scholarly journals Aspartic Acid-derived Wear-preventing and Friction-reducing Agents for Ionic Liquids

2008 ◽  
Vol 37 (3) ◽  
pp. 300-301 ◽  
Author(s):  
Ichiro Minami ◽  
Naoko Watanabe ◽  
Hidetaka Nanao ◽  
Sigeyuki Mori ◽  
Kenta Fukumoto ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Aspartic Acid ◽  
Reducing Agents ◽  
Friction Reducing

Unexpected proton mobility in the bulk phase of cholinium-based ionic liquids: new insights from theoretical calculations

2017 ◽  
Vol 19 (19) ◽  
pp. 11869-11880 ◽  
Author(s):  
Marco Campetella ◽  
Maria Montagna ◽  
Lorenzo Gontrani ◽  
Eleonora Scarpellini ◽  
Enrico Bodo
Keyword(s):  
Ionic Liquids ◽  
Aspartic Acid ◽  
Theoretical Calculations ◽  
Bulk Phase ◽  
Proton Mobility ◽  
A Chain

A chain of aspartic acid anions connected by H-bonds exchanging protons.

Functionalized Ionic Liquids as Lubricants for Steel-Steel Contact

2011 ◽  
Vol 138-139 ◽  
pp. 630-634 ◽  
Author(s):  
Li Ye Zhu ◽  
Li Gong Chen ◽  
Xin Yang ◽  
Hong Bin Song
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Physicochemical Properties ◽  
Tribological Properties ◽  
Friction And Wear ◽  
Friction Mechanisms ◽  
Ester Group ◽  
Friction Reducing

A new series of functionalized ionic liquids containing ester-group were synthesized through a typical two-step way. The physicochemical properties of the functionalized ionic liquids were studied and the tribological properties of them as lubricants for steel-steel contact were evaluated on an SRV friction and wear tester and compared with the perfluoroalkylpolyether (PFPE), a low-volatility and fluorine containing lubricant, and a conventional ionic liquid, 1-butyl-3-methy imidazolium tetrafluoroborate (LB104), which is nonfunctionalized. Results showed that all the ionic liquids studied in this paper have better lubricities than PFPE as lubricants for steel-steel friction pairs. Functionalized ionic liquids show worse friction reducing abilities at relatively lower loads, which could be ascribed to their higher viscosities, but they always exhibit better anti-wear abilities than LB104. The possible friction mechanisms were discussed.

Preparation of Several Ionic Liquids with Excellent Friction-Reducing and Antiwear Properties

2013 ◽  
Vol 668 ◽  
pp. 547-550
Author(s):  
Ding Jun Zhang ◽  
Chao Yun Qu
Keyword(s):  
Ionic Liquids ◽  
Friction And Wear ◽  
Ambient Condition ◽  
Tribological Behaviour ◽  
Antiwear Properties ◽  
Friction Reducing ◽  
Reducing Properties

Four ionic liquids containing dithiocarbazate were synthesized. Their antiwear and friction-reducing properties of these synthetic liquid compounds as the lubricants of a steel/steel contact were examined using an Optimol SRV oscillating friction and wear tester in ambient condition. The results indicated that the ionic liquids containing dithiocarbazate as the lubricants showed excellent friction-reducing and antiwear properties for the steel/steel pair. The introduction of the dithiocarbazate group into the molecules of the ionic liquids contributed to improve the tribological behaviour.

Halogen-free ionic liquids: effect of chelated orthoborate anion structure on their lubrication properties

RSC Advances ◽  
2015 ◽  
Vol 5 (32) ◽  
pp. 25287-25294 ◽  
Author(s):  
Rashi Gusain ◽  
Om P. Khatri
Keyword(s):  
Ionic Liquids ◽  
Antiwear Properties ◽  
Friction Reducing ◽  
Halogen Free ◽  
Lubrication Properties ◽  
Ammonium Ionic Liquids

The chelated orthoborate anions based ammonium ionic liquids are developed for non-corrosive, friction-reducing and antiwear properties.

Noncovalent interactions underlying binary mixtures of amino acid based ionic liquids: insights from theory

2017 ◽  
Vol 19 (43) ◽  
pp. 29561-29582 ◽  
Author(s):  
Soniya S. Rao ◽  
Libero J. Bartolotti ◽  
Shridhar P. Gejji
Keyword(s):  
Density Functional Theory ◽  
Ionic Liquids ◽  
Amino Acid ◽  
Glutamic Acid ◽  
Aspartic Acid ◽  
Binary Mixtures ◽  
Density Functional ◽  
Noncovalent Interactions ◽  
Functional Theory ◽  
Dicarboxylic Amino Acid

Mixtures of ionic liquids formed by blending a common 1-methyl-3-butylimidazolium [Bmim] cation with the dicarboxylic amino acid anions viz., aspartic acid [Asp], asparagine [Asn], glutamic acid [Glu], and glutamine [Gln], have been investigated by employing dispersion corrected density functional theory.

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