聚乙烯亚胺溶液制备球形电解铜粉

Journal of the Japan Institute of Metals and Materials Pub Date : 2021-11-01 DOI:10.2320/jinstmet.j2021032

K. Ochi, M. Sekiguchi, S. Oue, Hiroaki Nakano

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摘要

研究了在电解液中加入聚乙烯亚胺(PEI)对球形电解铜粉的电解效果。为了确定电沉积球形铜粉的最佳电解条件，我们研究了PEI的分子量、PEI的加入量、电流密度和阴极材料对电沉积铜粉形貌的影响。采用扫描电子显微镜、激光折射散射粒度分布测量仪和X射线衍射仪对电沉积铜粉进行了分析。结果表明，在含有0.126mol·dm−3 cu2 +、0.5mol·dm−3游离h2so4和- 3 PEI的溶液中，以3000A·m−2的电解速度，每10 ~ 60s刮取铜粉，可以得到平均分子量为10000的球形铜粉。[doi:10.2320] jinstmet。J2021032

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Production of Spherical Electrolytic Copper Powder from the Solution Containing Polyethyleneimine

It was investigated whether the spherical electrolytic copper powder could be electrolyzed by adding polyethyleneimine ( PEI ) in the electrolytic solution. In order to identify the optimum electrolysis conditions for the electrodeposition of spherical copper powder, we investigated the e ﬀ ect of molecular weight of PEI, the amount of PEI added, the current density, and the cathode material on the morphology of electrolytic copper powder. The electrodeposited copper powder was analyzed with a scanning electron microscope, a laser di ﬀ raction scattering particle size distribution measuring device, and an X – ray di ﬀ ractometer. It was found that the spherical copper powder can be obtained by electrolysis at 3000A·m − 2 scraping copper powder every 10 to 60s in solution containing 0.126mol·dm − 3 Cu 2+ , 0.5mol·dm − 3 free H 2 SO 4 and − 3 PEI with average molecular weight 10000. ［ doi:10.2320 jinstmet.J2021032

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Journal of the Japan Institute of Metals and Materials

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