Bio-inspired incorporation of functionalized graphene oxide into carbon nanotube fibers for their efficient mechanical reinforcement

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An efficient strategy for the enhancement of mechanical properties of carbon nanotube (CNT) fibers is developed using functionalized graphene oxide with a quaternary ammonium (QA) group (QA-FGO). QA-FGO is designed to induce the p-cation interaction, one of the strongest interactions in living systems, with CNT fibers. Based on the strategy, the tensile strength (58 MPa), specific strength (0.49 N/tex), modulus (2.5 GPa) and toughness (1.1 MJ/m(3)) of CNT fibers are enhanced to 409 MPa, 0.65 N/tex, 13.4 GPa, and 10.1 MJ/m(3), respectively. The reinforcement mechanism is systematically demonstrated with experimental and theoretical approaches.
Publisher
ELSEVIER SCI LTD
Issue Date
2019-09
Language
English
Article Type
Article
Citation

COMPOSITES SCIENCE AND TECHNOLOGY, v.181

ISSN
0266-3538
DOI
10.1016/j.compscitech.2019.107680
URI
http://hdl.handle.net/10203/265544
Appears in Collection
CH-Journal Papers(저널논문)
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