Trilayered Film with Excellent Tribological Performance: A Combination of Graphene Oxide and Perfluoropolyethers
| Autor: | Jianning Ding, Lvzhou Li, Yuanyuan Zhu, Joseph C. Cremaldi, Ying Wang, Ningyi Yuan, Noshir S. Pesika, Haiyang Ji |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Graphene Mechanical Engineering Oxide Nanotechnology Surfaces and Interfaces Substrate (electronics) Surfaces Coatings and Films law.invention Contact angle symbols.namesake chemistry.chemical_compound Chemical engineering chemistry X-ray photoelectron spectroscopy Mechanics of Materials law Monolayer Triethoxysilane symbols Raman spectroscopy |
| Zdroj: | Tribology Letters. 60 |
| ISSN: | 1573-2711 1023-8883 |
| DOI: | 10.1007/s11249-015-0618-y |
| Popis: | In the current paper, trilayered films (abridged as APS-GO/PFPE) composed of graphene oxide (GO) and perfluoropolyethers (PFPE) were fabricated successfully on the silicon substrate pre-modified with a self-assembled monolayer of 3-aminopropyl triethoxysilane. The so-prepared films were characterized by a range of complementary techniques including Raman spectroscopy, contact angle measurements, X-ray photoelectron spectroscopy, and atomic force microscopy, to reveal the surface chemical compositions and surface morphologies. Furthermore, the microtribological behavior of the so-prepared films was studied on a ball-on-plate tribometer. The APS-GO/PFPE film showed better friction-reducing and wear-resisting properties as compared with the control samples, which was ascribed to the excellent wear-resisting properties of GO and the excellent lubricating nature and low shear strength of PFPE. |
| Databáze: | OpenAIRE |
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