Influence of Competitive Adsorption on Lubricating Property of Phosphonate Ionic Liquid Additives in PEG

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• 作者：Yunyan Han ; Dan Qiao ; Yuexia Guo ; Dapeng Feng ; Lei Shi
• 关键词：Phosphonate ionic liquids ; Additive ; Steel/steel contact ; Competitive adsorption ; Chemical reaction
• 刊名：Tribology Letters
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：64
• 期：2
• 全文大小：3,865 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Tribology, Corrosion and Coatings
  Surfaces and Interfaces and Thin Films
  Theoretical and Applied Mechanics
  Physical Chemistry
  Nanotechnology
  
• 出版者：Springer Netherlands
• ISSN：1573-2711
• 卷排序：64

文摘

Three phosphonate ionic liquids (1-butyl-3-methylimidazolium O-butyl phosphonate, N,N-dibutylammonium O-butyl phosphonate and N,N-dibutylammonium O-ethyl phosphonate) are used as additives in PEG for steel/steel contact. Moreover, the tribological performances and lubrication mechanism were studied. Results show that these ionic liquids can improve the tribological performances of the base oil significantly. The main factor that influences the tribological performances of the phosphonate ionic liquids/PEG blends is the competitive adsorption between the base oils and the additives. In addition, chemical reactions between the ionic liquids and the metal substrate are responsible for the excellent tribological performances of the phosphonate ionic liquids/PEG blends.