大尺寸二氧化硅微球的合成与表征  

Preparation and Characterization of SiO_2 Microbeads with Lager Size

作　　者：刘岩[1] 于清波[1] 白晓[1] 李婷婷[1] 沈启慧[1] 

机构地区：[1]吉林化工学院化学与制药工程学院,吉林吉林132022

出　　处：《吉林化工学院学报》2016年第3期25-27,35,共4页Journal of Jilin Institute of Chemical Technology

基　　金：吉林省教育厅科研项目(2013-317);吉林省科技发展计划项目(20130101132JC);吉林市科技计划项目(201464057)

摘　　要：采用Stber法,在水体系中制备大尺寸二氧化硅微球,选取不同硅烷为原料,通过优化硅烷浓度、氨水浓度、电解质浓度,得到粒度分布相对均一的二氧化硅微球.通过XRD和SEM表征证实得到的微球为二氧化硅材质,并且形貌为球形,粒度为1～2μm的微球,无粘连等现象.结果表明,选取巯基硅烷加入量为800μL、氨水加入量为50μL、电解质浓度为2.85 mmol/L,最终得到单分散性较好的大尺寸二氧化硅微球,具有一定的应用前景.Monodispersed micrometer Si O_2 microbeads were synthesized by sol- gel method in water,Stber.Different kinds of silanes were used to prepare the Si O_2 microbeads with narrow particle size distribution. The Si O_2 microbeads were characterized by XRD SEM,and these microbeads were silicon dioxide and well sphere with diameter 1 ～ 2 μm. Results showed that the Si O_2 microbeads were gotten when the 2. 85 mmol / L KCl solution mixed with 800 μL MPTMS and 50 μL aqueous ammonia.

关 键 词：微球 大尺寸 制备 表征 

分 类 号：O611.4[理学—无机化学]