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Polymer Rheology – Testing Behavior Across Time and Temperature

Rheology is an essential tool for understanding the material properties of polymers, especially in melt processing. While many are familiar with rotational or viscosity-based testing, oscillatory rheology offers valuable insights into how polymers behave under time- and temperature-dependent conditions during processes like melting, crystallization, and curing.

In this webinar, we will touch on key concepts like the linear viscoelastic region (LVER) and frequency sweeps, before diving into more advanced applications in polymer melt processing. Practical examples will include analyzing melt flow, thermal stability, and structural integrity of polymer materials. Attendees will learn how to apply oscillatory rheology to real-world challenges in polymer melt characterization and processing, enhancing their ability to interpret rheological data and optimize material performance. Whether you're familiar with oscillatory testing or expanding beyond viscosity measurements, this session will provide practical tools to tackle complex polymer melt behaviors.

John Raia (English)
John Raia

John Raia graduated from the University of Minnesota Twin Cities in 2012 with a bachelor’s degree in chemistry. He specializes in rheology, with a strong focus on powder rheology, integrating techniques like particle sizing, zeta potential, and morphology to deepen insights into material behavior.

As an Advanced Application Scientist at Anton Paar, he supports industries ranging from pharmaceuticals to cosmetics, providing training and technical expertise to help users understand how materials flow and interact. Known for making complex concepts accessible, he excels at connecting classical rheology to practical applications.