制膜条件对聚偏氟乙烯/酚酞型聚醚砜共混膜性质的影响  

Effect of Preparing Conditions on the Properties of PVDF/PES-C Blend Membrane

作　　者：朱士龙[1] 张俊生[1] 李勇[1] 武利顺[2] 段友构[1] 

机构地区：[1]吉首大学化学化工学院,湖南吉首416000 [2]东华大学材料科学与工程学院,上海200051

出　　处：《吉首大学学报（自然科学版）》2010年第4期98-102,共5页Journal of Jishou University(Natural Sciences Edition)

基　　金：湖南省科技计划项目(2006GK4012)

摘　　要：采用酚酞型聚醚砜(PES-C)为共混材料,以二甲基乙酰胺(DMAc)为溶剂,加入有机添加剂(PVP K30和PVPK90)和无机添加剂(无水LiCl)制备了聚偏氟乙烯/酚酞型聚醚砜共混平板膜.改变预蒸发时间和制膜液温度,考察了共混膜的收缩率和水通量.结果表明:在PVP质量分数为5%时,共混膜的收缩率最低,水通量达到最大值;共混膜的水通量随着预蒸发时间、凝固浴温度、压力的变化而发生变化.Flat sheet PVDF/PES-C blend membrane is prepared by using phenolphthalein polyether sulfone(PES-C) as blending material,N,N-dimethyl acetamide(DMAc) as solvent,PVP K30,PVP K90 or LiCl as additives.Under the condition of different pre-evaporation time and coagulation temperature,the membrane is characterized by shrinkage ratio and pure water flux.The shrinkage ratio has a minimum and the water flux has a maximum when the content of PVP reaches 5%.The water flux changes along with the variety of pre-evaporati...

关 键 词：共混膜 聚偏氟乙烯 酚酞型聚醚砜 收缩率 水通量 

分 类 号：TQ320.721[化学工程—合成树脂塑料工业]