Fabrication of superoleophobic surfaces on Zn substrates by electrochemical etching and perfluorooctanoic acid modification. (1st February 2016)

• Record Type: Journal Article
• Authors: Liu, Xin; Song, Jinlong; Liu, Jiyu; Zhang, Fangdong; Sun, Jing; Xu, Wenji
• Is Part Of: Micro & nano letters. Volume 11:Number 2(2016)
• Page Start: 109
• Page End: 113
• Publication Date: 2016-02-01
• Subjects: zinc -- etching -- organic compounds -- electrochemistry -- wetting -- surface morphology -- chemical analysis -- contact angle -- scanning electron microscopy -- X‐ray diffraction -- current density -- electrolytes; superoleophobic surfaces -- electrochemical etching -- perfluorooctanoic acid modification -- zinc substrates -- wettability -- surface morphology -- chemical composition -- optical contact angle measurements -- scanning electron microscopy -- X‐ray diffraction -- etching time -- current density -- electrolyte composition -- voids -- suspended structures -- glycerin -- peanut oil -- hexadecane -- sliding angles -- Zn; Nanotechnology -- Periodicals; Nanostructures -- Periodicals; Microtechnology -- Periodicals; 620.5
• DOI: 10.1049/mnl.2015.0372
• Languages: English
• ISSNs: 1750-0443

Abstract

Abstract : Superoleophobic surfaces on zinc substrates are fabricated via electrochemical etching and perfluorooctanoic acid modification. The wettability, surface morphology and chemical composition of the sample surfaces are investigated using optical contact angle measurements, scanning electron microscopy and X‐ray diffraction, respectively. The influences of the main processing parameters, for example, etching time, current density and electrolyte composition, on the wettability are also studied. The results show that the processed surfaces are composed of micro/nanoscale voids and suspended structures, presenting superoleophobicity with the contact angles of water, glycerin, peanut oil and hexadecane exceeding 150° and the sliding angles of them being <20°.