期刊
RSC ADVANCES
卷 8, 期 30, 页码 16947-16956出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ra02835d
关键词
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资金
- National Natural Science Foundations of China [51705511]
- Zhejiang Provincial Natural Science Foundation of China [Z17E050016]
- State Grid Zhejiang Electric Power Corporation science and technology project [5211NB16000F]
- Zhejiang Postdoctoral Science Foundation of China
Attapulgite is a layered silicate with good friction-reduction and self-repairing properties. In order to further improve its tribological properties, the present work mainly focuses on the preparation of attapulgite/La2O3 nanocomposite and study on its tribological behaviors. The tribological properties of mineral lubricating oil (150SN) containing attapulgite/La2O3 nanocomposite were investigated through an Optimal SRV-IV oscillating friction and wear tester. The rubbing surfaces and generated tribofilms were characterized by SEM, EDS, XPS and nanoindentation. Results indicated that the friction-reducing ability and antiwear property of the oil were both remarkably improved by attapulgite/La2O3 nanocomposite. A tribofilm mainly composed of Fe, Fe3C, FeO, Fe2O3 , FeOOH, SiO, SiO2 and organic compound was formed on the rubbing surface under the lubrication of oil with attapulgite/La2O3 nanocomposite. The tribofilm possess excellent self-lubricating ability and mechanical properties, which is responsible for the reduction of friction and wear.
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