Tribological Behaviors of Polyurethane Composite Coatings Filled with Ionic Liquid Core/Silica Gel Shell Microcapsules

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• 作者：Mingming Yang (1) (2)
  Xiaotao Zhu (1)
  Guina Ren (1) (2)
  Xuehu Men (1)
  Fang Guo (1)
  Peilong Li (1)
  Zhaozhu Zhang (1)
  
  1. State Key Laboratory of Solid Lubrication ; Lanzhou Institute of Chemical Physics ; Chinese Academy of Sciences ; Tianshui Road 18th ; Lanzhou ; 730000 ; People鈥檚 Republic of China
  2. University of Chinese Academy of Sciences ; Beijing ; 100039 ; People鈥檚 Republic of China
  
• 关键词：Friction ; Wear ; Thermosetting resin ; Microcapsules ; Ionic liquid
• 刊名：Tribology Letters
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：58
• 期：1
• 全文大小：1,810 KB
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• 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

文摘

Silica gel shell microcapsules containing ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim][PF6]) have been successfully synthesized through an interfacial self-assembly process and solgel reaction. They are further developed as filler to improve the tribological property of polyurethane composite coatings. The tribological behaviors of the polyurethane composite coatings filled with microcapsules have been systematically investigated using ball-on-disk tribological test. The results showed that the polyurethane composite coating filled with microcapsules displayed much lower friction coefficient and wear, compared with that of unfilled one. It is demonstrated that the ionic liquid released from the broken microcapsules during the friction process lubricates the rubbing surfaces and prevents a direct contact between steel ball and coating, leading to a lower friction coefficient and a lower wear width and depth.