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Type: Artigo de periódico
Title: Superhydrophobic polyethylcyanoacrylate coatings. Contact area with water measured by Raman spectral images, contact angle and Cassie-Baxter model
Author: Bonugli, LO
dos Santos, MVP
de Souza, EF
Teschke, O
Abstract: Apolar fibers wired into a mesh-like microstructure forming a coating with a contact angle larger than 160 degrees and fabricated by polycyanoacrylate polymerization are described. Interconnected fibers with diameters measuring approximately 5 mu m are formed by texturized linear or folded nanowires. The structure forming the deposited film occupies similar to 1.5% of the coating's top geometric area. This value agrees with the water/coating contact area given by the Cassie-Baxter contact-angle model (similar to 1.5%). The spatial distribution of the surface in contact with water was determined by Raman spectral imaging (similar to 1.5%) using the polycyanoacrylate lines and by scanning electron microscopy (similar to 2.0%). (C) 2012 Elsevier Inc. All rights reserved.
Subject: Fold microfibers
Nanotexturized polycyanoacrylate
Confocal Raman microscopy
Cassie-Baxter contact angle model
Raman spectral imaging and superhydrophobic coating
Country: EUA
Editor: Academic Press Inc Elsevier Science
Rights: fechado
Identifier DOI: 10.1016/j.jcis.2012.08.055
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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