材料科学
表面改性
电介质
聚丙烯
压力(语言学)
膜
复合材料
电容器
介电强度
电压
嫁接
电子工程
光电子学
电气工程
聚合物
化学
化学工程
工程类
哲学
生物化学
语言学
作者
Haoliang Liu,Boxue Du,Meng Xiao,Toshikatsu Tanaka
出处
期刊:IEEE Transactions on Dielectrics and Electrical Insulation
[Institute of Electrical and Electronics Engineers]
日期:2021-08-01
卷期号:28 (4): 1264-1272
被引量:18
标识
DOI:10.1109/tdei.2021.009585
摘要
In this paper, a novel modification method for biaxially oriented polypropylene (BOPP) membranes is proposed based on surface-grafting technology. The experimental results show that, compared with the pristine samples, the surface-grafted films show better breakdown strength under different voltage stress especially at higher temperatures (85 °C). The DC withstand strength of the surface-grafted PP membranes grows by 42.7% from 386.4 to 551.2 kV/mm. The breakdown strength climbs by 63.5% from 305.9 to 500.2 kV/mm under DC superimposed pulse voltage. Under DC superimposed harmonic stress, the breakdown strength is increased from 175.6 to 587.4 kV/mm by 234%. The influence of surface modification on charge transmission behavior is proposed based on the Density Functional Theory (DFT) simulation. This research provides a theoretical and methodological reference for performance optimization by surface modification for BOPP capacitors.
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