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Effect of carbon nanotubes addition on the mechanical and thermal properties of epoxy matrices

By Marcio Rodrigo Loos, Luiz Antônio Ferreira Coelho, Sérgio Henrique Pezzin and Sandro Campos Amico


In this work, nanocomposites were prepared by adding a small amount of single walled carbon nanotubes (SWCNTs) to an epoxy resin aiming to study the resulting mechanical, viscoelastic and thermal properties of the nanocomposites. To optimize the processing of the nanocomposites and to favor a homogeneous dispersion of the SWCNTs on the matrix, acetone was used to reduce resin viscosity, increasing diffusion of the SWCNTs in the solution. The epoxy/SWCNTs/acetone systems were also sonicated in order to minimize entanglement of the SWCNTs. The systems were characterized by Fourier transform infrared spectroscopy, Raman spectroscopy, thermogravimetry, differential scanning calorimetry and dynamic mechanical analysis. The results indicated that the addition of small amounts of SWCNTs to epoxy leads to slight structural changes in the epoxy matrix which, together with the presence of SWCNTs, may reflect on its mechanical and viscoelastic propertie

Topics: Nanotubos de carbono, Carbon nanotubes, Epoxy matrix, Nanocompósitos, Nanocomposites, Mechanical properties
Year: 2010
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