CARBONIZATION OF KEVLAR FABRICS FOR EFFECTIVE EMI SHIELDING APPLICATIONS

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F18%3A00006365" target="_blank" >RIV/46747885:24410/18:00006365 - isvavai.cz</a>

Result on the web

<a href="http://vat.ft.tul.cz/Archive/VaT_2018_4.html" target="_blank" >http://vat.ft.tul.cz/Archive/VaT_2018_4.html</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

CARBONIZATION OF KEVLAR FABRICS FOR EFFECTIVE EMI SHIELDING APPLICATIONS

Original language description

In the present work, porous and electrically conductive activated carbon fabric was produced by heating Kevlar fabric wastes using novel single stage carbonization. The influence of carbonization temperature of 800, 1000 and 1200°C on physical and morphological properties of activated carbon fabric was studied from EDX and SEM analysis. Additionally, the electrical conductivity was also measured. At the end, the utility of prepared activated carbon web was investigated for electromagnetic shielding ability in high frequency (i.e. 2.45 GHz) and low frequency regions (i.e. below 1.5 GHz) using waveguide method and coaxial transition line method respectively. The activated carbon fabric produced at 1200°C showed maximum shielding effectiveness in both high and low frequency regions. For single layers of 1200°C carbon fabric, the electromagnetic shielding effectiveness of 40.5, 41.8, 45.1 and 50.9 dB was found for respective frequencies of 30 MHz, 100 MHz, 1 GHz and 1.5 GHz. This behaviour was attributed to increased absorption of electromagnetic radiations due to its higher porosity and also to increased reflections of electromagnetic radiations due to its higher electrical conductivity.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

20503 - Textiles; including synthetic dyes, colours, fibres (nanoscale materials to be 2.10; biomaterials to be 2.9)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Fibres and textiles (Vlákna a textil)

ISSN

1335-0617

e-ISSN

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Volume of the periodical

25

Issue of the periodical within the volume

4

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

4

Pages from-to

41-44

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85064484370