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Characterization and Tribological Behavior of Polystrene(PS)-TiO2 Nano-spheres
Zhao Yanbao,Zhou Jingfang,Zhang Zhijun,Dang Hongxin
Author NameAffiliationE-mail
Zhao Yanbao Key Laboratory of Lubrication and Functionary MaterialHenan UniversityKaifeng 475001  
Zhou Jingfang Key Laboratory of Lubrication and Functionary MaterialHenan UniversityKaifeng 475001  
Zhang Zhijun Key Laboratory of Lubrication and Functionary MaterialHenan UniversityKaifeng 475001 jingfangzhou@371.net 
Dang Hongxin Key Laboratory of Lubrication and Functionary MaterialHenan UniversityKaifeng 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
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: