About: Does surface roughness amplify wetting?

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://scitation.aip.org/content/aip/journal/jcp/141/18/10.1063/1.4901128
Description	Any solid surface is intrinsically rough on the microscopic scale. In this paper, we study the effect of this roughness on the wetting properties of hydrophilic substrates. Macroscopic arguments, such as those leading to the well-known Wenzel's law, predict that surface roughness should amplify the wetting properties of such adsorbents. We use a fundamental measure density functional theory to demonstrate the opposite effect from roughness for microscopically corrugated surfaces, i.e., wetting is hindered. Based on three independent analyses we show that microscopic surface corrugation increases the wetting temperature or even makes the surface hydrophobic. Since for macroscopically corrugated surfaces the solid texture does indeed amplify wetting there must exist a crossover between two length-scale regimes that are distinguished by opposite response on surface roughening. This demonstrates how deceptive can be efforts to extend the thermodynamical laws beyond their macroscopic territory. Any solid surface is intrinsically rough on the microscopic scale. In this paper, we study the effect of this roughness on the wetting properties of hydrophilic substrates. Macroscopic arguments, such as those leading to the well-known Wenzel's law, predict that surface roughness should amplify the wetting properties of such adsorbents. We use a fundamental measure density functional theory to demonstrate the opposite effect from roughness for microscopically corrugated surfaces, i.e., wetting is hindered. Based on three independent analyses we show that microscopic surface corrugation increases the wetting temperature or even makes the surface hydrophobic. Since for macroscopically corrugated surfaces the solid texture does indeed amplify wetting there must exist a crossover between two length-scale regimes that are distinguished by opposite response on surface roughening. This demonstrates how deceptive can be efforts to extend the thermodynamical laws beyond their macroscopic territory. (en)
Title	Does surface roughness amplify wetting? Does surface roughness amplify wetting? (en)
skos:prefLabel	Does surface roughness amplify wetting? Does surface roughness amplify wetting? (en)
skos:notation	RIV/60461373:22340/14:43897766!RIV15-GA0-22340___
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA13-09914S)
http://linked.open...iv/cisloPeriodika	18
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Malijevský, Alexandr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	12104
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/14:43897766
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	density functional theory, roughness; surface; Wetting (en)
http://linked.open.../riv/klicoveSlovo	roughness surface density functional theory Wetting
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[F3635EB7F8E2]
http://linked.open...i/riv/nazevZdroje	Journal of Chemical Physics
http://linked.open...in/vavai/riv/obor	BJ
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...vavai/riv/projekt	A controlling of diffusion processes in pores with varying permeability
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	141
http://linked.open...iv/tvurceVysledku	Malijevský, Alexandr
http://linked.open...ain/vavai/riv/wos	000344847600034
issn	0021-9606
number of pages	10 (xsd:int)
http://bibframe.org/vocab/doi	10.1063/1.4901128
http://localhost/t...ganizacniJednotka	22340

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