一种光固化制备阴离子交换膜的方法

Method for making anion exchange membrane through photocuring

Abstract

The invention provides a method for making an anion exchange membrane through photocuring. The method comprises the following steps: coating a substrate with a slurry containing a polymerizable monomer and a photoinitiator, wherein the polymerizable monomer contains a quaternary ammonium salt group or a functional group which can introduce the quaternary ammonium salt; initiating the polymerization and crosslinking of alkenyl function groups on the monomer in the initiating slurry; and washing, and post-processing to obtain the quaternary ammonium salt type anion exchange membrane with a physical conformation. Compared with present making methods of the anion exchange membrane through a hot pressing polymerization process, the method has the advantages of fast polymerization speed, low polymerization temperature, fast curing time and small pollution, and the obtained anion exchange membrane has the advantages of uniformity, stability, good mechanical properties and good chemical resistance, so the anion exchange membrane has a good application prospect in the fields of electrodialysis water treatment, pervaporation, gas separation, new energy batteries, the atomic energy industry and analysis, catalytic synthesis and the chlorine alkali industry.
本发明提供了一种光固化制备阴离子交换膜的方法。该方法首先将包含可聚合单体与光引发剂的浆料涂布在基体上,该可聚合单体中包含季铵盐基团或者可引入季铵盐基团的官能团;然后以紫外光源为引发因子,引发浆料中单体上的烯基官能团聚合和交联;最后经洗涤和后处理,得到体型结构的季铵盐型阴离子交换膜。与现有的热聚合法制备阴离子交换膜的方法相比,该方法聚合速度快、聚合温度低、固化时间短、污染小,所制得的阴离子交换膜均一稳定,具有良好的力学性能和耐化学性能,因此在电渗析水处理、渗透汽化、气体分离、新能源电池、原子能工业及分析、催化合成和氯碱工业中等多种领域具有良好的应用前景。

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    Publication numberPublication dateAssigneeTitle
    CN-105617893-AJune 01, 2016杭州埃尔环保科技有限公司Method for preparing ion exchange membrane