Adhesion evaluation of polymers is important from academic and industrial points of view. In some products like tires, cords are used to reinforce rubber. Tire cord-rubber adhesion can be evaluated using static and dynamic methods. The static methods are commonly used for qualification of raw materials. These methods are not suitable for prediction of durability of the cord/rubber system in real conditions. The dynamic adhesion tests (e.g. fatigue method) involve some important parameters to simulate the real conditions of cord/rubber-composite usage. So they produce reliable results in comparison to static adhesion results. Increase in temperature of cord/rubber system occurs during running of tire. Adhesion usually decreases with increasing temperature. So the static adhesion test (e.g. H-pull test) results that are measured in the ambient temperature (23±2°C) can not be considered as the composite performance in the utilization condition. Although heat build up occurs in the test samples during the fatigue test procedure, but this is not enough to illustrate the decreasing effect of the increased temperature on the results. The authors produced a heat chamber to improve the dynamic test and simulate running condition to evaluate real cord/rubber adhesion at elevated temperatures.
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