绿藻对交流复合绝缘子伞裙表面形貌及憎水性的影响机理

doi:10.19595/j.cnki.1000-6753.tces.180114

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Abstract Algal epiphytes on insulators have attracted much attention from experts and scholars both at home and abroad. The effect of algae as a special biological fouling on the performance of composite insulators is not clear. In this paper, 500kV AC composite insulators attached to green algae in Guangdong area are taken as samples. The distribution of green algae on composite insulators was analyzed. Hydrophobic contact angle measurement, EPMA electron probe and scanning electron microscopy (SEM) were used to analyze the effect of green algae on the surface of silicone rubber sheds. The inhibition of the migration of hydrophobicity small molecules by the green algae biological layer leads to the complete loss of hydrophobicity in the epiphytic sheds area of green algae. The interaction between the adhesion behavior of green algae cells and the natural aging of silicone rubber makes the sheds surface sheds form a special block microstructure like scale. The green algae adhesion layer can effectively delay the development of cracks and depressions on the sheds surface in depth.

Key words： Composite insulator green algae hydrophobic micromorphology biological adhesion

Received: 21 January 2018 Published: 01 March 2019

PACS:

TM216

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	Articles by authors
	Xie Congzhen
	Li Chaohong
	Zeng Leilei
	Yang Ting
	Xia Yunfeng

Cite this article:

Xie Congzhen,Li Chaohong,Zeng Leilei等. Effect Mechanism of Green Algae on Surface Morphology and Hydrophobicity of AC Composite Insulator Sheds[J]. Transactions of China Electrotechnical Society, 2019, 34(4): 831-837.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.180114 OR https://dgjsxb.ces-transaction.com/EN/Y2019/V34/I4/831

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21 通信作者:谢从珍,女,1973年生,博士,教授,研究方向为输变电设备绝缘材料及缺陷诊断、输变电设备在线监测及大数据.E-mail: congzhen168@163.com