding of fibers morphology. Finally, mechanical tests are performed to assess the change in the compounds’ properties after recycling regarding the gained knowledge from the previous analysis. Understanding the difference in nature and consequently the difference in behavior between sisal and hemp fibers in the polypropylene melt gives an insight into comprehending the rheological and mechanical behavior of the compounds under study. Sisal with its straight and stiff fibers is less likely to agglomerate and build fiber clusters and is homogeneously distributed in the PP matrix. On the contrary, hemp fibers which are thin, branched and flexible tend to tangle up and build agglomerations of fiber clusters which hinder the homogenous distribution of the fibers in the matrix PP. This behavior affects the development of the viscosity along recycling cycles where sisal compound proves higher viscosity than hemp compound in the first cycles. Afterwards, due to recycling, hemp agglomerations disentangle and hemp fibers are shortened and distributed homogenously in the PP matrix causing increase in the overall compound viscosity. Flowability values show a three-stage behavior where compounds start at relatively low values (long sisal fibers / agglomerated hemp fibers). After the first and second… Advisors/Committee Members: Ziegmann, Gerhard.

Subjects/Keywords: ddc:620.1; Recycling – Natural Fibers – Polypropylene; Recycling – Natural Fibers – Polypropylene

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APA (6^th Edition):

Ramzy, A. (2018). Recycling aspects of natural fiber reinforced polypropylene composites. (Thesis). Technische Universität Dortmund. Retrieved from https://doi.org/10.21268/20180124-134343 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20180124-135159-9 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000553 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000336/Db%20113512.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ramzy, Amna. “Recycling aspects of natural fiber reinforced polypropylene composites.” 2018. Thesis, Technische Universität Dortmund. Accessed October 19, 2019. https://doi.org/10.21268/20180124-134343 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20180124-135159-9 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000553 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000336/Db%20113512.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ramzy, Amna. “Recycling aspects of natural fiber reinforced polypropylene composites.” 2018. Web. 19 Oct 2019.

Vancouver:

Ramzy A. Recycling aspects of natural fiber reinforced polypropylene composites. [Internet] [Thesis]. Technische Universität Dortmund; 2018. [cited 2019 Oct 19]. Available from: https://doi.org/10.21268/20180124-134343 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20180124-135159-9 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000553 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000336/Db%20113512.pdf.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ramzy A. Recycling aspects of natural fiber reinforced polypropylene composites. [Thesis]. Technische Universität Dortmund; 2018. Available from: https://doi.org/10.21268/20180124-134343 ; https://nbn-resolving.org/urn:nbn:de:gbv:104-20180124-135159-9 ; https://dokumente.ub.tu-clausthal.de/receive/clausthal_mods_00000553 ; https://dokumente.ub.tu-clausthal.de/servlets/MCRFileNodeServlet/clausthal_derivate_00000336/Db%20113512.pdf

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

23. Yamazaki, Atsuro. 多孔質ポリプロピレンフィルムの材料設計.

Degree: Japan Advanced Institute of Science and Technology / 北陸先端科学技術大学院大学

URL: http://hdl.handle.net/10119/11945

Supervisor:山口政之教授

マテリアルサイエンス研究科

修士

Subjects/Keywords: Polypropylene; Nucleating agent

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APA (6^th Edition):

Yamazaki, A. (n.d.). 多孔質ポリプロピレンフィルムの材料設計. (Thesis). Japan Advanced Institute of Science and Technology / 北陸先端科学技術大学院大学. Retrieved from http://hdl.handle.net/10119/11945

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yamazaki, Atsuro. “多孔質ポリプロピレンフィルムの材料設計.” Thesis, Japan Advanced Institute of Science and Technology / 北陸先端科学技術大学院大学. Accessed October 19, 2019. http://hdl.handle.net/10119/11945.

Note: this citation may be lacking information needed for this citation format:
No year of publication.
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yamazaki, Atsuro. “多孔質ポリプロピレンフィルムの材料設計.” Web. 19 Oct 2019.

Note: this citation may be lacking information needed for this citation format:
No year of publication.

