Effects of Carboxylic Acids on Friction and Wear Reducing Properties for Alkylmethylimidazolium Derived Ionic liquids
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概要
- 論文の詳細を見る
Lubricant additive technology to improve lubricant performances is an important issue for ionic liquids to be applied practically. Effects of carboxylic acids with different carbon chain length in ionic liquid on tribological properties were examined. Solubility of carboxylic acids was dependent on the chain length of carboxylic acids and imidazolium cations. The carboxylic acids reduced friction and wear in comparison with additive free one. It was found that friction reducing properties of carboxylic acid depended on their chain length. Interestingly, additive response of ionic liquids was found to be superior to those for conventional ester oil as base oil. Surface images obtained by an optical microscope clearly show that the additive depressed chemical wear by ionic liquids especially at low load. Surface analysis with EPMA supported films of carboxylic acids as a cause of improvement of friction property. Therefore, the mechanism of carboxylic acids was considered to provide adsorbed film which accompanied with low friction and anti-wear properties.
- Japanese Society of Tribologistsの論文
著者
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Mori Shigeyuki
Department Of Chemical Engineering Faculty Of Engineering Iwate University
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Watanabe Naoko
Department Of Biomolecular Science Faculty Of Science Toho University
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Minami Ichiro
Department Of Chemical Engineering Faculty Of Engineering Iwate University
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Nanao Hidetaka
Department of Chemical Engineering, Iwate University
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Kamimura Hideto
Lubricants Research Laboratory, Idemitsu Kosan Co., Ltd.
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Chiba Takeru
Department of Chemical Engineering, Iwate University
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Kubo Tomoo
Department of Chemical Engineering, Iwate University
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Kubo Tomoo
Department of Chemical Engineering, Faculty of Engineering, Iwate University
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Watanabe Naoko
Department of Chemical Engineering, Iwate University
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Nanao Hidetaka
Department of Chemical Engineering, Faculty of Engineering, Iwate University
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