Study on electrical property relaxations of 10 MeV electron beam irradiated HDPE

Cross linking of the HDPE was performed with high energy electron beam. EPR spectroscopy was used to study the life time of unpaired electron in the irradiated samples. Dielectric constant and dielectric strength almost remained unchanged but, volume resistively and dissipation factor increased and...

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Bibliographic Details
Published ine-Polymers Vol. 11; no. 1; pp. 616 - 621
Main Authors Ziaie, Farhood, Borhani, M., Majdabadi, A., Kazemi, Z.
Format Journal Article
LanguageEnglish
Published De Gruyter 01.12.2011
Subjects
breakdown voltage
dielectric constant
dielectric loss tangent
Electrical properties
electron beam
EPR measurements
high density polyethylene
volume resistance
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Summary:Cross linking of the HDPE was performed with high energy electron beam. EPR spectroscopy was used to study the life time of unpaired electron in the irradiated samples. Dielectric constant and dielectric strength almost remained unchanged but, volume resistively and dissipation factor increased and decreased respectively, after irradiation. The results shows that the dissipation factor is going to be recovered slowly with the storing time at room temperature. It is believed that variation of some electrical properties during time after irradiation are due to the effects of free radical and charge trapping remained in the bulk of material.
ISSN:2197-4586
1618-7229
1618-7229
DOI:10.1515/epoly.2011.11.1.616