Dynamic mechanical analysis (DMA) is used to measure the mechanical properties of viscoelastic materials as a function of temperature or frequency. This helps to ensure that suitable materials with the right mechanical properties are used. The types of materials that can be analyzed include thermoplastics, thermosets, elastomers, adhesives, paints and lacquers, films and fibers, composites, foodstuffs, pharmaceuticals, fats and oils, ceramics, constructional materials and metals.
DMA is one of the most important thermal analysis techniques alongside the well-established DSC, TGA, and TMA techniques, and even allows you to determine modulus values and measure relaxation effects that often cannot be detected by DSC.
Depending on the measurement mode, DMA determines either the shear modulus (G) or the Young’s modulus (E) to provide quantitative and qualitative information on:
- Damping characteristics and viscoelastic behavior
- Polymer structure and morphology
- Primary and secondary relaxation behavior
- Crystallization processes
- Influence of fillers in polymers
In this webinar, we will discuss the basic principles of DMA and present some interesting applications.