Heterogeneous dielectric materials with high permittivity - Electrical properties of carbon fibre - Epoxy composites in radiofrequency range 100 MHz-1.8 GHz

被引：0

作者：

Kresalek, V ^{[1
]}

Rimska, Z ^{[1
]}

机构：

[1] Tech Univ Brno, Fac Technol, Dept Phys & Mat Engn, Zlin 76272, Czech Republic

来源：

ELECTROMAGNETIC COMPATIBILITY 1998 | 1998年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Electromagnetic interference is a specific kind of environmental pollution. Although metals can provide adequate shielding against EMI, conductive polymer composites are being increasingly used too. Structure and distribution of electroconductive fillers or their aggregates play the key role in the control of complex permittivity. Materials with short carbon fibres have very near threshold of percolation (approximate to 4 vol%). By means of the microencapsulation technology composite materials with high loading of short carbon fibres were prepared without reaching the threshold of percolation. Carbon fibres were coated with epoxy resin or PMMA (polymethylmetacrylate) and imbedded into epoxy resin as a polymer matrix. Electrical properties of these materials were studied.

引用

页码：388 / 391

页数：2