Artículos de revistas
Superhydrophobic polyethylcyanoacrylate coatings. Contact area with water measured by Raman spectral images, contact angle and Cassie-Baxter model
Registro en:
Journal Of Colloid And Interface Science. Academic Press Inc Elsevier Science, v. 388, n. 306, n. 312, 2012.
0021-9797
WOS:000310495600040
10.1016/j.jcis.2012.08.055
Autor
Bonugli, LO
dos Santos, MVP
de Souza, EF
Teschke, O
Institución
Resumen
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) 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. 388 306 312 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) CNPq [301.282/2009-9]