纳米镍铜复合粉体在乙醇溶液中的分散性能  

Dispersing properties of nanometer composite nickel and copper powders in alcohol solvent

作　　者：刘广[1] 张振忠[1] 路承杰[1] 陈骞[1] 张少明[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《化学工程》2010年第4期77-80,共4页Chemical Engineering(China)

基　　金：国家自然科学基金项目资助(10502025);江苏省高校自然基金(05KJB1300421);南京工业大学引进人才科研启动基金(51303021)

摘　　要：在对直流氢电弧蒸发法制备的纳米镍铜复合粉体的Zeta电位测量的基础上,采用非离子型和阴离子型2类分散剂中的各种材料,研究了各种材料超声时间和加入质量分数对纳米粉体在无水乙醇溶液中分散性能的影响。研究结果表明:粉体的分散效果随着超声时间和分散剂加入质量分数的增加呈现先增大后减小的趋势;阴离子型分散剂中油酸对镍铜复合粉体的分散效果最好,在乙醇溶液中质量分数为2.5%的油酸的最佳超声时间为6 min。On the basis of Zeta potential measurement of the nanometer composite nickel and copper powders prepared by the direct-current H arc plasma evaporation, the effects of supersonic time and mass fraction of the nonionic dispersant and anionic dispersant on the dispersing property of the powders in alcohol solvent were systematically studied. The results show that the dispersion effect of the powders firstly increases and then decreases with increasing the ultrasonic dispersing time and dispersant mass fraction. Oleic acid has the best dispersion effect on nickel and copper powders among different anionic dispersants. The best ultrasonic dispersing time is 6 min for mass fraction 2.5 % of oleic acid in alcohol solvent.

关 键 词：直流电弧蒸发 纳米镍铜复合粉体 分散剂 超声时间 

分 类 号：TB383.1[一般工业技术—材料科学与工程]