The effect of low-molecular-weight species on space charge and conduction in LDPE

Author

Lee, Seung Hyung ; Park, Jung-Ki ; Lee, Chang Ryong ; Suh, Kwang S.

Author_Institution

Dept. of Chem. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea

Volume

4

Issue

4

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

425

Lastpage

432

Abstract

We have investigated the effect of low-molecular mass species on the space charge behavior such as space charge distribution and electrical conduction of LDPE (low density polyethylene). We also attempted to explain the relationship between the space charge distribution and electrical conduction. The heterocharge, conduction current and effective charge mobility decreased when the low-molecular-mass species in LDPE was removed. It was found that the decrease in conduction current was related to the decrease of heterocharge in LDPE

Keywords

current density; electrical conductivity; molecular weight; polyethylene insulation; power cable insulation; space charge; LDPE; charge injection; conduction current; effective charge mobility; electrical conduction; equilibrium current density; heterocharge; low density polyethylene; low-molecular-weight species; power cable insulation; space charge behavior; space charge distribution; Charge measurement; Conductive films; Current measurement; Electrodes; Materials science and technology; Polyethylene; Power cables; Semiconductor films; Space charge; Thickness measurement;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.625359

Filename

625359