Surface Modification of Epoxy-Ceramic Coatings by Plasma Treatment

Abstract:

A coating was made by electrostatic spraying of epoxy resin / TiO₂ particles for the purpose of suppressing audible noise caused by corona discharge on high-voltage transmission lines. Wetting property of the coating was improved by oxygen plasma treatment. It was found that the coating became more wettable as the increase of TiO₂ content during electrostatic spraying process. With respect to the coating for suppression of audible noise from transmission lines, the optimal mass ratio of TiO₂ particles (diameter:5-10μm ) to epoxy resin was 30%, and the contact angle was 73°on the epoxy / TiO₂ coating surface which could be reduced to less than 5°after oxygen plasma treatment for 20s.

• Periodical: Applied Mechanics and Materials (Volume 161)
• Pages: 167-171
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.161.167
• Online since: March 2012
• Authors: Ai Jun Yan, La Jun Feng, Hong Yan Shen, Jian Wu
• Keywords: Electrostatic Spraying, Epoxy Resin (ER), Hydrophilic Coating, Plasma Modification

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