Rheological and Tribological Properties of Nanocellulose-Based Ecolubricants

Based on the response surface methodology, a rheological and tribological study carried out on eco-friendly lubricants is described. Such ecolubricants consisted of fibrillated or crystalline nanocellulose in vegetable oil (castor oil, high oleic sunflower oil or their mixtures). Cellulose nanoparti...

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Autores principales:	Samuel D. Fernández-Silva, Miguel A. Delgado, Claudia Roman, Moisés García-Morales
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	sustainability lubrication friction coefficient wear nanocellulose vegetable oil Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/3183d46a6deb48278d2fe1c7df0d7a2d
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spelling	oai:doaj.org-article:3183d46a6deb48278d2fe1c7df0d7a2d2021-11-25T18:31:26ZRheological and Tribological Properties of Nanocellulose-Based Ecolubricants10.3390/nano111129872079-4991https://doaj.org/article/3183d46a6deb48278d2fe1c7df0d7a2d2021-11-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2987https://doaj.org/toc/2079-4991Based on the response surface methodology, a rheological and tribological study carried out on eco-friendly lubricants is described. Such ecolubricants consisted of fibrillated or crystalline nanocellulose in vegetable oil (castor oil, high oleic sunflower oil or their mixtures). Cellulose nanoparticles showed noticeable friction-reducing and anti-wear properties within the boundary and mixed lubrication regimes, which were found to be dependent on nanocellulose concentration, base oil composition and applied normal force. In general, both types of nanocellulose performed equally well. An excellent tribological performance, with large wear scar diameter reductions, was achieved with 3.3 wt.% (or higher) nanocellulose dispersions in castor oil-rich mixtures. The observed behavior was explained on the basis of enhanced viscosity of castor oil-rich suspensions and the preferential action of the most polar components, nanocellulose and ricinoleic acid, in the vicinity of the contact surfaces.Samuel D. Fernández-SilvaMiguel A. DelgadoClaudia RomanMoisés García-MoralesMDPI AGarticlesustainabilitylubricationfriction coefficientwearnanocellulosevegetable oilChemistryQD1-999ENNanomaterials, Vol 11, Iss 2987, p 2987 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	sustainability lubrication friction coefficient wear nanocellulose vegetable oil Chemistry QD1-999
spellingShingle	sustainability lubrication friction coefficient wear nanocellulose vegetable oil Chemistry QD1-999 Samuel D. Fernández-Silva Miguel A. Delgado Claudia Roman Moisés García-Morales Rheological and Tribological Properties of Nanocellulose-Based Ecolubricants
description	Based on the response surface methodology, a rheological and tribological study carried out on eco-friendly lubricants is described. Such ecolubricants consisted of fibrillated or crystalline nanocellulose in vegetable oil (castor oil, high oleic sunflower oil or their mixtures). Cellulose nanoparticles showed noticeable friction-reducing and anti-wear properties within the boundary and mixed lubrication regimes, which were found to be dependent on nanocellulose concentration, base oil composition and applied normal force. In general, both types of nanocellulose performed equally well. An excellent tribological performance, with large wear scar diameter reductions, was achieved with 3.3 wt.% (or higher) nanocellulose dispersions in castor oil-rich mixtures. The observed behavior was explained on the basis of enhanced viscosity of castor oil-rich suspensions and the preferential action of the most polar components, nanocellulose and ricinoleic acid, in the vicinity of the contact surfaces.
format	article
author	Samuel D. Fernández-Silva Miguel A. Delgado Claudia Roman Moisés García-Morales
author_facet	Samuel D. Fernández-Silva Miguel A. Delgado Claudia Roman Moisés García-Morales
author_sort	Samuel D. Fernández-Silva
title	Rheological and Tribological Properties of Nanocellulose-Based Ecolubricants
title_short	Rheological and Tribological Properties of Nanocellulose-Based Ecolubricants
title_full	Rheological and Tribological Properties of Nanocellulose-Based Ecolubricants
title_fullStr	Rheological and Tribological Properties of Nanocellulose-Based Ecolubricants
title_full_unstemmed	Rheological and Tribological Properties of Nanocellulose-Based Ecolubricants
title_sort	rheological and tribological properties of nanocellulose-based ecolubricants
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3183d46a6deb48278d2fe1c7df0d7a2d
work_keys_str_mv	AT samueldfernandezsilva rheologicalandtribologicalpropertiesofnanocellulosebasedecolubricants AT migueladelgado rheologicalandtribologicalpropertiesofnanocellulosebasedecolubricants AT claudiaroman rheologicalandtribologicalpropertiesofnanocellulosebasedecolubricants AT moisesgarciamorales rheologicalandtribologicalpropertiesofnanocellulosebasedecolubricants
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Rheological and Tribological Properties of Nanocellulose-Based Ecolubricants

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