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Wet-Spinning Assembly of Continuous, Highly Stable Hyaluronic/Multiwalled Carbon Nanotube Hybrid Microfibers

1,2,†, 1,†, 3,†, 4, 1, 1, 1,5,*, 1,* and 2,*
1
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
2
College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
3
AVIC Aero Polytechnology Establishment, Beijing 100028, China
4
College of Light Industry and Textile, Qiqihar University, Qiqihar 161000, China
5
School of Chemistry and Chemical Engineering, Jinggangshan University, Ji’an 343009, China
*
Authors to whom correspondence should be addressed.
These authors are equally contribution to this work.
Polymers 2019, 11(5), 867; https://doi.org/10.3390/polym11050867
Received: 22 March 2019 / Revised: 4 May 2019 / Accepted: 5 May 2019 / Published: 13 May 2019
(This article belongs to the Special Issue Carbon-Based Polymer Nanocomposites for High-Performance Applications)
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Abstract

Effective multiwalled carbon nanotube (MWCNT) fiber manufacturing methods have received a substantial amount of attention due to the low cost and excellent properties of MWCNTs. Here, we fabricated hybrid microfibers composed of hyaluronic acid (HA) and multiwalled carbon nanotubes (MWCNTs) by a wet-spinning method. HA acts as a biosurfactant and an ionic crosslinker, which improves the dispersion of MWCNTs and helps MWCNT to assemble into microfibers. The effects of HA concentration, dispersion time, injection speed, and MWCNT concentration on the formation, mechanical behavior, and conductivity of the HA/MWCNT hybrid microfibers were comprehensively investigated through SEM, UV-Vis spectroscopy, tensile testing, and conductivity testing. The obtained HA/MWCNT hybrid microfibers presented excellent tensile properties in regard to Young’s modulus (9.04 ± 1.13 GPa) and tensile strength (130.25 ± 10.78 MPa), and excellent flexibility and stability due to the superior mechanical and electrical properties of MWCNTs. This work presents an effective and easy-to-handle preparation method for high-performance MWCNT hybrid microfibers assembly, and the obtained HA/MWCNT hybrid microfibers have promising applications in the fields of energy storage, sensors, micro devices, intelligent materials, and high-performance fiber-reinforced composites. View Full-Text
Keywords: multiwalled carbon nanotube; hyaluronic acid; microfibers; wet-spinning; microstructures; tensile properties multiwalled carbon nanotube; hyaluronic acid; microfibers; wet-spinning; microstructures; tensile properties
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Zheng, T.; Xu, N.; Kan, Q.; Li, H.; Lu, C.; Zhang, P.; Li, X.; Zhang, D.; Wang, X. Wet-Spinning Assembly of Continuous, Highly Stable Hyaluronic/Multiwalled Carbon Nanotube Hybrid Microfibers. Polymers 2019, 11, 867.

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