亜鉛電解採取における高分子添加剤の効果

概要

論文の詳細を見る
Zn electrodeposition behavior and the morphology of deposited Zn were studied in the electrowinning solution containing polymer additives such as gelatin and polyethylene glycol (PEG). The molecular weight of gelatin and PEG were determined by gel permeation chromatography. During Zn deposition, the cathode potential was shifted to less noble direction and polarization resistance was increased with increasing the concentration or the molecular weight of gelatin and PEG added to the electrolytic solution. However, when the molecular weight of these additives was increased to exceed 104, the cathode was depolarized and polarization resistance was decreased with increasing their molecular weight. The crystal grain size and the intensity of (002) orientation index of deposited Zn became smaller when the concentration or the molecular weight of additives was increased.
社団法人資源・素材学会の論文
1999-09-25