Abstract
Polymer micro/nano hierarchical structures were successfully formed by photo-nanoimprinting using anodic porous alumina molds. Anodic porous alumina molds with hierarchical structures were prepared by the anodization of an Al substrate with a micro-concave array. The obtained surfaces with hierarchical structures exhibited superhydrophobicity. The hydrophobic properties of the obtained samples were dependent on the surface structures and could be optimized by changing the micro- and nanopatterns in the hierarchical structure.
Highlights
There has been increasing interest in the preparation of various functional surfaces based on bio-inspired approaches
We describe the preparation of the micro/nano hierarchical structures for superhydrophobic surfaces by a nanoimprinting process using an anodic porous alumina mold
Polymer micro/nano hierarchical structures were prepared by nanoimprinting using anodic porous alumina molds
Summary
There has been increasing interest in the preparation of various functional surfaces based on bio-inspired approaches. Micro-concave array structures were formed on the surface of the Al substrate by removal of the oxide layer using a mixed solution of chromic acid and phosphoric acid.
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