2014 Volume 50 Issue 9 Pages 282-288
In this present report, the surface color of adhesion was studied to be related to the strength of adhesive as the non-destructive test of the adhesive structures under high temperature circumstances. In other word, the deformation and the strength under tensile test of the adhesive joint which had been under high temperature circumstance was related to the surface color of adhesion. One liquid curing epoxy resin and roll steel for general structure SS400 were used for the adhesion and the adherend, respectively. Firstly, the thin film bulk test piece and the adhesive single lap joint were fabricated to investigate the mechanical properties of epoxy resin and the strength of adhesive joint under high temperature circumstance. Next, the relationship between the surface color of adhesive and the adhesive strength under high temperature circumstance was investigated. Moreover, the experimental result revealed that the strength of adhesive joint under the same circumstance as the experimental condition was able to be evaluated and predicted by measuring the surface color of adhesion quantitatively.
