한국섬유공학회:학술대회논문집 (Proceedings of the Korean Fiber Society Conference)
- 한국섬유공학회 1996년도 추계 학술발표회
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- Pages.465-467
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- 1996
열가소성 폴리우레탄의 합성 및 성질
Preparation and Properties of Thermoplastic Polyurethane Copolymers
- 발행 : 1996.10.01
초록
A series of thermoplastic polyurethane copolymers were prepared from polypropyleneglycol(PPG, MW 3000), 1,4-butanediol, Isophorone diisocyanate(IPDI) and dibutyltin dilaurate(BBT) as catalyst. Studies have been made on the effects of molar ratio of isocyanate /polyol/chain extender on the properties such as tensile and thermal properties. By varying the ration of hard to soft segments, TPU ranging from soft elastomeric polymer to relatively hard elastoplastics and be obtained. The storage modulus and glass transition temperature of TPU increased with increasing the hard segment content.
키워드