Effect of mixing procedure of oleic acid and BN nanoparticles as additives on lubricant performance of PAO8. (November 2022)

• Record Type: Journal Article
• Authors: Wen, Gang; Wen, Xiangli; Bai, Pengpeng; Meng, Yonggang; Ma, Liran; Tian, Yu
• Is Part Of: Tribology international. Volume 175(2022)
• Publication Date: 2022-11
• Subjects: BN nanoparticles -- Oleic acid -- Mixing procedure -- Friction-reducing and anti-wear; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2022.107842
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: Nanoparticles can be added as anti-friction and anti-wear additives to lubricating oil to achieve better lubrication performance. In this study, we demonstrate that the mixing procedure of BN nanoparticles and oleic acid (OA) influences the lubricant performance of PAO8. Lower friction and wear can be realized when OA and BN nanoparticles are mixed simultaneously in PAO8 than those with pre-mixed BN nanoparticles and OA. The tribological performance of the prepared lubricant was ascribed to the synergistic effect of the migration of well-dispersed BN nanoparticles and the adsorption of free OA on the metal surface. These results suggest that attention should be paid to the potential effect of the mixing procedure of additives, which might affect the performance of lubricants. Graphical Abstract: The mixing procedure of BN nanoparticles and OA has a significant effect on the lubricant performance of PAO8. ga1 Highlights: The mixing procedure of BN nanoparticles and OA has a significant effect on the lubricant performance of PAO8. Different mixing procedures have a dominant impact on the concentration of free OA in the lubricant oil. The tribological performance was ascribed to the synergistic effect of BN nanoparticles and free OA.