SiCI_4/H_3PO_4添加的PVDF复合电解质膜的研制  

Study on proton conducting membranes based on PVDF(Polyvinylidene fluoride) doped SiCl_4/H_3PO_4

作　　者：郭贵宝[1] 孟淑敏[2] 安胜利[1] 

机构地区：[1]北京科技大学冶金与生态工程学院 [2]内蒙古科技大学材料与冶金学院,内蒙古包头014010

出　　处：《内蒙古科技大学学报》2007年第2期141-143,共3页Journal of Inner Mongolia University of Science and Technology

基　　金：教育部第三届高校青年教师教学科研奖励计划项目

摘　　要：以聚偏氟乙烯（PVDF）为基质，加入适量的H3PO4和SiCl4，利用流延法制备了H3PO4／SiCl4掺杂的PVDF质子导电膜，采用交流阻抗谱法研究了质量分数为0．15H3PO4和不同质量分数SiCl4的PVDF电解质膜的导电性能及相对湿度对电导率的影响．结果表明，质量分数为0．10SiCl4，0．15H3PO4的PVDF复合电解质膜，室温电导率为6．37×10^-2S／cm，相对湿度在20％-80％范围内，电解质的电导率变化不大．A novel composite membrane of PVDF （Polyvinylidene fluoride） doped with H3PO4/SiCl4 was prepared. The effect of SiCl4 concentration and humidity on the conductivity of composite electrolyte was investigated with the method of alternate current impedance at room temporature. The results indicated that the room temperature conductivities of the electrolyte with 0.10 SiCl4 and 0.15 H3PO4 reached 6.37 × 10^-2 S·cm ^-1 which almost keeps constant when the RH scale ranges between 20 % and 80%.

关 键 词：气体传感器 四氯化硅 质子导电性 保水性 

分 类 号：TQ316.337[化学工程—高聚物工业]