Effect of dispersion of MWCNTs on the static and dynamic mechanical behavior of epoxy matrix nanocomposites |
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| Authors: | G C Papanicolaou K P Papaefthymiou A F Koutsomitopoulou D V Portan S P Zaoutsos |
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| Affiliation: | (1) Composite Materials Group (CMG), Department of Mechanical and Aeronautics Engineering, University of Patras, 26500 Patras, Greece;(2) Faculty of Applied Chemistry and Materials Science, University Politehnica, Spl. Independentei 313 1, Bucharest, Romania;(3) Laboratory of Advanced Materials and Constructions (LAMCO), Department of Mechanical Engineering, Technological Educational Institute of Larissa, 41110 Larissa, Greece |
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| Abstract: | In this investigation, specimens of MWCNT-epoxy nanocomposites were prepared by two different dispersion methods including
the use of ultrasonication, and high speed shear mixing. The dispersion degree between MWCNT and polymer resin was analyzed
after completing the curing reaction, by scanning electron microscopy. The effect of the nanotubes dispersion achieved on
the properties of the manufactured nanocomposite was analyzed through static three point bending tests and dynamic mechanical
thermal analysis. Interesting results concerning the dispersion effect of MWCNTs added to the polymer matrix on the storage
and loss moduli as well as on tanδ and T
g values of the specimens manufactured by the sonication and high speed shear mixing methods were derived. |
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