In order to obtain proton exchange membrane with high efficiency and low cost，zirconium phosphate(ZrP)was doped into polyimide(PI)to prepare PI／ZrP proton exchange composite membranes

low thermal expansion petalite-phosphate ceramic material was prepared by using natural mineral petalite，Hualin kaolin,Guizhou kaoJin,Guangxi talc．

mullite,zirconium phosphate,complex phase,low inflation

Zirconium phosphate has the characteristics of low thermal expansion, high temperature resistance, high strength, and chemical satbility. Altought the inner structure of pure zirconium phosphate is ...