少层石墨烯负载纳米SiO<sub>2</sub>复合材料对水润滑性能的影响

doi:10.11896/j.issn.1005-023X.2018.24.005

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Abstract Graphene-based with SiO₂ nanocomposite materials were prepared by the melthod of liquid-phase ultrasonic exfoliation. Morphologies of nanocomposite materials were characterized by means of TEM. their tribological properties as a pure water additive were investigated using multi-functional reciprocating friction and wear tester. The morphology, elemental composition and chemical states of typical elements were analyzed by SEM and XPS. The lubrication mechanism of graphene-loaded with SiO₂ nanocomposites in water was preliminarily discussed. The results showed that the nano SiO₂ evenly distributed in the few layer graphene layer and surface layer; the nanocomposite materials as a pure water additive displayed good friction-reducing and antiwear perfor-mance. The prosperity was attributed to the synergistic effect of the self-repairing effect of nano SiO₂ and friction chemical reaction film formed on the worn surface by graphene-loaded with SiO₂ nanocomposite which inhibited oxidation of Fe and repaired the wear surface, that reduced friction and wear on the frictional surface.

Key words： graphene silicon dioxide composite materials lubrication performance wear mechanism

Published: 23 January 2019

CLC number:

TQ174

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	Articles by authors
	ZHANG Shitang
	ZHAO Haichao
	QIAO Yulin

Cite this article:

ZHANG Shitang,ZHAO Haichao,QIAO Yulin. Effect of Less Graphene-based SiO₂ Nanocomposite Materials on Water Lubricity Properties[J]. Materials Reports, 2018, 32(24): 4235-4239.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.24.005 OR http://www.mater-rep.com/EN/Y2018/V32/I24/4235

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