Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Mechanics of Hybrid NanoComposites: The Carbon Nanotube/Graphene Effect into Failure Modes
Submission Author:
Antonio Avila , MG
Co-Authors:
Suchilla Garcia Leão, Fernanda Luiza Rinco de Mendonça Lima, Marina Georgia Melo Martins, Nathalia Caroline Ferreira Menezes, Matheus Norton Mello, Antonio Avila
Presenter: Suchilla Garcia Leão
doi://10.26678/ABCM.COBEM2017.COB17-1125
Abstract
This paper focuses on non-covalent functionalization of carbon nanotubes (CNT) and graphene GN) by employing non- and ionic surfactants. No changes on ultimate strength was noticed. The stiffness and failure strain were affected by the carbon based nanostructures dispersion. The increase Young’s modulus was the same for GN and CNTs, around 9.0 %, but in different concentrations (GN 0.075 m/m % and CNT 0.15 m/m %). The increase on ID/IG peaks on Raman spectroscopy demonstrates a good interaction. The original GN ratio is around 0.17, the addition of CO890 lead to an aspect ratio of 0.26. For the CNT, the ID/IG ratio was equal to 1.0, and a moderate increase on ID/IG, i.e. 1.08 was noticed for CNT/SDBS. The FTIR analysis show a strong interaction for CNT/SDBS and GN/CO890. These interactions were accountable to the increase on energy required for breaking the nanostructures, which can be translated by an increase on stiffness and strength.
Keywords
Composites, carbon nanotubes, failure modes, graphene
