A Fabrication Strategy for Durable Slippery Organic Coating toward Antifouling and Anticorrosion via Digital Light Processing

The slippery liquid-infused porous surfaces (SLIPS) have recently attracted significant interest in marine antifouling and corrosion protection. Nevertheless, the insufficient durability and corrosion resistance of SLIPS considerably affect their application potential. In this work, a preparation strategy for ultradurable slippery organic coating was proposed to combat biofouling and corrosion. Digital light processing (DLP) was first employed to fabricate organic protective coatings with gradient porous structures to improve the stability and durability of the SLIPS. The structure with a smaller pore size in the upper segment relative to the basal area was designed to concurrently enhance the lubricant's storage and retention capabilities. The antifouling experiment demonstrated excellent antifouling performance, with a bacterial colonization of merely 2.08% after immersion in a