Title :
A study of polarization in polyethylene
Author :
Perez, Debora Justel ; Hornsby, J.S. ; Das-Gupta, D.K.
Author_Institution :
Sch. of Inf., Univ. of Wales, Bangor, UK
Abstract :
Spatial distributions of polarization and electric field have been determined by the laser intensity modulation method (LIMM) for untreated and hexane treated low density polyethylene (LDPE) after dc and ac poling. The results show that the polarization distribution is affected by a presence of injected and localized space charge concentrations near the two surface regions of the polymer. Furthermore, this effect is particularly enhanced with hexane treatment and subsequent ac poling
Keywords :
charge injection; dielectric polarisation; laser beam effects; photothermal effects; polyethylene insulation; pyroelectricity; space charge; LDPE; ac poling; dc poling; electric field; hexane treated low density polyethylene; hexane treatment; injected charge concentrations; laser intensity modulation method; localized space charge concentrations; polarization; polarization distribution; polyethylene; polymer; spatial distributions; surface regions; Electric fields; Electrodes; Frequency; Optical films; Optical modulation; Polarization; Polyethylene; Polymers; Pyroelectricity; Space charge;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-6413-9
DOI :
10.1109/CEIDP.2000.885257
