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

Gonzalez Prolongo, Margarita and Del Rosario, G. and Prolongo, S. G. and Moriche, R. and Jimenez-suarez, A. and 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.

Description

Title: Joule effect self-heating of epoxy composites reinforced with graphitic nanofillers
Author/s:
  • Gonzalez Prolongo, Margarita
  • Del Rosario, G.
  • Prolongo, S. G.
  • Moriche, R.
  • Jimenez-suarez, A.
  • Urena, A.
Item Type: Article
Título de Revista/Publicación: Journal of Polymer Science
Date: September 2016
ISSN: 1022-9760
Volume: 23
Subjects:
Freetext Keywords: Self-heating ; Joule effect ; Composite ; Carbon nanotube ; Graphene
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Materiales y Producción Aeroespacial
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT2013-46695-C3-1-RUnspecifiedUnspecifiedMateriales multifuncionales con nanoestructuras de carbono (grafeno y nanotubos): uso como materiales compuestos, adhesivos y sensores estructurales.
Madrid Regional GovernmentP2013/MIT-2862UnspecifiedUnspecifiedMateriales multifuncionales para los retos de la sociedad

More information

Item ID: 45937
DC Identifier: https://oa.upm.es/45937/
OAI Identifier: oai:oa.upm.es:45937
DOI: 10.1007/s10965-016-1092-4
Official URL: https://link.springer.com/article/10.1007/s10965-016-1092-4#citeas
Deposited by: Memoria Investigacion
Deposited on: 02 Feb 2018 12:40
Last Modified: 02 Feb 2018 12:40
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