Improved distribution of etched tunnels on aluminum foil with silane treatment
Abstract The effect of silane treatment on the distribution and density of etched tunnels on aluminum foil was investigated in detail in this study. The results demonstrated that with a suitable silane treatment concentration, a decrease in merged tunnels and improved uniform distribution of etched tunnels on the aluminum foil could be achieved, leading to an increased specific surface area of the etched aluminum foil. However, if the silane treatment concentration was increased further, the generation of etched tunnels on the aluminum surface was significantly reduced as a result of the excessive anti corrosion effect provided by the thick silane film. The beneficial results were attributed to an improvement in pitting initiation sites on the aluminum foil with suitable silane treatment, which was supported by the morphologies and electrochemical characteristics of the foils.
Progress in Organic Coatings