| 摘要 |
<p>The invention relates to a noncyanidic alkaline zinc-plating electrolyte comprising 10.5g/l zinc oxide, 125g/l natrium hydroxide, 3ml/l polyaminocarboxylic purifying agent, 3ml/l benzyl nicotinate and 8...10ml/l zinc dispersion agent, said zinc dispersion agent consists of hydrosoluble polymer, containing 10...20 % polyaminohydroxylic polymer, resulting by polycondensing ethylene diamine or diethylene triamine with epichlorohydrine and 80 ...90 % polymers with quaternary ammonium groups, resulting from the reaction of dimethyl amine or diethyl amine with epichlorohydrine, followed by the quaternization with allyl chloride and by polymerization.</p> |
