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COBEM 2017
24th ABCM International Congress of Mechanical Engineering
CNT AND GO EPOXY NANOCOMPOSITES- AN EXPERIMENTAL COMPARISON OF MECHANICAL PROPERTIES
Submission Author:
Marina Borgert Moraes , SP
Co-Authors:
Marina Borgert Moraes, Gilmar Thim
Presenter: Marina Borgert Moraes
doi://10.26678/ABCM.COBEM2017.COB17-2920
Abstract
In this study, the mechanical properties of epoxy nanocomposites reinforced with graphene oxide (GO), non-functionalized carbon nanotubes (CNTs) and multi-walled amino functionalized carbon nanotubes (CNT-Am) were evaluated at two different weight fractions of 0.25 and 0.5%. The mechanical properties measured were ultimate tensile strength and Young’s modulus in tensile tests and flexural strength and Young’s modulus in flexural tests. Results show that nanocomposites reinforced with GO have more rigidity, presenting a higher tensile Young’s modulus (up to 48%) and a lower flexural Young’s modulus (-40%) than its CNT reinforced counterpart (up to 44% in tensile tests and -15% in bending) at 0.5% weight fraction. Also, non-functionalized CNTs have decreased both tensile and flexural properties of the epoxy matrix.
Keywords
carbon nanotubes, graphene oxide, Nanocomposites, epoxy resin, Mechanical Properties
