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

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.