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Title Multilayered membranes for modified atmosphere packaging
Publication Date
Date Accessioned
Degree PhD
Discipline/Department Chemical Engineering
Degree Level doctoral
University/Publisher University of Texas – Austin
Abstract This dissertation discusses, in brief, the production and transport property characterization of films made from the extrusion and biaxial stretching of [beta] nucleated isotactic polypropylene and the extrusion of PEBAX block copolymers. Multilayered films for modified atmosphere packaging applications were also produced by coextrusion and biaxial stretching of these two materials and similarly characterized. Current membranes for packaging applications are generally produced by coating a porous support with a polymeric solution to deposit an active layer for separation. The goal of this project is to displace membranes produced by solvent-based processes, which are environmentally hazardous and thus costly, with equivalent or superior materials produced using melt extrusion.
Subjects/Keywords Polymers; Melt extrusion; Microporous membranes; Modified atmosphere packaging
Contributors Paul, Donald R. (advisor); Freeman, B. D. (Benny D.) (advisor)
Language en
Country of Publication us
Record ID handle:2152/21871
Repository texas
Date Retrieved
Date Indexed 2019-09-12
Grantor The University of Texas at Austin
Note [] text; [department] Chemical Engineering;

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