摘要
采用二甲基乙酰胺为溶剂,聚乙烯吡咯烷酮(PVPK90)为致孔性添加剂,研究了PVP的浓度对聚偏氟乙烯/聚醚砜(PVDF/PES)共混膜的收缩率、纯水通量、牛血清蛋白(BSA)截留率和膜结构的影响。在PVP含量为5%时,共混膜的收缩率最低,水通量取得极大值,截留率有一极小值。
DMAc was selected as solvent and Polyvinylpyrrolidone （PVP K90） was selected as pore forming additive, the influence of Polyvinylpyrrolidone concentration on the shrinkage ratio, the pure water flux, the retention to BSA and the membrane structure of Poly （vinylidene fluoride）/polyethersulfone Blend Membranes were investigated. The shrinkage ratio had the lowest value, the pure water flux of blend membranes had a maximum and the retention to BSA had a minimum when the concentration of PVP in the casting solution reached 5% （wt）.
出处
《化工新型材料》
CAS
CSCD
北大核心
2007年第4期63-65,共3页
New Chemical Materials
关键词
聚乙烯吡咯烷酮
聚偏氟乙烯
聚醚砜
收缩率
水通量
截留率
polyvinylpyrrolidone, poly（vinylidene fluoride）, polyethersulfone, shrinkage ratio, water flux, retention
