Abstract

Aspartic acid and glutamic acid derived ionic liquids were found to be efficient antiwear and friction-reducing additives for base oils. The tribological performance evaluation of lubricant blends, prepared as 0.15%, 0.3%, 1%, 1.5%, 2%, and 3% concentration by weight into the mineral base oil, was carried out on a four-ball tribotester. The concentration of ionic liquids along with the chain lengths of alkyl groups influenced the tribological performance of the formulated blends. The synthesized ionic liquids exhibited excellent antifriction and antiwear characteristics.

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