阻酸型阴离子交换膜制备研究进展  

Research Progress of Preparation for Acid Block Anion Exchange Membrane

作　　者：王勋亮 王文华 姜天翔 王静 汪锰[2] Wang Xunliang;Wang Wenhua;Jiang Tianxiang;Wang Jing;Wang Meng(Tianjin Institute of Seawater Desalination and Multipurpose Utilization,State Oceanic Administration,Tianjin 300192,China;College of Chemistry and Chemical Engineering,Ocean University of China,Qingdao 266100,China)

机构地区：[1]国家海洋局天津海水淡化与综合利用研究所,天津300192 [2]中国海洋大学化学化工学院,山东青岛266100

出　　处：《净水技术》2018年第9期48-53,72,共7页Water Purification Technology

基　　金：中央级公益性科研院所基本科研业务费专项资金项目(K-JBYWF-2018-QR02;K-JBYWF-2015-T10;KJBYWF-2016-T8);海洋公益性行业科研专项项目(201405035)

摘　　要：介绍当前制备阻酸型阴离子交换膜的最新研究进展,基于氢离子过膜独特的传质机理(Vehicle和Grotthuss机制),着重从提高阴离子交换膜致密度及其含水率两个方面详细阐述了提高其阻酸性能的方法。其中,提高阴膜致密度主要包括在膜上形成高密度交联层及在膜基体形成非荷电区域;降低阴膜含水率主要包括引入疏水基团及引入吡啶等弱碱基团以降低水合作用。最后指出,明晰反应机理、拓展制备新技术是今后提升阴膜阻酸性能的发展方向。The latest research progress on preparation methods of acid block anion exchange membrane is summarized. Preparation methods are elaborated in detail from two aspects, including the enhancement of crosslinking degree and reduction of water uptake according to the unique vehicle and grotthuss mechanism. In addition, the methods of improving density degree include the formation of dense crosslinking layers on membrane surface and the non-charged area in film matrix. The methods of reducing water uptake include the introduction of hydrophobie groups and pyridine to weaken hydration. Finally, it is pointed out that clearing reaction mechanisms and developing new preparation methods can be the main ways to improve the acid block ability in future.

关 键 词：废酸 阻酸型阴离子交换膜 氢离子泄露 疏水基团 电渗析 

分 类 号：TB383[一般工业技术—材料科学与工程]