Effect of surface condition on the evaluation of hydrophobicity of polymer insulator

Author

Tokoro, Tetsuro ; Kojima, S. ; Nagao, Masaru

Author_Institution

Gifu Nat. Coll. of Technol., Gifu, Japan

fYear

2011

fDate

6-10 Sept. 2011

Firstpage

451

Lastpage

454

Abstract

Hydrophobicity of polymer surface is one of the degradation indices of polymer insulator material and is usually evaluated by using an image of sprayed water on the sample surface, which is called STRI or spray method. In this study, the effects of parameters to the evaluation of hydrophobicity of silicone rubber are studied. The parameters include surface roughness, measurement temperature, water absorption, weight percent of ATH filler and surface treatment of fillers such as ATH and silica. Hydrophobicity is evaluated by using the image analysis of sprayed water, the dynamic drop test and also the contact angle of a water droplet.

Keywords

hydrophobicity; polymer insulators; silicone rubber insulators; surface roughness; ATH filler; STRI; degradation indices; dynamic drop test; hydrophobicity; image analysis; measurement temperature; polymer insulator; polymer surface; silicone rubber; spray method; surface condition effect; surface roughness; surface treatment; water absorption; water droplet; Polymers; Rough surfaces; Rubber; Surface roughness; Surface treatment; Temperature measurement; Deterioration diagnosis; Hydrophobicity; Polymer insulator; Silicone rubber; Surface free energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials (ISEIM), Proceedings of 2011 International Conference on

Conference_Location

Kyoto

Print_ISBN

978-4-88686-074-3

Type

conf

DOI

10.1109/ISEIM.2011.6826310

Filename

6826310