油溶性有机钼与二烷基二硫代磷酸锌(ZnDDP)在酯类油中的协同抗磨减摩性能及机理研究  

Anti-Wear and Friction-Reduction Properties and Mechanism of Organic Molybdenum Compounds and Zinc Dialkyldithiophosphate(ZnDDP)in Lipid Synthetic Oil

作　　者：刘金亮[1] 李琪[2] 夏延秋 

机构地区：[1]沈阳工业大学机械工程学院,辽宁沈阳110023 [2]兰州石油化工公司设备维修公司,甘肃兰州730060 [3]中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃兰州730000

出　　处：《摩擦学学报》2009年第1期5-9,共5页Tribology

基　　金：国家973计划资助项目(2007CB607601);固体润滑国家重点实验室资助项目(200404)

摘　　要：采用四球摩擦磨损试验机分别考察了两类油溶性有机钼二烷基二硫代磷酸钼(MoDDP)和二烷基二硫代氨基甲酸钼(MoDTC)在季戊四醇脂中的减摩抗磨性能,探讨了MoDDP和MoDTC与二烷基二硫代磷酸锌(ZnDDP)的协同减摩抗磨性能;用扫描电子显微镜(SEM)和X射线光电子能谱仪(XPS)观察分析了磨斑表面形貌和主要元素的化学状态,探讨了MoDDP和MoDTC的摩擦化学机制.结果表明,油溶性有机钼与ZnDDP复配具有优良的协同减摩和抗磨性能,这是由于ZnDDP促进了有机钼分解,生成了由MoS2、MoO3、ZnS和FePO4等组成的摩擦化学反应膜.Friction and wear properties of two kinds of organic molybdenum compounds were evaluated on a four - ball friction and wear tester. Pentaerythritol ester as stock oil containing organic molybdenum such as molybdenum dialkyldithiophosphate （MoDDP）, molybdenum dialkyldithiocarbamate （MoDTC） and zinc dialkyldithiophosphate （ZnDDP）. The morphologies of the worn surfaces were observed using SEM. The chemical states of several typical elements on the wom surfaces were examined by XPS. The composite of oil - soluble organic molybdenum compounds and ZnDDP exhibited excellent synergistic anti -wear and friction -reduction properties. This is because that ZnDDP accelerated decomposition of organic molybdenum compounds on the friction surface and creates tribochemistry film consisting of MoS2, MoO3 , ZnS and FePO4.

关 键 词：油溶性有机钼 二烷基二硫代磷酸锌(ZnDDP) 抗磨减摩性能 摩擦化学 

分 类 号：TH117[机械工程—机械设计及理论]