Preperation and performance of HGM-polyimide composite film
Ma Xinyu1, Liu Lizhu1,2, Weng Ling1,2, Dong Xinqian1
1.School of Materials Science and Engineering,Harbin University of Science and Technology,Harbin 150040; 2.Key Laboratory of Engineering Dielectric and Its Application,Ministry of Education,Harbin University of Science and Technology,Harbin 150080;
Abstract: The surface of hollow glass microspheres(HGM) was modified with different silane coupling agents KH550 and KH560.The hollow glass microspheres/polyimide composite films were prepared by in-situ polymerization using pyromellitic dianhydride and 4,4′-diaminodiphenyl ether as raw materials and N,N-dimethylacetamide as solvent.The modification of microspheres was characterized by FT-IR and scanning electron microscope(SEM).The results showed that silane coupling agents are successfully grafted onto microsphere surface.With the doping content of microspheres increased,the mechanical properties decreased to a certain extent.However,the dielectric properties of composite films were reduced obviously.The dielectric constant of film filled with unmodified hollow glass microspheres decreased from 3.5 to 2.4.The minimum dielectric constant of film modified by KH550 could reach about 2.
马馨雨, 刘立柱, 翁凌, 董馨茜. 中空玻璃微球/聚酰亚胺复合薄膜的制备及性能研究[J]. 化工新型材料, 2018, 46(12): 104-107.
Ma Xinyu, Liu Lizhu, Weng Ling, Dong Xinqian. Preperation and performance of HGM-polyimide composite film. New Chemical Materials, 2018, 46(12): 104-107.
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