In this work, we reported a facile method to fabricate highly stable superhydrophobic coatings via blending two kinds of nanoparticles and crosslinked fluorosilanes. Simultaneous use of nano-TiO₂ and hydrophobic nano-SiO₂ cannot only synergistically construct multi-scale roughness structures on the superhydrophobic surfaces, but also greatly improve the hydrophobic stability of the superhydrophobic coatings. It was found that the water contact angle and contact angle hysteresis of the as-prepared coatings were, respectively, 166.6° and 3.4°. Owing to the excellent properties of crosslinked fluorosilanes, the composite coatings also exhibited good thermal stability, chemical stability and self-cleaning property. Owing to its flexibility and simplicity, the method is a facile and inexpensive way to achieve the lotus effect and exhibits high values in practical application.

Styrene–butadiene-styrene triblock copolymers were blended with carbon nanotubes (CNTs)/SiO₂ nano-additives to fabricate superhydrophobic coatings for self-cleaning. When the loading of nano-additives is 20 wt-% and the mass ratio of CNTs to SiO₂ is 4:1, the nanocomposite coatings show the best self-cleaning property with water contact angle of 152.5° and contact angle hysteresis of 3.2°. In addition, the superhydrophobic coatings exhibited good thermal stability and high mechanical stability. The superhydrophobic coatings might be extended to the design of novel superfloating and drag-reducing aquatic devices. Owing to its flexibility and simplicity, the method is not only a facile and inexpensive way to achieve the lotus effect but could also create coatings with high values in practical application.