Effect of surfactants in water treeing

Author

Rouviere, J. ; Kamenka, N. ; Lindheimer, M. ; Poggi, Y. ; Filippini, J.C.

Author_Institution

Univ. des Sci. & Tech. du Languedoc, Montpellier, France

fYear

1988

fDate

12-16 Sep 1988

Firstpage

728

Lastpage

730

Abstract

The influence of surfactants on water tree initiation and growth was studied using the water needle method in polyethylene specimens. According to their nature (ionic or anionic) and concentration, they may promote or reduce the water treeing phenomenon. Anionic surfactants in solution in water significantly influence the initiation and growth of water trees in polyethylene. At low concentration-below the CMC (coexistence of micelles and monomers) point-the propagation rate is larger than with the simple corresponding sodium salt. At high concentration-above the CMC point-a large initiation delay is observed and the propagation rate is lower than below the CMC point

Keywords

electric breakdown of solids; electromigration; organic insulating materials; permeability; polymers; surface phenomena; anionic type; high concentration; initiation delay; ionic type; low concentration; polyethylene specimens; polymeric insulation; propagation rate; surface active agent; surfactants; water needle method; water tree initiation; Counting circuits; Life estimation; Needles; Polyethylene; Polymers; Solids; Testing; Trees - insulation; Voltage; Water;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1988. Proceedings., Second International Conference on Properties and Applications of

Conference_Location

Beijing

Type

conf

DOI

10.1109/ICPADM.1988.38503

Filename

38503