Title :
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
fDate :
8/1/1997 12:00:00 AM
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;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
