Graphene-CNTs into Neuron-Synapse Like Configuration a New Class of Hybrid Nanocomposites

Abstract:

This paper describes the experimental procedures for developing and testing of a new class of hybrid nanocomposites, the neuron-synapse configuration ones. Two carbon based nanostructures, multiwall carbon nanotubes and multi-layered graphene, were incorporated to carbon epoxy laminated. The processing technique employed which includes a combination of sonication and high shear mixing allows the formation of a neuron-synapse nanostructure. X-ray diffractometry indicates that multi-layer graphene (MLG) has an average diameter close to 22 nm. TEM observations and raman spectroscopy revealed a thickness of 10 graphene layers, and a hybrid nanostructure where MWNT interpenetrated the MLG nanostructure. The hybrid nanostructure seems to be linked by Van der Walls bonds. This could be the reason for large crack density generated during short-beam bending tests. No significant stiffness changes were observed in both, tensile and bending, tests, while tensile strength were improved by 19% with 1 wt.% addition of graphene the interlaminar shear strength, was increased by 22% with the addition of MWNTs and 2.5% with the graphene (1 wt.%) and MWNT (0.3 wt.%) together.

• Periodical: Advanced Materials Research (Volume 1119)
• Pages: 116-120
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1119.116
• Online since: July 2015
• Authors: Antonio F. Avila*, Aline M. de Oliveira, Viviane C. Munhoz, Glaucio C. Pereira
• Keywords: Carbon Nanotubes, Composite Materials, Graphene, Mechanical Properties, Nanostructure Morphology

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