Surface charge decay on HTV silicone rubber: effect of material treatment by corona discharges
Journal article, 2012

Surface charge decay on thick flat samples of high temperature vulcanized silicone rubber is studied prior and after ac and dc corona pre-treatments. It is found that the charge decay rate on the material exposed to ac corona becomes much higher and sensitive to moisture content in the surrounding air. These features are associated with an increased surface conductivity and formation of a silica-like layer on the polymeric surface, both resulting from ac corona treatment. In contrast, characteristics of the charge decay on the material exposed to dc corona are found to be similar to that measured on untreated samples.

surface conductivity

bulk conduction

silicone rubber

surface potential

trap density distributions

surface charge

Corona treatment

Author

Sarath Kumara

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Bin Ma

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Yuriy Serdyuk

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Stanislaw Gubanski

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

IEEE Transactions on Dielectrics and Electrical Insulation

1070-9878 (ISSN)

Vol. 19 6 2189-2195

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

Areas of Advance

Materials Science

More information

Created

10/7/2017