scholarly journals Ionic Liquid Lubricant with Ammonium Salts for Magnetic Media

10.5772/23244 ◽  
2011 ◽  
Author(s):  
Hirofumi Kondo
Keyword(s):  
Ionic Liquid ◽  
Ammonium Salts ◽  
Magnetic Media ◽  
Liquid Lubricant

scholarly journals Tribochemistry of Ionic Liquid Lubricant on Magnetic Media

2012 ◽  
Vol 2012 ◽  
pp. 1-20 ◽  
Author(s):  
Hirofumi Kondo
Keyword(s):  
Ionic Liquid ◽  
Ammonium Salt ◽  
Terminal Group ◽  
Friction Reduction ◽  
Magnetic Media ◽  
Stick Slip ◽  
Quarter Century ◽  
Liquid Lubricant ◽  
Frictional Properties ◽  
Stick Slip Motion

The newly synthesized perfluoropolyether (PFPE) ionic liquid whose terminal group is an ammonium salt with a carboxylic acid has better frictional properties when compared to the conventional PFPEs. Stick-slip motion was not observed even for the smooth surface for the modified PFPE tape. The friction is almost independent of the PFPE structure, but depends on the amine structures. The ammonium salt being tightly anchored to the rubbing surface covers uniformly, which leads to better lubricity. The higher dispersive interaction of the hydrophobic group of the amine is endowed with a compensating friction reduction. Steric hindrance of the hydrophilic group causes a high friction. Based on these findings, a saturated long chain ammonium salt is the best selection. Moreover, the modified PFPEs are dissolved in alcohol and hexane, which makes practical use convenient without any environmental problems. These ionic lubricants invented around 1987 have been used for magnetic tapes for about a quarter century because of their good lubricity and are reviewed in this paper.

scholarly journals Effect of water on the electroresponsive structuring and friction in dilute and concentrated ionic liquid lubricant mixtures

2020 ◽  
Vol 22 (48) ◽  
pp. 28191-28201
Author(s):  
Georgia A. Pilkington ◽  
Rebecca Welbourn ◽  
Anna Oleshkevych ◽  
Seiya Watanabe ◽  
Patricia Pedraz ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Ionic Liquid ◽  
Neutron Reflectivity ◽  
Force Microscopy ◽  
Liquid Lubricant ◽  
Effect Of Water ◽  
Atomic Force ◽  
Ambient Levels

The influence of ambient levels of water on the electroresponsive interfacial structuring and nanofriction of ionic liquid lubricant mixtures has been investigated by neutron reflectivity and atomic force microscopy.

Ionic liquid crystals of quaternary ammonium salts with a 2-hydroxypropoxy insertion group

2011 ◽  
Vol 21 (19) ◽  
pp. 6875 ◽  
Author(s):  
Zengbin Wei ◽  
Xilian Wei ◽  
Xiuhong Wang ◽  
Zhongni Wang ◽  
Jie Liu
Keyword(s):  
Ionic Liquid ◽  
Liquid Crystals ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts ◽  
Ionic Liquid Crystals

Multi-walled Carbon Nanotube-Imidazolium Tosylate Ionic Liquid Lubricant

2012 ◽  
Vol 50 (2) ◽  
pp. 127-136 ◽  
Author(s):  
Cayetano Espejo ◽  
Francisco-José Carrión ◽  
Daniel Martínez ◽  
María-Dolores Bermúdez
Keyword(s):  
Ionic Liquid ◽  
Carbon Nanotube ◽  
Liquid Lubricant ◽  
Multi Walled Carbon Nanotube

Influence of temperature on PA 6–steel contacts in the presence of an ionic liquid lubricant

Wear ◽  
2007 ◽  
Vol 263 (1-6) ◽  
pp. 658-662 ◽  
Author(s):  
J. Sanes ◽  
F.J. Carrión ◽  
A.E. Jiménez ◽  
M.D. Bermúdez
Keyword(s):  
Ionic Liquid ◽  
Influence Of Temperature ◽  
Liquid Lubricant ◽  
Influence Of Temperature On

Study on the synthesis of quaternary ammonium salts using imidazolium ionic liquid as catalyst

2007 ◽  
Vol 8 (1) ◽  
pp. 39-42 ◽  
Author(s):  
Zhuoqun Zheng ◽  
Tinghua Wu ◽  
Renwei Zheng ◽  
Ying Wu ◽  
Xiaoping Zhou
Keyword(s):  
Ionic Liquid ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salts ◽  
Ammonium Salts ◽  
Imidazolium Ionic Liquid

Alkylation of Ammonium Salts Catalyzed by Imidazolium-Based Ionic Liquid Catalysts.

ChemInform ◽  
2007 ◽  
Vol 38 (37) ◽  
Author(s):  
Zhuo Qun Zheng ◽  
Jie Wang ◽  
Ting Hua Wu ◽  
Xiao Ping Zhou
Keyword(s):  
Ionic Liquid ◽  
Ammonium Salts
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