Journal of Materials Research and Technology (Nov 2021)

Investigation on the tribological performance of functionalized nanoscale silica as an amphiphilic lubricant additive

  • Liang Hao,
  • Peipei Li,
  • A. Aljabri,
  • Huaying Li,
  • Guangming Liu,
  • Zhongliang Xie,
  • Tuanjie Li

Journal volume & issue
Vol. 15
pp. 5507 – 5515

Abstract

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In order to enhance tribological performance of both water-based and oil-based lubricant, the SiO2 nanoscale ionic liquid (NIL), an amphiphilic lubricant additive, was prepared by using a sulfuric acid terminated organo-silane as corona and polyether amine as canopy. Various analytical techniques were used to characterize the SiO2 NIL and stability of the nanolubricants. A ball-on-disk tribometer was adopted to investigate the lubrication enhancement of the SiO2 NIL in both water-based and oil-based lubricants. The results show that the SiO2 NIL can reduce the coefficient of friction (COF) and wear in these two lubricant groups, especially in the water-based lubricant. The lubrication mechanisms are ascribed to the polishing, ball bearing and mending effects of the SiO2 NIL.

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