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 graduated from the University of Minnesota Twin Cities in 2012 with a bachelor's degree in chemistry and has spent over a decade working with advanced scientific instrumentation. He specializes in rheology, with deep expertise in powder rheology and viscoelastic materials characterization, drawing on a broader analytical background in particle characterization to inform his approach to material behavior.
As a Principal Application Scientist at Anton Paar, he supports industries ranging everywhere from pharmaceuticals to cosmetics, food products and polymers, providing hands-on training and technical expertise that helps users understand how materials flow and interact. He leads the central region's Rheology Boot Camp, a four-day hands-on training course for MCR rheometer users, and is known for making complex concepts accessible, excelling at connecting classical rheology theory to practical, real world applications
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