DESIGN AND MANUFACTURING OF FABRIC REINFORCED ELECTROMAGNETIC SHIELDING COMPOSITE MATERIALS

Year 2020, Volume: 30 Issue: 2, 92 - 98, 28.06.2020

Devrim Demiray Soyaslan

https://doi.org/10.32710/tekstilvekonfeksiyon.568529

Cited By: 6

Abstract

There is an increasing need to develop new materials for
shielding against electromagnetic pollution that result of the change in our
life styles. In this study, a high performance textile based composite material
that provides effective electromagnetic protection is presented to meet this
demand. The base textile is a weft knitted fabric produced by using a hybrid
yarn consists of polyamid and kevlar 49 yarn plied with a stainless steel wire
on a winding machine. Various weft knitted structures were processed by a hot
press to obtain 1.5-3.0 mm thin composite layer forms. The polyamid yarn is the
matrix, the kevlar 49 yarn is the reinforcing and stainless steel wire is
conductive material in the composite. The Electromagnetic shielding
effectiveness (EMSE) measurement in 30-3000 MHz frequency band shown that a
shielding performance of 20-50 dB can be achieved depending on the thickness
and structure of the composites. 

Keywords

composite, electromagnetic, shielding, knitting

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