不同分散剂对超细镍粉分散性能的影响  

Effects of different dispersants on the dispersion properties of ultrafine nickel powder

作　　者：李黎瑛[1] 张振忠[1] 赵芳霞[1] 寿奉良[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：《电子元件与材料》2012年第6期52-55,共4页Electronic Components And Materials

基　　金：国家自然科学基金资助项目(No.10502025);省高校自然基金资助项目(No.05KJB1300421)

摘　　要：通过测量直流电弧等离子体法制备的超细镍粉的Zeta电位,选取油酸(OA)、十二羟基硬脂酸(12HSA)、十二烷基苯磺酸钠(SDBS)、六偏磷酸钠(SHMP)、甲基丙烯酸甲酯(MMA)及司班-85(Span-85)作为分散剂,系统研究了六种分散剂在不同超声时间和不同分散剂浓度下,对超细镍粉的分散性能的影响。结果表明:随着超声时间和分散剂加入浓度的提高,粉体分散效果呈现先变好后变差趋势;推荐超细镍粉的最佳分散工艺为:添加质量分数3%的六偏磷酸钠进行分散,超声时间为25 min。Abstract： The Zeta potentials of ultrafine nickel powders which were prepared by DC arc plasma method were measured, the influences of supersonic dispersing time and dispersant concentration on the dispersion properties of the ultrafine nickel powders were studied systematically, in which OA, 12HAS, SDBS, SHMP, MMA, Span-85 were used. The results show that, with the increasing of ultrasonic dispersing time, the dispersion effect of the ultrafine nickel powders increases first and then decreases, dispersant concentration has the same impact on the dispersion properties of the powders. The recommended best processing parameters of dispersing ultrafine nickel powder are： the mass fraction of SHMP for 3% and the ultrasonic time for 25 mins.

关 键 词：直流电弧等离子体法 超细镍粉 ZETA电位 分散性能 

分 类 号：TG146.15[一般工业技术—材料科学与工程]