Research on friction properties of polydopamine modified graphene oxide as lubricant additive: Fullerenes, Nanotubes and Carbon Nanostructures: Vol 30, No 9


Summary

On this research, polydopamine-modified graphene oxide (PGO) nanomaterials had been ready primarily based on the self-polymerization of dopamine in a weakly alkaline setting. Within the friction experiment, the lubricants with 0.15 wt% PGO nanomaterials have optimum friction properties. Subsequently, X-ray photoelectron spectroscopy (XPS), X-ray vitality spectroscopy (EDS), and laser Raman spectroscopy had been carried out on the wear and tear scar. In comparison with pure oil, the friction coefficient was diminished by 31%, and the hint width was diminished by 47.69%. As well as, molecular dynamics simulations confirmed that PGO has the bottom diffusion coefficient amongst n-hexadecane and the interplay vitality between PGO and n-hexadecane molecules was the biggest, and oil droplets containing PGO exhibited the most effective adsorption efficiency on the floor of the Si3N4/GCr15. The outcomes confirmed that in contrast with different components, PGO as a lubricant additive can play a big function in lowering friction and anti-wear.