超高分子质量聚丙烯冻胶纤维的结晶性能研究  

The study on crystallization and of gel spun UHMWPP fiber

作　　者：司小娟[1] 陈建军[1] 程丹丹[1] Jeong Cheol Kim 王依民[3] 

机构地区：[1]东华大学材料科学与工程学院,上海201620 [2]韩国工业研究院 [3]纤维材料改性国家重点实验室,上海201620

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

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.

关 键 词：冻胶纺 超高分子质量聚丙烯纤维 结晶性能 

分 类 号：TQ342.62[化学工程—化纤工业]