Di-particles-derived slippery lubricant-infused porous surface with broad anti-adhesion performance

As an alternative approach to superhydrophobic surfaces, slippery lubricant-infused porous surface (SLIPS) is a promising solution to undesirable adhesion. Nonetheless, it is highly expected yet still challenging to exploit a method featured substrate-independence, time-saving property and long-term stability. In this study, different from the common preparation process of SLIPS, the di-particles-derived slippery lubricant-infused porous surface (DPD-SLIPS) was successfully fabricated derived from strategically inverted construction of highly stable and superhydrophobic di-particles framework for locking lubricant via successively-two-step spraying polyacrylate adhesive nanoparticles (NPs) and fluorinated SiO2 NPs, followed by perfluoropolyether (PFPE) infiltration. This substrate-independent procedure is time-saving and adaptable for a variety of materials with distinct morphologies and dimensions. The resultant surface hierarchy exhibited excellent mechanical robustness and lubricant-locking ability when subjected to adhesive tape peeling, abrasion, and shearing tests. Furthermore, the anti-adhesion performance of the created surface was investigated under diverse conditions, exhibiting remarkable ultra-slipping, drag reduction, anti-biofouling, self-cleaning, and anti-icing properties. In particular, the construction of such low surface energy base with micro/nano hierarchical structure via a facile spraying method is an advanced candidate for real applications in reducing ship drag, marine antifouling, preventing biological invasion, among others.