Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 13, Pages 10763-10774Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am502691g
Keywords
superamphiphobic; superoleophobic; photopolymerization; thiol-ene; bioinspired; spray-deposited
Funding
- National Science Foundation [DMR-1041853, DMR-1056817]
- U.S. Department of Education GAANN Fellowship Program [P200A120118]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1056817] Funding Source: National Science Foundation
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1041853] Funding Source: National Science Foundation
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Superamphiphobic surfaces, exhibiting high contact angles and low contact angle hysteresis to both water and low surface tension liquids, have attracted a great deal attention in recent years because of the potential of these materials in practical applications such as liquid-resistant textiles, self-cleaning surfaces, and antifouling/anticorrosion coatings. In this work, we present a simple strategy for fabricating of superamphiphobic coatings based on photopolymerization of hybrid thiol-ene resins. Spray-deposition and UV photopolymerization of thiol-ene resins containing hydrophobic silica nanoparticles and perfluorinated thiols provide a multiscale topography and low-energy surface that endows the surface with superamphiphobicity. The wettability and chemical composition of the surfaces were characterized by contact-angle goniometry and X-ray photoelectron spectroscopy, respectively. The hierarchical roughness features of the thiol-ene surfaces were investigated with field-emission scanning electron microscopy. Droplet impact and sandpaper abrasion tests indicate the coatings respectively possess a robust antiwetting behavior and good mechanical durability.
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