多晶硅副产物四氯化硅制备沉淀白炭黑  

Precipitated Silica Prepared by Polysilicon By-Product Silicon Tetrachloride

作　　者：吴明明[1] 谈瑛[2] 侯清麟[1,2] 王吉清[1] 

机构地区：[1]湖南工业大学绿色包装与生物纳米技术应用省重点实验室,湖南株洲412007 [2]湖南工业大学包装新材料与技术重点实验室,湖南株洲412007

出　　处：《湖南工业大学学报》2011年第2期18-21,共4页Journal of Hunan University of Technology

基　　金：湖南省科技计划基金资助重点项目(2009GK2012);湖南工业大学研究生创新基金资助项目(CX1017)

摘　　要：以多晶硅副产物四氯化硅和水玻璃为硅源,聚乙二醇和无水乙醇为添加剂,制备了沉淀白炭黑。研究了反应温度、体系pH值、水玻璃浓度、聚乙二醇和无水乙醇的加入量对白炭黑粒径大小的影响。在最佳工艺条件下,可制得一次粒子平均粒径为284 nm的白炭黑粉末。采用扫描电镜、透射电镜、傅立叶红外光谱仪、X射线衍射仪和激光纳米粒度仪对所制得沉淀白炭黑的结构等进行了表征。Precipitated silica was prepared with silicon tetrachloride and water glass as silica precursor,polyethylene glycol（PEG） and absolute alcohol as additives.The effects of final solution pH,reaction temperature,water glass concentration and the addition of polyethylene glycol and anhydrous ethanol on particle size of silica were investigated.At the optimal technological conditions,amorphous silica particles were prepared with average diameters of 284nm.The structure of the powders were characterized by scanning electron microscopy（SEM）,transmission electron microscopy（TEM）,Fourier transform infrared spectroscopy（FTIR）,X-ray diffraction（XRD） and laser nano-particle size analyzer.

关 键 词：四氯化硅 粒径 白炭黑 表征 

分 类 号：TQ127.2[化学工程—无机化工]