Superhydrophobic Composite Coating with Excellent Mechanical Durability

Superhydrophobic surfaces have great potential for self‐cleaning, anti‐icing, and dragreducing because of their water repellency property. However, their super‐hydrophobicity is destroyed under mechanical abrasion due to the vulnerability of the delicate surface textures. Here, we demonstrate a strategy to create a robust superhydrophobic surface using MXene and fluoridated silica as functional fillers in epoxy resin. The fluoridated silica produces low surface energy, MXene serves as a wear‐resistant phase and epoxy resin is the binding matrix. The composite coating demonstrates a self‐cleaning effect to remove particles from the superhydrophobic surface by rolling water droplets. Moreover, the coating exhibits excellent mechanical durability by standing abrasion to maintain super‐hydrophobicity. The superhydrophobic composite coating has the advantages of low cost and feasibility and has the potential for expandable industrial promotion.