In this study, different flexible
structures that are
morphologically
like the micro-nano pillars, setae, and cilia on many natural organism
surfaces are created with a novel fabricating strategy to explore
the phenomenon and mechanism of static and dynamic droplets forming
on them. Just by adjusting the mold pattern during fabrication, different
micro/nanomorphologies including micro–nano pillar, filament,
or flake arrays could be conveniently obtained on a pristine smooth
film surface. Due to the existence of uniformly distributed hierarchical
micro–nano structure arrays that are composed of top-down nanoscale
filamentous tips, micro block bases, and grooves on the film, air
trapped in arrays connects the atmosphere continuously and forms a
successive air-pocket layer, which greatly reduces the solid–liquid
interfacial fraction and endows the micro–nanotextured film
with the capability of superhydrophobicity, low-adhesion, self-cleaning,
anti-icing, and deicing characteristics. Through various mechanical
and chemical tests, the film has demonstrated its robustness, making
it highly suitable for a wide range of practical engineering applications.