| 超细二氧化硅的制备与改性 |
| |
| 引用本文： | 洪立福,金鑫.超细二氧化硅的制备与改性[J].北京化工大学学报(自然科学版),2004,31(5):69-72. |
| |
| 作者姓名： | 洪立福 金鑫 |
| |
| 作者单位： | 北京化工大学理学院;北京 100029 |
| |
| 摘 要： | 采用Na2O·nSiO2与CO2为原料,加入丙三醇,用非离子表面活性剂聚乙二醇作为分散剂,制备出了和气相法接近的高分散超细二氧化硅粉末。用三甲基一氯硅烷(CTMS),二甲基二氯硅烷(DCDMS)改性沉淀二氧化硅,并对改性后样品的密度、吸油值、硅羟基含量进行了测定,用TEM、激光粒度分析仪、红外以及BET法对其进行了表征。
|
| 关 键 词： | 高分散 超细 二氧化硅 丙三醇 改性 高分散 超细 二氧化硅 丙三醇 改性 |
| 收稿时间： | 2003-10-24 |
| 修稿时间： | 2003年10月24日 |
Preparation and modification of highly dispersed superfine silica |
| |
| Hong Li-fu,Jin Xin.Preparation and modification of highly dispersed superfine silica[J].Journal of Beijing University of Chemical Technology,2004,31(5):69-72. |
| |
| Authors: | Hong Li-fu Jin Xin |
| |
| Institution: | College of Science; Beijing University of Chemical Technology; Beijing 100029; China |
| |
| Abstract: | Highly dispersed silica powders near to the qualities of fumed silicas were obtained using the precipitation technique with sodium metasilicate solution and carbon dioxide. The glycerol solution was used in the precipitation process. The surfactants were used as the dispersant.Then the precipitated silicas were modified with trimethylchlorosilane and dimethyldichlorosilane. The structure and physical properties of SiO 2 powders were characterized by TEM, particle size analyzing machine, IR and BET methods. |
| |
| Keywords: | highly dispersed superfine silica glycerol modification |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《北京化工大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《北京化工大学学报(自然科学版)》下载免费的PDF全文 |
