8 ITMP3 / 8éme conférence internationale de photoacoustique et photothermique
J. Phys. IV France 04 (1994) C7-249-C7-252
Pulsed photoacoustic studies of thermoset curing reactionD. Horvat, J. Mozina and J. Diaci
University of Ljubljana, Faculty of Mechanical Engineering, Askerceva 6, P.O. Box 394, 61000 Ljubljana, Slovenia
A pulsed photoacoustic technique was used for generation of ultrasonic pulses along with optical detection inside a transparent polymer resin undergoing a curing reaction. The changes in acoustic parameters during the solidification process was measured and were found to agree with the accepted general model for the kinetics of the curing reaction for polyester and epoxy resins. The advantages of the acoustic characterization compared to the more common calorimetric techniques are considered.
© EDP Sciences 1994