Title :
Charge injection and polarization in ethylene-propylene copolymer (EPDM) probed with the thermal pulse technique
Author :
Zanin, Maria ; Giacometti, José A. ; DeReggi, Aim S.
Author_Institution :
DEMA, Univ. Federal de Sao Carlos, Sao Paulo, Brazil
Abstract :
The authors report measurements of injected charge and polarization in ethylene-propylene copolymer (EPDM) with and without alumina filter using the thermal pulse method, following the application of high voltage. It is found that homocharge injection occurs from both electrodes with more positive homocharge than negative homocharge. Dipolar-like polarization was induced by the applied voltage in specimens containing filler
Keywords :
dielectric polarisation; filled polymers; organic insulating materials; polyethylene insulation; alumina filter; charge injection; dipolar-like polarisation; ethylene-propylene copolymer; high voltage; homocharge injection; injected charge; polarization; thermal pulse technique; Charge measurement; Current measurement; Electrodes; Optical polarization; Position measurement; Pulse measurements; Space charge; Surface charging; Time measurement; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1993. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-0966-9
DOI :
10.1109/CEIDP.1993.378970
