新型耐电晕聚酰亚胺杂化薄膜的制备与性能研究

通过超声分散和原位聚合法制备了以s-BPDA/1,3,4-APB为树脂基体,以具有不同SiO2添加量的新型球型SiO2/聚酰亚胺杂化薄膜,所制备的杂化薄膜具有优异的力学、热学和耐电晕性能.通过SEM、TEM、FT-IR、UV-vis、DSC、TGA等实验手段对产物进行了分析和表征,并系统研究了SiO2的添加量对杂化薄膜...

Preparation and study on novel corona-resistance polyimide hybrid films

A series of spherical SiO2/PI hybrid films were prepared by incorporation of spherical SiO2 particles with different content in the s-BPDA/1,3,4-APB matrix resin via ultrasonic dispersion and in-situ multiphase polymerization,which possessed excellent thermal stabilities,good mechanical properties as well as outstanding electrical insulating properties.The prepared samples were characterized by SEM,TEM,FT-IR,UV-vis,DSC and TGA methods.The effects of SiO2 content on the mechanical,thermal and electrical prop...