Intrinsic anti-icing lubricated coating with ultra-low ice adhesion based on polyborosiloxane-polyfluoroacrylate copolymers with boron-oxygen dynamic bonds

Achieving both high durability and low ice shear strength in intrinsic-lubricated anti-icing coatings (without lubricant) remains challenging. This work fabricates a lubricating polymer copolymerized from polyborosiloxane and polyfluoroacrylate via dynamic boron oxygen bonds, where the reversible cleavage/reformation of boron oxygen bonds endow the surface with dynamic mobility and polyfluoroacrylate reduces surface energy. The resulting PFBS coating delivers an ultra-low ice shear strength (1.0 ± 0.1 kPa), excellent durability under harsh conditions (Δτ ≤ 1.3 kPa), and the ability of complete repair at −20 ℃. This study clarifies the synergistic mechanism of B–O bonds and PDMS segments in boosting anti-icing performance and durability, offering a new design strategy for high-performance anti-icing coatings. Download: Download high-res image (125KB) Download: Download full-size image