Hydratization of the PDMS backbone during water immersion test

Author

Gustavsson, T.G. ; Gubanski, S.M. ; Lambrecht, J.

Author_Institution

Dept. of Electr. Power Eng., Chalmers Univ. of Technol., Goteborg, Sweden

Volume

1

fYear

1998

fDate

25-28 Oct 1998

Firstpage

269

Abstract

This paper deals with the influence of water immersion on the hydrophobicity loss process of different silicone rubbers. The advancing and receding angles (AA and RA) of thin rubber plates were measured. The presented results show that water immersion had only a small effect on the wettability (AA) of the silicone rubbers, but dramatically increased their surface retention properties (RA). In some cases step-like time dependent relations of the RA were found and it seems possible to explain the increase in surface water retention by assuming a hydratization of the polydimethylsiloxane backbone. On the other hand, the small increase in the AA with immersion time can appear to be due to a weakly induced polarization of the methyl groups

Keywords

silicone rubber; solvation; wetting; hydratization; hydrophobicity; polydimethylsiloxane; silicone rubber; surface retention; water immersion test; weakly induced polarization; wettability; Insulation; Polarization; Pollution measurement; Power engineering and energy; Rubber; Spine; Surface treatment; Testing; Voltage; Water pollution;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1998. Annual Report. Conference on

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-5035-9

Type

conf

DOI

10.1109/CEIDP.1998.733965

Filename

733965