Journal
COMPOSITES PART B-ENGINEERING
Volume 98, Issue -, Pages 49-55Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2016.04.081
Keywords
Polymer-matrix composites (PMCs); Hybrid; Electrical properties; Graphene
Funding
- Ministerio de Economia y Competitividad of Spain Government [MAT2013-46695-C3-1-R]
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The electrical behaviour and mechanical properties of functionalized graphene nanoplatelets (GNPs) reinforced epoxy-based composites were evaluated. These properties were analysed scaling up from the nanocomposite to the multiscale composite material. The electrical conductivity of 12 wt % GNPs reinforced nanocomposites was in the order of 10(-4) S/m, in contrast to the in -plane conductivity of multi scale composite materials with the same GNPs content, which was found to be similar to 10(-3) S/m. This was attributed to microstructural features that also provoke the electrical conductivity through the thickness diminish down to similar to 10(-4) S/m in multiscale composites. Additionally, mechanical properties were enhanced by the dispersion of GNP in nanocomposites but experienced a reduction in glass fibre composites because of the formation of a weak interface between the GNPs filled matrix and fibres. (C) 2016 Elsevier Ltd. All rights reserved.
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