SPEEK/PVP质子交换膜的制备研究

膜科学与技术 , 2014, 34(4): 71-76.

SPEEK/PVP质子交换膜的制备研究

刘才林 ^1, , 马春成 ^2, , 何年 ^3, , 梁青松 ^4,

1.西南科技大学四川省非金属复合与功能材料重点实验室——省部共建国家重点实验室培育基地,绵阳,621010

2.西南科技大学四川省非金属复合与功能材料重点实验室——省部共建国家重点实验室培育基地,绵阳,621010

3.四川三三科技有限责任公司,绵阳,621000

4.四川三三科技有限责任公司,绵阳,621000

基金项目: 四川省非金属复合与功能材料重点实验室开放基金资助(11zxfk26)

关键词：磺化聚醚醚酮膜 , 质子电导率 , SPEEK/PVP膜 , 共混作用机理

Studies on the preparation of SPEEK/PVP composite proton exchange membrane

Keywords： sulfonated poly(ether ether ketone) , proton conductivity , SPEEK/PVP membrane , composite mechanism

采用氯磺酸(Cl-SO3H)作磺化剂,合成了磺化聚醚醚酮(SPEEK);并通过不同分子量、掺量的聚乙烯吡咯烷酮(PVP),测试了SPEEK膜的基本性能,并进行了SPEEK/PVP共混膜材的制备研究.采用傅立叶红外(FT-IR)、热重(TG)、扫描电镜(SEM)、交流阻抗(EIS)以及干湿称重法、芬顿法等,测试分析了PVP的分子量及掺量对SPEEK膜的热稳定性、形貌结构、尺寸稳定性、抗氧化性,以及质子传导性能的影响.结果表明:SPEEK/PVP(质量比为1∶1)共混膜具有较好的热稳定性,表面光滑,更加致密,溶胀度仅为13.34％,抗氧化稳定性可达2.06％,电导率达0.06 S/cm,显著优于SPEEK膜.

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