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Park, Young-Bin
Functional Intelligent Materials Lab (FIMLab)
Research Interests
  • Composites

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Microwave absorption and mechanical performance of α-MnO2 nanostructures grown on woven Kevlar fiber/reduced graphene oxide-polyaniline nanofiber array-reinforced polyester resin composites

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Title
Microwave absorption and mechanical performance of α-MnO2 nanostructures grown on woven Kevlar fiber/reduced graphene oxide-polyaniline nanofiber array-reinforced polyester resin composites
Author
Hazarika, AnkitaDeka, Biplab K.Kong, KyungilKim, DoYoungNam, Young-WooChoi, Jae-HunKim, Chun-GonPark, Young-BinPark, Hyung Wook
Keywords
Aramid fibres; Nano-structures; Mechanical properties; Microwave absorption properties
Issue Date
201805
Publisher
ELSEVIER SCI LTD
Citation
COMPOSITES PART B-ENGINEERING, v.140, no., pp.123 - 132
Abstract
Various morphologies of α-MnO2 nanostructures were synthesized on the surface of woven Kevlar fiber (WKF) by hydrothermal method under different reaction conditions. Reduced graphene oxide-polyaniline nanofiber (RGO-PANI) arrays were synthesized by an in situ dilute polymerization technique and then dispersed within polyester (PES) resin. High-performance composites based on α-MnO2-grown WKF and RGO-PANI array-dispersed PES were fabricated with effective microwave-absorbing and mechanical properties by vacuum-assisted resin transfer molding (VARTM). WKF/MnO2 nanofibers/PES/PANI-RGO (2%) composites showed superior electromagnetic parameters in the frequency range of 1–18 GHz. The reflection loss (RL) of WKF/MnO2 nanofibers/PES/PANI-RGO (2.0%) was −36.5 dB at an absorbing frequency of 11.8 GHz, which has not been reported before. A higher tensile strength (160.12%), modulus (104.43%), and absorbed impact energy (207%) were observed for α-MnO2 nanofibers, compared with other morphologies of α-MnO2-incorporated WKF composites and the properties were enhanced with an increased percentage of PANI-RGO.
URI
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DOI
http://dx.doi.org/10.1016/j.compositesb.2017.12.003
ISSN
1359-8368
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