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

被引：68

作者：

Dishovsky, N ^{[1
]}

Grigorova, M

机构：

[1] Univ Chem Technol & Met, BU-1756 Sofia, Bulgaria

[2] Bulgarian Acad Sci, Inst Polymers, BU-1113 Sofia, Bulgaria

来源：

MATERIALS RESEARCH BULLETIN | 2000年 / 35卷 / 03期

关键词：

composites; polymers; differential scanning calorimetry (DSC); electrical properties;

D O I：

10.1016/S0025-5408(00)00230-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electroconductivity and microwave properties of high-density polyethylenes containing 0-20 mass% acethylene carbon black were investigated. A correlation between electroconductivity and ultra-high frequency (UHF) electromagnetic waves absorption for systems containing carbon black in concentrations 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 behavior. The highest coefficient of attenuation was registered in the 2.0-3.0 GHz range (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：403 / 409

页数：7

共 11 条

[1]

BENGTSSON PC, 1995, PLAST RUB COMPOS PRO, V20, P151

[2] ELECTRICAL-PROPERTIES OF CARBON-BLACK POLYETHYLENE COMPOSITES [J].