改性壳聚糖离子交换膜制备研究进展

Research Progress of Preparation of Ion Exchange Membrane Using Modified Chitosan

离子交换膜广泛应用于海水淡化、环境保护、化工生产和食品加工等领域,发挥着越来越重要的作用。壳聚糖具有良好的生物相容性、可降解性、无毒和化学及热稳定性,逐渐成为离子交换膜材料的研究热点。为克服其溶解性差等缺点,增加其应用范围,通常对壳聚糖进行改性,拓宽其物理化学性能。综述并分析了近年来基于改性壳聚糖用于阳离子交换膜、阴离子交换膜和单价选择性离子交换膜的研究状况,展望了改性壳聚糖在离子交换膜领域中的发展趋势。

Ion exchange membrane is widely used in seawater desalination,environmental protection,chemical production,food processing and other fields,which plays an increasingly important role in performance.Chitosan has excellent biocompatibility,biodegradability,non-toxicity and chemical and thermal stability,and has gradually become a research hotspot in ion exchange membrane materials.In order to overcome its shortcomings such as solubility and increase its application range,chitosan is usually modified,which broaden its physical and chemical properties.The research situation of cation exchange membrane,an anion-exchange membrane and composite ion-exchange membrane based on modified chitosan were reviewed and discussed.The development trend of modified chitosan in ion exchange membrane was prospected.