Influence of air flow on hydrophobicity transfer of polluted high temperature vulcanized silicone rubber samples

被引：0

作者：

Dai, Hanqi ^{[1
]}

Mei, Hongwei ^{[2
]}

Wang, Xilin ^{[2
]}

Zhao, Chenlong ^{[2
]}

Zhou, Jun ^{[3
]}

Zheng, Rong ^{[4
]}

Zhang, Haijun ^{[4
]}

机构：

[1] State Grid Beijing Electric Power Company, Beijing

[2] Graduate School at Shenzhen, Tsinghua University, Shenzhen

[3] China Electric Power Research Institute, Beijing

[4] Hydropower Plant, Petro China Huabei Oilfield Company, Renqiu

来源：

Gaodianya Jishu/High Voltage Engineering | 2015年 / 41卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Air flow; Artificial pollution test; Contact angle; Droplet area; Hydrophobicity transfer; Silicone rubber;

D O I：

10.13336/j.1003-6520.hve.2015.08.034

中图分类号：

学科分类号：

摘要：

In order to improve the artificial pollution tests of composite insulators, we investigated the influence of air flow on the hydrophobicity transfer of polluted high temperature vulcanized (HTV) silicone rubber through experimental artificial pollution tests.In the tests, samples were dried in two groups of sealed containers between which air flow conditions were significantly distinguished. After measuring the static contact angle and the area of droplets on the pollution layers, we compared the surface hydrophobic states of the samples. Test results show that a good air flow condition helps to keep pollution layer dry and hence improves the pollution's capability of getting hydrophobicity.Whereas, in the case of lacking air flow, the hydrophobicity transfer process of samples is slowed down, and the hydrophobicity state of pollution layers is sensitive to environmental changes.In conclusion, the hydrophobicity transfer process of composite insulator is affected by various environment factors including air flow, a new one that needs to be taken into consideration.The obtained results are useful for further understanding the process of hydrophobicity transfer, as well as improving the artificial pollution tests of composite insulators. ©, 2015, Science Press. All right reserved.

引用

页码：2795 / 2802

页数：7

共 23 条

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