荷电镶嵌膜的制备与表征  

Preparation and Characterization of the Charge-Mosaic Membrane

作　　者：张浩勤[1] 陈卫航[1] 范国栋[1] 刘金盾[1] 杨艳红[1] 

机构地区：[1]郑州大学化工学院,郑州450002

出　　处：《华东理工大学学报（自然科学版）》2005年第2期242-244,267,共4页Journal of East China University of Science and Technology

基　　金：河南省高校杰出科研人才创新工程资助项目(2001KYCX006)

摘　　要：以聚醚砜中空纤维超滤膜为基膜,2,5-二胺基苯磺酸、聚乙烯亚胺、均苯三甲酰氯为界面聚合单体,4-氯甲基苯酰氯和三甲胺为化学修正剂,正十二烷和水分别为两相溶剂,通过界面聚合方法制备了能够有效传递电解质而截留低分子量有机物的荷电镶嵌膜,研究了无机盐-水和有机物-水二元混合体系的分离性能和无机盐-有机物-水三元混合体系中无机盐和有机物的分离因子。结果表明:在三元混合物分离体系中,随着盐浓度的增加,膜的分离因子有所降低;盐与有机物之间的交互作用会对分离因子产生一定的影响。The composite charge-mosaic membrane (CMM) was prepared by interfacial polymerization (IP). 2,5-Diaminobenzene sulphonic acid, polyethylenimine and trimesoyl chloride were selected as the monomers of IP reaction. 4-(Chloromethyl) benzoyl chloride and trimethyl amine were chosen as the chemical modification agents. The charge-mosaic membrane can be permeable to salts but meanwhile not to non-electrolytes with low-molecular-weight. Based on the experimental separation for salts-water and organics-water systems, the separation factors of salts-organics-water mixtures were investigated. The results show that the separation factors will decrease with increasing concentration of salt and that the interaction between different components of mixture will effectively influence the separation factors.

关 键 词：界面聚合 荷电镶嵌膜 表征 分离因子 

分 类 号：TQ028.8[化学工程] O648.22[理学—物理化学]