摘要：以(C₂H₅)₄SiO₄、SnCl₄·5H₂O为原料,采用分步水解法制备以SnO₂为芯材、SiO₂为壳材的复合型SnO₂-SiO₂纳米颗粒,以扫描电镜(SEM)观察纳米材料的形貌,并用红外光谱(IR)、X射线光电子能谱(XPS)表征了SnO₂-SiO₂纳米颗粒的结构,研究不同核壳物质的量比的SnO₂-SiO₂纳米颗粒对明胶膜的抗静电性能的影响。结果表明:掺加SnO₂-SiO₂纳米颗粒的明胶膜具有良好的抗静电能力,随着复合颗粒加入量的增加,表面电导和明胶膜的光学密度都随之增加。

关键词：纳米颗粒；核壳结构；明胶膜；抗静电性能

Abstract： The nano-meter SnO₂-SiO₂ core -shell particles were synthesized by hydrolysis method, using (C₂H₅)₄SiO₄ and SnCl₄·5H₂O as raw materials. The surface texture of nano-meter SnO₂-SiO₂ particles was observed by SEM， and its structure was characterizated with IR and XPS. The influence of different molar rate of SnO₂ and SiO₂ on electric conduction rate of the film was studied. The results indicated that the gelatin film mixed by the SnO₂-SiO₂ nano-meter core-shell particles had good anti-static property. The electric conduction rate and optical density of the film both increased along with the mass fraction of the core-shell nano-particles. 

Keywords： nano-meter particles； core -shell structure； gelatin film； anti-static property