2results about How to "Antifouling" patented technology

This invention belongs to the field of marine protective coating technology, specifically relating to a super-corrosion-resistant powder coating for marine facilities and its preparation method. Addressing the current problem of mutual constraints among antifouling, anti-corrosion, and hydrophobic properties in coatings, this invention constructs a double-layer coating by employing a sequential electrostatic spraying process for the bottom and top layers of powder, followed by a single co-curing process to form a composite coating. The bottom layer comprises carboxylated liquid polybutadiene-modified epoxy resin and phosphate-modified flake zinc-aluminum powder, imparting excellent adhesion, flexibility, and physical shielding properties to the coating. The top layer comprises silane-modified nano-silica and modified antifouling agents, providing superhydrophobic, self-cleaning, and active antifouling functions, thereby enabling applications in harsh marine environments.