在溶液中化学合成了有机化合物表面修饰的油溶性 Ce F3纳米微粒 ,初步探讨了表面修饰 Ce F3纳米微粒的制备条件 ,并表征了表面修饰 Ce F3纳米微粒的结构和性能。结果表明 ,表面修饰 Ce F3纳米微粒添加剂具有良好的减摩抗磨性 ,并且可以...在溶液中化学合成了有机化合物表面修饰的油溶性 Ce F3纳米微粒 ,初步探讨了表面修饰 Ce F3纳米微粒的制备条件 ,并表征了表面修饰 Ce F3纳米微粒的结构和性能。结果表明 ,表面修饰 Ce F3纳米微粒添加剂具有良好的减摩抗磨性 ,并且可以有效地提高基础油的承载性能 ,其性能优于商品添加剂 T2 0 2 (ZDDP)。展开更多
Oleate/PSt/TiO 2 nanosphere composites were prepared by seeding polymerization and characterized by TEM、FTIR、DSC and TGA. The antiwear ability of the oleate/PSt/TiO 2 nanospheres as additives in base oil was evaluat...Oleate/PSt/TiO 2 nanosphere composites were prepared by seeding polymerization and characterized by TEM、FTIR、DSC and TGA. The antiwear ability of the oleate/PSt/TiO 2 nanospheres as additives in base oil was evaluated. The results indicate the oleate/PSt/TiO 2 nanosphere composites have good wear and extreme pressure resistance.展开更多
Pyridinium dioctadecyldithiophosphate(PyDDP) modified nickel nanoparticles were prepared by chemical reduction method in water toluene mixing solution. Byusing FT IR, TG, XRD and TEM, the resultant surface modified Ni...Pyridinium dioctadecyldithiophosphate(PyDDP) modified nickel nanoparticles were prepared by chemical reduction method in water toluene mixing solution. Byusing FT IR, TG, XRD and TEM, the resultant surface modified Ni particles were characterized. The results show that the nano Ni core has an average diameter of 12nm with a fcc structure. The hydrophobic groups formed by the organic layer on the surface of Ni particles make the nanoparticles have good stability andoil solubility.展开更多
Sb 2 O 3 nanoparticles were prepared via hydrolyze reaction of SbCl 3 in water - ethanol solution,and were char - acterized by XRD and TEM.In addition,the effect of reactive condition on particle size was also investi...Sb 2 O 3 nanoparticles were prepared via hydrolyze reaction of SbCl 3 in water - ethanol solution,and were char - acterized by XRD and TEM.In addition,the effect of reactive condition on particle size was also investigated systematically.When the sample modified by coupling agent was applied in formulation of plastic,the mechanical property and flame retardancy was better than micron sample.展开更多
In this paper, we reported, for the first time, a novel and simple solution me thod for preparing stearic acid (SA) modified Bi nanoparticles from bulk bismuth granules. The SA-Bi nanoparticles with an average size of...In this paper, we reported, for the first time, a novel and simple solution me thod for preparing stearic acid (SA) modified Bi nanoparticles from bulk bismuth granules. The SA-Bi nanoparticles with an average size of 60nm were characteri zed by TEM, XRD and other techniques. The results show that SA-Bi nanoparticles have the same crystalline structure as that of bulk bismuth and exhibit good oi l solubility. The tribological properties of SA-Bi nanoparticles as a additive in oil were evaluated on a four-ball tester. The tribological results show that the SA-Bi nanoparticles have good antiwear performance. In addition, the mecha nism for formation of SA-Bi nanoparticles was discussed.展开更多
