磺化聚酰亚胺/多孔聚四氟乙烯复合膜的制备与性能研究  

Synthesis and property of sulfonated polyimide/porous polytetrafluoroethylene composite membrane

作　　者：陈咨丰 谢一凡[1] 郭晓霞[1] 房建华[1] 

机构地区：[1]上海交通大学化学化工学院,上海200240

出　　处：《化工新型材料》2016年第3期92-94,共3页New Chemical Materials

基　　金：上海市自然科学基金资助项目(13ZR1420200)

摘　　要：采用表面活性剂对聚四氟乙烯多孔膜进行了表面亲水处理,然后与一种磺化聚酰亚胺膜进行复合,成功地制得了磺化聚酰亚胺/多孔聚四氟乙烯复合膜。该复合膜比相应的未复合的磺化聚酰亚胺膜具有更高的力学强度。与相同离子交换容量(IEC)的磺化聚酰亚胺共聚物膜相比,该复合膜具有相近的质子电导率,但其溶胀率和吸水率更低,显示出更好的综合性能。The porous polytetrafluoroethylene membrane was treated with a surfactant to yield hydrophilic surface and subsequently was filled with a sulfonated polyimide solution in m-cresol to form a composite membrane.The resulting composite membrane exhibited higher mechanical strength than the pristine sulfonated polyimide membrane.In comparison with sulfonated copolyimide membrane with similar ion exchange capacity,the composite membrane exhibited similar proton conductivity but significantly lower swelling ratio and water uptake indicating better comprehensive performances of the composite membnrane.

关 键 词：质子交换膜 复合膜 聚四氟乙烯多孔膜 磺化聚酰亚胺 

分 类 号：TB383.2[一般工业技术—材料科学与工程]