초록 |
A series of oleic acid esters and sebacic acid esters containing mercaptobenzothiazole and dialkylenedithiocarbamate, which are potential environmentally friendly lubricating grease additives, were synthesized. The tribological properties as lubricating additives in 100N BO, vegetable oil, and Li-soap greases were evaluated using a 4-ball tester and SRV tester. As the results of 4-ball WSD in 100N BO, 4-ball property of oleic acid ester with mercaptobenzothiazole groups possess better antiwear performance than that of the other esters with dialkylenedithiocarbamate. And, SRV EP characteristics of the synthesized esters in Li-soap grease showed better than that of Mo-DTC. |