Space charge behaviors in low-density polyethylene

Author

Mizutani, T. ; Semi, H. ; Tomioka, J. ; Kaneko, K. ; Mori, T. ; Ishioka, M.

Author_Institution

Nagoya Univ., Japan

fYear

1999

fDate

1999

Firstpage

43

Lastpage

46

Abstract

The space charge distributions in LDPE( low-density polyethylene) have been measured by PEA (pulsed Electro-Acoustic) method. Two kinds of LDPE were used; LDPE polymerized under a high pressure process and m-LDPE polymerized with metallocene catalyst. The thickness of a sample was about 100 μm. The space charge distributions in both LDPE and m-LDPE depended on the materials of electrodes. Positive and negative carriers were easily injected from the semicon electrode. Home space charge near the Al electrode was formed only in m-LDPE. There was not a big difference in the amount of space charge between m-LDPE and LDPE, but the space charge in LDPE was spreading more widely than that in m-LDPE. These space charge behaviors were compared with the conduction current and the differences between LDPE and m-LDPE were discussed

Keywords

acoustoelectric effects; polyethylene insulation; space charge; Al electrode; LDPE; conduction current; home space charge; low-density polyethylene; metallocene catalyst; pulsed Electro-Acoustic method; space charge behavior; Cables; Charge measurement; Current measurement; Electrodes; Polyethylene; Polymers; Pulse measurements; Pulsed electroacoustic methods; Space charge; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrets, 1999. ISE 10. Proceedings. 10th International Symposium on

Conference_Location

Athens

Print_ISBN

0-7803-5025-1

Type

conf

DOI

10.1109/ISE.1999.831817

Filename

831817