Adhesives for the Bonding of Graphite/Glass Composites

An adhesive bonding study was conducted to generate data required for the full utilization of graphite and continuous glass reinforced plastics. From the screening of a wide range of acrylic, epoxy, and urethane adhesives, one adhesive of each kind was selected for further evaluation. The screening was done on the basis of strength comparisons of adhesive bonded samples at elevated temperatures and under different surface treatments, cure cycle, and bond thickness conditions. Environmental effects, such as heat and humidity exposure on pre-stressed and unstressed samples, have also been studied for some of the selected adhesives.