Excellent dispersion stability and enhanced tribological properties of biocarbon‐based magnesium silicate hydroxide modified with oleylamine

Biocarbon-based magnesium silicate hydroxide ([email protected]) was synthesised by hydrothermal method with synthesised magnesium silicate hydroxide (MSH) as the template, glucose as carbon source and oleylamine (ON) as the modified agent. The outstanding dispersion stability of [email protected] as lubricant additives in PAO10 with ON as dispersant was proved by accelerated centrifugation and static sedimentation tests. The tribological properties of [email protected] as lubricant additive were tested under different concentrations and working conditions, and it was found that oil samples containing [email protected] as additive showed enhanced tribological properties than that containing MSH under 600 N, 600 RPM. At the same time, the anti-wear performance was thought to be affected by the external energy acted on nano-additives. When [email protected] as additive fully functioned, a continuous carbon layer formed on the contact area and the repairing effect of inner MSH of [email protected] were considered as the factors to play an anti-wear role.