摘要
A kind of experimental setup, named as UC-1500, was designed. SiO2 nanoparticles preparing by ultrasonic-mechanical method were studied, and the effects of ultrasound field, dispersant concentration and grinding time on grain-size and appearance of SiO2 nanoparticles were investigated. The results showed that the grain-size was smaller and the stability of SiO2 nanoparticles was better in ultrasonic field.The optimum values of such reaction factors as the space between two adjacent teeth of stirring rad, grinding time, dispersant concentration and the rotating speed of stirring rod were 15 mm, 9 h, 0.09 g·L -1 and 300 r·min -1 , respectively.With grinding time being the main factor, the effects of dispersant concentration, the rotating speed of stirring rod and the space between two adjacent teeth of stirring rod decreased successively.
A kind of experimental setup, named as UC-1500, was designed. SiO2 nanoparticles preparing by ultrasonic-mechanical method were studied, and the effects of ultrasound field, dispersant concentration and grinding time on grain size and appearance of SiO2 nanoparticles were investigated. The results showed that the grain-size was smaller and the stability of SiO2 nanoparticles was better in ultrasonic field. The optimum values of such reaction factors as the space between two adjacent teeth of stirring rad, grinding time, dispersant concentration and the rotating speed of stirring rod were 15 mm, 9 h, 0.09 g·L^-1 and 300 r·min^-1, respectively. With grinding time being the main factor, the effects of dispersant concentration, the rotating speed of stirring rod and the space between two adjacent teeth of stirring rod decreased successively.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2006年第1期210-213,共4页
CIESC Journal
基金
山东省教育厅重点科技项目(2003A03).~~
关键词
超声
纳米二氧化硅
机械粉碎
正交实验
ultrasound
nanoparticles silicon dioxide
mechanical disintegration
orthogonal experiment
