Effect of copolymerization on electrical and water trees of polyethylene

Author

Nawata, Masahito ; Kawamura, Hideaki ; Ishino, Iwao ; Ieda, Masayuki

Author_Institution

Dept. of Electr. & Electron. Eng., Meijo Univ., Nagoya, Japan

fYear

1991

fDate

8-12 Jul 1991

Firstpage

143

Abstract

Electrical- and water-treeing breakdown phenomena were investigated on polyethylene copolymerized with various monomers. The resistance to electrical treeing in copolymerized specimens was evaluated according to the tree-inception voltages. The AC-tree-inception voltage decreased with increase in halogen atom content in the monomers. The resistance to water treeing in copolymerized specimens was evaluated according to the growth of water trees that arose from the tip of a needle-like water electrode. The growth of water treeing decreased with increase in halogen atom content in the monomers. Halogen atoms which were copolymerized in polyethylene improved the AC-electric-tree resistance and the water-tree resistance

Keywords

electric breakdown of solids; halogens; materials testing; organic insulating materials; polymer blends; AC-electric-tree resistance; copolymerized specimens; copolymers; electrical treeing breakdown phenomena; electrical trees; halogen atom content; needle electrodes; needle-plane electrodes; polyethylene; tree-inception voltages; water trees; water-tree resistance; water-treeing breakdown phenomena; Dielectrics and electrical insulation; Electric breakdown; Electric resistance; Electrodes; Needles; Organic materials; Polyethylene; Polymers; Trees - insulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1991., Proceedings of the 3rd International Conference on

Conference_Location

Tokyo

Print_ISBN

0-87942-568-7

Type

conf

DOI

10.1109/ICPADM.1991.172138

Filename

172138