Fraunhofer Institute for Microstructure of Materials and Systems IMWS
Dynamic mechanical analysis of a rubber sample.
Dynamic Mechanical Analysis (DMA) is an established measurement technique for determining the viscoelastic behavior and mechanical properties of materials. In DMA, the sample is subjected to an oscillatory force or deformation. The measurement is typically performed as a function of temperature and frequency. In polymers, this enables the characterization of the softening behavior of materials and components, as well as the prediction of flow behavior under processing-relevant conditions.
Typical application areas of DMA include the determination of:
- softening and melting temperatures from temperature-dependent measurements
- temperature-dependent relaxation times for softening and flow processes in polymers by means of frequency- and temperature-dependent measurements
- Poisson’s ratios through the combination of DMA measurements in shear and tension
- Zero-shear viscosities of viscous liquids
- temporal evolution of chemical reactions (curing, gelation)
Please contact us. Together, we will find a solution.