However, these methods usually are applied to small-scale substrates at severe conditions, and the surfaces did not exhibit long-term stability in the acid/alkali environment, thus greatly limiting their applications in practical engineering fields. On the other hand, a very simple one-step method involving

solvent evaporation to fabricate a polymer superhydrophobic surface with disordered microstructure has been reported [15–17]; however, it is easily scraped off due to the weak cohesion between the coating and substrate and the low resistance to high and low temperature alternation, in addition no long-term stability BAY 57-1293 price over a wide pH range (such as acid rain) was achieved. In our previous work, we firstly demonstrated that bionic superhydrophobic poly-(tetrafluoroethylene)/poly(phenylene sulfide) (PTFE/PPS) coating surfaces with long-term stability, high cohesive strength, and anti-temperature change can be prepared by a simple, inexpensive, and conventional coating-curing process [18–20]. However, the nanometer-scale structure on these superhydrophobic PTFE/PPS coating was basically cross-linking and disorderly,

leading to great obstacles Selleckchem Pictilisib for further exploration on its anti-icing mechanism. Recently, Wang and coworkers have reported that robust self-cleaning coatings with well-ordered arrays were specially prepared by grafting cross-linked polymers on the silicon wafer Non-specific serine/threonine protein kinase surfaces to investigate their anti-icing mechanisms [21,

22]. According to the above researches, up to now, the mechanism for self-cleaning surfaces with well-ordered polymer nano-fibers on various large-scale substrates has not been completely understood, and systematic study on it will significantly help explore new methods for polymer superhydrophobic surfaces in practical severe engineering fields. Through the past 5 years’ research, it is firstly found that bionic self-cleaning surfaces with well-ordered polymer nano-wires/fibers can be fabricated by disturbing polymer crystallization during one-step coating-curing process. Both the external macroscopic force and internal microscopic force interferences on polymer aggregates can significantly affect the nucleation and crystal growth of polymer chains under various cooling conditions. Orderly polymer nano-fibers (5 to 10 μm in length/100 nm in width) with a certain direction are obtained due to an external macroscopic force ‘F blow,’ which is on the same direction as the H2 gas flow. This orderly MNBS structure results in the coating with superior superhydrophobicity (WCA of 170° and WSA 0° to 1°), very similar with ‘lotus effect.’ More particularly, well-ordered nano-wires and nano-bridges (1 to 8 μm in length/10 to 80 nm in width) are generated at the non-continuous zone due to an internal microscopic tensile force (F T) by severe uneven shrinkage of adjacent continuous phases in the non-uniform medium (quenched in dry ice).