The Influence of Curing Condition on Adhesive Strength of Epoxy Resin Adhesive

The influence of different curing conditions (temperature, humidity) and reactant ratio on the adhesive strength of epoxy resin adhesive were studied. The result shows that curing conditions have a significant influence on the bonding effect of epoxy resin adhesive between rubber and metal matrix. When the temperature is 25 ℃, the adhesive strength of epoxy resin is the highest in the range of humidity less than 55%. When the humidity is higher, the adhesive strength will obviously decrease, and too humid environment is not conducive to the application of epoxy resin adhesives. When the humidity is 55%, the adhesive strength of epoxy resin is higher in the range of 20 ℃~25 ℃. When the temperature is increased to 40 ℃ or reduced to 10 ℃, the adhesive strength will be reduced.