Vancouver:

Yamazaki A. 多孔質ポリプロピレンフィルムの材料設計. [Internet] [Thesis]. Japan Advanced Institute of Science and Technology / 北陸先端科学技術大学院大学; [cited 2019 Oct 19]. Available from: http://hdl.handle.net/10119/11945.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

Council of Science Editors:

Yamazaki A. 多孔質ポリプロピレンフィルムの材料設計. [Thesis]. Japan Advanced Institute of Science and Technology / 北陸先端科学技術大学院大学; Available from: http://hdl.handle.net/10119/11945

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
No year of publication.

University of Hong Kong

24. Cheung, Wai-lam. The interfacial properties of glass fibre reinforced polypropylene.

Degree: PhD, 1990, University of Hong Kong

URL: Cheung, W. [張惠林]. (1990). The interfacial properties of glass fibre reinforced polypropylene. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b3123179 ; http://dx.doi.org/10.5353/th_b3123179 ; http://hdl.handle.net/10722/34565

published_or_final_version

Mechanical Engineering

Doctoral

Doctor of Philosophy

Subjects/Keywords: Glass fibers.; Polypropylene.

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APA (6^th Edition):

Cheung, W. (1990). The interfacial properties of glass fibre reinforced polypropylene. (Doctoral Dissertation). University of Hong Kong. Retrieved from Cheung, W. [張惠林]. (1990). The interfacial properties of glass fibre reinforced polypropylene. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b3123179 ; http://dx.doi.org/10.5353/th_b3123179 ; http://hdl.handle.net/10722/34565

Chicago Manual of Style (16^th Edition):

Cheung, Wai-lam. “The interfacial properties of glass fibre reinforced polypropylene.” 1990. Doctoral Dissertation, University of Hong Kong. Accessed October 19, 2019. Cheung, W. [張惠林]. (1990). The interfacial properties of glass fibre reinforced polypropylene. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b3123179 ; http://dx.doi.org/10.5353/th_b3123179 ; http://hdl.handle.net/10722/34565.

MLA Handbook (7^th Edition):

Cheung, Wai-lam. “The interfacial properties of glass fibre reinforced polypropylene.” 1990. Web. 19 Oct 2019.

Vancouver:

Cheung W. The interfacial properties of glass fibre reinforced polypropylene. [Internet] [Doctoral dissertation]. University of Hong Kong; 1990. [cited 2019 Oct 19]. Available from: Cheung, W. [張惠林]. (1990). The interfacial properties of glass fibre reinforced polypropylene. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b3123179 ; http://dx.doi.org/10.5353/th_b3123179 ; http://hdl.handle.net/10722/34565.

Council of Science Editors:

Cheung W. The interfacial properties of glass fibre reinforced polypropylene. [Doctoral Dissertation]. University of Hong Kong; 1990. Available from: Cheung, W. [張惠林]. (1990). The interfacial properties of glass fibre reinforced polypropylene. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b3123179 ; http://dx.doi.org/10.5353/th_b3123179 ; http://hdl.handle.net/10722/34565

University of Hong Kong

25. 李建雄; Li, Jianxiong. The lamellar structure and deformation mechanisms of {221}-polypropylene.

Degree: PhD, 1997, University of Hong Kong

URL: Li, J. [李建雄]. (1997). The lamellar structure and deformation mechanisms of β-polypropylene. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b3123736 ; http://dx.doi.org/10.5353/th_b3123736 ; http://hdl.handle.net/10722/35047

published_or_final_version

Mechanical Engineering

Doctoral

Doctor of Philosophy

Subjects/Keywords: Deformations (Mechanics); Polypropylene.

