Gas‐filled polymers. I. Void morphology of polyethylene

A. G. Kolbeck, Donald R Uhlmann, P. D. Calvert

Research output: Contribution to journalArticle

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Abstract

Morphologic studies of gas‐filled polyethylene show a characteristic void structure, with an interior region containing distinct gas bubbles surrounded by a surface layer of void‐free polymer. The voids in the bubbled region frequently show an elongated shape with the long dimension oriented parallel to the surface of the specimens. The gas–polymer interface within individual voids is composed of fibrils of the polymer extending into the interior of the void. Studies of the annealing temperatures required to obtain gas bubbles in the material and of the melting range of the ungasified polymer indicate that melting of the crystalline component of polyethylene is required for void formation.

Original languageEnglish (US)
Pages (from-to)679-694
Number of pages16
JournalJournal of Applied Polymer Science
Volume17
Issue number3
DOIs
Publication statusPublished - 1973
Externally publishedYes

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ASJC Scopus subject areas

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

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