DMA measurements can be performed under very different conditions to characterize the mechanical properties of materials. A great deal of information about a sample is obtained when the temperature, frequency or displacement amplitude is varied.
DMA samples are subjected to a periodic stress in one of several different modes of deformation. Processes and events measured by the DMA include secondary relaxations, glass transitions, crystallization, solid-solid transitions, crosslinking reactions, melting, flow behavior and the rubbery plateau.
These are described using real application examples for the following materials:
- PET
- PTFE
- Silicone oil
- Printed circuit board coatings
- EVA (curing)
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