Surface Wettability of the Contaminative Silicone Rubber

Abstract:

The unique surface wettability of the silicone rubber can reduce substantially the flashover accidents caused by the dust pollution on the insulator. This paper describes the effects of non-soluble dust, salts component, and natural environment on the surface wettability of the silicone rubber. The structure and composition of the contamination on the silicone rubber surfaces were analyzed. The results indicate that the greater amount of non-soluble dust and salt-like component, the more difficult to restore the hydrophobic property of the sample surface, and even lost hydrophobicity; the natural environment had a more complex influence on silicone hydrophobic property. In short, the property of hydrophobicity and the migration of hydrophobicity of silicone rubber, especially the latter, are important reasons for inhibition of flashover on polluted insulator. However, this special behavior of surface wettability of silicone rubber is affected by many environmental factors.

• Periodical: Applied Mechanics and Materials (Volumes 675-677)
• Pages: 31-37
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.675-677.31
• Online since: October 2014
• Authors: Yang Yu Hu, Xiang Yu, Guo Gang Wang*, Ming Lu
• Keywords: Migration of Hydrophobicity, Pollution Flashover, Silicone Rubber, Surface Wettability

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