原位合成法制备Nafion-SiO_2复合膜工艺研究  

Technical Research of Nafion-SiO_2 Composite Membrane via in-site Synthesis

作　　者：余军[1] 潘牧[1] 

机构地区：[1]武汉理工大学国家重点试验室,武汉430070

出　　处：《化工生产与技术》2007年第4期1-4,共4页Chemical Production and Technology

摘　　要：采用原位合成的方法制备了Nafion-SiO2复合膜,并对制备过程中的工艺参数进行了研究。实验结果表明:复合膜制备过程中Nafion膜在乙醇与水的混合溶液中浸泡30min,膜的拉伸强度减少较小,不同的正硅酸乙酯与乙醇混合溶液中的浸泡时间对复合膜SiO2的质量分数有较大影响;复合膜的含水率和电导率均高于Nafion膜,说明复合膜具有提高膜的耐高温性能的可能性。Nafion-SiO2 composite membrane is synthesized in-site, and the process parameters are studied. Experiment results show that in the preparation Nafion composite membrane is marinated 30 min in the mixing solution of ethanol and water, tensile strength of the membrane is decreased very little, marination time in the mixing solution of tetraethoxysilanes and ethanol has a great influence on silicon content of composite membrane; moisture and conductivity of the composite membrane is higher than those of the Nafion membrane. It shows that the composite membrane has the possibility of raising the high temperature resistance.

关 键 词：Nation—SiO2复合膜 原位合成 清洗 工艺 

分 类 号：TB383.2[一般工业技术—材料科学与工程]