Abstract
Anti-adhesion surfaces capable of repelling various liquids would have
broad technological implications. However, the on-site application of
such surfaces has been limited by the need for complex processes and
extra equipment. Here we have created a solvent-free mixture containing
miscible silicon precursors, which can be readily sprayed, dipped, or
painted onto virtually any substrate to prepare flat anti-adhesion
coatings. By embedding the lubricating silicon segments on surfaces via
the novel synergetic reactions that spontaneously occur at room
temperature, we can fabricate coatings that are readily applicable
on-site to cover large objects, and which offer excellent repellency
against various liquids (water, hydrocarbons, crude oil, and oily-ink)
as well as viscoelastic and sticky adhesives. These coatings are
transparent, flexible, and durable. We believe these coatings can be
utilized in many commercial and residential situations to address a wide
range of undesirable interfacial adhesion issues such as smudge, drag,
and blockage.