Turning the solubility and lubricity of ionic liquids by absorbing CO2

被引：24

作者：

Wu, Jian ^{[1
,2
]}

Mu, Liwen ^{[3
]}

Zhu, Jiahua ^{[3
]}

Chen, Yifeng ^{[2
]}

Yin, Xiang ^{[2
]}

Feng, Xin ^{[2
]}

Lu, Xiaohua ^{[2
]}

Larsson, Roland ^{[1
]}

Shi, Yijun ^{[1
]}

机构：

[1] Lulea Univ Technol, Div Machine Elements, S-97187 Lulea, Sweden

[2] Nanjing Tech Univ, State Key Lab Mat Oriented Chem Engn, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Nanjing 210009, Jiangsu, Peoples R China

[3] Univ Akron, Dept Chem & Biomol Engn, Intelligent Composites Lab, Akron, OH 44325 USA

来源：

TRIBOLOGY INTERNATIONAL | 2018年 / 121卷

基金：

中国国家自然科学基金; 瑞典研究理事会;

关键词：

Ionic liquids; Carbon dioxide; Lubrication; Solubility; AIR-CONDITIONING COMPRESSORS; POLY(ETHYLENE GLYCOL); TRIBOLOGICAL PROPERTIES; AMINO-ACIDS; ABSORPTION; LUBRICANTS; CAPTURE; PERFORMANCE; ADDITIVES; PRECIPITATION;

D O I：

10.1016/j.triboint.2018.01.039

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Ionic liquids (ILs) attract high interest as lubricants or lubricant additives due to their special physicochemical characteristics. CO2 is a widely distributed gas. In many situations, its influence on lubricants cannot be avoided. In this work, three Its are synthesized from choline and amino acids of glycine, L-proline and lysine, respectively. The influence of CO2 absorption on their solubility and lubricity is investigated. In general, it is interesting to find that the solubility is decreased and their lubricity is obviously improved after absorbing CO2, which is strongly related to their functional group (amino group) interactions with CO2. The formation of carbamate groups greatly increases the viscosity resulting in less solid contacts, and strengthens the interfacial adhesion between ILs and solids.

引用

页码：223 / 230

页数：8

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