In this work, a porous silica film pretreatment layer with a thickness up to 8 μm was prepared on the surface of mild steels with the aid of alkaline catalysis. This was achieved by pre-depositing an alkaline film on the substrate before deposition of silica layer. Polymeric resin was then painted on silica film pretreatment layer for long-term protection. Active protection performance was further achieved by loading corrosion inhibitors in the pretreatment layer. Electrochemical impedance spectroscopy and scanning vibrating electrode technique both demonstrate the excellent corrosion performance of the painting system constructed on such a pretreatment layer.

中文翻译：

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在借助于碱催化制备的多孔二氧化硅预处理层上构建的防腐涂料系统

在这项工作中，借助于碱性催化，在低碳钢的表面上制备了厚度最大为8μm的二氧化硅多孔膜预处理层。这是通过在沉积二氧化硅层之前在基板上预沉积碱性膜来实现的。然后将聚合物树脂涂在二氧化硅膜预处理层上以进行长期保护。通过在预处理层中加入缓蚀剂，可以进一步实现主动保护性能。电化学阻抗谱和扫描振动电极技术都证明了在这样的预处理层上构建的喷漆系统的出色的腐蚀性能。