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You searched for +publisher:"California State University – San Bernardino" +contributor:("Dr. Robert Phalen"). Showing records 1 – 2 of 2 total matches.

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California State University – San Bernardino

1. Steele, Kandace M. SURFACE AREA AS A METHOD FOR THE DETERMINATION OF GLOVE DEGRADATION.

Degree: MSin Earth and Environmental Sciences, Chemistry and Biochemistry, 2014, California State University – San Bernardino

Gloves are an important aspect of personal protective equipment. They protect workers from chemical hazards as well as reduce the risk of exposure to infectious material. Chemical resistant gloves are made from a variety of polymer materials such as plastic, rubber, and synthetic rubber, as not one material provides protection against all chemicals. One type of polymer material may adequately protect against a specific chemical, but may not adequately protect against another. Experiments, such as degradation tests, are used to determine which material is most effective for each chemical tested. Current methods of degradation ratings are based on weight change, which can be expensive. The method described in this study provides an inexpensive alternative to gravimetric analysis. This method uses surface area change as a way to determine the degradation of a polymer material. The percent change data were compared between the weight change and the surface area change. The regression line given was Y=0.4841x + 0.0187 and the R2 value was 0.9096. There is a strong correlation (Pearson r = 0.9519; p ≤ 0.05) between percent weight change and percent surface area change. The Change for surface area is about half that of the weight change, which indicates that the surface area method is more sensitive than the gravimetric determination. Using this information, a rating system was developed for determining the degradation of gloves using surface area. Advisors/Committee Members: Dr. Robert Phalen.

Subjects/Keywords: polymer materials; Environmental Sciences

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

APA (6th Edition):

Steele, K. M. (2014). SURFACE AREA AS A METHOD FOR THE DETERMINATION OF GLOVE DEGRADATION. (Thesis). California State University – San Bernardino. Retrieved from http://scholarworks.lib.csusb.edu/etd/105

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

Chicago Manual of Style (16th Edition):

Steele, Kandace M. “SURFACE AREA AS A METHOD FOR THE DETERMINATION OF GLOVE DEGRADATION.” 2014. Thesis, California State University – San Bernardino. Accessed November 13, 2019. http://scholarworks.lib.csusb.edu/etd/105.

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

MLA Handbook (7th Edition):

Steele, Kandace M. “SURFACE AREA AS A METHOD FOR THE DETERMINATION OF GLOVE DEGRADATION.” 2014. Web. 13 Nov 2019.

Vancouver:

Steele KM. SURFACE AREA AS A METHOD FOR THE DETERMINATION OF GLOVE DEGRADATION. [Internet] [Thesis]. California State University – San Bernardino; 2014. [cited 2019 Nov 13]. Available from: http://scholarworks.lib.csusb.edu/etd/105.

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

Council of Science Editors:

Steele KM. SURFACE AREA AS A METHOD FOR THE DETERMINATION OF GLOVE DEGRADATION. [Thesis]. California State University – San Bernardino; 2014. Available from: http://scholarworks.lib.csusb.edu/etd/105

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


California State University – San Bernardino

2. Pelham, Todd B. DEGRADATION OF PROTECTIVE GLOVE MATERIALS EXPOSED TO COMMERCIAL PRODUCTS: A COMPARATIVE STUDY OF TENSILE STRENGTH AND GRAVIMETRIC ANALYSES.

Degree: MSin Earth and Environmental Sciences, Geography and Environmental Studies, 2014, California State University – San Bernardino

ABSTRACT Current glove guides attempt to assist in recommending which type of glove is appropriate for handling chemicals; however, they include information on less than 1% of the 89 million chemical products available today. This study offers a solution by testing five durable polymer materials against 50 chemicals, using two rapid chemical degradation assessment techniques. The first technique involves gravimetric analysis of the weight change following constant immersion against the chemical mixture. The second method uses tensile strength to assess molecular changes in the polymer structure. This study is focused on addressing three issues of concern. First, this study examines if current degradation testing methods are adequate to determine chemical resistance against complex mixtures. Secondly, this study will be used to determine if current degradation information on pure chemicals is effective in predicting degradation of complex chemical mixtures, based on the major ingredient(s). Lastly, this study will start a chemical resistance index for complex mixed chemicals. The results of this study clearly show that glove recommendations of pure and mixed chemicals are frequently different. In more than 58.4% of the cases, the mixed chemical requires a different glove than that of its pure chemical components. Results also show that glove recommendations based solely on weight change and/or permeation results are missing important information on tensile test performance. There are several instances (15.2%) in which the initial glove recommendation would be changed to a lower recommendation rating if the results of a tensile test were included. Advisors/Committee Members: Dr. Robert Phalen.

Subjects/Keywords: Degradation; Polymer; Tensile; Gravametric; Environmental Chemistry; Environmental Health and Protection

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

APA (6th Edition):

Pelham, T. B. (2014). DEGRADATION OF PROTECTIVE GLOVE MATERIALS EXPOSED TO COMMERCIAL PRODUCTS: A COMPARATIVE STUDY OF TENSILE STRENGTH AND GRAVIMETRIC ANALYSES. (Thesis). California State University – San Bernardino. Retrieved from http://scholarworks.lib.csusb.edu/etd/107

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

Chicago Manual of Style (16th Edition):

Pelham, Todd B. “DEGRADATION OF PROTECTIVE GLOVE MATERIALS EXPOSED TO COMMERCIAL PRODUCTS: A COMPARATIVE STUDY OF TENSILE STRENGTH AND GRAVIMETRIC ANALYSES.” 2014. Thesis, California State University – San Bernardino. Accessed November 13, 2019. http://scholarworks.lib.csusb.edu/etd/107.

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

MLA Handbook (7th Edition):

Pelham, Todd B. “DEGRADATION OF PROTECTIVE GLOVE MATERIALS EXPOSED TO COMMERCIAL PRODUCTS: A COMPARATIVE STUDY OF TENSILE STRENGTH AND GRAVIMETRIC ANALYSES.” 2014. Web. 13 Nov 2019.

Vancouver:

Pelham TB. DEGRADATION OF PROTECTIVE GLOVE MATERIALS EXPOSED TO COMMERCIAL PRODUCTS: A COMPARATIVE STUDY OF TENSILE STRENGTH AND GRAVIMETRIC ANALYSES. [Internet] [Thesis]. California State University – San Bernardino; 2014. [cited 2019 Nov 13]. Available from: http://scholarworks.lib.csusb.edu/etd/107.

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

Council of Science Editors:

Pelham TB. DEGRADATION OF PROTECTIVE GLOVE MATERIALS EXPOSED TO COMMERCIAL PRODUCTS: A COMPARATIVE STUDY OF TENSILE STRENGTH AND GRAVIMETRIC ANALYSES. [Thesis]. California State University – San Bernardino; 2014. Available from: http://scholarworks.lib.csusb.edu/etd/107

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

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