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APA (6^th Edition):

李建雄; Li, J. (1997). The lamellar structure and deformation mechanisms of {221}-polypropylene. (Doctoral Dissertation). University of Hong Kong. Retrieved from Li, J. [李建雄]. (1997). The lamellar structure and deformation mechanisms of β-polypropylene. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b3123736 ; http://dx.doi.org/10.5353/th_b3123736 ; http://hdl.handle.net/10722/35047

Chicago Manual of Style (16^th Edition):

李建雄; Li, Jianxiong. “The lamellar structure and deformation mechanisms of {221}-polypropylene.” 1997. Doctoral Dissertation, University of Hong Kong. Accessed October 19, 2019. Li, J. [李建雄]. (1997). The lamellar structure and deformation mechanisms of β-polypropylene. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b3123736 ; http://dx.doi.org/10.5353/th_b3123736 ; http://hdl.handle.net/10722/35047.

MLA Handbook (7^th Edition):

李建雄; Li, Jianxiong. “The lamellar structure and deformation mechanisms of {221}-polypropylene.” 1997. Web. 19 Oct 2019.

Vancouver:

李建雄; Li J. The lamellar structure and deformation mechanisms of {221}-polypropylene. [Internet] [Doctoral dissertation]. University of Hong Kong; 1997. [cited 2019 Oct 19]. Available from: Li, J. [李建雄]. (1997). The lamellar structure and deformation mechanisms of β-polypropylene. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b3123736 ; http://dx.doi.org/10.5353/th_b3123736 ; http://hdl.handle.net/10722/35047.

Council of Science Editors:

李建雄; Li J. The lamellar structure and deformation mechanisms of {221}-polypropylene. [Doctoral Dissertation]. University of Hong Kong; 1997. Available from: Li, J. [李建雄]. (1997). The lamellar structure and deformation mechanisms of β-polypropylene. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b3123736 ; http://dx.doi.org/10.5353/th_b3123736 ; http://hdl.handle.net/10722/35047

Hong Kong University of Science and Technology

26. Tang, Eunice Wai Chong. Preparation and characterization of polypropylene-polypropylene (PP-PP) composites.

Degree: 2003, Hong Kong University of Science and Technology

URL: https://doi.org/10.14711/thesis-b786509 ; http://repository.ust.hk/ir/bitstream/1783.1-5248/1/th_redirect.html

► Composites consisting of the same thermoplastic material for the matrix phase and reinforcement, the so-called ‘polymer unity composites’, are gaining increasing attention. These composites, typically… (more)

▼ Composites consisting of the same thermoplastic material for the matrix phase and reinforcement, the so-called ‘polymer unity composites’, are gaining increasing attention. These composites, typically those made from polypropylene (PP) and/or polyethylene (PE), possess distinct properties with potential unique applications. Unlike the conventional composites containing glass or carbon fibers embedded in polymer matrices, they can be easily recycled as they do not require the tedious process to separate the reinforcement fibers from the matrix before individual recycling. These composites can be called the ‘green composites’ as they are more environment-friendly than other coniposite materials in terms of ease of recycling. In the present study, the effects of various processing conditions, including different cooling rates and isothermal cooling, on the morphology and important mechanical properties of PP/PP composites consisting of homo-PP fibers and propylene-ethylene random copolymer matrix were characterized. The effect of service temperature was also evaluated. The interfacial adhesion was correlated to the degree of crystallinity, crystalline morphology and the bulk mechanical properties of the composite. Composite laminates of different cooling rates and thermal treatments were prepared using filming stacking and compression molding methods. The single filament fragmentation test was carried out to characterize the PP fibre-PP matrix interfacial adhesion. It is shown that the slow cooled samples had a higher interfacial shear strength (IFSS) than the fast cooled ones. It is shown that the tensile properties generally increased with decreasing cooling rate. The isothermal treatment also improved the tensile strength and modulus as the slow cooling rate did. This can be attributed to the change in the crystallinity induced by different thermal processes. A higher crystallinity in the slow cooled samples gives rise to a high tensile strength and modulus and a relative brittle fracture mechanism, whereas a lower crystallinity introduced by the fast cooling process results in a relatively high ductility with lower tensile properties. There were functionally similar variations in IFSS and tensile properties with respect to cooling rate. The Charpy impact test results indicate that the impact performance of the composites is highly dependent on the testing temperature. There was virtually no difference in impact fracture energy between the samples processed at different cooling rates when tested at room temperature. The sensitivity of cooling rate on impact fracture energy became significant when tested at sub-zero temperatures. The impact fracture energy were generally higher for the samples with slower cooling rates than the fast cooled samples.

