ATO/CaSO4复合导电粉制备的研究  

Preparation research of ATO/CaSO_4 composite conductive powders

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10期99-101,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、电磁屏蔽等诸多领域。采用共沉淀法在硫酸钙晶须表面包覆一层ATO来制备ATO/CaSO4复合导电粉,并研究制备条件对导电粉电阻率的影响。结果表明,最佳制备条件为:Sb/Sn摩尔比1:10,硫酸钙晶须浓度7.5%,水解温度35℃,水解pH6,煅烧温度650℃,煅烧时间2h。Composite conductive powders have good conductivity, stability and dispersion and is widely used in anti- static, electromagnetic shielding and other fields. Composite conductive powders （ATO/CaSO4） of a calcium sulfate matrix coated with antimony-doped tin oxide was successfully prepared by a chemical co-precipitation technique and the effect of preparation conditions on the resistivity of conductive powders were investigated. The results showed that the better prepa- ration conditions were Sb/Snl： 10, the calcium sulfate whisker suspension concentration 7. 5%, hydrolysis temperature 35℃, hydrolysis pH value 6, calcination temperature 650℃ and calcination time 2h.

关 键 词：共沉淀 硫酸钙晶须 锑掺氧化锡 包覆 

分 类 号：TB383.3[一般工业技术—材料科学与工程]