ATO/CaSO_4复合导电粉的制备及表征  

Preparation and characterization of ATO/CaSO_4 composite conductive powder

作　　者：田浩[1] 古文全[2,3] 聂登攀[2] 王振杰[2] 薛涛[2,3] 

机构地区：[1]贵州大学化学与化工学院,贵阳550003 [2]贵州省冶金化工研究所,贵阳550014 [3]贵州省纳米材料工程中心,贵阳550014

出　　处：《化工新型材料》2012年第6期100-102,共3页New Chemical Materials

摘　　要：复合导电粉具有良好的导电性、稳定性和分散性,广泛用于防静电、电磁屏蔽等领域。以硫酸钙晶须为载体,采用共沉淀法在其表面包覆一层锑掺杂氧化锡(ATO)制备了ATO/CaSO4复合导电粉,研究了焙烧温度对导电粉电阻率的影响。运用热重-差热分析(TG-DSC)和X-射线衍射(XRD)对产物进行了表征,并通过扫描电镜(SEM)观察了粉体的形貌。结果表明,最佳的焙烧温度为650℃,与TG-DSC得到的结论相一致。Composite conductive powder had good conductivity, stability and dispersion and was widely used in anti- static, electromagnetic shielding and other fields. Composite conductive powder（ATO/CaSO4 ）of a calcium sulfate matrix coated with antimony-doped tin oxide was prepared by a chemical coprecipitation method and the effect of the conductive powder＇s resistivity on the calcination temperature was investigated. The product was characterized using TG-DSC and XRD and the conductive powder was examined by SEM. The result showed the optimum calcination temperature was 650℃ in accord with the conclusion of TG-DSC.

关 键 词：共沉淀 硫酸钙晶须 锑掺氧化锡 包覆 

分 类 号：TB383.1[一般工业技术—材料科学与工程]