Superhydrophobic Surface Based On Assembly Of Nanoparticles For Application In Anti-icing Under Ultra-low Temperature

A new class of superhydrophobic surface based on assembly of nanoparticles were fabricated for improving mechanical durability and anti-icing performance under ultra-low temperature. Furthermore, the anti-icing performance and mechanism of the yielded superhydrophobic surface was investigated by a high speed video and thermal infrared imaging equipment. The frozen time of water droplets could be prolonged to 372.0s when exposed glass slides with superhydrophobic surface to an ultra-low temperature of -40.0℃. This outstanding anti-icing performance is attributed to the unique structure of the superhydrophobic surface based on assembly of nanoparticles, which possesses good free-energy barrier and low heat transfer rate. This study thus opens up an avenue for the design and fabrication of superhydrophobic surface with good durability and anti-icing performance under ultra-low temperature.