Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/320580
Type: Artigo de Periódico
Title: Mapping Of Heterogeneous Wetting Inside Superhydrophobic Coatings
Author: Teschke
O; Gomes
WE; Soares
DM; de Souza
EF
Abstract: The condition for the occurrence of induced drying inside structured coating was calculated and corresponds to a new format of the Kelvin equation. Water spatial distribution inside immersed interconnected fibers forming superhydrophobic coatings was then imaged by confocal Raman microscopy characterizing the heterogeneous wetting profile. Coatings were structurally characterized by scanning electron microscopy (resolution similar to 0.1 mu m) and interconnected fiber structure lateral area and empty volume (V-emp) measured. The combination of these micrograph images yield a new measurement technique readily applied for structurally characterizing immersed coating hydrophobicity. When this technique was applied for coatings showing induced drying, the measured coating layer lateral area per unit volume was similar to 10(4)/m, which differs by two orders of magnitude with the value calculated by the Kelvin equation. (C) 2016 Elsevier B.V. All rights reserved.
Subject: Heterogeneous Wetting Profiles
Capillary Evaporation
Peca Superhydrophobic Coatings
Kelvin Equation
Editor: ELSEVIER SCIENCE BV
Citation: Colloid And Interface Science Communications. ELSEVIER SCIENCE BV, n. 10-11, p. 6 - 10.
Rights: fechado
Identifier DOI: 10.1016/j.colcom.2016.03.003
Address: http://www-sciencedirect-com.ez88.periodicos.capes.gov.br/science/article/pii/S2215038215300406
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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