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Open AccessArticle

Facile Fabrication of PA66/GO/MWNTs-COOH Nanocomposites and Their Fibers

by Xuefeng Gao 1,2,3, Wenguang Yu 1,2,3, Xianye Zhang 1,2,3, Jiao Zhang 1,2,3, Haihui Liu 1,2,3 and Xingxiang Zhang 1,2,3,*
1
Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage, School of Material Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China
2
Advanced Textile and Composite Key Lab of the Ministry of Education, School of Material Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China
3
School of Material Science and Engineering, Tianjin Polytechnic University, Tianjin 300387, China
*
Author to whom correspondence should be addressed.
Fibers 2019, 7(8), 69; https://doi.org/10.3390/fib7080069
Received: 20 June 2019 / Revised: 19 July 2019 / Accepted: 23 July 2019 / Published: 25 July 2019
(This article belongs to the Special Issue Melt Spinning of Fibers)
Good dispersion and interfacial compatibility are the key issues to realize the full potential of the physical–mechanical properties of nanocarbon-materials reinforced composites. Styrene–maleic-anhydride-copolymer (SMA)-treated graphene oxide (GO), carboxylated multiwalled carbon nanotubes (MWNTs-COOH), and solid-state shear milling (S3M) were applied to further improve the physical–mechanical properties of the nanocomposite fibers. The results show that a mixture of GO/MWNTs-COOH exhibits good dispersion and interfacial compatibility in polyamide-66 (PA66) matrix. Consequently, the physical–mechanical properties of the fibers, which were spun from the nanocomposite of GO/MWNTs-COOH treated using SMA and S3M methods, show a significant enhancement compared to the untreated fibers as well as better crystallization and thermal properties. In particular, the tensile strength of the PA66/GO/MWNTs-COOH nanocomposite fibers with a loading of 0.3 wt % GO/MWNTs-COOH reaches a maximum (979 MPa), which is the highest among all of the reported literature values. Moreover, the fibers were fabricated by a facile process with efficiency, holding great potential for industrial applications. View Full-Text
Keywords: nanocomposite fiber; graphene oxide; multi-walled carbon nanotubes; solid-state shear milling; styrene–maleic anhydride copolymer nanocomposite fiber; graphene oxide; multi-walled carbon nanotubes; solid-state shear milling; styrene–maleic anhydride copolymer
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Gao, X.; Yu, W.; Zhang, X.; Zhang, J.; Liu, H.; Zhang, X. Facile Fabrication of PA66/GO/MWNTs-COOH Nanocomposites and Their Fibers. Fibers 2019, 7, 69.

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