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Multifunctional Polymer/Nano-TiO2 Photochromic Hybrid Coatings as a Barrier for Protection against Corrosion
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Author(s): L. M. Flores Tandy (Centro de Investigación y Desarrollo Tecnológico en Electroquímica, S.C., Mexico), J. J. Pérez Bueno (Centro de Investigación y Desarrollo Tecnológico en Electroquímica, S.C., Mexico)and Y. Meas Vong (Centro de Investigación y Desarrollo Tecnológico en Electroquímica, S.C., Mexico)
Copyright: 2015
Pages: 26
Source title:
Handbook of Research on Diverse Applications of Nanotechnology in Biomedicine, Chemistry, and Engineering
Source Author(s)/Editor(s): Shivani Soni (Alabama State University, USA), Amandeep Salhotra (City of Hope National Medical Center, USA)and Mrutyunjay Suar (KIIT University, India)
DOI: 10.4018/978-1-4666-6363-3.ch030
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Abstract
This chapter shows results related to synthesizing hybrid materials composed of polymer matrix/nano-TiO2, which possesses a photochromic property under UV irradiation. The synthesized TiO2 was amorphous, but, for the hybrid photochromic response, the required illumination is that with the same or superior energy than semiconductor bandgap. Moreover, the photochromism requires OH proportionate to preparing within an alcohol, and by releasing them by temperature, the color change resulted permanent. The hybrid materials were prepared as coatings, which display multifunctional characteristics. The polymeric matrix was proven with different kinds of organic polymers and solvents. This phenomenon was investigated through Salt Spray Test, Electrochemical Impedance Spectroscopy, HRTEM, SEM, Reflectance, Fluorescence, Contact Angle, and EPR. The capacity to act as a barrier for corrosion protection was investigated. Finally, the hybrid material is proposed as an indicator for applications in engineering.
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