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Synergy of lithium salt and non-ionic surfactant for significantly improved tribological properties of water-based fluids

  • Yurong Wang
  • , Qiangliang Yu
  • , Meirong Cai
  • , Lei Shi
  • , Feng Zhou
  • , Weimin Liu
  • CAS - Lanzhou Institute of Chemical Physics
  • University of Chinese Academy of Sciences

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

The paper reports the synergistic effect of lithium salt and non-ionic surfactant in improving the tribological and anticorrosion performance of water based lubricant. The synergy comes from the in-situ formation of ionic liquids type of complex. The lubricating and anti-wear behaviour of 2% lithium salt +18% non-ionic surfactants additives in water for steel/steel contacts were evaluated with lithium salt and surfactant only as the control comparisons. The tribological results show that this additive has better lubricating performance than 2% lithium salt or 20% non-ionic surfactant. The lubricating mechanism was tentatively discussed according to electrical contact resistance measurement and X-ray photoelectron spectroscopy analysis.

Original languageEnglish
Pages (from-to)58-64
Number of pages7
JournalTribology International
Volume113
DOIs
StatePublished - 2017
Externally publishedYes

Keywords

  • Additives
  • Ionic liquids
  • Non-ionic surfactant
  • Water-based lubricant

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