摘要
采用化学法合成了PSTiO2复合纳米微球，并对其进行了TEM、 FTIR、 TGA及DSC等分析表征。将这种微球用作润滑油添加剂,在四球试验机上研究了它的减摩抗磨性能，同时又对磨斑表面进行了X射线光电子能谱分析(XPS).研究表明：这种添加剂有良好的抗磨性能，并能在摩擦表面形成由TiO2、 Fe2O3以及有机碎片所组成的边界润滑膜。
Polystrene (PS)-TiO2 nano-spheres were chemically synthesized. The structure characterization of the prepared PS-TiO2 nano-spheres was investigated by means of transmission electron microscopy (TEM) and Fourier transform infrared spectroscopy (FTIR). The thermal stability of PS-TiO2 nano-spheres was identified using a thermal analyzer (DSC ＆ TGA). The tribological behaviors of PS-TiO2 nano-spheres as additives in paraffin oil were evaluated on a four-ball machine. The worn surfaces were analyzed with X-ray photoelectron spectroscopy (XPS) also. Experimental results indicate that the PS-TiO2 nano-spheres, under a certain condition, have a good anti-wear performance and improve striking failure load. This is attributed to the formation of a chemical reaction boundary film consisting of TiO2, Fe2O3 and organic fragments.
