材料科学
聚苯乙烯
涂层
等离子体聚合
表面改性
聚合物
电介质
聚合
表面电荷
复合材料
消散
化学工程
高分子化学
等离子体
光电子学
物理化学
热力学
物理
工程类
化学
量子力学
作者
Penghao Zhang,Cheng Zhang,Chuansheng Zhang,Fei Kong,Ping Yan,Tao Shao
出处
期刊:Nanotechnology
[IOP Publishing]
日期:2020-12-30
卷期号:32 (12): 125703-125703
被引量:12
标识
DOI:10.1088/1361-6528/abcfe9
摘要
Polystyrene (PS) is a common insulating material in pulsed power devices, which has excellent and reliable insulation properties. However, the charge accumulation on the insulator surface seriously threatens its surface insulation property. Surface modification has been verified as an effective way for inhibiting surface charge accumulation. In this paper, plasma polymerized fluorocarbon (PPFC) coating was prepared by low-temperature plasma polymerization in the mixture of methyl-methacrylate and dodecafluoroheptyl-methacrylate (DFHMA). Compared with the untreated PS, the surface charge dissipation rate of PPFC coating is increased by more than 6 times. The introduction of DFHMA makes the coating have no obvious ageing effect after the storage, and has good reusability after the surface flashover. This work provides a new method for modification of polymer dielectrics and a novel way for the preparation of high-charge-dissipation polymers in other related fields.
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