Electrical conduction in alumina-filled EPDM

Author

Zanin, M. ; Ferreira, G.F.Leal ; Giacometti, J.A. ; Moreno, R.A.

Author_Institution

Inst. Fisica Quimica de Sao Carlos, Univ. Sao Paulo, Brazil

fYear

1992

Firstpage

154

Lastpage

159

Abstract

The stationary current versus applied voltage characteristics for vulcanized EPDM copolymer samples were investigated for different values of sample thickness, and for several metallic electrodes and ratios of alumina filler. The results show that both the bulk and the contact properties of the samples are important. A model, still under test, is proposed to explain the strong electrical field dependence (of roughly the esp(E¹ ²) type) observed

Keywords

composite insulating materials; electrical conductivity of amorphous semiconductors and insulators; filled polymers; high field effects; organic insulating materials; polymer blends; polymer films; Al₂O₃; Al₂O₃ filled EPDM; applied voltage; electrical conduction; electrical field dependence; ethylene-propylene; high voltage insulators; metallic electrodes; sample thickness; stationary current; steady state current; vulcanized EPDM copolymer samples; Current measurement; Dielectrics and electrical insulation; Electrodes; Electronic equipment testing; Polymers; Raw materials; Steady-state; Thickness measurement; Time measurement; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1992. Annual Report. Conference on

Conference_Location

Victoria, BC

Print_ISBN

0-7803-0565-5

Type

conf

DOI

10.1109/CEIDP.1992.283233

Filename

283233