Subjects/Keywords: Polypropylene; Composite materials

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APA (6^th Edition):

Tang, E. W. C. (2003). Preparation and characterization of polypropylene-polypropylene (PP-PP) composites. (Thesis). Hong Kong University of Science and Technology. Retrieved from https://doi.org/10.14711/thesis-b786509 ; http://repository.ust.hk/ir/bitstream/1783.1-5248/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tang, Eunice Wai Chong. “Preparation and characterization of polypropylene-polypropylene (PP-PP) composites.” 2003. Thesis, Hong Kong University of Science and Technology. Accessed October 19, 2019. https://doi.org/10.14711/thesis-b786509 ; http://repository.ust.hk/ir/bitstream/1783.1-5248/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tang, Eunice Wai Chong. “Preparation and characterization of polypropylene-polypropylene (PP-PP) composites.” 2003. Web. 19 Oct 2019.

Vancouver:

Tang EWC. Preparation and characterization of polypropylene-polypropylene (PP-PP) composites. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2003. [cited 2019 Oct 19]. Available from: https://doi.org/10.14711/thesis-b786509 ; http://repository.ust.hk/ir/bitstream/1783.1-5248/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tang EWC. Preparation and characterization of polypropylene-polypropylene (PP-PP) composites. [Thesis]. Hong Kong University of Science and Technology; 2003. Available from: https://doi.org/10.14711/thesis-b786509 ; http://repository.ust.hk/ir/bitstream/1783.1-5248/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Manchester

27. Ali, Ather. STRENGTHENING MASONRY FOR SEISMIC ACTIONS IN DEVELOPING COUNTRIES.

Degree: 2017, University of Manchester

URL: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:307753

► The study presented aims to provide the most viable seismic retrofit solution for rural masonry. Muzffarabad is one such region where excess of unreinforced masonry… (more)

▼ The study presented aims to provide the most viable seismic retrofit solution for rural masonry. Muzffarabad is one such region where excess of unreinforced masonry structures claimed thousands of lives during 2005 earthquake. Field study was conducted in the region to familiarize with the dynamics of local construction industry before suggesting a suitable retrofit solution. Polypropylene (PP-) band retrofit has been selected as the most viable solution for retrofitting existing masonry structures in terms of cost, material availability and ease of application. To prove the efficiency of PP-band retrofit, numerical simulations and laboratory tests were conducted to assess the seismic efficiency of PP-band retrofit. Material tests were conducted in accordance with BS-EN to familiarize with the mechanical properties of locally available materials in Kashmir region and to provide material data for numerical analysis. Tests revealed lower strength and elasticity for bricks in comparison to materials found in developed countries, due to the unregulated and non-standardized manufacturing of masonry units and high water content in mortars. Shake table tests were conducted to test the effectiveness of PP-band retrofit masonry under dynamic vibrations. Results show that PP-band retrofit can enhance the post peak performance by at least 7 times in comparison to non-retrofit specimen. Real-scale structure retrofit with PP-band survived accelerations of up to 2g without any life-threatening damage, thus, proving to be an economic and efficient strengthening solution for rural communities. Following the shortcomings observed in Room-1, connection detail for PP-bands in Room-2 was revised to achieve a 100% performance enhancement. Numerical models were developed to predict cracks in masonry and analyse diagonal compression test models, in accordance with ASTM standards. The results showed 30% higher residual strength after cracking for PP- band retrofit masonry and the wall integrity was maintained for higher deformations. Advisors/Committee Members: SWAILES, TOM T, Swailes, Tom, Mandal, Parthasarathi.

