在改进常规制备方法的基础上,采用化学镀/溶胶-凝胶复合 法在碳钢表面制备TiO2修饰膜.利用人工神经网络优化制备工艺.研究较优条件下制备的T iO2修饰膜在0.5 mol/L硫酸溶液中的耐蚀性能.
TiO2 modified film is one of wonderful anticorros ion materials.TiO2 modified film on carbon steel was prepared by a new method electroless plating and solgel composite process.There were many preparation fa ctors influencing the corrosion resistance property of modified film,among them, the thickness of NiP transient layer (measured by plating time),number of dipc oating during the solgel process,heat treatment time and the molar ratio of c omplexing agent and Ti(OC4H9)4 were the most important ones.An artificial neural network was applied to design the preparation condition of TiO2 modifie d f ilm considering the interaction of the main factors.The condition of forming TiO 2 modified film on carbon steel was that NiP plating was 50minutes,No.of dip coating was 4,heat treatment time was 2 hours,and the molar ratio of complexing agent and Ti(OC4H9)4 kept 1.5∶1.Corrosion behavior of TiO2 film on carb on steel was investigated by polarization resistance measurement.The result show s that electroless plating and solgel TiO2 modified film on carbon steel has a good anticorrosion property in 0.5 mol/L H2SO4 solution.
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