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›› 2008, Vol. 8 ›› Issue (5): 1003-1007.

• 材料工程专栏 • 上一篇    下一篇

以PEG600为模板液相还原法制备片状铜粉

陈明伟 朱永平 张伟刚   

  1. 中国科学院过程工程研究所多相复杂系统国家实验室 2. 中国科学院过程工程研究所多相复杂系统国家实验室 中国科学院过程研究所多相反应开放实验室
  • 收稿日期:2008-06-23 修回日期:2008-08-04 出版日期:2008-10-20 发布日期:2008-10-20
  • 通讯作者: 张伟刚

Preparation of Flake-shaped Copper Particles with PEG600 Template

CHEN Ming-wei ZHANG Wei-gang   

  1. State KEY laboratory of Multi-Phase Complex System, Institute of Process Engineering Key Lab of Multi-phase Reactions, Institute of Process Engineering. Chinese Academy of Sciences
  • Received:2008-06-23 Revised:2008-08-04 Online:2008-10-20 Published:2008-10-20
  • Contact: ZHANG Wei-gang

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摘要： 采用液相化学还原法，在模板剂PEG600存在的情况下，以NaH2PO2为还原剂，制备了粒径10~40 mm、厚1.5~2.5 mm、表面光滑的片状超细铜粉. 考察了还原溶液pH值、反应温度、CuSO4浓度、PEG600加入量对片状铜粉的影响. 实验得出优化工艺条件为：CuSO4浓度0.2 mol/L, NaH2PO2浓度0.14 mol/L，模板剂PEG600加入量8 mL，温度80℃, pH 0.5. 粉末XRD谱图和SEM分析显示，产品为较为规则的片状铜粉.

关键词: 片状铜粉, PEG600, 液相还原法

Abstract: The flake-shaped crystalline copper particles with 10~40 mm in diameter and 1.5~2.5 mm in thickness were prepared by using liquid phase reduction method with NaH2PO2 as reducing agent and PEG600 as template. The effects of pH value of reductive solution, reaction temperature, concentration of CuSO4 and volume of PEG600 on the preparation of flake-shaped copper particles were studied. The optimum conditions were obtained as follows: the concentration of CuSO4 and NaH2PO2 were 0.2 and 0.14 mol/L, respectively, the volume of PEG600 8 mL, the reaction temperature 80℃, and the pH value 0.5. The prepared product was proved to be pure flake-shaped copper particles through the analysis of XRD and TEM.

Key words: flake-shaped copper particles, PEG600, liquid phase reduction method

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