Overview Maintaining the optimum viscosity of a molten material is key for efficiency and product quality of many industrial processes. Processing of melts at high temperatures is the basis for classical or additive manufacturing of many materials like glasses or metals. Molten slag or ash viscosity is essential for economically operating industrial gasification processes…
DetailsJan Vermant – Orthogonal Superposition Rheology OVERVIEW Superposition flows in rheology are powerful methods to understand non-linear and anisotropic viscoelasticity. Parallel Superposition experiments have been historically simple to perform, but are difficult to understand and do not provide all of the desired information. Recent developments have made Orthogonal Superposition more simple to perform, allowing…
DetailsInterfacial 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…
DetailsSummary Research rheometers present excellent platforms for the characterisation and quantification of powder flowability. Until recent years, powder characterisations have been restricted only to instruments dedicated to just that one class of materials. Now there is a growing recognition of the opportunities for extending the application of high-performance rheometers to the measurement of particulate solids.…
DetailsGerald Fuller – Interfacial Rheology 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 about the basic forces that drive interfacial dynamics and stability,…
DetailsOVERVIEW Large amplitude oscillatory shear (LAOS) is used increasingly as a tool to measure the nonlinear viscoelastic responses of soft solids and complex fluids. For many material systems the common practice of reporting only “viscoelastic moduli” (typically corresponding to the first harmonic Fourier coefficients G’1(w), G”1(w)) is insufficient and/or misleading in describing the nonlinear phenomena.…
DetailsExtensional 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…
DetailsExtensional Rheology & Analytics of Material Characterization OVERVIEW Extensional flows are important to converging and squeezing flows that occur in polymer processing operations such as injection molding, extrusion, blow molding, film blowing and calendering. Uniaxial extensional flow measurement is particularly useful in polymer characterization because it is the ‘strongest’ flow field one can generate with…
DetailsOverview Have you been tasked with answering any of the following or similar questions? Will our product flow under these conditions? What are the optimal processing conditions? Will this formulation be accepted or rejected by our sensory panel? What is the working time for this adhesive? How strong is the final composite sample? Will…
DetailsDesigning 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, printing…
DetailsOverview The viscoelastic properties of polymers play a critical role in the different stages of polymer processing operations, whether it is melting and extrusion or the performance of the final product. On most polymer data sheets, these properties are presented in the form of a melt flow index. However, this simplistic approach is inherently…
DetailsSummary Electrode manufacturing for lithium-ion batteries is a complex, multistep process that requires comprehensive material characterization to ensure quality and consistency in the final electrodes. Electrode processing involves combining active materials with binders and conductive additives to form a coating on the current collector, either as a slurry or dry coating. The mixing and coating…
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