浸渍-界面聚合法制备荷电镶嵌膜-高校化学工程学报.PDF

第22 卷第6 期 高 校 化 学 工 程 学 报 No.6 Vol.22 2008 年12 月 Journal of Chemical Engineering of Chinese Universities Dec. 2008 文章编号：1003-9015(2008)06-1020-06 浸渍-界面聚合法制备荷电镶嵌膜 张景亚, 张浩勤, 谭翎燕, 乔欢欢, 刘金盾 (郑州大学 化学工程学院，河南 郑州 450001) 摘 要：以聚醚砜为基膜，以荷正电的高分子材料聚环氧氯丙烷胺及荷负电的 2,5-二胺基苯磺酸混合水溶液(无机相) 与三酰氯的正己烷溶液(有机相)通过浸渍-界面聚合反应，合成了一种新型的荷电镶嵌膜。实验考察了荷电剂浓度、单 体的浓度、界面聚合反应时间和热处理温度等因素对膜性能的影响。研究结果表明，优化工艺下所制备的荷电镶嵌膜 具有良好的性能。在 0.4 MPa 下，膜对无机盐的截留率均低于 40% ，对 PEG1000 的截留率则达到了 94.02% ，该膜的 纯水通量为 11.1 L⋅m−2 ⋅h− 1 ；能截留低分子量有机物而透过盐，表明该膜可以用于有机物与盐混合溶液的分离。 关键词：荷电镶嵌膜；界面聚合；浸渍法；聚环氧氯丙烷胺；复合膜 中图分类号：TB383 ；TQ425.236 ；TQ028.8 文献标识码：A Preparation of the Composite Charged Mosaic Membrane by Coating- Interfacial Polymerization Method ZHANG Jing-ya, ZHANG Hao-qin, TAN Ling-yan, QIAO Huan-huan, LIU Jin-dun (School of Chemical Engineering , Zhengzhou University, Zhengzhou 450001, China) Abstract: A new type of charged mosaic membrane (CMM) was prepared by using the coating-interfacial polymerization techniques with using aqueous solution of poly(epichlorohydrin-amine) (PECH-amine) and 2,5-diaminobenzene sulphonic acid (DIA) mixture as inorganic phase and the solution of trimesoyl chloride (TMC) solved in hexane as the organic phase to deposit a thin film composite (TFC) onto a PES ultrafiltration membrane which was used as the porous support. The influences of several factors, such as the charged agents concentrations, monomer concentration, interfacial polymerization (IP) time and heat treatment temperature, on the performance of the prepared composite membrane were studied. The results show that, under th