|
|
|
| Characteristics of Microstructure and Electrical Treeing in PE/MMT Nanocomposites |
| Zhang Xiaohong, Gao Junguo, Zhang Jinmei, Liu Jiayin, Ji Quanquan |
| Harbin University of Science and Technology Harbin 150040 China |
|
|
|
|
Abstract Electrical tree is a crack phenomenon happened in polymer materials, and is an electrical aging phenomenon that seriously threatens operation safety of power equipment, in which take polymer as main insulation material. For analyzing montmorillonite’s inhibitory effects to electrical treeing in polyethylene, polyethylene/montmorillonite (PE/MMT) composites are prepared by means of melting intercalation process, and the result of scanning electron microscopy(SEM) shows that the MMT slices with nanosize in thickness is dispersed in the PE. The characteristics of electrical treeing in the PE and the PE/MMTcomposites are investigated (e.g. the growth rate, fractal dimension), and finally the results confirm that the PE/MMT nanocomposites can effectively inhibite the formation and growth of electrical treeing.
|
|
Received: 13 May 2008
Published: 18 February 2014
|
|
|
|
|
|
[1] 李儒剑, 刘越军. 无机粒子填充改性聚乙烯研究进展[J]. 湖南工业大学学报, 2007, 21(6): 40-45.
[2] 吴炯. 35kV聚乙烯电缆树枝化击穿机理的研究[J]. 西安交通大学学报, 1980, 12(4):77-87.
[3] 王志钧. 500kVXLPE电缆绝缘中树枝化现象的述 评[J]. 电线电缆, 2001, 4(2): 16-19.
[4] 张晓虹, 高俊国, 等. 纳米蒙脱土对聚乙烯击穿和电导特性的影响[J]. 高电压技术, 2009, 35(1): 129-134.
[5] 武宇波, 李入鹏, 等. 蒙脱土改性聚乙烯复合材料的高场介电性能研究[J]. 绝缘材料, 2007, 40(3): 41-44.
[6] 郝淑娟, 王雯艳, 等. 无机纳米粉末掺杂聚乙烯中的空间电荷行为研究[C]. 第十一届全国工程电介质学术会议, 上海, 2007: 301-304.
[7] 赵智大. 高电压技术[M]. 北京: 中国电力出版社. 2006.
[8] 郑晓泉, Chen G, 等. 交联聚乙烯电缆绝缘中的导电和非导电型电树枝[J]. 中国电机工程学报, 2004, 24(3): 142-144.
[9] Ding H Z, Varlow B R . A new model for propagation of electrical tree structures in polymeric insulation[C]. 2002 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2002: 934-937.
[10] Cavallini A, Ciani F. The effect of space charge on phenomenology of partial discharges in insulation
cavities[C]. 2005 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, 2005: 410 -413.
[11] 赵华. XLPE中电树枝的分形特性研究[J]. 机械设计与制造, 2006(5): 46-47.
[12] 郑晓泉, Chen G, 等. 交联聚乙烯电缆绝缘中的电树枝与绝缘结构亚微观缺陷[J]. 电工技术学报, 2006, 21(11): 28-33. |
|
|
|
2009, Vol. 24 
