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The Synergistic Effect of WS(2) and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions

To adapt to the complex application of polyurethane bearings, it is feasible to improve the tribological performance of single polyurethane-based friction materials through the synergistic effect produced by multi-component-lubricating fillers. In this context, rather than using tungsten disulfide (...

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Autores principales: Lu, Gang, Shuai, Changgeng, Liu, Yinsong, Yang, Xue, Hu, Xiaoyang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9028102/
https://www.ncbi.nlm.nih.gov/pubmed/35457973
http://dx.doi.org/10.3390/nano12081267
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author Lu, Gang
Shuai, Changgeng
Liu, Yinsong
Yang, Xue
Hu, Xiaoyang
author_facet Lu, Gang
Shuai, Changgeng
Liu, Yinsong
Yang, Xue
Hu, Xiaoyang
author_sort Lu, Gang
collection PubMed
description To adapt to the complex application of polyurethane bearings, it is feasible to improve the tribological performance of single polyurethane-based friction materials through the synergistic effect produced by multi-component-lubricating fillers. In this context, rather than using tungsten disulfide (WS(2)), which has demonstrated excellent self-lubricating performance as a lubricating oil additive, this paper proposes that WS(2) and single-walled carbon nanotubes (SWNTs) can be designed for addition into a polyether 4,4′-diphenylmethane diisocyanate (MDI) polyurethane matrix as self-lubricating fillers so as to explore the synergistic effect of micro- and nano-lubricating fillers on the tribological performance of polyurethane matrix materials. Through a series of characterizations and tests, it was found that the dispersion of two-component-lubricating additives in a polyurethane matrix is improved when the ratio of WS(2) to SWNTs is roughly 2:1. In this case, the tribological performance of polyurethane matrix composites is more satisfactory than at other ratios. In addition, compared with the blank sample, the tribological performance of the synergistically modified polyurethane composites under dry friction is more significantly improved with the increase in contact load, while there is no significant improvement under water lubrication. Aside from contributing to the idea of exploring the synergistic effect of WS(2) and other micro or nanofillers, this method also opens up the possibility of practically applying WS(2) in the field of friction.
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spelling pubmed-90281022022-04-23 The Synergistic Effect of WS(2) and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions Lu, Gang Shuai, Changgeng Liu, Yinsong Yang, Xue Hu, Xiaoyang Nanomaterials (Basel) Article To adapt to the complex application of polyurethane bearings, it is feasible to improve the tribological performance of single polyurethane-based friction materials through the synergistic effect produced by multi-component-lubricating fillers. In this context, rather than using tungsten disulfide (WS(2)), which has demonstrated excellent self-lubricating performance as a lubricating oil additive, this paper proposes that WS(2) and single-walled carbon nanotubes (SWNTs) can be designed for addition into a polyether 4,4′-diphenylmethane diisocyanate (MDI) polyurethane matrix as self-lubricating fillers so as to explore the synergistic effect of micro- and nano-lubricating fillers on the tribological performance of polyurethane matrix materials. Through a series of characterizations and tests, it was found that the dispersion of two-component-lubricating additives in a polyurethane matrix is improved when the ratio of WS(2) to SWNTs is roughly 2:1. In this case, the tribological performance of polyurethane matrix composites is more satisfactory than at other ratios. In addition, compared with the blank sample, the tribological performance of the synergistically modified polyurethane composites under dry friction is more significantly improved with the increase in contact load, while there is no significant improvement under water lubrication. Aside from contributing to the idea of exploring the synergistic effect of WS(2) and other micro or nanofillers, this method also opens up the possibility of practically applying WS(2) in the field of friction. MDPI 2022-04-08 /pmc/articles/PMC9028102/ /pubmed/35457973 http://dx.doi.org/10.3390/nano12081267 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Lu, Gang
Shuai, Changgeng
Liu, Yinsong
Yang, Xue
Hu, Xiaoyang
The Synergistic Effect of WS(2) and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions
title The Synergistic Effect of WS(2) and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions
title_full The Synergistic Effect of WS(2) and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions
title_fullStr The Synergistic Effect of WS(2) and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions
title_full_unstemmed The Synergistic Effect of WS(2) and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions
title_short The Synergistic Effect of WS(2) and SWNTs on Tribological Performance of Polyether MDI Polyurethane Elastomer under Dry and Wet Friction Conditions
title_sort synergistic effect of ws(2) and swnts on tribological performance of polyether mdi polyurethane elastomer under dry and wet friction conditions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9028102/
https://www.ncbi.nlm.nih.gov/pubmed/35457973
http://dx.doi.org/10.3390/nano12081267
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