二戊基二硫代氨基甲酸锑的抗磨机理  

Study on Antiwear Mechanism of Antimony Diamyldithio-carbamate

作　　者：胡建强[1] 谢凤[1] 刘广龙[1] 费逸伟[1] 

机构地区：[1]徐州空军学院航空油料系,江苏徐州221000

出　　处：《材料保护》2010年第1期22-24,共3页Materials Protection

基　　金：清华大学摩擦学国家重点实验室开发基金(SKLT07-05)资助

摘　　要：为了进一步弄清润滑油添加剂二戊基二硫代氨基甲酸锑(SbDTC)在金属表面的摩擦化学行为,在实验室合成了SbDTC,利用四球试验机研究了其极压和抗磨性能,采用X射线光电子能谱仪(XPS)、扫描电镜(SEM)对边界润滑状态下形成的磨斑及磨斑表面典型元素的组成、化学状态和含量进行了分析。结果表明,SbDTC具有较好的抗磨性能和承载能力,其主要原因可能是其在摩擦过程中与金属表面作用,生成了由Sb2O3,FeS,Fe2O3和含氮有机物组成的边界润滑膜,起到了缓冲载荷和抑制磨损的作用。Antimony diamyldithiocarbamate (SbDTC) was synthesized as a lubricant additive.The extreme pressure and antiwear properties of the additive were evaluated by using a four-ball friction and wear tester.The morphology of the wear scar formed under boundary lubricated condition was observed by using a scanning electron microscope,while the composition and chemical state of typical elements on the wear scar were analyzed by means of X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM).Results show that SbDTC possesses good antiwear ability and load-carrying capacity.The main reason might lie in that the additive reacted with the sliding metallic sur-face,forming a boundary lubricating and protective film consis-ting of Sb2O3,FeS,Fe2O3 and N-containing organic compounds and hence bearing load and retarding wear.

关 键 词：二戊基二硫代氨基甲酸锑 添加剂 润滑性能 抗磨性能 机理 

分 类 号：TE624.82[石油与天然气工程—油气加工工程]