Electrical conduction and breakdown in polyolefin with carbonyl groups

Author

Asada, Tadashi ; Ohki, Yoshimichi ; Ikeda, Masaaki ; Umeshima, Yuka

Author_Institution

Dept. of Electr. Eng., Waseda Univ., Tokyo, Japan

fYear

1995

fDate

17-20 Sep 1995

Firstpage

395

Lastpage

398

Abstract

The effect of polar groups on electrical conduction in polyolefin has been studied using oxidized low-density polyethylene (LDPE) and copolymers of ethylene and carbon-monoxide. It has been found that carbonyl groups may act as trap sites to suppress the current when their content is low, and become hopping sites to assist the carrier transport in the high content region. In the present report, temperature dependence of electrical conduction in polyolefin with low carbonyl contents is investigated from the results of DC conduction, space charge distribution and impulse breakdown strength

Keywords

electric breakdown; electric strength; hopping conduction; impulse testing; insulation testing; polyethylene insulation; polymer blends; polymer films; space charge; 20 to 90 C; LDPE; carbonyl groups; carrier transport; electrical conduction; hopping sites; impulse breakdown strength; polar groups; polyolefin; space charge distribution; trap sites; Breakdown voltage; Electric breakdown; Electrodes; Gold; Laboratories; Petrochemicals; Plastics; Space charge; Temperature dependence; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulating Materials, 1995. International Symposium on

Conference_Location

Tokyo

Print_ISBN

4-88686-047-8

Type

conf

DOI

10.1109/ISEIM.1995.496592

Filename

496592