Temperature dependent ultrasonic and thermo-physical properties of polyaniline nanofibers reinforced epoxy composites

Epoxy based all polymer nanocomposites reinforced with Polyaniline (PANI) nanofibers have been prepared via sono-chemical route. Ultrasonic velocity, attenuation and thermal conductivity are measured in a wide temperature range (298–373 K) at different PANI nanofibers loadings (1 & 2 wt%) in PANI-Epoxy nanocomposites. Behavior of thermal conductivity and ultrasonic attenuation with temperature in synthesized nanocomposites is explained with help of existing phenomena. Increase in ultrasonic velocity and thus longitudinal modulus with reinforcement of nanofibers indicates that strong cohesive interaction force, which rises among the nanofibers and matrix elements.