Functionalization of Multi-Walled Carbon Nanotube and Mechanical Property of Epoxy-Based Nanocomposite

Authors

  • Wesley Francisco Instituto Tecnológico de Aeronáutica http://orcid.org/0000-0002-0957-468X
  • Filipe Vargas Ferreira Instituto Tecnológico de Aeronáutica
  • Eduardo Vargas Ferreira Universidade Federal de Juiz de Fora
  • Luciana de Simone Cividanes Instituto Tecnológico de Aeronáutica
  • Aparecido dos Reis Coutinho Universidade Metodista de Piracicaba
  • Gilmar Patrocínio Thim Instituto Tecnológico de Aeronáutica

Keywords:

Epoxy matrix composite, Carbon nanotubes, Vickers hardness

Abstract

The focus of this study is to evaluate the effect of carboxyl and amino functionalization of multiwalled carbon nanotubes on the mechanical property of the epoxy resin filled with modified carbon nanotubes. The carbon nanotubes were treated with sulfuric and nitric acids and also with hexamethylenediamine. The presence of acid and amine chemical groups on the carbon nanotube surface was confirmed by X-ray photoelectron spectroscopy. The composites were produced with epoxy resin and modified carbon nanotubes. Vickers hardness tests were carried out on the composites and neat resin. The results showed an increase of hardness in the composite prepared with functionalized carbon nanotubes. This phenomenon is due to the fact that the chemical interaction between modified carbon nanotube and epoxy resin is much stronger than between pristine carbon nanotube and epoxy resin. This stronger interaction is related to the presence of functionalized carbon nanotubes.

Author Biographies

Wesley Francisco, Instituto Tecnológico de Aeronáutica

Divisão de Ciências Fundamentais

Filipe Vargas Ferreira, Instituto Tecnológico de Aeronáutica

Divisão de Ciências Fundamentais

Eduardo Vargas Ferreira, Universidade Federal de Juiz de Fora

Departamento de Estatística

Luciana de Simone Cividanes, Instituto Tecnológico de Aeronáutica

Divisão de Ciências Fundamentais

Aparecido dos Reis Coutinho, Universidade Metodista de Piracicaba

Laboratório de Materiais Carbonosos

Gilmar Patrocínio Thim, Instituto Tecnológico de Aeronáutica

Divisão de Ciências Fundamentais

Downloads

Published

2015-09-09

Issue

Section

Original Papers