Microwave-synthesized freestanding iron-carbon nanotubes on polyester composites of woven Kevlar fibre and silver nanoparticle-decorated graphene

被引：43
作者：
Hazarika, Ankita [1 ]
Deka, Biplab K. [1 ]
Kim, DoYoung [1 ]
Kong, Kyungil [1 ]
Park, Young-Bin [1 ]
Park, Hyung Wook [1 ]
机构：
[1] Ulsan Natl Inst Sci & Technol, Dept Mech Engn, Ulsan 44919, South Korea
来源：
SCIENTIFIC REPORTS | 2017年 / 7卷
基金：
新加坡国家研究基金会;
关键词：
ENHANCED MECHANICAL-PROPERTIES; SHIELDING EFFECTIVENESS; ELECTRICAL-PROPERTIES; GROWTH; GRAPHITE; EXFOLIATION; NANORIBBON; TENSILE; OXIDE; THIN;
D O I：
10.1038/srep40386
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
We synthesized Ag nanoparticle-decorated multilayered graphene nanosheets (Ag-graphene) from graphite nanoplatelets and silver nitrate through 90-100 s of microwave exposure, without the use of any mineral acids or harsh reducing agents. Fe nanoparticle-decorated carbon nanotubes (Fe-CNTs) were grown on polypyrrole (PPy)deposited on woven Kevlar fibre (WKF), using ferrocene as a catalyst, under microwave irradiation. Fe-CNTs grown on WKF and Ag-graphene dispersed in polyester resin (PES) were combined to fabricate Ag-graphene/Fe-CNT/PPy-coated WKF/PES composites by vacuum-assisted resin transfer moulding. The combined effect of Fe-CNTs and Ag-graphene in the resulting composites resulted in a remarkable enhancement of tensile properties (a 192.56% increase in strength and 100.64% increase in modulus) as well as impact resistance (a 116.33% increase). The electrical conductivity significantly increased for Ag-graphene/Fe-CNT/PPy-coated WKF/PES composites. The effectiveness of electromagnetic interference shielding, which relies strongly on the Ag-graphene content in the composites, was 25 times higher in Ag-graphene/Fe-CNT/PPy-coated WKF/PES than in neat WKF/PES composites. The current work offers a novel route for fabricating highly promising, cost effective WKF/PES composites through microwave-assisted synthesis of Fe-CNTs and Ag-graphene.
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页数：11
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