Multifunctional fluorine‐free superhydrophobic coating with flame‐retardant, anti‐icing, anti‐corrosion, and oil–water separation properties

A fluorine-free and multifunctional superhydrophobic coating (r-MSC) was prepared by the one-step spraying method. The had low-adhesion properties with water contact angle of 161.5° ± 1° sliding 3.2° 0.5°. It could be while maintaining surface characteristics on any substrates. owed outstanding mechanical durability chemical stability. Moreover, also possessed ability self-cleaning, anti-fouling, anti-icing, flame retardant ability. Importantly, presence endowed substrate both water-resistant fireproof properties. Besides, it showed excellent oil-water separation ability, which presented efficiency over 90% for different types oils after 10 cycles. Furthermore, improve corrosion inhibition performance current density reduced two orders magnitude from polarization curve. r-MSC advantages simple preparation, fluorine-free, environmentally friendly appropriate large-area fabrication, applied to various fields.