Ultrathin Multilayer Textile Structure with Enhanced EMI Shielding and Air-Permeable Properties

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F21%3A00009547" target="_blank" >RIV/46747885:24410/21:00009547 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4360/13/23/4176/pdf" target="_blank" >https://www.mdpi.com/2073-4360/13/23/4176/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/polym13234176" target="_blank" >10.3390/polym13234176</a>

Result language

angličtina

Original language name

Ultrathin Multilayer Textile Structure with Enhanced EMI Shielding and Air-Permeable Properties

Original language description

A textile material‘s electromagnetic interference (EMI) shielding effectiveness mainly depends on the material‘s electrical conductivity and porosity. Enhancing the conductivity of the material surface can effectively improve the electromagnetic shielding effectiveness. However, the use of highly conductive materials increases production cost, and limits the enhancement of electromagnetic shielding effectiveness. This work aims to improve the EMI shielding effectiveness (EMSE) by using an ultrathin multilayer structure and the air-permeable textile MEFTEX. MEFTEX is a copper-coated non-woven ultrathin fabric. The single-layer MEFTEX SE test results show that the higher its mass per unit area (MEFTEX 30), the better its SE property between 56.14 dB and 62.53 dB in the frequency band 30 MHz-1.5 GHz. Through comparative testing of three groups samples, a higher electromagnetic shielding effect is obtained via multilayer structures due to the increase in thickness and decrease of volume electrical resistivity. Compared to a single layer, the EMI shielding effectiveness of five layers of MEFTEX increases by 44.27-83.8%. Due to its ultrathin and porous structure, and considering the balance from porosity and SE, MEFTEX 10 with three to four layers can still maintain air permeability from 2942 L/m(2)/s-3658 L/m(2)/s.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10404 - Polymer science

Project

<a href="/en/project/EF16_019%2F0000843" target="_blank" >EF16_019/0000843: Hybrid Materials for Hierarchical Structure</a><br>

Continuities

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

Publication year

2021

Confidentiality

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

Name of the periodical

POLYMERS

ISSN

2073-4360

e-ISSN

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Volume of the periodical

13

Issue of the periodical within the volume

23

Country of publishing house

CH - SWITZERLAND

Number of pages

15

Pages from-to

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UT code for WoS article

000734540700001

EID of the result in the Scopus database

2-s2.0-85120357595