Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Effect of Zone-Drawing Conditions on the Structure and Physical Properties of Ultrahigh Molecular Weight Polyethylene Single Crystal Mats

Zone 연신 조건이 초고분자량 폴리에틸렌 단결정 매트의 구조와 물리적 성질에 미치는 영향

  • Kim, Sang-Yong (Dept. of Textile Eng., College of Eng., Seoul National Univ.) ;
  • Na, Sang-Hyun (Research Center, Sunkyung Industries) ;
  • Seoul, Chang (Dept. of Textile Eng., College of Eng., Chonbuk National Univ.)
  • 김상용 (서울대학교 공과대학 섬유공학과) ;
  • 나상현 (선경 인더스트리 기술연구소) ;
  • 설창 (전북대학교 공과대학 섬유공학과)
  • Published : 1988.10.01

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Abstract

Effect of zone-drawing conditions (draw temperature and draw ratio) on the structure and properties of the ultrahigh molecular weight polyethylene(UHMWPE) single crystal mats(SCM) was investigated. Mats were made by slow filtering and drying of single crystals crystallized in the dilute xylene solution of UHMWPE. These mats have platelike lamellar structure with mp 137$^{\circ}C$ and crystallinity 0.71. High draw ratio up to 40 was obtained by zone-drawing of the UHMWPE SCM near melting temperature. The birefringence, crystallinity, tensile modulus and breaking tensile stress of drawn mats appeared not to depend on the draw temperature but increased with increasing draw ratio. The maximum tensile modulus obtained in this experiment was 78 GPa.

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