中国塑料2026，Vol.40Issue(1)：64-69,6.DOI:10.19491/j.issn.1001-9278.2026.01.009
基于同步拉伸的聚丙烯电容超薄膜的结构与性能
Structure and properties of polypropylene capacitor ultra-thin films based on synchronous biaxial stretching
摘要
Abstract
This study successfully developed the industry's first polypropylene ultra-thin capacitor film produced via syn-chronous biaxial stretching.A comparative analysis of the structure and properties was conducted against commercially available asynchronously stretched films.The results revealed that the synchronously stretched films featured larger crys-tal grains,lower molecular orientation,and a reduced melting point.However,they also demonstrated significantly low-er bidirectional structural differences and superior uniformity.While these films exhibit lower mechanical strength and higher thermal shrinkage,their dielectric breakdown behavior is more consistent,as evidenced by a more convergent Weibull distribution.The 10%-probability critical breakdown strength is 15%higher than that of asynchronous films,indicating superior insulation stability.Furthermore,the analysis confirms that the characteristic properties of the foreign(asynchronous)films,such as refined grains,high melting points,and consistent double-sided structure,confer distinct performance advantages in other areas.关键词
聚丙烯电容膜/同步双拉/表面结构/击穿强度Key words
polypropylene capacitor film/synchronous biaxial stretching/surface structure/breakdown strength分类
化学化工引用本文复制引用
郭汉乡,王锦清,杜建强,辜少捷,黄炎煌..基于同步拉伸的聚丙烯电容超薄膜的结构与性能[J].中国塑料,2026,40(1):64-69,6.基金项目
泉州嘉德利电子材料股份公司自研项目RD32 （）
