微乳液法制备纳米二氧化硅及表征  

Preparation in W/O Microemulsions and Characterization of Nanometer Silica Particles

作　　者：孙少学[1] 伍林[1] 易德莲[1] 秦晓榕[1] 曹淑超[1] 张敏[1] 

机构地区：[1]武汉科技大学化工学院,湖北武汉430081

出　　处：《化工时刊》2006年第5期9-11,共3页Chemical Industry Times

摘　　要：制备Ttiton X-10／正辛醇／环己烷／水（或氨水）油包水（W／O）型微乳液，讨论了微乳液相关性质与含水量的关系；以正硅酸乙酯（TEOS）为硅源，在制备的微乳液中受控水解制得纳米SiO2粒子，并用FT-IR、TEM、比表面测定进行表征；结果显示含水量和硅源浓度与粒子尺寸相关，TEM照片显示粒径40～80nim。Triton X- 10/1 - octanol/cyclohexane/water （or ammonia aqueous solution）W/O microemulsion system was prepared, and the relationship between the property of microemulsions and the water content was studied. By controlling hydrolysis of tetraethylorthosilicate（TEOS） in the microemulsions, nano- sized silica particles were synthesized. The particles were characterized with FT- IR, TEM and specific surface area. The results show that the concentration of water and TEOS relate with the diameter of particles. The particle diameters are 40 nm- 80 nm.

关 键 词：纳米二氧化硅 W/O型微乳液 受控水解 

分 类 号：O613.72[理学—无机化学]