Enhancement of throwing power and covering power by applying composite additives in nickel sulfamate bath
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摘要: 通过在氨基磺酸镍镀液中加入组合添加剂来优化镀液的性能。试验结果表明:使用二苯磺酰亚胺(BBI)0.45~0.60 g/L、烯丙基磺酸钠(SAS)1.30~1.50 g/L、丙炔磺酸钠(PS)0.08~0.10 g/L、羟烷基磺酸钠盐(SSO3)0.02~0.03 g/L、1-(3-磺丙基)吡啶内盐(PPS-OH)0.08~0.10 g/L为组合添加剂,可显著提高氨基磺酸镍镀液的分散能力和深镀能力,其分散能力由原来的21.43%增加到58.29%,深镀能力由原来的40.0%提高至53.5%。BBI、SAS、PS、SSO3和PPS-OH对镀液分散能力和深镀能力的提高均有不同程度的贡献,且是组合添加剂协同作用的结果。Abstract: The performance of the nickel sulfamate bath is enhanced as a result of the composite additives. The results show that the dispersion capacity is increased from 21.43% to 58.29% and the covering power is increased from 40.0% to 53.5% with the additives of dibenzenesulfonimide (BBI) 0.45~0.60 g/L, sodium allylsulfonate (SAS) 1.30~1.50 g/L, propynesulfonic acid sodium salt (PS) 0.08~0.10 g/L, hydroxy propyl-2-mercapto-disultfonic acid sodium (SSO3) 0.02~0.03 g/L, 1-(3-sulfopropyl)pyridine inner salt (PPS-OH) 0.08~0.10 g/L. All these additives, namely BBI, SAS, PS, SSO3 and PPS-OH in a nickel sulfamate bath have contribution to different degrees to both the throwing power and the covering power, which is the synergistic effect of the combined additives.
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Key words:
- nickel sulfamate /
- throwing power /
- covering power /
- additives
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