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- Title
Experimental study of the stability and thermophysical properties of PEG400 with CuO and G as a biodegradable nanolubricant.
- Authors
Moreno-Mendoza, Jaime Felipe; Santa-Marín, Juan Felipe; Buitrago-Sierra, Robison; Cacua, Karen
- Abstract
The addition of nanomaterials to conventional lubricants has been presented as an alternative to modify their thermophysical and tribological properties, seeking to increase their performance. This study presents the results of the experimental evaluation of stability, thermal conductivity, and dynamic viscosity of the nanolubricants, PEG400-CuO, PEG400-Graphene and PEG400-CuO / Graphene. The nanolubricants were prepared by the twostep method and two concentrations 0.1 and 0.5 wt.% of each type of nanomaterial were used. The experimental results showed that the dispersions with less agglomeration and sedimentation during the evaluation time were those prepared with 0.1 wt.% of graphene. The thermal conductivity of the PEG400-CuO dispersion did not show significant differences compared to the conductivity of PEG400. However, the conductivity for the PEG400-Graphene and PEG400-CuO / Graphene dispersions (0.5 wt./), increased up to 13.5% and 5.2%, respectively. The dynamic viscosity of the dispersions with a concentration of 0.1 wt.% did not show significant changes with respect to PEG400, while the viscosity of the PEG400-Graphene dispersion (0.5 wt.%) was higher than that of PEG400 for all evaluated temperatures.
- Publication
Revista Fuentes, El Reventón Energético, 2021, Vol 19, Issue 1, p75
- ISSN
1657-6527
- Publication type
Article
- DOI
10.18273/revfue.v19n1-2021007