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Volume 17, Issue 1, 2008
LETTER: EFFECT OF NANODIAMOND PARTICLES ON PROPERTIES
OF EPOXY COMPOSITES
Zdeno Špitalský*1,2, Alexander Kromka3, Libor Matejka1, Peter Cernoch1, Jana Kovárová1,
Jirí Kotek1, Miroslav Šlouf1
1 Institute of Macromolekular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
2 Polymer Institute, Slovak Academy of Sciences, Bratislava, Slovakia
3 Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic
* Author to whom correspondence should be addressed, email: upolspiz@savba.sk
Received 3 October 2007; accepted 13 February 2008
ABSTRACT
The epoxy nanocomposites filled with 0.1, 0.5, and 1 wt% nanodiamonds (nanoD) were prepared and their properties were compared with neat epoxy network or epoxy nanocomposite filled with 1 wt% multiwalled carbon nanotubes (MWCNTs). The obtained nanoD-epoxy composites increased significantly thermal stability of prepared nanocomposites in comparison with neat epoxy matrix. The exponential decay of light transmittance with increasing concentration of nanoD in sample was observed. The values of storage modulus G' and glass transition temperature Tg significantly decreased by addition of nanoD to epoxy network. This is caused by inhibition of cross-linking reaction of epoxy- and amino- groups by nanoD.
Keywords: nanodiamond, carbon nanotubes, mechanical properties, thermal properties |
