摘要
采用冻胶纺丝法制备超高分子质量聚丙烯纤维(UHMWPP),并在不同的拉伸温度下对其进行拉伸。研究了在相同的拉伸倍率下,拉伸温度对UHMWPP纤维结晶性能、热性能的影响。结果表明:UHMWPP纤维结晶晶体间存在很多间隙;纤维的结晶性能和耐热性能都随拉伸温度的提高而提高。
A novel polypropylene （PP） fiber was prepared by using gel spinning from dilute solutions of ultrahigh molecular weight isotactic polypropylene （i-UHMWPP）, and subsequently drawing at various temperatures. Effects of drawing temperature on the crystallizing property, thermal property of the resulted fibers were investigated at fixed draw ratio. Results showed that many gaps exist among the UHMWPP crystals; with the increasing Of drawing temperature, crystallization and heat resistance properties of the fibers obtained were dramatically improved.
出处
《合成技术及应用》
2008年第4期5-7,共3页
Synthetic Technology & Application
基金
上海市重点学科资助
项目资助号B603
关键词
冻胶纺
超高分子质量聚丙烯纤维
结晶性能
gel-spun
ultra high molecular weight polypropylene fiber
crystallizing property
