Aging Behavior of Epoxy-adhesive in Typical Atmospheric Environments

The aging performance of epoxy-adhesive exposed for one year in three typical atmospheric environments was studied by means of mechanical property testing,scanning electron microscopy (SEM) and interface analyses.The results showed that the aging resistance of epoxy-adhesive was decreased remarkably with the time increased.Temperature,rainfall and humidity were the main factors affecting the mechanical properties of the adhesive,while the sunshine irradiation was the main factor affecting the glossiness.