Fiber-based structures for electromagnetic shielding – comparison of different materials and textile structures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F18%3A00006169" target="_blank" >RIV/46747885:24410/18:00006169 - isvavai.cz</a>

Výsledek na webu

<a href="http://journals.sagepub.com/doi/pdf/10.1177/0040517517715085" target="_blank" >http://journals.sagepub.com/doi/pdf/10.1177/0040517517715085</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/0040517517715085" target="_blank" >10.1177/0040517517715085</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fiber-based structures for electromagnetic shielding – comparison of different materials and textile structures

Popis výsledku v původním jazyce

In this study, 32 different electro-conductive fabrics and seven different non-conductive fabrics were taken for an analysis of their electromagnetic shielding ability, electrical resistivity and air permeability. According to the present state of development of electromagnetic shielding textile structures, a diverse set of samples was selected, including stainless steel, copper, silver, aluminum, carbon and polypyrrole as a conductive component. The ASTM D4935 coaxial transmission line method was used to study the electromagnetic shielding and the ASTM D257 ring electrode method was used to evaluate the surface and volume electrical resistivity of all the samples. Air permeability was considered as an additional important parameter for the production of electromagnetic radiation protective fabrics designed for technical or clothing applications. It was confirmed that textile structures made of conventional textile fibers are transparent to an electromagnetic field. The electromagnetic shielding effectiveness of non-conductive samples is less than 0.2 dB regardless of material composition. On the other hand, the electromagnetic shielding effectiveness of electro-conductive samples containing different content and types of conductive component ranges from 1 to 79 dB at the high-frequency range, whereas the woven sample containing 75 wt% of staple metal fiber provides excellent shielding ability together with high air permeability. It was confirmed that, in particular, the surface resistivity can be used to predict the electromagnetic shielding ability of fabric samples due to a strong inverse relationship between these two parameters.

Název v anglickém jazyce

Fiber-based structures for electromagnetic shielding – comparison of different materials and textile structures

Popis výsledku anglicky

In this study, 32 different electro-conductive fabrics and seven different non-conductive fabrics were taken for an analysis of their electromagnetic shielding ability, electrical resistivity and air permeability. According to the present state of development of electromagnetic shielding textile structures, a diverse set of samples was selected, including stainless steel, copper, silver, aluminum, carbon and polypyrrole as a conductive component. The ASTM D4935 coaxial transmission line method was used to study the electromagnetic shielding and the ASTM D257 ring electrode method was used to evaluate the surface and volume electrical resistivity of all the samples. Air permeability was considered as an additional important parameter for the production of electromagnetic radiation protective fabrics designed for technical or clothing applications. It was confirmed that textile structures made of conventional textile fibers are transparent to an electromagnetic field. The electromagnetic shielding effectiveness of non-conductive samples is less than 0.2 dB regardless of material composition. On the other hand, the electromagnetic shielding effectiveness of electro-conductive samples containing different content and types of conductive component ranges from 1 to 79 dB at the high-frequency range, whereas the woven sample containing 75 wt% of staple metal fiber provides excellent shielding ability together with high air permeability. It was confirmed that, in particular, the surface resistivity can be used to predict the electromagnetic shielding ability of fabric samples due to a strong inverse relationship between these two parameters.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/TG01010117" target="_blank" >TG01010117: PROSYKO - Proaktivní systém komercializace na TU v Liberci</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Textile Research Journal

ISSN

0040-5175

e-ISSN

—

Svazek periodika

88

Číslo periodika v rámci svazku

17

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

21

Strana od-do

1992-2012

Kód UT WoS článku

000442666700007

EID výsledku v databázi Scopus

2-s2.0-85045087109