- 띠연신 방법에 의한 초고분자량 폴리에틸렌 겔의 최적 농도 결정 -최적 결정화 온도 결정-
- ㆍ 저자명
- 지병철,정길숙
- ㆍ 간행물명
- 韓國纖維工學會誌
- ㆍ 권/호정보
- 1997년|34권 7호|pp.420-427 (8 pages)
- ㆍ 발행정보
- 한국섬유공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
Ultrahigh molecular weight polyethylene (UHMWPE) gel films with different con centrations of 0.3, 0.5, 0.7 and 1.0 g/d$ell$ and different gelation/crystallization temperatures. In order to investigate drawing behaviors of UHMWPE gel films were drawn under various zone drawing conditions. Through a series of experiments, it turned out that the initial concentration and gelation/crystallization temperature of PE solution caused significant changes in draw ratio of UHMWPE gel film. That is, the one-step zone draw ratio of the gel film for initial concentration of 0.5 g/d$ell$ and gelation/crystallization temperature $25^{circ}C$ was at its maximum and gradually decreased at higher or lower concentration and gelation/crystallization temperature. Moreover this tendency was similar to the maximum draw ratio data. Based on the above results, it may be concluded that the optimum concentration and gelation/crystallization temperature of the initial UHMWPE solution can be determined directly by the zone draw ratio.