Tribological behavior and energy dissipation characteristics of nano-Al2O3-reinforced PTFE-PPS composites in sliding system

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-Al 2 O 3 -reinforced polytetrafluoroethylene-polyphenylene sulfide (PTFE-PPS) composites in a sl...

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Bibliographic Details
Published in:Journal of Central South University 2017-09, Vol.24 (9), p.2001-2009
Main Authors: Cao, Wen-han, Gong, Jun, Yang, Dong-ya, Gao, Gui, Wang, Hong-gang, Ren, Jun-fang, Chen, Sheng-sheng
Format: Article
Language:English
Subjects:
Aluminum oxide
Concentration (composition)
Energy dissipation
Engineering
Metallic Materials
Polyphenylene sulfides
Polytetrafluoroethylene
Sliding
Tribology
Wear mechanisms
Wear rate
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Summary: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-Al 2 O 3 -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-Al 2 O 3 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-Al 2 O 3 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-Al 2 O 3 content, independent of the normal load applied.
ISSN:2095-2899
2227-5223
DOI:10.1007/s11771-017-3609-3