Ultrafast Processing of Hierarchical Nanotexture for a Transparent Superamphiphobic Coating with Extremely Low Roll-Off Angle and High Impalement Pressure

© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 30(2018), 14 vom: 15. Apr., Seite e1706529
1. Verfasser: Teisala, Hannu (VerfasserIn)
Weitere Verfasser: Geyer, Florian, Haapanen, Janne, Juuti, Paxton, Mäkelä, Jyrki M, Vollmer, Doris, Butt, Hans-Jürgen
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article omniphobic spray coating superhydrophobic superoleophobic wetting
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520 |a Low roll-off angle, high impalement pressure, and mechanical robustness are key requirements for super-liquid-repellent surfaces to realize their potential in applications ranging from gas exchange membranes to protective and self-cleaning materials. Achieving these properties is still a challenge with superamphiphobic surfaces, which can repel both water and low-surface-tension liquids. In addition, fabrication procedures of superamphiphobic surfaces are typically slow and expensive. Here, by making use of liquid flame spray, a silicon dioxide-titanium dioxide nanostructured coating is fabricated at a high velocity up to 0.8 m s-1 . After fluorosilanization, the coating is superamphiphobic with excellent transparency and an extremely low roll-off angle; 10 µL drops of n-hexadecane roll off the surface at inclination angles even below 1°. Falling drops bounce off when impacting from a height of 50 cm, demonstrating the high impalement pressure of the coating. The extraordinary properties are due to a pronounced hierarchical nanotexture of the coating 
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650 4 |a omniphobic 
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650 4 |a superoleophobic 
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700 1 |a Geyer, Florian  |e verfasserin  |4 aut 
700 1 |a Haapanen, Janne  |e verfasserin  |4 aut 
700 1 |a Juuti, Paxton  |e verfasserin  |4 aut 
700 1 |a Mäkelä, Jyrki M  |e verfasserin  |4 aut 
700 1 |a Vollmer, Doris  |e verfasserin  |4 aut 
700 1 |a Butt, Hans-Jürgen  |e verfasserin  |4 aut 
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