离子注入改性聚四氟乙烯的真空表面闪络性能

2017 IEEE 21st International Conference on Pulsed Power (PPC) Pub Date : 2017-06-01 DOI:10.1109/PPC.2017.8291288

W. K. Zhao, R. Xu, C. Ren, J. Wang, P. Yan

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引用次数: 0

摘要

绝缘子表面闪络电压主要受材料表面特性的影响。表面处理技术已成为提高闪络电压的重要技术手段。采用氮离子注入法对聚四氟乙烯(PTFE)表面进行了改性。利用x射线光电子能谱(XPS)、兆欧表和表面闪络实验系统对样品进行了性能分析。实验结果表明，离子注入改性后的PTFE表面闪络电压显著提高。离子注入后，PTFE表面发生脱氟和氧化，表面电阻率降低2个数量级。表面闪络电压随注入能量的增大而增大。

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Surface flashover properties in vacuum of PTFE modified by ion implantation

The surface flashover voltage of insulator is mainly affected by surface properties of materials. Surface treatment technology has become an important technical means to improve flashover voltage. In this paper, the surface of polytetrafluoroethylene (PTFE) was modified by nitrogen ion implantation. And the properties of the sample were analyzed with X-ray photoelectron spectroscopy (XPS), megger and surface flashover experimental system The experimental results show that the surface flashover voltage of PTFE modified by ion implantation increase remarkably. After ion implantation, the defluorination and oxidation occur on the surface of the PTFE, the surface resistivity decrease by 2 orders of magnitude. The surface flashover voltage increase with the increase of injection energy.

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2017 IEEE 21st International Conference on Pulsed Power (PPC)

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