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Functionalization Effect on Polymer Nanocomposite Coatings Based on TiO2–SiO2 Nanoparticles with Superhydrophilic Properties

Centro de Investigación en Materiales Avanzados S.C., Unidad Monterrey, Alianza Norte No. 202, Parque PIIT, 66628 Apodaca, Nuevo León, Mexico
Authors to whom correspondence should be addressed.
Nanomaterials 2018, 8(6), 369;
Received: 26 April 2018 / Revised: 22 May 2018 / Accepted: 23 May 2018 / Published: 25 May 2018
(This article belongs to the Special Issue Preparation and Application of Hybrid Nanomaterials)
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In this study, a novel binary nanocomposite system based on TiO2-SiO2 was functionalized with trimethylolpropane triacrylate (TMPTA) and characterized by XPS and XRD. Results revealed that TiO2-SiO2 nanoparticles were covalently functionalized. Functionalized nanoparticles at low concentrations (0.1 wt % and 0.5 wt %) were dispersed in acrylic acid acting as a polymer matrix. Nanocomposite coatings analysis demonstrate to achieve superhydrophilic properties as well as very good optical characteristics. Water contact angle characterization showed the functionalization effect by achieving a superhydrophilic behavior with a contact angle less than 5°. UV-Vis measurements demonstrated high optical transmittance above 95% for the coatings. Based on the obtained results a mechanism describing the chemical interactions of the constituents responsible for the synergy in the nanocomposite as well as the morphological play role in the behavior are presented. View Full-Text
Keywords: TiO2–SiO2 functionalization; superhydrophilic coating; nanocomposite coating TiO2–SiO2 functionalization; superhydrophilic coating; nanocomposite coating

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Vázquez-Velázquez, A.R.; Velasco-Soto, M.A.; Pérez-García, S.A.; Licea-Jiménez, L. Functionalization Effect on Polymer Nanocomposite Coatings Based on TiO2–SiO2 Nanoparticles with Superhydrophilic Properties. Nanomaterials 2018, 8, 369.

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