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The effect of the surface modification of carbon nanotubes on their dispersion in the epoxy matrix Cover

The effect of the surface modification of carbon nanotubes on their dispersion in the epoxy matrix

Open Access
|Jun 2011

Abstract

Functionalization of multi-walled carbon nanotubes (MWCNTs) has an effect on the dispersion of MWCNT in the epoxy matrix. Samples based on two kinds of epoxy resin and different weight percentage of MWCNTs (functionalized and non-functionalized) were prepared. Epoxy/carbon nanotubes composites were prepared by different mixing methods (ultrasounds and a combination of ultrasounds and mechanical mixing). CNTs modified with different functional groups were investigated. Surfactants were used to lower the surface tension of the liquid, which enabled easier spreading and reducing the interfacial tension. Solvents were also used to reduce the liquid viscosity. Some of them facilitate homogeneous dispersion of nanotubes in the resin. The properties of epoxy/nanotubes composites strongly depend on a uniform distribution of carbon nanotubes in the epoxy matrix. The type of epoxy resin, solvent, surfactant and mixing method for homogeneous dispersion of CNTs in the epoxy matrix was evaluated. The effect of CNTs functionalization type on their dispersion in the epoxy resins was evaluated on the basis of viscosity and microstructure studies.

Language: English
Page range: 62 - 69
Published on: Jun 16, 2011
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open

© 2011 Maria Wladyka-Przybylak, Dorota Wesolek, Weronika Gieparda, Anna Boczkowska, Ewelina Ciecierska, published by West Pomeranian University of Technology, Szczecin
This work is licensed under the Creative Commons License.

Volume 13 (2011): Issue 2 (June 2011)