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Cui, Chenyi; Li, Zian; Qi, Baojin; Cao, Yafei; Wei, Jinjia
Applied surface science, 10/2022, Volume: 600Journal Article
Display omitted •The durable superhydrophobic composite surfaces can be obtained by a simple and cost-effective two-steps spraying method.•The multi-adhesive strategy can improve the adhesion between the composite coating and the substrate and the composite coating itself, thereby improving the mechanical stability of the surface.•The prepared superhydrophobic surface has excellent temperature resistance, corrosion resistance and chemical stability.•The prepared surface shows excellent performance in practical applications such as self-cleaning, anti-icing and anti-frosting. Poor mechanical stability, expensive cost, and complex preparation process still limit the practical application of artificial superhydrophobic surfaces. Improving the chemical durability and mechanical stability of superhydrophobic surfaces is an important research direction to promote its commercial application. Herein, we developed a cost-effective and simple method to produce a durable superhydrophobic surface based on a multi-adhesive strategy. Fluorocarbon resin and hydrophobic silica nanoparticles bring excellent hydrophobicity and low adhesion to the coating. And the introduction of bottom resin and phenolic amine adhesive can not only increase the adhesion between superhydrophobic coating and substrates but also increase the mechanical stability of the coating. Even after severe mechanical damage such as abrasion, rubbing, and scraping, the prepared surface can still maintain excellent superhydrophobicity. At the same time, stable resin and inorganic filler bring more than 99 % anticorrosion efficiency, excellent thermal stability, and chemical stability to the superhydrophobic surface. The outstanding performance of the superhydrophobic surfaces in the field of self-cleaning, anti-icing, and frost protection may attract attention for practical application in the industry. The convenience of surface preparation on various substrates by spraying and brushing methods, and the low cost of manufacturing can also greatly expand the application prospect of the developed superhydrophobic surface.
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