水热法制备球形超细铜粉
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摘要
为探究影响超细铜粉分散性的影响因素,以超细铜粉的粒径为指标,应用正交设计法,探究粉体制备工艺中常用的4种处理方式对超细铜粉粒径的影响。结果表明,当采用5%PVP,3%NaH_2PO_2,20%乙醇混合溶液,80℃水浴条件下,1 k W超声处理1 h后,可得到分散性较好,平均粒径为0.43μm,基本为球形的超细铜粉。
In order to explore factors influencing the dispersibility of ultrafine copper powder,by taking particle diameter of ultrafine copper powder as an index,orthogonal experimental design method was applied to investigate four treatment methods that are commonly used in the powder preparation process. The results showed that in mixed solution with 5% PVP,3% NaH_2PO_2 and 20% ethanol after 1000 W ultrasonic treatment for 1 h under 80°C water bath condition,ultrafine copper powder were obtained which has better dispersibility,an average particle diameter of 0.43 μm,and substantially spherical shape.
In order to explore factors influencing the dispersibility of ultrafine copper powder,by taking particle diameter of ultrafine copper powder as an index,orthogonal experimental design method was applied to investigate four treatment methods that are commonly used in the powder preparation process. The results showed that in mixed solution with 5% PVP,3% NaH_2PO_2 and 20% ethanol after 1000 W ultrasonic treatment for 1 h under 80°C water bath condition,ultrafine copper powder were obtained which has better dispersibility,an average particle diameter of 0.43 μm,and substantially spherical shape.
引文
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[2]杨应彬,刘颖,叶金文.金属纳米粉末的制备方法[J].金属功能材料,2003,10(5):40~41.
[3]ZHENG X T,YE Y L,YANG Q,et al.Ultrafine nickelcopper carbonate hydroxide hierarchical nanowire networks for high-performance supercapacitor electrodes[J].Chemical Engineering Journal,2016,290(15):353-360.
[4]杜多林,徐盛明,李林艳.化学还原法制备超细铜粉的研究进展[J].金属矿山,2007,37(7):13-17.
[5]邵梓桥,毕恒昌,谢骁.三氧化钨/氧化银复合材料的水热法合成及其光催化降解性能研究[J].物理学报,2018,67(16):1-12.
[6]马荣骏.湿法冶金原理[M].北京:冶金工业出版社,2007:748-750.
[7]罗电宏,马荣骏.对超细粉末团聚问题的探讨[J].湿法冶金,2002,21(2):58-60.
[8]黄锡文,葛庆仁,谢振风.超细铜粉制备过程中的粒度分布行为分析[J].化学反应工程与工艺,1996,12(4):420-421.
[9]王文清.歧化反应制备超细铜粉[J].武汉工业学院学报,2008,27(2):38-40.
[10]王金敏,高濂.单分散超细ZnO粉体的制备与表征[J].无机化学学报,2003,19(11):1249-1252.
[11]陈永言,黄清安,邓伯华.NaH2PO2对锌-镍合金电沉积的影响的研究[J].武汉大学学报(自然科学版),1997,43(2):177-178.
[12]HROVAT M I,WADE C G.Absolute measurements of diffusion coefficients by pulsed nuclear magnetic resonance[J].Journal of Chemical Physics,1980,73(5):2509-2510.
[13]于梦娇,王玉棉,侯新刚.超声条件下水合肼还原制备纳米铜粉[J].粉末冶金工业,2007,17(6):20-23.
[14]CONNORS K A.Chemical kinetics[M].New York:VCH Publishers,1990:658-699.
[15]MOQUIN P H L,TEMELLI F.Kinetic modeling of hydrolysis of canola oil in supercriticalmedia[J].Supercrit Fluids,2008,45(1):94-101.
[16]MUGNIER E,PASQUET I,BAENABE A,et al.Nanocomposites of metallic copper and spinel ferrite films:growth and self-assembly of copper particles[J].Thin Solid Films,2005,493(1~2):49-53.
[17]KOBIYAMA M,INAMI T,OKUDA S.Mechanical behavior and thermal stability of nanocrystalline copper film prepared by gas deposition method[J].Scripta Materialia,2001,44(8):1547-1551.
[18]WU S H,CHEN D H,Synthesis of high-concentration Cu nanoparticles in aqueous CTAB solutions[J].Journal of Colloid and Interface Science,2004,273(1):165-169.