Abstract
The superhydrophobic surface was successful fabricated through spin-coating epoxy resin firstly and transferring the dendrite-like structures to aluminum substrate coated with epoxy resin. The combination of organic coating and superhydrophobic surface with dendritic micro-nano structures prevent the permeation of corrosive ions more effectively. The results indicated the fabricated superhydrophobic surfaces possessed a WCA and WSA of nearly 154° and 0°, exhibiting good superhydrophobicity. Besides, the superhydrophobic surface displayed an excellent repellency to acidic or alkaline droplets. The self-cleaning performance of the superhydrophobic surface against fine sand and chalk dust was also proved. Moreover, the anti-corrosion property of superhydrophobic surface has greatly improved due to the dual function of epoxy resin and the air pockets trapped in superhydrophobic surface. This eco-friendly and facile approach provides a novel strategy to prevent metal from corrosion, which will promote the application of superhydrophobic surface in metal protection field.
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