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



Date: 2019-10-29, 11:00 - 12:00 (EDT UTC-04:00)
Language: English
Trainer: Dr. Abhi Shetty

Dr. Abhishek Shetty is the Lead Scientist for the Rheology division at Anton Paar USA. Dr. Shetty has extensive expertise in new product and process development, leading large commercialization teams, discovery projects, new technology evaluation and new product innovation. As Lead Scientist for Rheology at Anton Paar USA, Dr. Shetty's work includes partnering with business and collaboration partners in academia and industry to discover new testing needs. Dr. Shetty's work with teams spans across the globe to develop new advanced applications pertaining to rheology, using advanced rheometric tools. Dr. Shetty received his degrees in Chemical Engineering from National Institute of Technology Karnataka (BS) and University of Michigan (MS) (Ph.D).