塑料科技2024，Vol.52Issue(4)：43-48,6.DOI:10.15925/j.cnki.issn1005-3360.2024.04.009
油浸处理引起BOPP粗化膜结构变化及其对性能的影响
Effects of Oil-impregnation on Structure and Property of Surface-Roughened BOPP Films
姚成 1蔡希鹏 1刘刚 1贾磊 1汪鹏 2王铠 2蔡汉生 1高德民2
作者信息
- 1. 南方电网科学研究院有限责任公司,广东广州 510663
- 2. 深圳供电局有限公司,广东深圳 518001
- 折叠
摘要
Abstract
In this study,the structure and properties of two surface-roughened films of biaxially oriented polypropylene(BOPP)before and after oil immersion were investigated.The roughening morphology of BOPP was characterized by optical microscopy,the crystal structure and crystallographic behavior were inspected by DSC and WAXD,and the orientation structure was evaluated by polarized infrared technology.The tensile mechanics,thermal oxidation stability and breakdown strength of the films were tested.The results show that the crystal structure of BOPP films prepared by two kinds of polypropylene with different chain characteristics does not change significantly before and after oil immersion.The orientation parameters θj and fj suggest that the orientation of the amorphous chains is decreased by oil immersion.In addition,the oil immersion improved the breakdown strength of the film.For example,the breakdown strengths of the high tacticity and narrow distribution films are 737 V/μm(before oil immersion)and 863 V/μm(after oil immersion).These results indicate that soaking in the insulating oil medium for a long time,the orientation relaxation in the amorphous region can eliminate the structural defects caused by internal stress and increase the breakdown strength of BOPP films.关键词
电容器用粗化膜/结晶/取向/无定形相/击穿场强Key words
Surface-roughened film for capacitor/Crystallization/Orientation/Amorphous phase/Breakdown strength分类
化学化工引用本文复制引用
姚成,蔡希鹏,刘刚,贾磊,汪鹏,王铠,蔡汉生,高德民..油浸处理引起BOPP粗化膜结构变化及其对性能的影响[J].塑料科技,2024,52(4):43-48,6.
