首页|Ultralow friction PTFE/PEEK heterolayer:A new solid lubrication approach toward simplicity

Ultralow friction PTFE/PEEK heterolayer:A new solid lubrication approach toward simplicity

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Tribological applications of polytetrafluoroethylene(PTFE)are often limited by technological complexity to overcome its poor wear resistance.Here,a PTFE/polyetheretherketone(PEEK)heterolayer(HL)was proposed and evaluated as a new solid lubrication solution.Pin-on-disk tribometry found the lowest friction coefficient(μ)of 0.031 and ultralow wear for the PEEK/HL under typical conditions.The friction coefficient of the HL surpasses those of the state-of-the-art polymeric coatings/composites by at least 200%,and approaches that of highly lubricated interfaces.Mechanistic investigations revealed multi-length physical and chemical heterogeneity of the HL that best facilitates a tribofilm with high subsurface stability and surface instability.The technological simplicity and robustness of the HL's high lubricity make it a promising new type of solid lubrication toward greater reliability and longevity.

ultralow frictionanti-wearpolytetrafluoroethylene(PTFE)heterolayer(HL)

Wei SUN、Jiaxin YE、Qingrui SONG、Yi FENG、Xiaojun LIU

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School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,China

Institute of Tribology,School of Mechanical Engineering,Hefei University of Technology,Hefei 230009,China

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities

5187515351875152JZ2021HGPA0062

2024

10.1007/s40544-023-0747-9

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摩擦(英文)

CSTPCD北大核心EI
ISSN：2223-7690
年,卷(期)：2024.12(1)
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