A Robust Superhydrophobic Perfluoropolysiloxane and Self-doped Polyaniline/Epoxy Resin Composite Coating with Excellent Performance

A robust superhydrophobic perfluoropolysiloxane and self-doped polyaniline/epoxy resin composite coating (EPAN-RA-POS) was prepared. The structure is composed of the internal self-doped polyaniline/epoxy resin layer and the outer superhydrophobic perfluoropolysiloxane layer. The contact angle (CA) and sliding angle (SA) of EPAN-RA-POS are 165.0° ± 1.5 and 1.2° ± 0.7, respectively, the protection efficiency and immersion durability of EPAN-RA-POS reach 99.99% and 408 h, the superhydrophobicity is only lost after 330 peeling experiments. A robust superhydrophobic perfluoropolysiloxane and self-doped polyaniline/epoxy resin composite coating (EPAN-RA-POS) was prepared. The structure is composed of the internal self-doped polyaniline/epoxy layer and the outer superhydrophobic perfluoropolysiloxane layer. The contact angle and sliding angle of EPAN-RA-POS are 165.0° ± 1.5 and 1.2° ± 0.7, respectively. In addition, EPAN-RA-POS has excellent corrosion resistance, mechanical properties and corrosion durability.