氧等离子体处理碳纳米管对剪切增稠液增强芳纶织物防刺性能的影响

doi:10.11896/cldb.19070190

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Abstract To improve the stab resistance of Kevlar fabrics and realize the lightweight of protective garments, in this study, stab-resistance material was fabricated by Kevlar woven fabrics impregnated in shear thickening fluid (STF) contained oxygen-plasma modified multi-walls carbon nanotubes (M-MWNTs). The influence of M-MWNTs on the quasi-static stab resistant performance of STF impregnated Kevlar woven fabrics was investigated. The M-MWNTs, the rheological property of M-MWNT/STF, the surface morphology, yarn pull-out force and spike and knife stab performance of M-MWNT/STF/Kevlar fabrics were characterized by Raman spectroscopy, Malvin rotational rheometer, scanning electron microscopy (SEM) and Instron 5969 machine. After oxygen-plasma treatment, the content of sp³ hybrid carbon increased, indicating the oxygen-containing functional groups were grafted onto the MWNTs. The rheological tests showed that addition of 0.06wt% M-MWNTs caused a marked increase in the peak viscosity from 1 563 Pa·s to 3 417 Pa·s and a decrease in the critical shear rate from 14.68 s^-1 to 2.53 s^-1. The yarn pul-lout test showed that the yarn friction of M-MWNT/STF/Kevlar fabrics was far superior to the original fabrics. Under similar areal density, the 0.06wt% M-MWNT/STF/Kevlar fabrics could resist 972.2 N of quasi-static spike and 949.9 N of knife stab force, which were 198.1% and 260% higher than the neat Kevlar fabrics. These results revealed that the oxygen-containing MWNTs could promote the shear thickening effect of STF and increase the friction between yarns that made fabrics failure mode change from yarn slip to yarn breakage, resulting in the improvement of the stab-resistance of M-MWNT/STF/Kevlar fabrics.

Key words： multi-walls carbon nanotubes oxygen-plasma treatment shear thickening fluid Kevlar fabric stab resistant performance

Published: 12 September 2020

CLC number:

T322

Fund:This work was financially supported by the National Natural Science Foundation of China (11602168), Tianjin Science Committee Key Project (15ZXLCSY00040).

About author:: Rui Wangis a professor and doctor supervisor of Tiangong University. In 1988, he graduated from Tohoku University of Japan with a doctorate in materials processing engineering. After that, he worked as a short-term postdoctoral researcher at Miyagi University of Education and a senior research scholar at Shinshu University. He has undertaken and completed more than 30 projects entrusted by the Ministry of Education, Tianjin, Sinopec and enterprises. He has published 185 academic papers in various important domestic and international acade-mic conferences, including EI, SCI and ISTP (60). The main research directions of the team include: Natural fiber composite materials; Pipe repair composite materials; Cryogenic protective textile materials; Functional and intelligent textile protective materials.
Danyang Liis a doctor candidate in textile science and engineering at Tiangong University. Her research inte-rests focus on shear thickening fluid and flexible stab resistance materials.

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	WANG Rui
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	LIU Xing
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	XIONG Weicheng

Cite this article:

WANG Rui,LI Danyang,LIU Xing, et al. Effect of Oxygen-plasma-modified Carbon Nanotubes on the Stab Resistance of Shear Thickening Fluid Impregnated Kevlar Fabrics[J]. Materials Reports, 2020, 34(18): 18188-18193.

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http://www.mater-rep.com/EN/10.11896/cldb.19070190 OR http://www.mater-rep.com/EN/Y2020/V34/I18/18188

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