Manufacturing Microporous Foam Zinc Materials with High Porosity By Electrodeposition

武汉理工大学学报-材料科学版(英文版), 2011, 26(5): 843-846. doi: 10.1007/sl1595-0322-1

^1, , ^2,

1.School of Metallurgical Science & Engineering, Central South University, Changsha 410083, China;Postdoctoral Ambulatory Station of Metallurgical Engineering, Central South University, Changsha 410083, China

2.School of Metallurgical Science & Engineering, Central South University, Changsha 410083, China

Manufacturing Microporous Foam Zinc Materials with High Porosity By Electrodeposition

TIAN QinGhua ^1, , GUO Xueyi ^2,

2.School of Metallurgical Science & Engineering, Central South University, Changsha 410083, China

Keywords： electrodeposition

In order to get foam zinc materials of porous metal electrode,a novel method for preparing foam zinc was proposed,in which the polyurethane foam with diameter of 0.3 mm as substrate was processed by degreasing,roughening,activating,electroless plating and electrodeposition.The main factors affecting the process,such as ZnSO4 content,temperature,pH value,current density,and electrodes distance,were investigated comprehensively.The optimal process conditions are 250 g/L ZnSO4,20 g/L Al2(SO4)3,40 g/L KAl(SO4)2,30 g/L Na2SO4,pH=3.5,4.0 cm of electrodes distance and 0.04 A/cm2 current density at 30 ℃.The result shows that adding ultrasonic on the process can elevate the deepening plating ability and current efficiency.Foam zinc material with a high porosity of 92.2％ and a three-dimensional network structure can be fabricated by electrodeposition.

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Manufacturing Microporous Foam Zinc Materials with High Porosity By Electrodeposition

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