Publicado 2020-01-03
Palabras clave
- geopolímeros,
- nanomateriales,
- resistencia mecánica
Cómo citar
Derechos de autor 2020 Revista UIS Ingenierías
Esta obra está bajo una licencia internacional Creative Commons Atribución-SinDerivadas 4.0.
Resumen
Un geopolímero a base de metacaolin fue fabricado con 5 proporciones de dos nanomateriales diferentes. Por un lado, nanowhiskers de carburo de silicio y, por otro lado, nanopartículas de dióxido de titanio. Ambos fueron colocados en agua y recibieron energía ultrasónica para ser dispersados. Fueron analizadas los efectos sobre las propiedades mecánicas y la cinética de reacción. Comparados con la matriz de referencia, los resultados evidenciaron una tendencia al incremento de la resistencia a la flexión. Probablemente por la geometría de los nanowhiskers de SiC y el refinamiento de poros por las partículas de nano-TiO2. Las curvas de calorimetría mostraron que al incorporar nanopartículas de TiO2 se obtuvo una reducción del 92 % en el calor total, mientras que, los nanowhiskers de SiC produjeron una reducción del 25 % en el calor total.
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Referencias
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