Revealing the lubrication mechanism of fluorographene nanosheets enhanced GTL-8 based nanolubricant oil
| Autor: | Xiaojing Ci, Jun Luo, Lu Shen, Zhiwen Fang, Wenjie Zhao, Tianhao Ge, Yangmin Wu, Xiulei Gao |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Graphene Mechanical Engineering Base oil 02 engineering and technology Surfaces and Interfaces Tribology 021001 nanoscience & nanotechnology Surface energy Surfaces Coatings and Films law.invention 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Transmission electron microscopy law Lubrication Composite material 0210 nano-technology Coefficient of friction Fluorographene |
| Zdroj: | Tribology International. 138:174-183 |
| ISSN: | 0301-679X |
| DOI: | 10.1016/j.triboint.2019.05.044 |
| Popis: | Fluorographene could be used as lubricating additive which is attributed to its high mechanical strength and unique layered structures. However, it is difficult to disperse fluorographene uniformly in base oil due to its low surface energy. Here, we formulated multilayered fluorographene nanosheets (FGi) by fluorinating graphene and then exfoliated the FGi using chloroform to obtain fluorographene (FG). Tribological results indicated that the coefficient of friction and the wear rate of GTL-8 nanolubricant oil enhanced with 0.3 mg/ml FG were decreased by 35% and 90%. Combining Transmission Electron Microscope images and X-ray photoelectron spectra, it is illustrated that physical transferred film and tribochemical film were generated which were beneficial for the excellent tribological performances of GTL-8 based oil enhanced via FG. |
| Databáze: | OpenAIRE |
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