高温型PVDF/PSSA复合膜的质子传导性能

材料研究学报

2012, Vol. 26

Issue (4): 355-360

研究论文

本期目录 | 过刊浏览

高温型PVDF/PSSA复合膜的质子传导性能

马宁, 蔡芳昌, 殷浩, 张红星, 蒋涛

湖北大学材料科学与工程学院武汉 430062

Proton Exchange Properties of PVDF/PSSA Composite Membranes for High Temperature

MA Ning, CAI Fangchang, YIN Hao, ZHANG Hongxing, JIANG Tao

Faculty of Materials Science and Engineering, Hubei University, Wuhan 430062

引用本文:

马宁蔡芳昌殷浩张红星蒋涛. 高温型PVDF/PSSA复合膜的质子传导性能[J]. 材料研究学报, 2012, 26(4): 355-360.
, , , , , . Proton Exchange Properties of PVDF/PSSA Composite Membranes for High Temperature[J]. Chin J Mater Res, 2012, 26(4): 355-360.

全文: PDF(989 KB)

摘要: 通过自由基加聚反应制备了聚偏氟乙烯(PVDF)/聚苯乙烯磺酸(PSSA)复合膜, 通过SEM、EDX、电化学阻抗谱(EIS)和TG等方法表征复合膜的微结构、电化学及尺寸稳定性和力学性能等性能与反应时间的关系。结果表明, 随着反应时间的延长，PVDF/PSSA复合膜的含水率、质子传导率逐渐增大。反应时间为8 h的复合膜, 其含水率在常温下达到4.4%, 质子传导率达到0.375 S/cm, 抗拉强度为32.1 MPa。这表明, 在采用自由基加聚反应制备的复合膜中形成了稳固的半互穿网络(SIPN)结构, 在保持一定的热稳定性能、尺寸稳定性以及力学性能的条件下, 其质子传导性能明显改善。

关键词 ：聚偏氟乙烯, 聚苯乙烯磺酸, 复合膜, 半互穿网络

Abstract：Poly (styrenesuflonic) acid (PSSA) and poly (vinylidene fluoride) (PVDF) composite membranes have been prepared by free radical polymerization. By reading the relationship of the reaction–time and the characteristics of microstructural, electrochemistry and physical properties of PVDF/PSSA Composite Membranes by SEM, EDX, EIS and TG, it is found that both the water content of PVDF/PSSA membrane and proton conductivity did increase if the hot–pressing time was extended. When the hot–pressing reactive time approached the optimum values at 8 hour, the water content reached 4.4% at the room temperature, the proton conductivity reached the maximum (0.375 S/cm) and the resisting strength reached to 32.1 MPa, which shows that the conductivity of the SIPN composite membrane can be improved clearly while holding the better mechanical and thermo property by free radical polymerization.

Key words： PVDF Poly(styrenesuflonic) acid composite membrane SIPN

收稿日期: 2012-01-09

ZTFLH:

O646

基金资助:

国家高技术研究发展计划(863计划)2009AA034400资助项目。

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