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Effects of carbon nanotube fillers dispersion on mechanical behavior of phenolic/carbon nanotube nanocomposite

Published online by Cambridge University Press:  31 July 2012

Edson Cocchieri Botelho ,
Michelle Leali Costa ,
Elilton Rodrigues Edwards ,
Thomas Burkhart  and
Bernd Lauke
Edson Cocchieri Botelho*
Affiliation:
Materials and Technology Department – São Paulo State University (UNESP), 12516-410 Guaratinguetá, São Paulo, Brazil; Mechanical Department - Leibniz-Institut für Polymerforschung, D-01069 Dresden e.V., Germany; and Institut für Verbundwerkstoffe GmbH, University of Kaiserslautern, D-67663 – Kaiserslautern, Germany
Michelle Leali Costa
Affiliation:
Materials and Technology Department – São Paulo State University (UNESP), 12516-410 Guaratinguetá, São Paulo, Brazil; and Materials Division – Departament of Science and Aerospace Technology – DCTA- São José dos Campos, São Paulo- Brazil
Elilton Rodrigues Edwards
Affiliation:
Materials and Technology Department – São Paulo State University (UNESP), 12516-410 Guaratinguetá, São Paulo, Brazil
Thomas Burkhart
Affiliation:
Materials Science Department, Institut für Verbundwerkstoffe GmbH, University of Kaiserslautern, D-67663 – Kaiserslautern, Germany
Bernd Lauke
Affiliation:
Mechanical Department - Leibniz-Institut für Polymerforschung, D-01069 Dresden e.V., Germany
*
a)Address all correspondence to this author. e-mail: ebotelho@pq.cnpq.br
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Abstract

Systematic studies have been carried out for investigating the mechanical properties of carbon nanotube (CNT)-reinforced phenolic resin. In this work, phenolic resin/CNT nanocomposite were processed using two different techniques: (i) three-roll calender device (TRC) and (ii) aqueous solution processes. In both techniques, up to 2 wt% CNT was used. In this study, it was observed that the values of tensile strength, Young’s modulus, shear stress, impact resistance and also that of the tribological properties increased directly proportional to carbon nanotube volume content. Halpin-Tsai, Voigt-Reuss and Cox equations were adopted to fit the experimental data of the tensile strength and Young’s modulus of the multiwalled carbon nanotube/phenolic resin composite. Morphological analysis was done utilizing scanning electron microscopy (SEM) and good dispersion of nanotubes within the phenolic resin matrix was revealed. Also according to the results presented in this work, SEM showed that TRC processing gave better dispersion than aqueous solution mixing. The observation that the values for mechanical properties increased more for TRC than aqueous mixed samples is consistent with this.

Keywords

Thermosetting resin (TR)Polymer-matrix composites (PMCs)Nanostructures (NS)Mechanical Testing (MT)
Type
Articles
Information
Journal of Materials Research , Volume 27 , Issue 18 , 28 September 2012 , pp. 2342 - 2351
Copyright
Copyright © Materials Research Society 2012

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