Method and system for improving high-temperature insulating property of blended film of converter device

The invention relates to the technical field of converter devices, and discloses a method and a system for improving the high-temperature insulation performance of a blended film of a converter device. Polypropylene (PP), a high-temperature-resistant cycloolefin copolymer (COC) and a substituted aryl phosphate salt nucleating agent are mixed, and the high-temperature insulation performance of the blended film of the converter device is improved by regulating and controlling the mixing ratio. The blend film with better microstructure and dielectric property is obtained, the breakdown performance of the polypropylene film at high temperature is improved, and the method is simple, effective and low in cost; according to the invention, the problems of poor high-temperature insulation performance effect and high cost of the existing blended film are solved. 本发明涉及变流器件技术领域，公开了一种变流器件的共混薄膜高温绝缘性能提升方法及系统，通过将聚丙烯(PP)和耐高温的环烯烃共聚物(COC)、取代芳基磷酸酯盐类成核剂混合，通过调控混合比例，获得了拥有较好微观形貌和介电特性的共混物薄膜，提升聚丙烯薄膜在高温下的击穿性能，简单有效且成本低廉；本发明解决了现有的共混薄膜高温绝