Structural strategies to design bio-ionic liquid: Tuning molecular interaction with lignin for enhanced lubrication

doi:10.1016/j.molliq.2019.02.022

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Structural strategies to design bio-ionic liquid: Tuning molecular interaction with lignin for enhanced lubrication
	Mu, LW ; Ma, XF ; Guo, XJ ; Chen, MJ ; Ji, T ; Hua, J ; Zhu, JH ; Shi, YJ
刊名	JOURNAL OF MOLECULAR LIQUIDS
	2019
卷号	280 期号:-页码:49—57
关键词	GREEN LUBRICANTS AMINO-ACIDS ELASTOHYDRODYNAMIC LUBRICATION HYDROGEN-BONDS BEHAVIOR PRETREATMENT ADDITIVES VISCOSITY BOUNDARY DYNAMICS
ISSN号	0167-7322
DOI	10.1016/j.molliq.2019.02.022
文献子类	期刊论文
英文摘要	Lignin strengthened ionic liquids (ILs) have shown high potential to be used as high performance green lubricants. Strengthened lignin-ILs molecular interaction is an effective approach to improve their lubrication properties. The molecular interactions of ILs' cation and anion containing different functional groups with lignin and efficiency on the lubricating properties have rarely been studied yet. In this work, a series of novel green lubricants with dissolved lignin in [Choline][Amino Acid] ([CH][AA]), [Tetramethylammonium][Glycine] (N-1111][Gly]) and [Tetrabutylammonium][Glycine] ([N-4444][Gly]) ILs have been synthesized and their tribological properties were systematically investigated. The longer alkyl chain in cation without reciprocal H-bond interaction between ILs' cation and anion has the positive effect on the anti-wear properties. In addition, the less steric effect and more negative natural charges of amino acid anion synergistically contribute to the stronger H-bond interaction between lignin and choline base ILs, which enhances lubrication film strength and thus resulting in the better tribological property of ILs/lignin green lubricants. Specifically, the wear volume loss of the steel disc lubricated by [N-4444][Gly] with the addition of 15% lignin is only 12% of the one lubricated by pure [N-4444][Gly]. This work presents a method to tune molecular interaction between lignin and ILs via the structural design of ILs' cation and anion, which are revealed as the key factor that bridges the individual components and improves overall lubricating properties. (C) 2019 Published by Elsevier B.V.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31831]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Lulea Univ Technol, Div Machine Elements, S-97187 Lulea, Sweden; 2.Nanjing Forestry Univ, Coll Sci, Nanjing 210037, Jiangsu, Peoples R China; 3.Univ Akron, Dept Chem & Biomol Engn, Intelligent Composites Lab, Akron, OH 44325 USA; 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Mu, LW,Ma, XF,Guo, XJ,et al. Structural strategies to design bio-ionic liquid: Tuning molecular interaction with lignin for enhanced lubrication[J]. JOURNAL OF MOLECULAR LIQUIDS,2019,280(-):49—57.
APA	Mu, LW.,Ma, XF.,Guo, XJ.,Chen, MJ.,Ji, T.,...&Shi, YJ.(2019).Structural strategies to design bio-ionic liquid: Tuning molecular interaction with lignin for enhanced lubrication.JOURNAL OF MOLECULAR LIQUIDS,280(-),49—57.
MLA	Mu, LW,et al."Structural strategies to design bio-ionic liquid: Tuning molecular interaction with lignin for enhanced lubrication".JOURNAL OF MOLECULAR LIQUIDS 280.-(2019):49—57.