Conductive fillers incorporated with textile materials for the application of electromagnetic interference (EMI) shielding

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F16%3A00004413" target="_blank" >RIV/46747885:24410/16:00004413 - isvavai.cz</a>

Result on the web

<a href="http://www.44trsiitd.com/" target="_blank" >http://www.44trsiitd.com/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Conductive fillers incorporated with textile materials for the application of electromagnetic interference (EMI) shielding

Original language description

The electromagnetic shielding effectiveness of woven samples has higher value than knitted and nonwoven sample. 10% SS woven (W3) has higher SE of 29.5 dB at 1.5 GHz than 10% SS knitted samples (K1 – 8.1 dB, K2 – 8.5 dB) and 10% SS nonwoven sample (N1 – 14.3 dB). Hence, the results of 10% SS samples prove the continuous connectivity of conductive materials in woven sample improve the electromagnetic shielding effect. Carbon woven sample (W1) and aluminum foil samples (M1) are having very high SE of 57.1 dB and 77.6 dB at 1.5 GHz frequency. Aluminum foil has no air permeability because of nonporous structure but higher SE value. Metal content in woven structure improved the air permeability of the samples (W3 and W5) shown in figure 4(a). PPy coated woven sample (W2) has very low air permeability of 73 l/m2/s because of porous region in woven structure is blocked and GSM was increases due to coating. So, the coating of sample is decreases the fabric comfort property by decreasing air permeability. Carbon woven sample has better electromagnetic shielding effectiveness as well as air permeability, woven structures are also better for wearable electromagnetic shielding applications. Knitted samples are having disadvantage of high porous structure and very low conductive material connectivity compare with woven structure. Bulky nonwoven structure also not having continuous connectivity of conductive material was decrease in shielding effectiveness.

Czech name

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Czech description

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Type

O - Miscellaneous

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

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2016

Confidentiality

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