One-step rapid synthesis of robust superhydrophobic surfaces through acrylate crosslinking/polymerization

Abstract

A new synthetic approach is proposed to fabricate highly durable and eco-friendly superhydrophobic surfaces using acrylate click chemistry. This approach does not require complex or time-consuming fabrication processes and can be used for the rapid fabrication of durable anti-fouling materials/coatings. The use of long-chain acrylates provides the surface with extreme water repellency, and the resulting surface exhibits long-term stability under various harsh conditions, including prolonged exposure to chemicals, mechanical stress, and physical abrasions. Unlike existing techniques that suffer from poor durability and stability, the proposed method is facile and uses a temperature-initiated acrylate crosslinking/polymerization chemistry that provides a hierarchical morphology with low surface energy to the surface during the reaction. This technique results in highly robust 3D superhydrophobic surfaces that can be easily molded or sprayed onto various flexible and rigid substrates. These surfaces have potential applications in the fabrication of emerging advanced and functional materials. Furthermore, the superhydrophobic gel materials can be extended in 3D print molding using silicone templates, and the spray coating exhibits self-cleaning performance even after harsh physical abrasion. Overall, this new approach is a promising step towards the development of durable and eco-friendly superhydrophobic materials and coatings that can be used in practical applications.