FIELD: chemistry.
SUBSTANCE: lubricant composition contains a base in form of liquid polyesters, having density of 0.91-0.96 g/cm3 at 20°C; viscosity index of 120-163 and flash point 250°C-325°C and 0.01-1% nanoparticles of an inorganic additive. The inorganic additive used is hydrophobic nanodispersion of silicon dioxide with polysiloxane groups grafted on its surface, with specific surface of the nanoparticles equal to 90-300 m2/g.
EFFECT: improved tribological and antioxidative properties of the lubricant material.
4 ex, 1 dwg
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