Abstract
En este estudio, se prepararon nanocompuestos a base de resina epóxica Araldite 506 y una organoarcilla. Los nanocompuestos se prepararon a diferentes proporciones, se depositaron como recubrimientos sobre sustratos de acero al carbón y se curaron por radiación UV. Los recubrimientos se caracterizaron por microscopia electrónica de barrido (SEM), espectroscopia de infrarrojo con transformada de Fourier (FTIR), difracción de rayos X (XRD) y análisis termogravimétrico (TGA). El efecto protector contra la corrosión se evaluó por medio de pruebas de análisis visual utilizando una solución al 5 % de cloruro de sodio y aplicando la norma ASTM D1654-05. Los resultados mostraron que se obtuvieron recubrimientos uniformes, se produjo la exfoliación para la organoarcilla dentro de la matriz polimérica y el recubrimiento con 1 % de organoarcilla exhibió las mejores propiedades anticorrosivas de todos los recubrimientos sintetizados.In this study, was prepared nanocomposites based on Araldite 506 epoxy resin and organoclay. Nanocomposites were prepared at different ratios, they were deposited as coatings on carbon steel substrates and cured by UV radiation. The coatings were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and thermogravimetric analysis (TGA). The corrosion protective effect was evaluated by means of visual analysis tests using a 5 % solution of sodium chloride and applying the standard ASTM D1654-05. The results showed that uniform coatings were obtained, the exfoliation occurred to the organoclay within the polymer matrix, the coated with 1 % organoclay exhibited the best corrosion properties of all synthesized coatings.
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