Polynitroaniline as brightener for zinc-nickel alloy plating from non-cyanide sulphate bath

被引：19
|
作者：
Sachin, H. P. [1 ]
Achary, Ganesha [1 ]
Naik, Y. Arthoba [1 ]
Venkatesha, T. V. [1 ]
机构：
[1] Kuvempu Univ, Sch Chem Sci, Dept Chem, Shankaraghatta 577451, India
来源：
BULLETIN OF MATERIALS SCIENCE | 2007年 / 30卷 / 01期
关键词：
electrodeposition; electropolymerization; polynitroaniline; SEM studies; Zn-Ni alloy;
D O I：
10.1007/s12034-007-0010-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electro-polymerization of orthonitroaniline was carried out on graphite electrode in hydrochloric acid medium. Zinc-nickel alloy deposition was carried out in the presence of polynitroaniline in acid sulphate bath. The bath constituent and bath variables were optimized through Hull cell experiments. The current efficiency and throwing power were measured. High shift of potential towards more cathodic direction was observed in presence of addition agent. Corrosion resistance test revealed good protection of base metal by zinc-nickel coating obtained from the developed electrolyte. SEM photomicrograph shows fine-grained deposit in the presence of addition agent. The consumption of brightener in the lab-scale was 0.01 gL(-1) for 1000 amp-h.
引用
收藏
页码：57 / 63
页数：7
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