Abstract
The effect of the addition of short carbon fibres (SCF) on the mechanical and electrical properties of conductive polymer composites (CPC) with poly(ester) and poly(epoxy) matrices has been studied. The reinforcement effect of (SCF) filled thermosets CPC is more important with poly(epoxy) than with poly(ester) matrix. Electrical measurements show a small amplitude PTC effect between 90 and 160 °C. The percolation threshold is reached for about 1% v/v SCF and higher conductivity is obtained with poly(ester) matrix. Up to 3% v/v, a good correlation is found between resistivity and relative Young's modulus.
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