Vol. 19 Núm. 1 (2021): Revista Fuentes, el reventón energético
Artículos

Estudio experimental de la estabilidad y propiedades termofísicas de los nanolubricantes PEG 400-CuO, PEG 400-Grafeno y PEG 400-CuO/Grafeno

Jaime Felipe Moreno-Mendoza
Grupo de Investigación Materiales Avanzados y Energía- MATyER
Juan Felipe Santa-Marín
Grupo de Investigación Materiales Avanzados y Energía- MATyER
Robison Buitrago-Sierra
Grupo de Investigación Materiales Avanzados y Energía- MATyER
Karen Cacua
Grupo de Investigación Materiales Avanzados y Energía- MATyER

Publicado 2021-06-28

Palabras clave

  • polietilenglicol,
  • PEG400,
  • nanolubricantes biodegradables,
  • conductividad térmica,
  • viscosidad dinámica,
  • estabilidad,
  • nanofluidos
  • ...Más
    Menos

Cómo citar

Moreno-Mendoza, J. F., Santa-Marín J. F., Buitrago-Sierra, R., & Cacua, K. (2021). Estudio experimental de la estabilidad y propiedades termofísicas de los nanolubricantes PEG 400-CuO, PEG 400-Grafeno y PEG 400-CuO/Grafeno. Fuentes, El reventón energético, 19(1), 75–84. https://doi.org/10.18273/revfue.v19n1-2021007

Resumen

La adición de nanomateriales a los lubricantes convencionales se ha presentado como una alternativa para modificar sus propiedades termofísicas y tribológicas, buscando incrementar su rendimiento. Este estudio presenta los resultados de la evaluación experimental de estabilidad, conductividad térmica y viscosidad dinámica de los nanolubricantes PEG400-CuO, PEG400-Grafeno y PEG400-CuO/Grafeno. Los nanolubricantes se prepararon por el método de dos pasos y se utilizaron dos concentraciones 0.1 y 0.5 % p/p de cada tipo de nanomaterial. Los resultados experimentales mostraron que las dispersiones con menor aglomeración y sedimentación durante el tiempo de evaluación fueron las preparadas con 0.1 % p/p de grafeno. La conductividad térmica de la dispersión PEG400-CuO no presentó diferencias significativas con respecto a la conductividad del PEG400. Sin embargo, la conductividad para las dispersiones PEG400-Grafeno y PEG400-CuO/Grafeno (0.5 % p/p), incrementó hasta un 13.5 % y 5.2 %, respectivamente. La viscosidad dinámica de las dispersiones con una concentración de 0.1 % p/p no presentó cambios significativos con respecto al PEG400, mientras que la viscosidad de la dispersión G-PEG para la concentración de 0.5 % p/p fue superior que la del PEG400 para todas las temperaturas evaluadas.

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