ZnO nanorods were successfully synthesized by thermal decomposition of Zn（OH）2 in the ionic （liquid） 1-butyl-3-ethylimidazolium tetrafluoroborate, and the growth mechanism of ZnO micro-crystallites was presumed. T...ZnO nanorods were successfully synthesized by thermal decomposition of Zn（OH）2 in the ionic （liquid） 1-butyl-3-ethylimidazolium tetrafluoroborate, and the growth mechanism of ZnO micro-crystallites was presumed. Their structure and morphology were characterized by means of transmission electron microscopy（TEM）, infrared spectroscopy（IR）, and X-ray powder diffraction（XRD）. The TEM results （indicate） that the diameters and lengths of the ZnO nanorods were ca. 25 nm and ca. 150 nm, respectively. The IR spectra show that the ZnO nanorods were modified by 1-butyl-3-ethylimidazolium tetrafluoroborate. The XRD pattern reveals that the prepared ZnO nanorods belong to the hexagonal crystal system. The above-mentioned results indicate that ionic liquid can not only act as a reaction medium but also modify ZnO nanorods in the reaction.展开更多
文摘在溶液中化学合成了有机化合物表面修饰的油溶性 Ce F3纳米微粒 ,初步探讨了表面修饰 Ce F3纳米微粒的制备条件 ,并表征了表面修饰 Ce F3纳米微粒的结构和性能。结果表明 ,表面修饰 Ce F3纳米微粒添加剂具有良好的减摩抗磨性 ,并且可以有效地提高基础油的承载性能 ,其性能优于商品添加剂 T2 0 2 (ZDDP)。
文摘Oleate/PSt/TiO 2 nanosphere composites were prepared by seeding polymerization and characterized by TEM、FTIR、DSC and TGA. The antiwear ability of the oleate/PSt/TiO 2 nanospheres as additives in base oil was evaluated. The results indicate the oleate/PSt/TiO 2 nanosphere composites have good wear and extreme pressure resistance.
文摘Pyridinium dioctadecyldithiophosphate(PyDDP) modified nickel nanoparticles were prepared by chemical reduction method in water toluene mixing solution. Byusing FT IR, TG, XRD and TEM, the resultant surface modified Ni particles were characterized. The results show that the nano Ni core has an average diameter of 12nm with a fcc structure. The hydrophobic groups formed by the organic layer on the surface of Ni particles make the nanoparticles have good stability andoil solubility.
文摘Sb 2 O 3 nanoparticles were prepared via hydrolyze reaction of SbCl 3 in water - ethanol solution,and were char - acterized by XRD and TEM.In addition,the effect of reactive condition on particle size was also investigated systematically.When the sample modified by coupling agent was applied in formulation of plastic,the mechanical property and flame retardancy was better than micron sample.
文摘In this paper, we reported, for the first time, a novel and simple solution me thod for preparing stearic acid (SA) modified Bi nanoparticles from bulk bismuth granules. The SA-Bi nanoparticles with an average size of 60nm were characteri zed by TEM, XRD and other techniques. The results show that SA-Bi nanoparticles have the same crystalline structure as that of bulk bismuth and exhibit good oi l solubility. The tribological properties of SA-Bi nanoparticles as a additive in oil were evaluated on a four-ball tester. The tribological results show that the SA-Bi nanoparticles have good antiwear performance. In addition, the mecha nism for formation of SA-Bi nanoparticles was discussed.
文摘ZnO nanorods were successfully synthesized by thermal decomposition of Zn（OH）2 in the ionic （liquid） 1-butyl-3-ethylimidazolium tetrafluoroborate, and the growth mechanism of ZnO micro-crystallites was presumed. Their structure and morphology were characterized by means of transmission electron microscopy（TEM）, infrared spectroscopy（IR）, and X-ray powder diffraction（XRD）. The TEM results （indicate） that the diameters and lengths of the ZnO nanorods were ca. 25 nm and ca. 150 nm, respectively. The IR spectra show that the ZnO nanorods were modified by 1-butyl-3-ethylimidazolium tetrafluoroborate. The XRD pattern reveals that the prepared ZnO nanorods belong to the hexagonal crystal system. The above-mentioned results indicate that ionic liquid can not only act as a reaction medium but also modify ZnO nanorods in the reaction.
