摘要
研究了聚丙烯腈 /二醋酸纤维素 (PAN/CA)共混超滤膜的性能与聚合物共混比、聚合物质量分数等的关系 .结果表明 ,加有氯化锂 (LiCl)的二甲基乙酰胺 (DMAC)是PAN/CA共混体系的良溶剂 .当聚合物的质量分数为 14 % ,PAN/CA共混比为 5 0 / 5 0时 ,所制得的共混超滤膜的性能较好 .对共混超滤膜进行水解改性的实验发现 :膜的截留率上升 ,水通量下降 .用酱油、药酒为料液的超滤实验表明 :共混膜和水解改性膜的耐污染性能优于聚丙烯腈 (PAN)、聚砜 (PS)和磺化聚砜 (SPS)
The blend ultrafiltration membranes were prepared by using polyacrylonitrile and cellulose acetate.The effects of polymer mass fraction and hydrolyzed conditions were discussed.The blend and hydrolyzed modified membranes were investigated in ultrafiltration experiments with soy,medical liquor to assess their resistance ot fouling.The membranes show high antifouling characteristics compared to PS,PAN and SPS membranes.
出处
《膜科学与技术》
CAS
CSCD
北大核心
2002年第2期10-12,共3页
Membrane Science and Technology
基金
中科院重大特别资助项目 (KZ95 1-A1- 2 0 1- 0 2和KZ95T - 0 5 )
