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在石蜡油 聚乙二醇的混合溶剂中 ,通过液相分散法成功地制备出了铅纳米微粒 .其中 ,石蜡油是反应介质 ,聚乙二醇是抗氧化剂 .同时 ,对铅纳米微粒的形貌和结构进行了透射电镜 (TEM)和X光衍射 (XRD)表征 .结果表明 ,铅纳米微粒呈球形 ,平均粒径为 70nm ,具有与本体铅相同的晶体结构 .另外 ,在四球试验机上表征了铅纳米微粒作为润滑油添加剂的摩擦学性能 .摩擦试验表明 ,铅纳米微粒具有良好的减摩抗磨性能 ,并能够显著改善基础油的承载能力 .磨斑表面分析表明 ,铅纳米微粒的抗磨减摩机制不是形成金属沉积膜 ,可能是在摩擦接触面形成滑动 轴承系
In the mixed solvent of paraffin oil polyethylene glycol, the lead nanoparticles were successfully prepared by the liquid phase dispersion method, in which paraffin oil was the reaction medium and polyethylene glycol was the antioxidant.At the same time, Morphology and structure were characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD) .The results showed that the lead nanoparticles were spherical and had an average particle size of 70 nm and had the same crystal structure as the bulk lead.On the other hand, The tribological properties of lead nanoparticles as a lubricating oil additive were tested by friction test.The results showed that the lead nanoparticles had a good anti-friction and anti-wear properties and could significantly improve the bearing capacity of the base oil.Analysis of the wear surface showed that the lead nanoparticles Abrasion reduction mechanism is not the formation of metal deposition film may be in the friction contact surface to form a sliding bearing system