Effects of Testing Parameters on Dynamic Mechanical Analysis Results of Damping Rubbers

In order to evaluation the influences of testing parameters such as testing frequency, heating rate and testing mode on dynamic mechanical analysis (DMA) results, damping rubbers were prepared and mechanical properties were studied by DMA method. The results indicate that the testing frequency and heating rate were both important influence factors on the DMA results. The dynamic mechanical properties moved to higher temperature direction with the increasing of testing frequency and heating rate. It was best to choose lower heating rate for DMA test. And testing modes, force and target amplitude all could affect the accuracy of the test results.