Effects of byproducts of crosslinking agent on space charge formation in polyethylene-comparison between acetophenone and /spl alpha/-methylstyrene

We have examined the effects of acetophenone and /spl alpha/-methylstyrene on the space charge evolution in PE. The samples tested are additive-free LDPE sheets. The important conclusions obtained are as follows: (1) Positive charges are easy to migrate from the byproduct-existing region to the non-...

Full description

Saved in:
Bibliographic Details
Published in2000 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.00CH37132) Vol. 2; pp. 535 - 538 vol.2
Main Authors Ohki, Y., Hirai, N., Kobayashi, K., Minami, R., Okashita, M., Maeno, T.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2000
Subjects
Absorption
Cables
Charge measurement
Current measurement
Electronic equipment testing
Polyethylene
Pulse measurements
Pulsed electroacoustic methods
Space charge
Voltage
Online AccessGet full text

Cover

More Information
Summary:We have examined the effects of acetophenone and /spl alpha/-methylstyrene on the space charge evolution in PE. The samples tested are additive-free LDPE sheets. The important conclusions obtained are as follows: (1) Positive charges are easy to migrate from the byproduct-existing region to the non-existing region while negative charges are difficult. (2) Positive charge migration is easier in the LDPE sheet soaked into /spl alpha/-methylstyrene than in the one soaked into acetophenone, which is probably due to the difference in permeation velocity of the two byproducts. (3) The values of mobility and conductivity calculated from the space charge profiles agree with the assumption that ionic carriers are responsible for the conduction in the byproduct-existing region.
ISBN:9780780364134
0780364139
DOI:10.1109/CEIDP.2000.884016