Green Ionic Liquid Lubricants Prepared from Anti-Inflammatory Drug

1-Alkyl-3-methylimidazolium ibuprofen ionic liquids (ILs, L-Ibu104, L-Ibu106 and L-Ibu108) were synthesized from an anti-inflammatory drug, sodium ibuprofen. The physicochemical and tribological properties of these ILs as neat lubricants for steel/steel and steel/copper contacts were measured. The r...

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Published inTribology letters Vol. 60; no. 3; pp. 1 - 11
Main Authors Song, Zenghong, Yu, Qiangliang, Cai, Meirong, Huang, Guowei, Yao, Meihuan, Li, Dongmei, Liang, Yongmin, Fan, Mingjin, Zhou, Feng
Format Journal Article
LanguageEnglish
Published New York Springer US 01.12.2015
Springer Nature B.V
Subjects
Adsorption
Anions
Chemistry and Materials Science
Copper
Corrosion and Coatings
Corrosion tests
Friction reduction
Hydrolysis
Ibuprofen
Ionic liquids
Ions
Lubricants
Lubrication
Materials Science
Nanotechnology
Nonsteroidal anti-inflammatory drugs
Original Paper
Photoelectrons
Physical Chemistry
Rubbing
Stability analysis
Surfaces and Interfaces
Theoretical and Applied Mechanics
Thin Films
Tribology
Ultrasonic testing
Wear
No corrosion
Hydrolysis stable
Ibuprofen
Ionic liquid
Lubricant
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Summary:1-Alkyl-3-methylimidazolium ibuprofen ionic liquids (ILs, L-Ibu104, L-Ibu106 and L-Ibu108) were synthesized from an anti-inflammatory drug, sodium ibuprofen. The physicochemical and tribological properties of these ILs as neat lubricants for steel/steel and steel/copper contacts were measured. The results of hydrolysis stability evaluation and copper strip corrosion test show that these kinds of ILs are hydrolysis stable and have no corrosion to the metal contacts because of stability of anion. The friction and wear test results exhibit that these ibuprofen ILs have more effective friction-reducing and anti-wear properties than poly-alpha-olefin (PAO40) and 1-hexyl-3-methylimidazolium bis(trifluoromethylsulphonyl)imide (L-F106) at 100 °C. According to the X-ray photoelectron spectrometer analytical results, we speculated that physical adsorption films can easily formed on the metal worn surfaces during the rubbing process because of the high adsorption ability of Ibu − anion, which play an important role in the good lubricating behaviours of ibuprofen ILs. Graphical Abstract
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ISSN:1023-8883
1573-2711
DOI:10.1007/s11249-015-0611-5