【摘要】 双向拉伸聚丙烯（BOPP）薄膜是电容器的重要组成部分。本文归纳了作为BOPP薄膜的聚丙烯树脂原料关键参数（灰分含量、等规度、相对分子质量、熔体流动速率、等规序列长度）及其影响规律，同时总结了BOPP电容器薄膜的现有生产工艺，并进一步对BOPP薄膜性能的提升方法进行了综述。最后，提出未来电容器用BOPP薄膜的发展重点将是超低灰分树脂原料与耐热薄膜产品。更多还原

【Abstract】 Biaxially oriented polypropylene(BOPP) film is an important part of capacitor. The key parameters(ash content,isotacticity, molecular weight, melt flow rate, isotactic sequence length) of polypropylene resin used as raw materials for BOPP films and their influence rules were summarized in this paper. At the same time, the existing production technology of BOPP capacitor film was summarized, and the methods to improve the performance of BOPP film were further reviewed.Finally, it is proposed that the future development of BOPP films for capacitors will focus on the ultra-low ash resin raw materials and heat resistant films.更多还原