On the correlation between electromagnetic waves absorption and electricalconductivity of carbon black filled polyethylenes

Authors
Dishovsky, N Grigorova, M
Citation
N. Dishovsky et M. Grigorova, On the correlation between electromagnetic waves absorption and electricalconductivity of carbon black filled polyethylenes, MATER RES B, 35(3), 2000, pp. 403-409
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS RESEARCH BULLETIN
ISSN journal
00255408 → ACNP
Volume
35
Issue
3
Year of publication
2000
Pages
403 - 409
Database
ISI
SICI code
0025-5408(200002)35:3<403:OTCBEW>2.0.ZU;2-J
Abstract
The electroconductivity and microwave properties of high-density polyethyle nes containing 0-20 mass% acethylene carbon black were investigated. A corr elation between electroconductivity and ultra-high frequency (UHF) electrom agnetic waves absorption for systems containing carbon black in concentrati ons lower than that at the percolation threshold was found. The increase of carbon black (CB) concentration above the percolation threshold influences electrical conductivity slightly, but considerably changes microwave behav ior. The highest coefficient of attenuation was registered in the 2.0-3.0 G Hz range (C) 2000 Elsevier Science Ltd. All rights reserved.