期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 129, 期 -, 页码 137-145出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2016.04.022
关键词
Aramid fiber; Hybrid composites; Mechanical properties; Electrical conductivity; Iron-carbon nanotubes nanostructure
资金
- UNIST (Ulsan National Institute of Science and Technology) [1.160005.01]
- Mid-career Researcher Program through the National Research Foundation of Korea (NRF) - Ministry of Education [2015R1A2A2A01005499]
Iron-carbon nanotube (Fe-CNT) nanostructures were synthesized in 15-30 s through the microwave irradiation of woven Kevlar (R) fibers (WKF5) deposited with either polypyrrole (PPy) or polypyrrole/graphene oxide (GO). Microwave-induced growth of Fe-CNT on the base fibers is a simple technique and has not been previously reported using WKF as a substrate. This method of forming composites avoids the difficulties associated with obtaining a homogeneous dispersion of CNT in a surrounding matrix material. Iron-decorated CNT5 were synthesized on WKF and polyester resin (PES) via vacuum-assisted resin transfer molding. Substantial improvements in tensile strength (upto 122.57%) and moduli (upto 89.82%) were observed for Fe-CNT5 grown on the WKF/PES composites. The impact response and in-plane shear strength were also significantly enhanced compared to bare WKF/PES composites. In situ polymerization of pyrrole on WKF altered the electrically insulating behavior of Kevlar, creating a conductive material. Fe-CNT/PPy-coated WKF/PES exhibited the highest electrical conductivity. This proposed approach for growing Fe-CNTs constitutes a novel and economical means of developing high-performance WKF/CNT composites with enhanced mechanical properties and electrical conductivity. (C) 2016 Elsevier Ltd. All rights reserved.
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