Short term effects of DC and AC corona on the surface electrical properties of polymer films

Author

Fouracre, R.A. ; Chen, Gang ; Liu, Zhe ; Tedford, D.J.

Author_Institution

Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK

fYear

1988

fDate

12-16 Sep 1988

Firstpage

606

Abstract

The effects of DC and AC corona on loss tangent measurements in four thin foil polymer samples were investigated. The materials investigated were 25-μm polyimide (PI), 75-μm low-density polyethylene, 12-μm polyester, and 25-μm polytetrafluorethylene. Surface conductivity measurements of PI samples exposed to negative corona were also made, as were measurements of temperature effects on loss peak position for that material. It was concluded that the measured properties are a surface effect, possibly attributable to surface charges

Keywords

corona; dielectric losses; electronic conduction in insulating thin films; insulating thin films; organic insulating materials; polymer films; surface conductivity; 12 to 75 micron; AC corona; DC corona; loss peak position; loss tangent measurements; low-density polyethylene; negative corona; organic insulation; polyester; polyimide; polymer films; polytetrafluorethylene; short term effects; surface charges; surface conductivity measurements; surface electrical properties; temperature effects; thin foil polymer samples; Conducting materials; Conductivity measurement; Corona; Current measurement; Loss measurement; Polyethylene; Polyimides; Polymers; Position measurement; Temperature measurement;

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.1988.38470

Filename

38470