The Preparation and Tribological Property Investigation of Chrysotile Nanotubes on the Grease

Abstract:

The nanoMgO and active nanoSiO₂ were prepared by the special liquid-phase precipitation method. Subsequently, Chrysotile nanotube was prepared of by hydrothermal method using the nanoMgO and active nanoSiO₂ as precursors at 220°C under 23atm in basic solution. The surface topographies and composition of the Chrysotile nanotube were characterized by XRD and TEM. Then, the dispersive property of particles modified by oleic acid was analyzed by IR. The tribological properties) were explored by adding the modified nanomagnesium silicate hydroxide to 2^# lithic-grease after dispersing uniformly. Compared with the blank sample, it can significantly reduce the friction traces of the metal surface, improve extreme pressure performance. The friction coefficient is still stable when the temperature is raised during the friction. Nanotube power can be adhered and spread on the worn metal surface. Thus self-repairing coating forms on the worn surface.

• Periodical: Applied Mechanics and Materials (Volumes 395-396)
• Pages: 149-153
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.395-396.149
• Online since: September 2013
• Authors: Kai Ji He*, Jia Liu, Hao Lv, Shu Min Zheng, Kai Ming Wang
• Keywords: Chrysotile Nanotube, Hydrothermal Reaction Method, Self-Repairing, Special Liquid-Phase Precipitation Method, Tribological Property

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