Structure design and performance investigation of 2-mercapto-5-methyl thiadiazole based ionic liquids as lubricants and corrosion inhibitors

Zu, Pengjiao; Zhang, Yisheng; Li, Yang; Zhang, Songwei; Li, Jun; Hu, Litian

doi:10.1016/j.triboint.2022.107682

Cited by 10 publications

(1 citation statement)

References 43 publications

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“…Thus, they have the potential to be used as lubricants and lubricant additives. Since 2001, many researches on ILs as lubricating materials have been carried out (Fang et al , 2021; Fang et al , 2022a; Fang et al , 2022b; Zu et al , 2022; Qu et al , 2015; Cai et al , 2020; Ye et al , 2001). Many functional ILs were developed as liquid lubricants and lubricant additives, such as oil-miscible ILs, anticorrosion ILs and green ILs.…”

Section: Introductionmentioning

confidence: 99%

Mercaptobenzothiazole functionalized ionic liquids as additive in lithium complex grease: rheological and tribological performances

Yang,

Ye,

et al. 2023

ILT

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Purpose This study aims to probe the applicability of 2-mercaptobenzothiazole (MBT) functionalized ionic liquids (ILs) as additives in lithium complex grease (LCG) by researching the corrosion inhibiting, rheological and tribological performances. Design/methodology/approach Electrochemical tests such as electrochemical impedance spectroscopy and potentiodynamic polarization curves were used on Gamry electrochemical workstation to research the corrosion inhibition properties of ILs in 1.0 M HCl corrosive solution. The rheological properties of different grease samples were tested on a rheometer. The tribological properties were investigated on SRV-V oscillating reciprocating friction and wear tester. Scanning electron microscope, X-ray spectrometer and X-ray photoelectron spectrometer were used to characterize the lubricating mechanism. Findings The 2-MBT functionalized ILs have excellent corrosion inhibition properties. When used as additives in LCG, they both exhibited enhancing effects on thermostability, colloid stability and structural recoverability, and furthermore, outstanding friction-reducing and antiwear properties were also obtained. Surface analysis indicated that the superior lubricating performances of 2-MBT functionalized ILs were mainly ascribed to the formation of tribochemical products on wear tracks, including organic compounds with C–O bond, Fe2O3 and FeS2. Originality/value The 2-MBT-based ILs synthesized in this study were multifunctional additives with excellent corrosion inhibiting and tribological properties, which would have a very broad application prospect in lubricating grease industry.

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