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Research Article | Open Access

Friction and wear behaviors of MoS2-multi-walled-carbon-nanotube hybrid reinforced polyurethane composite coating

Zhaozhu ZHANG1( ), Mingming YANG1, Junya YUAN1,2, Fang GUO1, Xuehu MEN3( )
State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
University of Chinese Academy of Sciences, Beijing 100039, China
School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
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Abstract

MoS2-multi-walled-carbon-nanotube (MWCNT) hybrids containing two-dimensional MoS2 and one-dimensional MWCNTs were synthesized through a one-step hydrothermal reaction. X-ray-diffraction and transmission-electron-microscopy results demonstrated that MoS2 nanosheets were successfully synthesized, and uniformly anchored on the MWCNTs' surfaces. Furthermore, the effects of the MoS2-MWCNT hybrids on the tribological performances of polyurethane composite coatings were investigated using a UMT-2MT tribo-tester. Friction and wear test results revealed that the friction coefficient and wear rate of a 3 wt% MoS2-MWCNT-1 filled polyurethane composite coating were reduced by 25.6% and 65.5%, respectively. The outstanding tribological performance of the MoS2-MWCNT-1 reinforced polyurethane composite coating was attributed to the excellent load-carrying capacity of the MWCNTs and good lubricant ability of MoS2. The surface morphologies of the worn surfaces and counterpart ball surfaces were investigated to reveal the wear mechanisms.

Keywords

adhesioncoatingfrictionwearpolyurethane

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Friction
Volume 7 Issue 4,
August 2019
Pages 316-326
DOI: 10.1007/s40544-018-0214-x

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Cite this article:
ZHANG Z, YANG M, YUAN J, et al. Friction and wear behaviors of MoS2-multi-walled-carbon-nanotube hybrid reinforced polyurethane composite coating. Friction, 2019, 7(4): 316-326. https://doi.org/10.1007/s40544-018-0214-x

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Received: 21 September 2017
Revised: 26 October 2017
Accepted: 09 March 2018
Published: 28 July 2018
© The author(s) 2018

This article is published with open access at Springerlink.com

Open Access: The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http:// creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.