What’s New in Dynamic Mechanical Analysis?


Dynamic mechanical analysis (DMA) is a well-established technique for characterizing mechanical properties of all kinds of materials, particularly polymers or polymer-based products such as thermoplastics, thermosets, elastomers, adhesives, paints and coatings, films and fibers, as well as composites.

In this webinar you will learn how DMA can be used to gain a better understanding of the viscoelastic and thermal properties of your material. The theoretical basics of DMA measurements will be covered along with the test methods and the information gained from those. Various DMA applications ranging from polymer plastics, rubbers to composites will be discussed and the flexibility and versatility of such a 2-in-1 device concept will be demonstrated for extended polymer characterization.

DMA can provide quantitative and qualitative data regarding:

  • Viscoelastic moduli and damping
  • Material structure and morphology
  • Relaxation behavior (Primary, secondary)
  • Influence of fillers and fibers in polymers
  • Crystallization/melt<wbr />ing processes
  • Curing behavior

Detailed information about these properties is crucial for new material development as well as for design of new production processes. A new measuring device concept is introduced which combines an electronically commutated (EC) motor as rotational top drive and a moving magnet linear drive or another EC motor, as bottom drive to enable rheological measurements and DMA on one single device. The concept enables various modes of operation by using different combinations of the bottom drive. Besides working in the rheological modes such as separate motor transducer (SMT), combined motor transducer (CMT), counter-rotation and counter-oscillation the device is suitable to perform dynamic mechanical analysis in bending, tension, compression, and torsion as well as thermomechanical analysis (TMA).

Key Takeaways

  • Understand the benefits of combined Dynamic Mechanical Analysis and Rheology
  • Learn the design and benefits of a true multi-drive rheometer
  • Learn the current technologies, measurements and applications used in material development and testing


Language: English
Trainer: Dr. Abhi Shetty
Abhi Shetty

Dr. Abhishek Shetty is a Lead Scientist working at the Advanced Technical center at Anton Paar USA. Dr. Shetty received his BS degree in Chemical Engineering from National Institute of Technology Karnataka and MS and PhD from University of Michigan, Ann Arbor, USA.  Dr. Shetty has over 15 years of working experience in academia, CPG and Advanced instrumentation space. He is a named inventor on 2 US patents, has published several peer-reviewed scientific journal articles which have garnered hundreds of citations and also has presented at several scientific technical conferences.  As the Lead Scientist at Anton Paar, his responsibilities are to develop next generation materials characterization methods relevant to Anton Paar’s rheology portfolio. Dr. Shetty's work with teams spans across the globe to develop new advanced applications using advanced rheometric tools. His work has been featured in prestigious journals such as Proceedings of the National Academy of Sciences (PNAS), Science Advances, Physical Review Letters (PRL), Journal of Rheology (JOR) etc.