Joule effect self-heating of epoxy composites reinforced with graphitic nanofillers

Gonzalez Prolongo, Margarita; Del Rosario, G.; Prolongo, S. G.; Moriche, R.; Jimenez-suarez, A. y Urena, A. (2016). Joule effect self-heating of epoxy composites reinforced with graphitic nanofillers. "Journal of Polymer Science", v. 23 ; p. 189. ISSN 1022-9760. https://doi.org/10.1007/s10965-016-1092-4.

Descripción

Título: Joule effect self-heating of epoxy composites reinforced with graphitic nanofillers
Autor/es:
  • Gonzalez Prolongo, Margarita
  • Del Rosario, G.
  • Prolongo, S. G.
  • Moriche, R.
  • Jimenez-suarez, A.
  • Urena, A.
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Polymer Science
Fecha: Septiembre 2016
Volumen: 23
Materias:
Palabras Clave Informales: Self-heating ; Joule effect ; Composite ; Carbon nanotube ; Graphene
Escuela: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Departamento: Materiales y Producción Aeroespacial
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Self-heating of conductive nanofilled resins due to the Joule effect is interesting for numerous applications, including computing, self-reparation, self-post-curing treatment of resins, fabrication of adhesive joints, de-icing coatings and so on. In this work, we study the effect of the nature and amount of graphitic nanofiller on the self-heating of epoxy composites. The addition of graphitic nanofillers induced an increase in the thermal conductivity of the epoxy resins, directly proportional to the nanofiller content. Percolation was not observed because of the heat transport through phonons. In contrast, the electrical conductivity curves present a clear percolation threshold, due to the necessity of an electrical percolation network. The electrical threshold is much lower for composites reinforced with carbon nanotubes (CNTs, 0.1 wt.%) than for the resin filled with graphene nanoplatelets (GNPs, 5 %). This fact is due to their very different specific areas. The composites filled with CNTs reach higher temperatures than the ones reinforced with GNPs, applying low electrical voltage because of their higher electrical conductivity. In contrast, the self-heating is more homogeneous for the GNP/epoxy resins due to their higher thermal conductivity. It was also confirmed that the self-heating is repetitive in several cycles, reaching the same temperature when the same voltage is applied.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaMAT2013-46695-C3-1-RSin especificarSin especificarMateriales multifuncionales con nanoestructuras de carbono (grafeno y nanotubos): uso como materiales compuestos, adhesivos y sensores estructurales.
Comunidad de MadridP2013/MIT-2862Sin especificarSin especificarMateriales multifuncionales para los retos de la sociedad

Más información

ID de Registro: 45937
Identificador DC: http://oa.upm.es/45937/
Identificador OAI: oai:oa.upm.es:45937
Identificador DOI: 10.1007/s10965-016-1092-4
URL Oficial: https://link.springer.com/article/10.1007/s10965-016-1092-4#citeas
Depositado por: Memoria Investigacion
Depositado el: 02 Feb 2018 12:40
Ultima Modificación: 02 Feb 2018 12:40
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