Abstract
Nanoparticles are increasingly being used to improve the friction and wear performance of polymers. In this study, we investigated the tribological behavior and energy dissipation characteristics of nano-Al2O3-reinforced polytetrafluoroethylene-polyphenylene sulfide (PTFE-PPS) composites in a sliding system. The tribological behaviors of the composites were evaluated under different normal loads (100–300 N) at a high linear velocity (2 m/s) using a block-on-ring tester. Addition of the nano-Al2O3 filler improved the antiwear performance of the PTFE-PPS composites, and the friction coefficient increased slightly. The lowest wear rate was obtained when the nano-Al2O3 content was 3% (volume fraction). Further, the results indicated a linear correlation between wear and the amount of energy dissipated, even though the wear mechanism changed with the nano-Al2O3 content, independent of the normal load applied.
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Foundation item: Project(51165022) supported by the National Natural Science Foundation of China; Project(20122117) supported by the Lanzhou Science and Technology Bureau Foundation, China; Project(1310RJZA036) supported by the Natural Science Foundation of Gansu Province, China
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Cao, Wh., Gong, J., Yang, Dy. et al. Tribological behavior and energy dissipation characteristics of nano-Al2O3-reinforced PTFE-PPS composites in sliding system. J. Cent. South Univ. 24, 2001–2009 (2017). https://doi.org/10.1007/s11771-017-3609-3
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DOI: https://doi.org/10.1007/s11771-017-3609-3