Subjects/Keywords: Masonry; Earthquake; Retrofit; Polypropylene; PP-bands; Kashmir

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Ali, A. (2017). STRENGTHENING MASONRY FOR SEISMIC ACTIONS IN DEVELOPING COUNTRIES. (Doctoral Dissertation). University of Manchester. Retrieved from http://www.manchester.ac.uk/escholar/uk-ac-man-scw:307753

Chicago Manual of Style (16^th Edition):

Ali, Ather. “STRENGTHENING MASONRY FOR SEISMIC ACTIONS IN DEVELOPING COUNTRIES.” 2017. Doctoral Dissertation, University of Manchester. Accessed October 19, 2019. http://www.manchester.ac.uk/escholar/uk-ac-man-scw:307753.

MLA Handbook (7^th Edition):

Ali, Ather. “STRENGTHENING MASONRY FOR SEISMIC ACTIONS IN DEVELOPING COUNTRIES.” 2017. Web. 19 Oct 2019.

Vancouver:

Ali A. STRENGTHENING MASONRY FOR SEISMIC ACTIONS IN DEVELOPING COUNTRIES. [Internet] [Doctoral dissertation]. University of Manchester; 2017. [cited 2019 Oct 19]. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:307753.

Council of Science Editors:

Ali A. STRENGTHENING MASONRY FOR SEISMIC ACTIONS IN DEVELOPING COUNTRIES. [Doctoral Dissertation]. University of Manchester; 2017. Available from: http://www.manchester.ac.uk/escholar/uk-ac-man-scw:307753

Hong Kong University of Science and Technology

28. Wang, Wei. Effect of matrix/particle interface on mechanical properties of polypropylene nanocomposites.

Degree: 2017, Hong Kong University of Science and Technology

URL: https://doi.org/10.14711/thesis-991012558769703412 ; http://repository.ust.hk/ir/bitstream/1783.1-90933/1/th_redirect.html

► The effect of the matrix/particle interface on the mechanical properties of polypropylene (PP) nanocomposites is studied. In the present study, grafting silica nanoparticles with polypropylene… (more)

▼ The effect of the matrix/particle interface on the mechanical properties of polypropylene (PP) nanocomposites is studied. In the present study, grafting silica nanoparticles with polypropylene chains (PP-grafted silica, PGS) is proven to be a promising strategy to strengthen or weaken the interfacial binding between PP matrix and PGS. The extents of strengthening or weakening effect are correlated to the grafting chain length of PGS. When the molecular weight of a graft is above the critical molecular weight (M_c) of PP, the T_g of the PP/PGS nanocomposite shows higher than the neat PP, indicating a strong interfacial interaction, and vice versa. Entanglement interaction between the grafting chain and the matrix is considered to be the key parameter governing interfacial strength. The change in the matrix/particle interfacial strength leads to a transition in the yield stress of nanocomposites. Compared with the unfilled PP, the yield stress of the PP/PGS nanocomposites is decreased in the case of unfavorable interaction and can be enhanced in the case of a strong interaction. In addition, benefiting from good dispersion, the PP/PGS nanocomposites with a strong matrix/particle interface not only exhibit increased Young’s modulus and yield stress, but also the strain at break remains in line with the unfilled PP, which is in contrast to the conventional wisdom that the gain in modulus and strength must be at the expense of the lower break strain. Due to the weak matrix/filler interface, the great improvement in impact toughness of PP filled with stearic acid modified CaCO₃ (SA-CaCO₃) nanoparticles has been reported. In the present study, the ligament strength relating to entanglement density was proven to be one of factors to influence the toughening effect by comparing the impact strength of the PP/SA-CaCO₃ nanocomposites before and after annealing. Considering PGS can be applied to strengthen the PP ligament, a ternary nanocomposite (PP/PGS/SA-CaCO₃) with multiple matrix/particle interfaces was prepared and studied. Young’s modulus and yield stress of the ternary nanocomposites performs as expected. However, the impact strength is comparable to that of neat PP. The toughening effect of SA-CaCO₃ in the PP/ SA-CaCO₃ system is ineffective in the ternary nanocomposites, which is attributed to the following fact: Because the attraction between PGS and SA-CaCO₃ is higher than that between the PP matrix and inorganic particles, the aggregates of two different particles form, where the weak interface of CaCO₃ acts as a sharp crack, leading to an insignificant change of impact resistance.

