Durable, superhydrophobic, superoleophobic and corrosion resistant coating on the stainless steel surface using a scalable method

•Superamphiphobic surfaces were fabricated on stainless steel by spray coating.•Hierarchical structure was achieved by controlling of particles size in each layer.•The liquid repellency increased as the number of silica layers increased.•The fabricated coating had long-period durability and high cor...

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Bibliographic Details
Published in:	Applied surface science Vol. 283; pp. 636 - 647
Main Authors:	Valipour Motlagh, N., Birjandi, F.Ch, Sargolzaei, J., Shahtahmassebi, N.
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier B.V 15-10-2013 Elsevier
Subjects:	Coating Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Corrosion prevention Corrosion resistance Cross-disciplinary physics: materials science; rheology Droplets Durability Electrochemical corrosion Ethylene glycol Exact sciences and technology Fuels Hierarchical structure Multilayers Physics Stainless steel Stainless steels Superamphiphobicity Surface energy Corrosion resistance Durability Stainless steel Superamphiphobicity Hierarchical structure Corrosion Stainless steels
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Summary:	•Superamphiphobic surfaces were fabricated on stainless steel by spray coating.•Hierarchical structure was achieved by controlling of particles size in each layer.•The liquid repellency increased as the number of silica layers increased.•The fabricated coating had long-period durability and high corrosion resistance.•The fabricated coating was highly resistant against scratch. In this study, superamphiphobic coating was produced using low surface energy materials and fabrication of hierarchical structures on stainless steel surface. Hierarchical structure was fabricated by silica multilayer coatings and adequate control of particles size in each layer. The surface energy was decreased by fluoropolymer compounds. The maximum static contact angle of DI water, ethylene glycol and fuel oil droplets on the prepared surface increased from 64° to 166°, from 33° to 157° and from 0° to 116°, respectively. Also, the minimum sliding angles of DI water, ethylene glycol and fuel oil droplets on the prepared surface were less than 2°, 5° and 12°, respectively. These results confirmed the superhydrophobicity and superoleophobicity of coated surfaces. These films maintained their superamphiphobicity after 16 days of immersion in water. In electrochemical corrosion evaluation, the highest protection efficiency of fabricated films reached as high as 97.33%. These satisfied results confirmed that this simple method can be used to fabricate large scale samples.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0169-4332 1873-5584
DOI:	10.1016/j.apsusc.2013.06.160