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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, L O
dos Santos, M V Puydinger
de Souza, E F
Teschke, O
Abstract: Apolar fibers wired into a mesh-like microstructure forming a coating with a contact angle larger than 160° and fabricated by polycyanoacrylate polymerization are described. Interconnected fibers with diameters measuring approximately 5 μm are formed by texturized linear or folded nanowires. The structure forming the deposited film occupies ~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 (~1.5%). The spatial distribution of the surface in contact with water was determined by Raman spectral imaging (~1.5%) using the polycyanoacrylate lines and by scanning electron microscopy (~2.0%).
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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