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Superamphiphobic ov...
Superamphiphobic overhang structured coating on a biobased material
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- Tuominen, Mikko (author)
- RISE,Material och ytteknik
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- Teisala, Hannu (author)
- Tampere University of Technology, Finland
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- Haapanen, Janne (author)
- Tampere University of Technology, Finland
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- Makela, Jyrki M. (author)
- Tampere University of Technology, Finland
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- Honkanen, Mari (author)
- Tampere University of Technology, Finland
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- Vippola, Minnamari (author)
- Tampere University of Technology, Finland
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- Bardage, Stig (author)
- RISE,SP – Sveriges Tekniska Forskningsinstitut
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- Wålinder, Magnus, 1965- (author)
- KTH,Byggnadsmaterial,KTH Royal Institute of Technology, Sweden
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- Swerin, Agne (author)
- RISE,KTH,Yt- och korrosionsvetenskap,Material och ytteknik,KTH Royal Institute of Technology, Sweden
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(creator_code:org_t)
- Elsevier, 2016
- 2016
- English.
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In: Applied Surface Science. - : Elsevier. - 0169-4332 .- 1873-5584. ; 389, s. 135-143
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- A superamphiphobic coating on a biobased material shows extreme liquid repellency with static contact angles (CA) greater than 150 degrees and roll-off angles less than 10 degrees against water, ethylene glycol, diiodomethane and olive oil, and a CA for hexadecane greater than 130 degrees. The coating consisting of titanic nanoparticles deposited by liquid flame spray (LFS) and hydrophobized using plasma-polymerized perfluorohexane was applied to a birch hardwood. Scanning electron microscopy (SEM) imaging after sample preparation by UV laser ablation of coated areas revealed that capped structures were formed and this, together with the geometrically homogeneous wood structure, fulfilled the criteria for overhang structures to occur. The coating showed high hydrophobic durability by still being non-wetted after 500 000 water drop impacts, and this is discussed in relation to geometrical factors and wetting forces. The coating was semi-transparent with no significant coloration. A self-cleaning effect was demonstrated with both water and oil droplets. A self-cleanable, durable and highly transparent superamphiphobic coating based on a capped overhang structure has a great potential for commercial feasibility in a variety of applications, here exemplified for a biobased material.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Biobased material
- Wood
- Coating
- Plasma
- Deposition
- Titania
- Nanoparticle
- Perfluorohexane
- Wetting
- Superamphiphobic
- Superhydrophobic
- Superoleophobic
- Water repellency
- Oil repellency
- Self-cleaning
Publication and Content Type
- ref (subject category)
- art (subject category)
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