间苯二甲胺为单体制备耐氯复合纳滤膜及其性能  

Preparation and Performance of a Chlorine-Tolerant Composite Nanofiltration Membrane with mXDA as Amine Monomer

作　　者：刘逸 林波 张家恒[1,2] 李俊俊 高从堦 潘巧明 LIU Yi;LIN Bo;ZHANG Jiaheng;LI Junjun;GAO Congjie;PAN Qiaoming(The Second Institute of Oceanography of the State Oceanic Administration,310012;Bluestar (Hangzhou) Membrane Industry Co.,311106;Center for Membrane Separation and Water Science & Technology, Ocean College, Zhejiang University of Technology,310014: Hangzhou, China)

机构地区：[1]国家海洋局第二海洋研究所,310012 [2]蓝星(杭州)膜工业有限公司,311106 [3]浙江工业大学海洋学院膜分离与水科学与技术中心,浙江杭州310014

出　　处：《水处理技术》2019年第1期33-37,共5页Technology of Water Treatment

基　　金：国家重点研发计划资助项目(2017YFC0403702)

摘　　要：以间苯二甲胺(mXDA)为胺类单体与均苯三甲酰氯(TMC)反应,制备了1种耐氯复合纳滤膜,对其表面组成、结构进行了表征,并通过改变缓冲体系、调节界面反应条件,对该纳滤膜的性能进行优化。结果表明,界面聚合反应后在底膜上成功制备了聚酰胺层。在水相单体m XDA、油相单体TMC的质量分数分别为0.1%、0.075%,反应时间30 s、热处理时间10 min的优化条件下,复合纳滤膜对Na_2SO_4的截留率达94.5%,通量56.4 L/(m^2·h)。而且该膜在活性氯的质量浓度为5 g/L时浸泡1 h仍能保持完整的功能层结构,在截留率基本保持不变的情况下水通量提升33%。A chlorine-tolerant nanofiltration membrane was successfully prepared by interfacial polymerization of mXDA with TMC. To optimize the performance of the nanofiltration membrane, the surface composition and structure were characterized, the buffer system was changed and the conditions of interfacial reaction were adjusted. The results showed that the polyamide layer was successfully prepared on the substrate membrane. Under the optimal conditions of mass fraction of aqueous phase monomer of m-XDA and oil phase monomer of TMC was 0.1% and 0.075% respectively, reaction time was 30 s and thermal treatment time was 10 min, the rejection of Na2SO4 reached 94.5% by composite nanofiltration membrane and the flux was 56.4 L/(m^2·h). The surface composition and structure of the nanofiltration membrane did not change significantly after the chlorine soaking for 1 h, when mass concentration of active chlorine was 5 g/L, the water flux increased by 33% with rejection unchanged.

关 键 词：纳滤膜 耐氯 间苯二甲胺 均苯三甲酰氯 

分 类 号：TQ028.8[化学工程]