Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Recolector de Cienci...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
versions View all 2 versions
addClaim

Desarrollo de nanocomposites de lignina/acetato de celulosa con una potencial aplicación como agente espesante en la elaboración de grasas lubricantes

Authors: Rubio Valle, José Fernando; Martín Alfonso, Manuel Antonio; Valencia Barragán, Concepción; Martín Alfonso, José Enrique; Franco Gómez, José María;

Desarrollo de nanocomposites de lignina/acetato de celulosa con una potencial aplicación como agente espesante en la elaboración de grasas lubricantes

Abstract

El presente trabajo se centra en el desarrollo de nanocomposites de lignina kraft de eucalipto (EKL)/acetato de celulosa (CA) empleando la técnica de electrohilado, dichas nanoestructuras tienen una potencial aplicación como agente espesante para la elaboración de grasas lubricantes. Las propiedades fisicoquímicas las distintas disoluciones elaboradas de EKL/CA se caracterizaron mediante ensayos reológicos, de tensión superficial y de conductividad eléctrica, por otro lado, las propiedades morfológicas de las nanoestructuras electrohiladas se obtuvieron mediante microscopía electrónica de barrido. Los resultados denotan que las propiedades morfológicas de las nanoestructuras electrohiladas depende principalmente de las propiedades fisicoquímicas de la disolución. Por otro lado, se llevó a cabo la caracterización morfológica, reológica y tribológica de los oleogeles obtenidos a partir de la dispersión de las membranas electrohiladas en aceite de ricino. Como resultado de dicha caracterización se obtuvo que las propiedades reológicas de los oleogeles pueden adaptarse modificando la relación EKL/CA y el contenido de nanocomposite empleado en la dispersión. Como conclusión general, el electrospinning de disoluciones de EKL/CA puede proponerse como un método sencillo y eficaz para producir olegeles lubricantes, con propiedades similares a las grasas convencionales.

The present work is focused on the development of eucalyptus kraft lignin (EKL)/cellulose acetate (CA) nanocomposites using the electrospinning technique, these nanostructures have a potential application as a thickening agent for the production of lubricating greases. The physicochemical properties of the different elaborated EKL/CA solutions were characterized by rheological, surface tension and electrical conductivity tests, on the other hand, the morphological properties of the electrospun nanostructures were obtained by scanning electron microscopy. The results show that the morphological properties of the electrospun nanostructures depend mainly on the physicochemical properties of the solution. On the other hand, the morphological, rheological and tribological characterization of the oleogels obtained from the dispersion of the electrospun membranes in castor oil was carried out. As a result of this characterization it was obtained that the rheological properties of the oleogels can be adapted by modifying the EKL/CA ratio and the nanocomposite content used in the dispersion. As a general conclusion, the electrospinning of EKL/CA solutions can be proposed as a simple and efficient method to produce lubricating oleogels, with properties similar to conventional greases.

Country
Spain
Related Organizations
Keywords

Propiedades reológicas, Oleogels, Lignina Kraft, Electrospinning, Oleogeles lubricantes, Cellulose acetate, Rheological properties, Acetato de celulosa, Kraft lignin

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green