Investigation of the stab resistance mechanism and performance of uncoated and SiO2 coated high-performance aramid fabrics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24410%2F22%3A00010523" target="_blank" >RIV/46747885:24410/22:00010523 - isvavai.cz</a>

Result on the web

<a href="https://www.tandfonline.com/doi/full/10.1080/00405000.2021.1972630" target="_blank" >https://www.tandfonline.com/doi/full/10.1080/00405000.2021.1972630</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/00405000.2021.1972630" target="_blank" >10.1080/00405000.2021.1972630</a>

Result language

angličtina

Original language name

Investigation of the stab resistance mechanism and performance of uncoated and SiO2 coated high-performance aramid fabrics

Original language description

Surface coatings on the fabrics can enhance protective properties of flexible body armors. It is known that the application of coating increases inter yarn friction, however, detailed mechanism of knife-yarn interaction in coated and uncoated fabrics is not fully understood yet. This study investigates in detail the knife-yarn interaction at individual yarn level and role of improved inter yarn friction in enhanced stab resistance of woven aramid fabrics deposited with SiO2 coating. The coated fabric exhibited an increase of 115% in the knife penetration resistance compared with uncoated fabric due to increase in inter yarn friction. The coefficient of friction increased 29% after coating. The video graphicanalysis performed during quasi static stab resistance revealed important insights into the knife to yarn interactions. The filaments within the yarn in the uncoated fabric interact individually with the knife, undergo sequential cutting of filaments and offer less resistance to knife penetration. On the other hand, filaments within the yarn in the coated fabric were found to interact collectively, as cohesive assembly of fibers, undergo simultaneous cutting offering greater resistance to the penetrating knife. The results of yarn pull out, yarn sliding, single yarn cut resistance and single yarn strength tests confirmed that improvement in the stab resistance was attributed mainly to the increased inter yarn friction after coating the fabric while intrinsic properties of the yarn were not altered. The findings of this study will be helpful in the development of protective clothing with improved stab resistance.

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

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

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Name of the periodical

Journal of The Textile Institute

ISSN

0040-5000

e-ISSN

—

Volume of the periodical

113

Issue of the periodical within the volume

10

Country of publishing house

GB - UNITED KINGDOM

Number of pages

16

Pages from-to

2143-2158

UT code for WoS article

000693273100001

EID of the result in the Scopus database

2-s2.0-85114427857