Fabrication Of Superhydrophobic Surfaces Based On Copolymer Of Styrene And Bisphenol A Diglycidyl Ether Monoacrylate

In this paper, we first provided a detailed introduction of research progress in superhydrophobic surface, from natural phenomena to theoretical research and fundamental methods on coating preparation, then, a brief overview of epoxy resin and the application of it to prepare robust superhydrophobic surfaces. Synthesis of special copolymer, preparation of polymeric superhydrophobic surfaces through phase separation method and nanocomposite surfaces by grafting copolymer on hollow silica nanospheres were reported here.In chapter2, copolymer of styrene and bisphenol A diglycidyl ether monoacrylate (PS-co-AADGEBA) were synthesized. PS-co-AADGEBA were obtained by three steps from raw materials. Preparation of superhydrophobic surfaces utilizing PS-co-AADGEBA based on phase separation method was described in chapter3, the PS-co-AADGEBA were dissolved in tetrahydrofuran at70oC, and ethanol was added subsequently. When the solvent evaporated, PS-co-AADGEBA self-assembled into spherical particles to lower surface energy, forming micro-rough structures. The maximum water contact angle and sliding angle of the film were measured as155.2±2°and4±2°, respectively. In chapter4, the PS-co-AADGEBA was also successfully grafted onto the hollow silica nanospheres functionalized by3-aminopropyl triethoxysilane (HSNs-NH2), so a (PS-co-AADGEBA)-g-(HSNs-NH2) nanocomposite superhydrophobic surface was prepared through casting drops of (PS-co-AADGEBA)-g-(HSNs-NH2)/toluene on the cleaned glass substrate, the maximum water contact angle of the surface was measured as158.6±2°and sliding angle of3±2°.Both of the surfaces showed superhydrophobicity to water and corrosive liquids and excellent aging resistance, furthermore, the polymeric surface shows high transmittance of visible light and improved mechanical strength against impact of water, indicating that the obtained surfaces are promising materials for numerous potential applications fields, including electronics, biomedical, martial and defense-related areas.