材料科学
泄漏(经济)
表面改性
分析化学(期刊)
嫁接
复合材料
表面能
电荷密度
电介质
聚丙烯
电容器
光电子学
电压
化学工程
电气工程
聚合物
化学
物理
色谱法
工程类
量子力学
经济
宏观经济学
作者
Hui Liu,B. X. Du,Meng Xiao
出处
期刊:IEEE Transactions on Dielectrics and Electrical Insulation
[Institute of Electrical and Electronics Engineers]
日期:2021-10-01
卷期号:28 (5): 1539-1546
被引量:24
标识
DOI:10.1109/tdei.2021.009577
摘要
In this paper, an advanced surface-grafting method is reported to improve the high-temperature performance of biaxially oriented polypropylene (BOPP) membranes. The leakage conductivity of the surface-grafted films decreases by 98% at 85 °C. The decline in the leakage loss contributes to the 99% charge-efficiency at 85 °C. The dielectric constant increases by 7%. The DC breakdown strength grows by 43% at 85 °C. The maximum energy storage density goes up from 1.45 to 2.77 J/cm 3 at 85 °C. The surface-grafted BOPP film exhibits outstanding energy density and charge-discharge efficiency characteristics. This research provides a theoretical reference for improving the performance of capacitor film based on surface modification.
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