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Citation: Zu Yanbing, Cha Chuansin. Improvement of Hydtophilicity of Nafion Membrane Surface by Modification with Perfluorinated Sutfactants[J]. Chinese Journal of Applied Chemistry, ;1995, 12(2): 33-36. shu

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

Zu Yanbing ,
Cha Chuansin

Department of Chemistry, Wuhan University, Wuhan 430072

Received Date: 24 June 1994
Revised Date: 30 September 1994

The surface of Nafion membrane can be rendered more hydrophilic by modification with perfluorinated surfactants. A surfactant of sulfonic acid type (FC-99) was found to be most suitable for membrane modification. The swelling of the membrane is not serious after treatment, while the advancing contact angle between water and the membrane can be signi-ficantly reduced. Bubble effect ("zero-gap" effect) was diminished markedly in experimental membrane electrolysis cell using modified Nafion membrane.
- Nafion membrane,
- perfluorinated surfactant,
- contact angle,
- bubble effect
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