2-mercapto-5-methyl-1,3,4-thiadiazole (MMT) based ionic liquids were synthesized, their corrosion inhibition behavior and tribological performance were systematically evaluated. Electrochemical experiments showed MMT based ILs exhibited surprising corrosion inhibition efficiencies. The ILs adsorption behavior obeys Langmuir isotherm. Friction tests demonstrated MMT based ILs performed excellent lubrication properties, compared to [BMIM][BF₄]. Combining with analysis of SEM and XPS, it can be concluded that the prominent lubrication performance ascribed to the coexistence of adsorption layer and tribo-film. Therefore, versatile ILs designed in this paper have gathered two significant abilities for industrial applications, which are high corrosion inhibiting performance and excellent lubricating properties. This work is instructive for structure design of multifunctional ILs and will promote industrial application of MMT based ILs in the future.

合成了2-巯基-5-甲基-1,3,4-噻二唑（MMT）基离子液体，对其缓蚀行为和摩擦学性能进行了系统评价。电化学实验表明基于 MMT 的离子液体表现出令人惊讶的腐蚀抑制效率。ILs 吸附行为服从 Langmuir 等温线。_{摩擦测试表明，与 [BMIM][BF 4}相比，基于 MMT 的 IL 具有出色的润滑性能]。结合 SEM 和 XPS 的分析，可以得出结论，突出的润滑性能归因于吸附层和摩擦膜的共存。因此，本文设计的多功能离子液体具有两种重要的工业应用能力，即高腐蚀抑制性能和优异的润滑性能。这项工作对多功能ILs的结构设计具有指导意义，并将促进未来基于MMT的ILs的工业应用。