Effect of copper oxide@boron nitride nanosheet hybrid nanocomposite on tribological properties of paraffin liquid

Abstract Due to the significant friction-reduction and anti-wear properties of nano particle, copper oxide (CuO) particle decorating on boron nitride nanosheets (BNNS) nanocomposites are fabricated with polydopamine (PDA) as linking agent. The structural morphological characteristics CuO@BNNS composite characterized by scanning electron microscopy (SEM), X-ray diffraction patterns, fourier transform infrared spectroscopy thermogravimetric analysis. synergistic effect CuO BNNS extreme pressure lubrication oil investigated. A four-ball tribometer is adopted investigate tribological behaviors as-prepared different additives. Optical microscope SEM used analyze topography worn surface. Energy dispersive element distribution results demonstrate that nanoparticle could effectively improve paraffin liquid, compared liquid containing modified (f-CuO) or PDA-BNNS respectively. surface steel ball presents smooth morphology for CuO@BNNS, contrast f-CuO With tribo-film formation surface, elements distribute uniformly CuO@BNNS. Compared lower load, load-carrying capacity easy-shear property outstand under 392 N, which in other Article Highlights hybrid was prepared a simple mild method. superior anti-friction due nanoparticle. result obtained paper promotes application h-BN based tribology.