碱性介质中表面活性剂对超细锌粉分散性能的影响  

Effect of surfactant on the dispersion properties of ultrafine zinc powder in alkaline medium

作　　者：李辉[1] 张振忠[1] 赵芳霞[1] 王鹏[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》2010年第4期70-73,共4页Electronic Components And Materials

基　　金：江苏省科技厅社会发展资助项目(No.BS2007120)

摘　　要：首先,用直流电弧等离子体法制备超细锌粉,并通过测定其表面Zeta值,选取了三种表面活性剂。利用硝酸镧作缓蚀剂,借分光光度法,研究了超声分散时间、硝酸镧加入量以及表面活性剂浓度对碱性介质中超细锌粉分散性能的影响。结果表明,最佳分散工艺为:超声功率560W,超声分散时间20min,硝酸镧与十六烷基三甲基溴化铵加入的质量分数分别为10%和6%,从而解决了超细锌粉在碱性电池中的应用问题。First, the ultrafine zinc powder was fabricated by the DC arc plasma method. Three kinds of surfactants were selected through measuring the Zeta values of surface for obtained zinc powder. Using La（NO3）3 as corrosion inhibitor, the effects of supersonic dispersing time, added amount of La（NO3）3 and concentration of surfactant on the dispersing properties of prepared ultrafine zinc powder in alkaline medium were studied by the spectrophotometric method. The results show that the optimal dispersing process is as follows： supersonic power of 560 W, supersonic dispersing time of 20 min, La（NO3）3 of 10% and cetyltrimethylammonium bromide （CTAB） of 6% （mass fraction）. The applied problem of ultrafine zinc powder in alkaline battery is solved via above process.

关 键 词：超细锌粉 直流电弧等离子体法 表面活性剂 缓蚀剂 超声分散时间 分散性能 

分 类 号：TM911[电气工程—电力电子与电力传动]