A pressure-based method of generating microcellular polymers using supercritical carbon dioxide as foaming agent

Posted on:1994-07-19

Degree:Ph.D

Type:Dissertation

University:University of Pittsburgh

Candidate:Goel, Satish Kumar

Full Text:PDF

GTID:1471390014492746

Subject:Engineering

Abstract/Summary:

constant temperature process of generating microcellular polymeric foams has been studied which employs supercritical carbon dioxide as the foaming agent. The process is based on phase separation in a solution of poly (methyl methacrylate) (PMMA) and supercritical CO;Typically, the process leads to a microcellular core structure encased by non-porous skin. Average cell sizes (0.5 to 15...

Keywords/Search Tags:

Microcellular, Supercritical, Process

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