超细镀银铜粉的制备及其性能研究  

Preparation and Properties of Silver Coated Copper Powders

作　　者：曹晓国[1] 吴伯麟[2] 

机构地区：[1]广东工业大学材料与能源学院,广东广州510090 [2]桂林工学院材料与化学工程系,广西桂林541004

出　　处：《机械工程材料》2005年第9期31-34,共4页Materials For Mechanical Engineering

基　　金：广西自然科学基金资助项目(桂科自0135055);教育部重点项目基金资助项目(教技司2001-235)

摘　　要：采用置换反应法制备镀银铜粉,通过使用螯合萃取剂RE608一次性制得具有常温抗氧化能力的镀银铜粉;研究了RE608的用量、反应温度、反应时间和AgNO3用量对镀银铜粉的抗氧化性和煅烧温度对导电性的影响。结果表明:试验条件下,RE608用量越多越好,从成本考虑使用量以40mL为宜;反应温度以80℃为佳;反应时间以20 min为宜;AgNO3浓度越小越好。Siver coated copper powders with antioxidation behavior at normal temperatures were prepared with substitutional reaction method and using RE608 as chelate extractive agent. The influence of the amount of AgNO3, reaction temperature, reaction time and amount of RE608 on the oxidation resistance and conductibility of silver coated copper powders was studied. The more the amount of RE608 the better the properties of prepared silver coated copper powders, The optimal preparation conditions were at a reaction temperature of 80℃, with a reaction time of 20 min and low concentration of AgNO3.

关 键 词：镀银铜粉 螯合萃取剂 抗氧化性 导电性 

分 类 号：TG146.1[一般工业技术—材料科学与工程]