Ultra-drawing behaviour of ultra-high-molecular-weight polyethylene in the gel-like spherulite press method

Toshihiko Ohta, Takao Wachi, Toshiki Nagai, Akihiko Takada, Yukiko Ikeda, Ohtsubo Takashi, Akiyoshi Kawaguchi

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12 Citations (Scopus)


Ultra-drawing behaviour in the gel-like spherulite press method has been investigated using two kinds of gel-like spherulites formed from 1.0 and 2.0 wt% solutions of ultra-high-molecular-weight polyethylene. The influence of chain entanglement density in a solution on the increase in strength and modulus with ultra-drawing is discussed. An equation predicting the maximum draw ratio from the drawing stress of the predrawn specimens is presented. It is concluded that the influence on the ultra-drawing behaviour of the spherulite size and lack of chain connection between spherulites can be ignored in this processing method.

Original languageEnglish
Pages (from-to)4863-4867
Number of pages5
Issue number23
Publication statusPublished - 1993


All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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