热致相分离聚丙烯中空纤维膜的结构与性能  

Structure and performance of hollow fiber polypropylene membrane via thermally-induced phase separation

作　　者：李凭力[1] 常贺英[1] 侯文贵[1] 杨振生[1] 王世昌[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《天津城市建设学院学报》2003年第2期90-93,共4页Journal of Tianjin Institute of Urban Construction

摘　　要：研究了等规聚丙烯 (iPP)熔融指数、聚丙烯初始浓度和冷却速率等因素对热致相分离聚丙烯中空纤维膜性能和结构的影响 .随iPP熔融指数降低、聚丙烯初始浓度提高以及冷却速率提高 ,聚丙烯中空纤维膜平均孔径减小 ,通量降低 .The effects of melt index of isotactic polypropylene(iPP), initial concentration and cooling rate of iPP on the structure and performance of hollow fiber polypropylene membrane via thermally induced phase separation were investigated. With the initial iPP concentration and cooling rate increasing and melt index reducing, the mean pore size and flux of hollow fiber polypropylene membrane decrease.

关 键 词：热致相分离 聚丙烯 中空纤维膜 微孔膜 

分 类 号：TQ342.62[化学工程—化纤工业]