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Updated: Sep 2, 2026
Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
Design of Ionic Liquid Additives for High-Performance Titanium Complex Grease: Rheological and Tribological Behavior
Xinfu Liu1,2, Ningbo Liu1,3, Qinglun Che1
1Discipline Innovation and Wisdom Introduction Base of High-End Laser Intelligent Manufacturing Technology and Equipment, Qingdao University of Technology, Qingdao266520, P. R. China.
Abstract:
Versatile ionic liquid (IL) additives could significantly improve the service performance of greases under complex working conditions. This study investigates the influence of two nitrogen-containing heterocyclic ILs (1-butyl-3-methylimidazole 4,6-dimethyl-2-mercaptopyrimidine [BMIM][DMMP] and 1-butyl-3-methylimidazole 2-mercaptobenzothiazolate [BMIM][MBT]) as additives on the performance of titanium complex grease (TCG). Rheological and tribological analyses demonstrate that [BMIM][DMMP] significantly enhances the oil control capability and thickener network entanglement. Both additives improve antiwear and friction reduction properties. Specifically, the lone pair electrons on the pyrimidine nitrogen in [BMIM][DMMP] facilitate coordination with metal surfaces, while its sulfur-containing active group generates stable sulfate-rich lubricating films during friction, leading to superior lubrication. This work provides a theoretical basis for designing high-performance grease additives through IL structural modification.
