title: Superoleophobic Surfaces Obtained via Hierarchical Metallic Meshes.
abstract: Hierarchical metallic surfaces demonstrating pronounced water and oil repellence are reported. The surfaces were manufactured with stainless-steel microporous meshes, which were etched with perfluorononanoic acid. As a result, a hierarchical relief was created, characterized by roughness at micro- and sub-microscales. Pronounced superoleophobicity was registered with regard to canola, castor, sesame, flax, crude (petroleum), and engine oils. Relatively high sliding angles were recorded for 5 μL turpentine, olive, and silicone oil droplets. The stability of the Cassie-like air trapping wetting state, established with water/ethanol solutions, is reported. The omniphobicity of the surfaces is due to the interplay of their hierarchical relief and surface fluorination.
authors.forename: Roman
authors.initials: R
authors.lastname: Grynyov
authors.forename: Edward
authors.initials: E
authors.lastname: Bormashenko
authors.forename: Gene
authors.initials: G
authors.lastname: Whyman
authors.forename: Yelena
authors.initials: Y
authors.lastname: Bormashenko
authors.forename: Albina
authors.initials: A
authors.lastname: Musin
authors.forename: Roman
authors.initials: R
authors.lastname: Pogreb
authors.affiliation: Institute of Technical Chemistry, Ural Division, Russian Academy of Science , ulitsa Academika Koroleva 3, Perm 614013, Russia.
authors.forename: Anton
authors.initials: A
authors.lastname: Starostin
authors.affiliation: Institute of Technical Chemistry, Ural Division, Russian Academy of Science , ulitsa Academika Koroleva 3, Perm 614013, Russia.
authors.forename: Viktor
authors.initials: V
authors.lastname: Valtsifer
authors.affiliation: Institute of Technical Chemistry, Ural Division, Russian Academy of Science , ulitsa Academika Koroleva 3, Perm 614013, Russia.
authors.forename: Vladimir
authors.initials: V
authors.lastname: Strelnikov
authors.forename: Alex
authors.initials: A
authors.lastname: Schechter
authors.forename: Srikanth
authors.initials: S
authors.lastname: Kolagatla