Tribological Behaviors of S,B-Containing Morpholine Derivatives as Additives in Rapeseed Oil

无灰的二篇小说和非磷 S ， 包含B morpholine 衍生物， MBOC 和 MBOD ，被准备，他们在油菜籽油( RSO )的 tribological 行为用四球的 tester.Thermal 降级被评估测试被进行用穿的 thermo-gravimetric analyzer.The 识别他们的热稳定性钢球的表面被扫描 .The 结果显示了的电子显微镜学( SEM )调查添加剂拥有了高热的稳定性并且好带负担的

Two novel ashless and non-phosphorus S, B-containing morpholine derivatives, MBOC and MBOD, were prepared and their tribological behaviors in rapeseed oil （RSO） were evaluated using a four-ball tester. Thermal degradation tests were conducted to identify their thermal stabilities using a thermo-gravimetric analyzer. The worn surfaces of the steel balls were investigated by scanning electron microscopy （SEM）. The results indicated that the additives possessed high thermal stabilities and good load-carrying capacities. Moreover, they both had good anti-wear and friction reducing property at a relatively high concentration （1.5 m%） and under all test loads. The results of XPS analyses illustrated that the prepared compounds as additives in RSO could form a protective film containing inorganic sulfide, sulfate, oxidized compounds and organic nitrogen-containing compounds on the metal surface during the sliding process.