Subjects/Keywords: Polypropylene; Nanocomposites (Materials); Polymeric composites; Mechanical properties

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wang, W. (2017). Effect of matrix/particle interface on mechanical properties of polypropylene nanocomposites. (Thesis). Hong Kong University of Science and Technology. Retrieved from https://doi.org/10.14711/thesis-991012558769703412 ; http://repository.ust.hk/ir/bitstream/1783.1-90933/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Wei. “Effect of matrix/particle interface on mechanical properties of polypropylene nanocomposites.” 2017. Thesis, Hong Kong University of Science and Technology. Accessed October 19, 2019. https://doi.org/10.14711/thesis-991012558769703412 ; http://repository.ust.hk/ir/bitstream/1783.1-90933/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Wei. “Effect of matrix/particle interface on mechanical properties of polypropylene nanocomposites.” 2017. Web. 19 Oct 2019.

Vancouver:

Wang W. Effect of matrix/particle interface on mechanical properties of polypropylene nanocomposites. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2017. [cited 2019 Oct 19]. Available from: https://doi.org/10.14711/thesis-991012558769703412 ; http://repository.ust.hk/ir/bitstream/1783.1-90933/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang W. Effect of matrix/particle interface on mechanical properties of polypropylene nanocomposites. [Thesis]. Hong Kong University of Science and Technology; 2017. Available from: https://doi.org/10.14711/thesis-991012558769703412 ; http://repository.ust.hk/ir/bitstream/1783.1-90933/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Hong Kong University of Science and Technology

29. Zhang, Yiqing. Study on the synergistic effect and toughening mechanisms of PP/CaCO₃ nano-composites modified with glycidyl methacrylate grafted EPR.

Degree: 2017, Hong Kong University of Science and Technology

URL: https://doi.org/10.14711/thesis-991012555458403412 ; http://repository.ust.hk/ir/bitstream/1783.1-90948/1/th_redirect.html

► Polypropylene (PP) is one of the most commonly used synthetic resins. PP has a very good overall performance so that it is widely used in… (more)

▼ Polypropylene (PP) is one of the most commonly used synthetic resins. PP has a very good overall performance so that it is widely used in all aspects of the national economy. But there are also some obvious defects that limit the use of polypropylene in certain areas. Therefore, in order to overcome the shortcomings of performance, as well as improve its application, many researchers have focused on the investigation of polypropylene. In the present paper, in order to cope with the lack of toughness (that is one of the most important drawbacks of polypropylene) and poor rigid-tough balance in modification for PP, these problems are studied and discussed in detail. Firstly, the effect of nano-CaCO₃ on the mechanical properties of PP was also studied. It was found that nano-CaCO₃ had a better toughening effect on PP. When the content of nano-CaCO₃ were 35wt% and 30wt%, the impact strength attained the maximum value at room temperature (23℃) and low temperature (-20℃) respectively. When the content of nano-CaCO₃ was over a certain value, the impact strength drops dramatically due to the nanoparticles get into agglomeration. Meanwhile, the effects of the SPF179-g-GMA addition on the mechanical properties of PP and toughening effect of EPR on PP matrix were also investigated. In this paper, the PP/nano-CaCO₃/grafted impact co-PP (SPF179-g-GMA) system was studied and characterized in detail. Through the test of the mechanical properties, thermal properties, dimensional stability and processing properties of PP/nano-CaCO₃/grafted impact co-PP, the effect of each component on the various properties of the composites and microstructure were studied. It was found that the presence of ethylene-propylene rubber with polar functional groups in the three-phase system containing 40wt% calcium carbonate showed that the calcium carbonate did not appear as a dry powder agglomeration state in the two phases, but a large part entered the EPR to form a rubber nanoparticle composite ball. The microstructures of binary blends and ternary composites were characterized by SEM, TEM and AFM. And the relationship between the microstructure of the material and the change of the impact strength is studied in depth. The synergistic effects of PP/nano-CaCO₃/ grafted impact co-PP three-phase composite system at room temperature (23℃) and low temperature (-20℃) were successfully explained by energy absorption mechanism. The effects of temperature and particle concentration on the molecular chain motion of rubber were studied. The different phenomena of the three-phase system under room temperature and low temperature were explained and confirmed by DMA characterization. Through the study, under the guidance of the mechanism, a comprehensive performance of a good formula is obtained: composite material contains 30wt%PP, 30wt%nano-CaCO₃, 40wt% grafted impact co-PP. Compared with pure PP, the impact strength of composited increased by nearly 6 times, but the modulus…

