Applying Rheo-Microscopy to Understand The Rheology of Suspensions & Emulsions

  Overview Rheo-microscopy combines rheological measurements with simultaneous investigation of the material’s microstructure, and how it may evolve in response to external stresses or strain fields. This webinar will showcase the power of rheo-microscopy for an accurate interpretation of rheological data in the context of three case studies, each on a different material and using…

Interfacial Rheology: Fundamental Overview and Applications

Interfacial Rheology: Fundamental Overview and Applications Overview Interfacial rheology dominates the behavior of many complex fluid systems. Whether the system is characterized by a fluid-fluid interface or fluid-air interface, these characteristics influence the behavior of biological systems, oil recovery, personal care products, food and more. Learn the basic forces that drive interfacial dynamics and…

Designing New Materials for Additive Manufacturing: Vat Photopolymerization

Designing New Materials for Additive Manufacturing: Vat Photopolymerization Overview 3D printing, or additive manufacturing (AM), provides opportunities to create previously unattainable geometric objects through layer-by-layer fabrication. Novel macromolecular structures and synthetic methods coupled with unique printing methods lead to 3D part generation with micron-scale resolution and tunable to emerging technologies. By tuning polymer structure,…

An Introduction To High Pressure Rheology

An Introduction To High Pressure Rheology High pressure rheology explores phenomena that are not accessible at ambient laboratory conditions. Three of the advantages of using a pressure rheometer cell include a controlled environment for volatile fluids, saturating fluids with soluble constituents, and exploring new phase space using a combination of temperature and pressure.

Randy H. Ewoldt: Experimental Challenges of Shear Rheology, How to Avoid Bad Data

Randy H. Ewoldt: Experimental Challenges of Shear Rheology, How to Avoid Bad Data How do you know when to trust your rheology data? How do you avoid bad data? Is there a checklist? Can you co-plot quantitative experimental boundaries against measured data? This presentation will discuss techniques for identifying and minimizing experimental errors and for…

Norman J. Wagner: An Introduction to Colloidal Suspension Rheology

Norman J. Wagner: An Introduction to Colloidal Suspension Rheology Colloidal suspensions are encountered across a broad range of natural phenomena and industrially relevant products and processes. From coatings and inks, to foods and pharmaceuticals, dispersions, sols, gels, and glasses of colloidal particles exhibit a rich rheological behavior. This webinar will present an introductory overview of…

Professor João Maia: The Role of Interfacial Elasticity on the Rheological Behavior of Polymer Blends

The Role of Interfacial Elasticity on the Rheological Behavior of Polymer Blends: João Maia, Ph.D. The Role of Interfacial Elasticity on the Rheological Behavior of Polymer Blends Polymer blends are commonly used to generate materials with a desired combination of performance properties and cost. Most polymer blends are compatibilized to promote stability of the otherwise immiscible…

Extensional Rheology in Polymer Processing

Extensional Rheology in Polymer Processing Extensional flows dominate many polymer processes, including blow molding, film blowing, fiber spinning, thermoforming and many others. The rheology of polymeric materials under extensional flows can differ significantly from shear flows and it is important to understand this in order to optimize both materials and processes. In this webinar, we…

An Introduction to Tribo-Rheometry: Quantifying Friction

An Introduction to Tribo-Rheometry: Quantifying Friction Tribology complements rheology, providing information on solid-solid interactions that adds insight to the bulk fluid measurements of rheology. Tribology is especially concerned with quantifying the coefficient of friction as a function of sliding speed and load force, under dry or lubricated conditions. This provides useful information about lubrication, wear,…