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用简单的方法合成了两种二正丁基荒氨酸衍生物(DDCO和DDCS).用四球试验机评价它们在菜籽油(RSO)中的摩擦性能;用X射线吸收近边结构光谱(X-rayabsorptionnearedgestructure,XANES)对两种合成添加剂DDCO和DDCS在菜籽油中与钢表面反应生成的摩擦膜和热膜的化学特征进行了分析.结果表明,这两种化合物具有优良的抗磨性能和承载能力.根据XANES分析结果,在热氧化条件下,热膜表面主要含有硫酸铁及含氮和硫的油不溶聚合物,而次表面和本体主要由硫酸亚铁组成;在抗磨条件下,摩擦膜表面主要由硫酸铁组成,而次表面和本体主要由硫酸亚铁组成.
Two kinds of dibenzylidene derivatives (DDCO and DDCS) were synthesized by a simple method. Their tribological properties in rapeseed oil (RSO) were evaluated by a four-ball testing machine. The near-end structure spectra X-ray absorptivenearedgestructure, XANES) The chemical characteristics of the tribofilms and hot films formed by the reaction of DDCO and DDCS with rapeseed oil on the steel surface were analyzed.The results show that the two compounds have excellent anti-wear properties And carrying capacity.According to the results of XANES analysis, under the condition of thermal oxidation, the surface of the hot film mainly contains ferric sulfate and oil-insoluble polymer containing nitrogen and sulfur, while the subsurface and the bulk are mainly composed of ferrous sulfate; under anti-wear conditions , The surface of the friction film is mainly composed of iron sulfate, while the secondary surface and the main body is composed of ferrous sulfate.