Title :
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
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;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1992. Annual Report. Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-0565-5
DOI :
10.1109/CEIDP.1992.283233
