The chromium-free passivation system has drawn great focus in view of its advantages of green environmental feature and high performances. In this study, a phytic acid system passivation solution was developed and used to electrodeposit phytic acid film on the surface of rolled copper foil. The micromorphology, surface tension, oxidation and corrosion resistance performance of the phytic acid film were characterized by scanning electron microscope (SEM), dyne pens, X-ray photoelectron spectroscope (XPS) and electrochemical workstation, respectively. The results indicate that the electrodepositing process parameters within a certain range can facilitate the integrated, dense and smooth phytic acid film. Further, the formula of the phytic acid system passivation solution has a significant influence on surface tension, oxidation and corrosion resistance of phytic acid film. With the phytic acid concentration of 8 ml/l, polyethylene glycol concentration of 1 g/l, the cathodic polarization ability is enhanced, which results in the grain refinement, surface oxidability reduction and inhibition efficiency improvement. The three corrosion inhibitors in the aqueous solution could take a unique orientation, form a certain structure, and change the interface state of the system. The comprehensive performance meets the requirements standard of GB/T 36146-2018. Moreover, the environmentally friendly phytic acid passivation system can save more water resources, which is great significance to the green and rapid development of the electronic information industry.

无铬钝化系统以其绿色环保、高性能等优点备受关注。本研究开发了一种植酸体系钝化液，用于在压延铜箔表面电沉积植酸膜。分别采用扫描电子显微镜（SEM）、达因笔、X射线光电子能谱仪（XPS）和电化学工作站对植酸薄膜的微观形貌、表面张力、氧化和耐腐蚀性能进行了表征。结果表明，在一定范围内的电沉积工艺参数有利于植酸膜的形成完整、致密、光滑。此外，植酸体系钝化液的配方对表面张力有显着影响，植酸膜的抗氧化性和耐腐蚀性。植酸浓度为8ml/l，聚乙二醇浓度为1g/l时，阴极极化能力增强，晶粒细化，表面氧化性降低，缓蚀效率提高。水溶液中的三种缓蚀剂可以采取独特的取向，形成一定的结构，改变体系的界面态。综合性能符合GB/T 36146-2018的要求标准。而且，环保型植酸钝化体系可以节约更多的水资源，对电子信息产业的绿色快速发展具有重要意义。阴极极化能力增强，从而导致晶粒细化、表面氧化性降低和抑制效率提高。水溶液中的三种缓蚀剂可以采取独特的取向，形成一定的结构，改变体系的界面态。综合性能符合GB/T 36146-2018的要求标准。而且，环保型植酸钝化体系可以节约更多的水资源，对电子信息产业的绿色快速发展具有重要意义。阴极极化能力增强，从而导致晶粒细化、表面氧化性降低和抑制效率提高。水溶液中的三种缓蚀剂可以采取独特的取向，形成一定的结构，改变体系的界面态。综合性能符合GB/T 36146-2018的要求标准。而且，环保型植酸钝化体系可以节约更多的水资源，对电子信息产业的绿色快速发展具有重要意义。形成一定的结构，改变系统的界面状态。综合性能符合GB/T 36146-2018的要求标准。而且，环保型植酸钝化体系可以节约更多的水资源，对电子信息产业的绿色快速发展具有重要意义。形成一定的结构，改变系统的界面状态。综合性能符合GB/T 36146-2018的要求标准。而且，环保型植酸钝化体系可以节约更多的水资源，对电子信息产业的绿色快速发展具有重要意义。