超细氧化锌改性制备高导电性粉末  

Preparation of Ultrafine High- conductivity Doped ZnO Powders

作　　者：李贤连 刘志华 

机构地区：[1]湖南神斧集团向红机械化工有限责任公司,湖南岳阳414100

出　　处：《广州化工》2010年第2期96-98,共3页GuangZhou Chemical Industry

摘　　要：以纤锌矿型氧化锌为原料，用后合成法制备了铝掺杂氧化锌导电粉末并在抗静电环氧树脂漆中应用，采用x-射线衍射（XRD）、扫描电镜（SEM）、化学分析等方法表征导电氧化锌的晶体结构、形貌和化学组成。结果表明，后合成法保持了氧化锌的纤锌矿结构，氧化锌的表面形貌发生了明显的变化。电阻测试结果表明白色氧化锌的电阻率从10Ω·cm降到了10^2Ω·cm，Al掺杂量和理论计算结果相符。抗静电应用结果表明，在氧化锌添加量为20％时，薄涂漆膜的表面电阻为10^6Ω。High - conductivity doped ZnO powders were prepared by post - synthesized method with wurtzite structural ZnO. The structure, morphology and chemical composition of doped ZnO were characterized by XRD, SEM and chemical analysis. The results showed that the original wurtzite structure was preserved and the morphology of doped ZnO changed remarkable. The resistivity of doped ZnO decreased from 10^6Ω cm to 10^2Ω· cm when Al content was 3.4%. The resistance of epoxy coating was 10^6Ω when amount of doped ZnO was up to 20% in epoxy resin.

关 键 词：导电氧化锌 改性 后合成法 

分 类 号：TQ132.41[化学工程—无机化工] TG146.11[一般工业技术—材料科学与工程]