摘要
Series of triazine derivatives, 2,4-bi-alkoxy-6-(O,O’-dialkyldithiophosphate)-s-1,3,5-triazine, weresynthesized. Their tribological properties as lubricating oiladditives in vegetable oil were evaluated using a four-balltester. The results show that these triazine derivatives possessextreme pressure capacity, and they can improve antiwearand friction-reducing performance of base stock. Theelements chemical states of the worn surface were estimatedthrough X-ray photoelectron spectroscopy (XPS) andscanning electron microscope (SEM). The results show that aprotective film containing sulphide, phosphate and someorganic nitrogen compounds was formed on the worn surfaceduring the lubrication process, and the film possessesextreme pressure and antiwear properties.
Series of triazine derivatives, 2,4-bi-alkoxy-6-(O,O'-dialkyldithiophosphate)-s-1,3,5-triazine, were synthesized. Their tribological properties aslubricating oil additives in vegetable oil were evaluated using a four-ball tester. The results showthat these triazine derivatives possess extreme pressure capacity, and they can improve antiwearand friction-reducing performance of base stock. The elements chemical states of the worn surfacewere estimated through X-ray photoelectron spectroscopy (XPS) and scanning electron microscope(SEM). The results show that a protective film containing sulphide, phosphate and some organicnitrogen compounds was formed on the worn surface during the lubrication process, and the filmpossesses extreme pressure and antiwear properties.
基金
the National Natural Science Foundation of China(Grant No.20272036)
the Natural Science Foundation of Jiangxi Province(Grant No.0320052).
关键词
三嗪
摩擦学
菜籽油
硫代磷酸盐
润滑油
triazine derivative
tribological property
rapeseed oil
additive
XPS