Subjects/Keywords: Polypropylene; Mechanical properties; Nanocomposites (Materials); Calcium carbonate

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhang, Y. (2017). Study on the synergistic effect and toughening mechanisms of PP/CaCO₃ nano-composites modified with glycidyl methacrylate grafted EPR. (Thesis). Hong Kong University of Science and Technology. Retrieved from https://doi.org/10.14711/thesis-991012555458403412 ; http://repository.ust.hk/ir/bitstream/1783.1-90948/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zhang, Yiqing. “Study on the synergistic effect and toughening mechanisms of PP/CaCO₃ nano-composites modified with glycidyl methacrylate grafted EPR.” 2017. Thesis, Hong Kong University of Science and Technology. Accessed October 19, 2019. https://doi.org/10.14711/thesis-991012555458403412 ; http://repository.ust.hk/ir/bitstream/1783.1-90948/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zhang, Yiqing. “Study on the synergistic effect and toughening mechanisms of PP/CaCO₃ nano-composites modified with glycidyl methacrylate grafted EPR.” 2017. Web. 19 Oct 2019.

Vancouver:

Zhang Y. Study on the synergistic effect and toughening mechanisms of PP/CaCO₃ nano-composites modified with glycidyl methacrylate grafted EPR. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2017. [cited 2019 Oct 19]. Available from: https://doi.org/10.14711/thesis-991012555458403412 ; http://repository.ust.hk/ir/bitstream/1783.1-90948/1/th_redirect.html.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zhang Y. Study on the synergistic effect and toughening mechanisms of PP/CaCO₃ nano-composites modified with glycidyl methacrylate grafted EPR. [Thesis]. Hong Kong University of Science and Technology; 2017. Available from: https://doi.org/10.14711/thesis-991012555458403412 ; http://repository.ust.hk/ir/bitstream/1783.1-90948/1/th_redirect.html

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Université Catholique de Louvain

30. Drooghaag, Xavier. Reactive processing of polyolefins : a study on polymers and model compounds.

Degree: 2012, Université Catholique de Louvain

URL: http://hdl.handle.net/2078.1/118668

►

This dissertation discloses how N-bromosuccinimide mediates the grafting of maleic anhydride onto isotactic polypropylene, providing highly-grafted stereoblock polypropylene elastomers with preserved molecular weights. The grafts… (more)

Subjects/Keywords: Polypropylene; Maleic anhydride; Grafting; Model compound

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Drooghaag, X. (2012). Reactive processing of polyolefins : a study on polymers and model compounds. (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/118668

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Drooghaag, Xavier. “Reactive processing of polyolefins : a study on polymers and model compounds.” 2012. Thesis, Université Catholique de Louvain. Accessed October 19, 2019. http://hdl.handle.net/2078.1/118668.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Drooghaag, Xavier. “Reactive processing of polyolefins : a study on polymers and model compounds.” 2012. Web. 19 Oct 2019.

Vancouver:

Drooghaag X. Reactive processing of polyolefins : a study on polymers and model compounds. [Internet] [Thesis]. Université Catholique de Louvain; 2012. [cited 2019 Oct 19]. Available from: http://hdl.handle.net/2078.1/118668.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Drooghaag X. Reactive processing of polyolefins : a study on polymers and model compounds. [Thesis]. Université Catholique de Louvain; 2012. Available from: http://hdl.handle.net/2078.1/118668

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations