用全氟表面活性剂改善Nafion膜表面的亲水性  

Improvement of Hydtophilicity of Nafion Membrane Surface by Modification with Perfluorinated Sutfactants

作　　者：祖延兵[1] 查全性[1] 

机构地区：[1]武汉大学化学系

出　　处：《应用化学》1995年第2期33-36,共4页Chinese Journal of Applied Chemistry

基　　金：国家教委博士点基金资助项目

摘　　要：在Ｎａｆｉｏｎ膜表层引入全氟表面活性剂可改善膜表面的亲水性，其中全氟磺酸型表面活性剂ＦＣ－９９效果最好。经后者处理的Ｎａｆｉｏｎ膜几乎不溶胀，而能使水溶液在膜上的接触角显著减小，并改善“气泡效应（零间距效应）”。The surface of Nafion membrane can be rendered more hydrophilic by modificationwith perfluorinated surfactants,A surfactant of sulfonic acid type(FC-99) was found to bemost suitable for membrane modification. The swelling of the membrane is not serious aftertreatment,while the advancing contact angle between water and the membrane can be signi-ficantly reduced. Bubble effect(“zero-gap”effect)was diminished markedly in experimentalmembrane electrolysis cell using modified Nafion membrane.

关 键 词：表面活性剂 接触角 亲水性 氟 离子交换膜 

分 类 号：TQ028.8[化学工程] O647.2[理学—物理化学]