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Characterization and Tribological Behavior of Polystrene(PS)-TiO2 Nano-spheres
Zhao Yanbao, Zhou Jingfang, Zhang Zhijun, Dang Hongxin
Key Laboratory of Lubrication and Functionary Material,Henan University,Kaifeng 475001
Abstract:
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.
Key words:  Oil addititive,Nano-spheres,PS-TiO2 ,XPS analysis
FundProject:
PS-TiO2 复合纳米微球的表征及摩擦学行为
赵彦保, 周静芳, 张治军*, 党鸿辛
河南大学润滑与功能材料重点试验室 开封 475001
摘要:
采用化学法合成了PS-TiO2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。
关键词:  油性添加剂  纳米微球  PS-TiO2  XPS分析
DOI:1003-7713/2000/06-0683-06
分类号: