Title :
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
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;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1988. Proceedings., Second International Conference on Properties and Applications of
Conference_Location :
Beijing
DOI :
10.1109/ICPADM.1988.38470
