聚乙烯中空纤维离子交换膜的制备及应用进展

摘要

In the paper, preparations of polyethylene (PE) hollow fiber ion-exchange membranes were described. Generally, the preparations consist of three steps: First, free radicals were produced on the surface of PE hollow fiber membranes using γ-ray or electron beam. Secondly, pre -functional groups were introduced when monomer reacts with free radicals. Finally, PE hollow fiber ion-exchange membranes were produced when reagents react with pre-functional groups, In addition, applications of membranes in the protein separation, metal ion removal and enzyme immobilization are also described, which was helpful to research on preparations of hollow fiber ion-exchange membranes for other materials.%介绍了聚乙烯中空纤维阴离子交换膜、阳离子交换膜以及两性离子交换膜的制备方法和制备过程.首先采用光束或γ射线照射聚乙烯中空纤维膜表面产生自由基,然后改性单体与自由基反应引入预功能化基团,最后反应试剂与预功能基团进行化学反应制得中空纤维离子交换膜.同时,对制得的中空纤维离子交换膜在蛋白质分离、金属离子去除及酶固定反应方面的应用进行总结评论.这对聚乙烯中空纤维离子交换膜和相似材料中空纤维离子交换膜的研究工作将起到一定的启示作用.