Corrosion and failure of metal materials has always been a problem that researchers and engineers are eager to solve. Inspired by the lotus effect, biomimetic superhydrophobic materials with typical non-wetting properties at the interface have shown great potential in the field of corrosion protection. Although the anti-corrosion function of superhydrophobic materials has been confirmed by researchers at home and abroad, there are still many unresolved challenges in the process of transitioning from the laboratory to practical applications.
A research team led by Prof. ZHANG Binbin from the CAS Institute of Oceanology of the Chinese Academy of Sciences reported an organic-inorganic hybrid super-amphiphobic coating with integrated functionalities of liquid repellency, self-cleaning, anti-corrosion, and anti-icing. The coating exhibits both superhydrophobic and superoleophobic properties, and shows excellent repellency to low surface tension liquids such as water, glycerol, ethylene glycol, and peanut oil, with sliding angles all less than 7°. The coatings also demonstrated their functional integration capabilities in self-cleaning, delayed icing, lossless liquid transport, and substrate applicability.
In the coating, functionalized Al2O3 nanoparticles are uniformly dispersed.