超薄皮层反渗透复合膜制备技术的研究进展  

Progress in preparation of ultra-thin composite reverse osmosis membrane

作　　者：席丹 曹从军 齐萨仁 蔡勇[2] 杨国勇 宋潇潇 XI Dan;CAO Congjun;QI Saren;CAI Yong;YANG Guoyong;SONG Xiaoxiao(Faculty of Printing,Packaging Engineering and Digital Media Technology,Xi′an University of Technology,Xi′an 710048,Shaanxi,China;The Suzhou Institute of Nano-tech and Nano-bionics(SINANO),Suzhou 215123,Jiangsu,China;AROMEM Pte Ltd.,Suzhou 215126,Jiangsu,China;Center for Membrane and Water Science&Technology,Zhejiang University of Technology,Hangzhou 310014,Zhejiang,China)

机构地区：[1]西安理工大学印刷包装与数字媒体学院,陕西西安710048 [2]中国科学院苏州纳米技术与纳米仿生研究所,江苏苏州215123 [3]苏州苏瑞膜纳米科技有限公司,江苏苏州215126 [4]浙江工业大学膜分离与水科学技术中心,浙江杭州310014

出　　处：《化工进展》2020年第10期4073-4080,共8页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金青年项目(21706231);国家重点研发计划(2017YFC0403903);陕西省重点科研基地项目(2019HBGC-55)。

摘　　要：聚酰胺皮层的物化性质是决定反渗透复合膜(TFC-RO膜)物质筛分和水透过效率的关键性因素。近年来,基于超薄皮层(通常<50nm)的高性能复合膜研究取得了重要的进展。本文总结并分析了超薄皮层反渗透复合膜的研究进展,如低单体浓度控制技术、分子层层自组装(mLBL)、静电打印技术、界面优化技术及新型纳米材料技术的成膜机理及特性,对比了各项制备技术的优缺点。总体来说,超薄皮层反渗透复合膜的研究为精细设计聚酰胺皮层的物化结构,进一步设计更高效率的反渗透复合膜提供了重要思路,但超薄皮层与聚酰胺层微纳结构之间的相互联系以及超薄皮层反渗透复合膜长期运行的稳定性仍需进一步探索。The physiochemical properties of polyamide skin layer determine the separation performance and water permeability properties of thin film composite reverse osmosis(TFC-RO)membrane.Recently,significant progresses have been made on TFC-RO membranes with an ultra-thin(typically<50nm)skin layer.This work summarizes and analyzes the recent key advances in the formation mechanism and membrane characteristics of the ultra-thin TFC-RO membranes,such as low monomer concentration technique,molecular layer-by-layer assembly technique,electrospray facilitated printing technique,interface optimization technique and nano enhanced technique,and compares the advantages and disadvantages of each preparation technique.In general,the researches on ultra-thin TFC-RO membranes provide important approaches to fabricate more finely-structured polyamide skin layers and therefore to design TFC-RO membranes with enhanced performance.However,the interactions between the ultrathin skin layer and the micro-and nano-scale structures of the polyamide,and the long term operational stability of ultra-thin TFC-RO membrane still demand further research.

关 键 词：分离 膜 聚合物 超薄皮层 水处理 

分 类 号：TQ051.893[化学工程]