The main performance index of a series of ultra clean polypropylene film for capacitor prepared by different polypropylene granules and film manufacturers are studied.The difference of each performan in crystallization characteristics,thermal performance,dielectric performance and insulation performance of capacitor film prepared by different polypropylene granules is compared.The test results show that the performance of some domestic-made polypropylene film for capacitor has reached the standards of imported film,but the former still has such problem as low crystallinity and weak quality of thin films.There are still gap between the domestic-made polypropylene film for capacitor and the world level.The domestic polypropylene granules and optimization of film preparation processes still need imporvement and the preparation of the film process still needs optimization.
关键词
薄膜电容器/超净聚丙烯/双向拉伸BOPP薄膜/电容器国产化
Key words
film capacitors/ultra-clean polypropylene/biaxially stretched BOPP film/localization of capacitors
维普
万方数据