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Friction 2023, 11(9): 1660-1672 https://doi.org/10.1007/s40544-022-0673-y
Research Article | Open Access | Issue | Published: 10 March 2023

MoS2 reinforced PEEK composite for improved aqueous boundary lubrication

Show Author's Information Xin HOU,  Pengpeng BAI,  Jingyang LI,  Yuanzhe LI,  Hui CAO,  Xiangli WEN,  Yonggang MENG,  Liran MA( ),  Yu TIAN( )
State Key Laboratory of Tribology in Advanced Equipment, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China
Keywords:
boundary lubrication, MoS2, aqueous lubrication, anti-wear performance, polyether-etherketone (PEEK) composite
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HOU X, BAI P, LI J, et al. MoS2 reinforced PEEK composite for improved aqueous boundary lubrication. Friction, 2023, 11(9): 1660-1672. https://doi.org/10.1007/s40544-022-0673-y
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Abstract Full text Electronic supplementary material About this article

Polyether-etherketone (PEEK) is a corrosion-resistant material that has been widely used in aqueous lubrication. However, its anti-wear performance must be improved for its application in the industry. In this study, to improve the anti-wear performance of PEEK for aqueous boundary lubrication, PEEK/MoS2 composites were prepared by ball-milling and spark plasma sintering processes. A competitive MoS2 mechanism between the low shear strength property and the role of promoting wear debris generation influences the anti-wear performance of PEEK/MoS2 composites. Experiments demonstrated that the coefficients of friction (COF) and wear rate of PEEK composite with 0.25 wt% MoS2 were significantly reduced 68% and 94%, respectively. Furthermore, this was the first time that a PEEK composite could achieve a COF of less than 0.05 in aqueous boundary lubrication. Its anti-wear performance was verified to be better than that of PEEK/carbon fiber (CF) and Thordon composites. The PEEK/MoS2 composite may be a potential material for underwater equipment because of its outstanding anti-wear performance in aqueous boundary lubrication.


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About this article

MoS2 reinforced PEEK composite for improved aqueous boundary lubrication

Show Author's information Xin HOU, Pengpeng BAI, Jingyang LI, Yuanzhe LI, Hui CAO, Xiangli WEN, Yonggang MENG, Liran MA( ), Yu TIAN( )
State Key Laboratory of Tribology in Advanced Equipment, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China

Abstract

Polyether-etherketone (PEEK) is a corrosion-resistant material that has been widely used in aqueous lubrication. However, its anti-wear performance must be improved for its application in the industry. In this study, to improve the anti-wear performance of PEEK for aqueous boundary lubrication, PEEK/MoS2 composites were prepared by ball-milling and spark plasma sintering processes. A competitive MoS2 mechanism between the low shear strength property and the role of promoting wear debris generation influences the anti-wear performance of PEEK/MoS2 composites. Experiments demonstrated that the coefficients of friction (COF) and wear rate of PEEK composite with 0.25 wt% MoS2 were significantly reduced 68% and 94%, respectively. Furthermore, this was the first time that a PEEK composite could achieve a COF of less than 0.05 in aqueous boundary lubrication. Its anti-wear performance was verified to be better than that of PEEK/carbon fiber (CF) and Thordon composites. The PEEK/MoS2 composite may be a potential material for underwater equipment because of its outstanding anti-wear performance in aqueous boundary lubrication.

Keywords: boundary lubrication, MoS2, aqueous lubrication, anti-wear performance, polyether-etherketone (PEEK) composite

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Received: 03 March 2022
Revised: 10 June 2022
Accepted: 30 June 2022
Published: 10 March 2023
Issue date: September 2023

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© The author(s) 2022.

Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Grant No. 51425502).

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