LIU Junsong,LIU Dingfu,SU Qi,et al.Effect of Organic Additives on Zn-Ni-P Alloy Electroplating[J].Plating & Finishing,2019,(7):6-9.[doi:10.3969/j.issn.1001-3849.2019.07.002]
有机添加剂对电镀Zn-Ni-P合金的影响
- Title:
- Effect of Organic Additives on Zn-Ni-P Alloy Electroplating
- Keywords:
- Zn-Ni-P alloy; benzyl acetone; glossiness; corrosion resistance
- 文献标志码:
- A
- 摘要:
- 以苄叉丙酮为主光亮剂，平平加25为载体光亮剂，苯甲酸钠为辅助光亮剂配制了添加剂，在乙酸盐电镀Zn-Ni-P合金镀液中加入该添加剂，研究了添加剂对Zn-Ni-P合金镀层微观形貌、光泽度、硬度和耐蚀性的影响。添加剂配方为120 g/L平平加25，25 g/L苄叉丙酮，50 mL/L乙醇，40 g/L苯甲酸钠。结果表明：随着添加剂添加量的增大，Zn-Ni-P合金镀层微观形貌由致密平整型转变为条状交错型；镀层光泽度增加，可达到380 Gs；镀层显微硬度下降；电化学测试结果表明镀层的腐蚀电位负移、腐蚀电流增大，耐蚀性下降。
- Abstract:
- The additive was formulated by taking the benzyl acetone as the main brightener, Peregal25 as the carrier brightener and sodium benzoate as the auxiliary brightener. The additive was added to the Zn-Ni-P alloy plating solution of acetic acid salt. The effects of additives on microstructure, glossiness, hardness and corrosion resistance of Zn-Ni-P alloy coatings were studied. The additive formula was 120 g/L Peregal25, 25 g/L benzyl acetone, 50 mL/L ethanol, 40 g/L sodium benzoate. The results showed that as the additive amount increased, the micromorphology of Zn-Ni-P alloy coating changed from dense smooth type to strip cross type. The glossiness of the coating increased to a maximum of over 380 Gs. The microhardness of the coating decreased. The results of electrochemical test showed that the corrosion potential was negative shift, the corrosion current increased and the corrosion resistance decreased.
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备注/Memo
收稿日期： 2018-11-17；修回日期： 2018-12-19