期刊
POLYMERS FOR ADVANCED TECHNOLOGIES
卷 32, 期 8, 页码 3150-3159出版社
WILEY
DOI: 10.1002/pat.5327
关键词
friction and wear performance; nanosilica content; PEEK; CF; nanosilica composites
资金
- Deutsche Forschungsgemeinschaft [SCHL 280/33-1]
The study found that the content of silica nanoparticles significantly affects the friction and wear properties of PEEK/CF/nanosilica composites. Under low-load conditions, the friction coefficient decreases with increasing nanofiller content, while the specific wear rate increases with enhancing nanosilica loading. However, under high-load conditions, the differences in tribological properties become insignificant, showing less dependence on nanosilica loading.
In the present study, tribological properties of PEEK/CF/nanosilica composites with distinct amounts of silica nanoparticles against steel were studied by using a block-on-ring tribometer followed by the characterizations of associated transfer films and polymer worn surfaces. The results demonstrate that the content of silica nanoparticles exerts an obvious influence on the friction and wear properties of PEEK/CF/nanosilica composites. Under low-load conditions, the friction coefficient and specific wear rate exhibit opposite dependence on the nanosilica content. The friction coefficient decreases with increasing nanofiller content, while the specific wear rate increases with enhancing nanosilica loading. When the load conditions were changed toward high values, the divergence of the tribological properties becomes insignificant, which show less dependence on the nanosilica loading. Taking into account the practical applications of such composites, the composite containing 2 wt.% silica nanoparticles can serve as an excellent candidate for manufacturing tribological components in the practical applications.
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