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Tribological behavior and film-forming mechanism of a polytetrafluoroethylene/polyester fabric composite

Juan Wang (State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China)
Xiongrong Huang (Technology Department, Shanghai Bearing Technology Research Institute, Shanghai, China)
Wei Wang (Technology Department, Shanghai Bearing Technology Research Institute, Shanghai, China)
Haosheng Han (Technology Department, Shanghai Bearing Technology Research Institute, Shanghai, China)
Hongyu Duan (Technology Department, Shanghai Bearing Technology Research Institute, Shanghai, China)
Senlong Yu (State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China)
Meifang Zhu (State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 10 January 2022

Issue publication date: 21 January 2022

198

Abstract

Purpose

The purpose of this study is to determine the tribological behavior and wear mechanism of a polytetrafluoroethylene (PTFE)/polyester (PET) fabric composite for application as a self-lubricating liner suitable for high-speed and low-load friction conditions.

Design/methodology/approach

The effects of different loads and sliding speeds on the friction coefficients and wear characteristics of the composite were studied using reciprocating friction tests. Scanning electron microscopy, extended depth-of-field microscopy, and energy-dispersive X-ray spectrometry was used to analyze the worn surface morphology, wear depth and elemental content of the lubrication films, respectively.

Findings

The friction coefficient curves of the composites presented a long-term steady wear stage under different sliding conditions. With increasing sliding speed, the friction coefficient and wear depth of the composite slowly increased. The film-forming mechanism of the composite revealed that the PTFE/PET ply yarn on the composite surface formed complete PTFE lubrication films at the initial sliding stage.

Originality/value

The PTFE/PET fabric composite maintained good friction stability and high-speed adaptability, which demonstrates that the composite has broad application prospects as a highly reliable self-lubricating bearing liner with a long lifespan.

Keywords

Acknowledgements

This research was sponsored by Shanghai Sailing Program (No. 20YF1400900). The authors are grateful for the support.

Citation

Wang, J., Huang, X., Wang, W., Han, H., Duan, H., Yu, S. and Zhu, M. (2022), "Tribological behavior and film-forming mechanism of a polytetrafluoroethylene/polyester fabric composite", Industrial Lubrication and Tribology, Vol. 74 No. 1, pp. 65-72. https://doi.org/10.1108/ILT-07-2021-0246

Publisher

:

Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited

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