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Synthesis of ionic liquids with multifunctional tribological properties as excellent single‐component package additives for turbine oils
Author(s) -
Keshavarz Shahriyar,
NaimiJamal Mohammad R.,
Izadmanesh Yahya,
Dekamin Mohammad G.
Publication year - 2019
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.1473
Subject(s) - lubricant , ionic liquid , materials science , thermogravimetric analysis , fourier transform infrared spectroscopy , tribology , lubrication , chemical engineering , benzotriazole , environmentally friendly , organic chemistry , composite material , metallurgy , chemistry , engineering , biology , catalysis , ecology
Three benzotriazole‐bearing imidoazolium‐based ionic liquids (ILs) have been synthesized. The ILs were identified by 1 HNMR and Fourier‐transform infrared (FTIR) techniques. The thermogravimetric analysis showed that they are highly nonvolatile and have extremely high flash points. The synthesized ILs were used in turbine oil formulation, and their lubrication properties were critically examined and compared to commercially available package additives. The tribological tests proved that the ILs act as an effective antifriction, antiwear (AW), and extreme pressure (EP) additives. Performance studies indicated that the synthesized ILs impart excellent antioxidation and corrosion protection to the lubricant with minimum acidity change. The elemental analysis proved absence of toxic and dangerous elements in the lubricant, a confirmation that the ILs are potential environmentally friendly lubricants. The results also confirmed that the synthesized ILs are ideal single‐component package additives in the lubricant industry, i.e. , one molecule imparts several favorable functionalities to the lubricant..