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合成了系列多烷基环戊烷,采用傅立叶变换红外光谱仪和核磁共振谱仪进行表征,确定为目标化合物,并测定产物的黏度、倾点和密度.将多烷基环戊烷用作润滑剂,在SRV摩擦磨损试验机上评价对钢/钢摩擦副的润滑作用,并利用扫描电子显微镜(SEM)和X射线光电子能谱仪(XPS)分析钢块磨损表面形貌及化学状态.结果表明:多烷基环戊烷作为润滑剂对钢/钢摩擦副具有良好的减摩抗磨性能,其摩擦学性能受取代基的影响;取代基碳链越长,减摩效果越好;XPS结果显示低载荷时,MACs在摩擦副表面形成较为牢固的物理吸附膜,起到减摩抗磨的作用;随着载荷的增大,MACs借助于含Fe2O3和摩擦聚合物等的边界润滑膜来保护材料表面.
A series of polyalkylcyclopentanes were synthesized and characterized by Fourier transform infrared spectroscopy and nuclear magnetic resonance spectroscopy to determine the target compounds and the viscosity, pour point and density of the products were determined.The polyalkylcyclopentane was used as a lubricant , The lubrication of the steel / steel friction pairs was evaluated on a SRV friction and wear tester and the wear surface topography and chemical state of the steel fragments were analyzed by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) Polyalkylcyclopentane as a lubricant has good friction and wear resistance to steel / steel friction pair, and its tribological properties are affected by the substituent; the longer the carbon chain of the substituent, the better the anti-friction effect; the XPS results show Under low load, MACs form a stronger physical adsorption film on the friction pair surface, which can reduce the friction and wear resistance. With the increase of the load, MACs protect the material by means of the boundary lubrication film containing Fe2O3 and friction polymer surface.