THE EFFECT OF FULLERENE C60 ON THE MECHANICAL BEHAVIOR OF EPOXY RESIN

D. V. Pikhurov, V. V. Zuev


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Abstract

Fullerene C60 / epoxy polymers nanocomposites with different C60 loading (0.01-0.12 wt.%) have been prepared. Mechanical testing shows that mechanical and toughening properties of composites are greatly improved. The addition of fullerene C60 increased the modulus of elasticity and (up to 20%) and shock resistance nearly three times, but the glass transition temperature was unaffected. The measured shock resistance was also increased, from 38 to 115 kJ/m2 with the addition of 0.12wt.% of fullerene C60. The toughening mechanism has been discussed. With the dielectric spectroscopy it is shown that the destruction mechanism changes are caused by the growth of intermolecular interactions of nanoparticle - matrix and, as a result, retardation of the molecular chains mobility in the polymer matrix.


Keywords: epoxy resins, fullerene C60, mechanical properties, shock resistance, dielectric properties

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