十六烷基三甲基溴化铵对电镀铜-镍合金耐蚀性的影响  

Effect of cetyltrimethylammonium bromide on corrosion resistance of electroplated copper-nickel alloy coating

作　　者：路培培 傅柳裕 许周胜 胡光辉[1] 潘湛昌[1] 何念 LU Peipei;FU Liuyu;XU Zhousheng;HU Guanghui;PAN Zhanchang;HE Nian(School of Chemical Engineering and Light Industry,Guangdong University of Technology,Guangzhou 510006,China;Guangdong Lear Chemicals Co.,Ltd.,Guangzhou 511475,China)

机构地区：[1]广东工业大学轻工化工学院,广东广州510006 [2]广东利尔化学有限公司,广东广州511475

出　　处：《电镀与涂饰》2024年第8期1-10,共10页Electroplating & Finishing

摘　　要：[目的]研究Cu-Ni合金电镀液中添加不同质量浓度的十六烷基三甲基溴化铵(CTAB)对Cu-Ni合金镀层耐蚀性的影响。[方法]通过浸泡腐蚀试验、塔菲尔极化曲线测试和电化学阻抗谱(EIS)考察了Cu-Ni合金镀层的耐蚀性。通过扫描电镜(SEM)、能谱仪(EDS)和X射线衍射仪(XRD)分析了Cu-Ni合金镀层的表面形貌、成分和晶相结构。采用傅里叶变换红外光谱仪(FTIR)分析了CTAB在Cu-Ni合金镀层中的夹杂情况,并通过接触角测量研究了Cu-Ni合金镀层的疏水性。此外,根据阴极极化曲线测试结果,研究了CTAB质量浓度对Cu、Ni及Cu-Ni合金电沉积行为的影响。[结果]随着镀液中CTAB质量浓度增大,Cu-Ni合金镀层的耐蚀性先变好后变差。CTAB质量浓度为80mg/L时所得Cu-Ni合金镀层表面呈花椰菜状的空间立体形貌,镀层中Cu、Ni质量分数分别为50.25%和40.86%,对腐蚀液的接触角达到129.49°,耐蚀性最佳。[结论]镀液中添加适量CTAB能够显著提高Cu-Ni合金镀层的耐蚀性。[Introduction]The effect of the mass concentration of cetyltrimethylammonium bromide(CTAB)on the corrosion resistance of electroplated Cu-Ni alloy coating needs to be studied.[Method]The corrosion resistance of Cu-Ni alloy coating was examined by immersion corrosion test,Tafel curve measurement,and electrochemical impedance spectroscopy(EIS).The surface morphology,elemental composition,and phase structure of Cu-Ni alloy coating were characterized by scanning electron microscopy(SEM),energy-dispersive spectroscopy(EDS),and X-ray diffraction(XRD).The inclusion of CTAB in the coating was analyzed by Fourier-transform infrared spectroscopy(FTIR).The hydrophobicity of Cu-Ni alloy coating was evaluated by contact angle measurement.The effect of CTAB concentration on the electrodeposition behavior of Cu,Ni,and Cu-Ni alloy was also studied by cathodic polarization curve measurement.[Result]The corrosion resistance of Cu-Ni alloy coating was initially improved and then deteriorated with the increasing of CTAB concentration.The Cu-Ni alloy coating electroplated with 80 mg/L of CTAB featured a cauliflower-like spatial three-dimensional morphology,contained 50.25%of Cu and 40.86%of Ni,had a contact angle of 129.49°to corrosive solution,and showed the best corrosion resistance.[Conclusion]The addition of appropriate amount of CTAB to the plating bath can significantly improve the corrosion resistance of Cu-Ni alloy coating.

关 键 词：铜-镍合金 电镀 十六烷基三甲基溴化铵 耐蚀性 

分 类 号：TQ153.2[化学工程—电化学工业]