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The Role of Interfacial Elasticity on the Rheological Behavior of Polymer Blends

For more informative webinars, visit http://www.tainstruments.com/webinars 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 components. Compatibilizers also modify the rheology of the blend in complex and important ways. We must integrate extensional rheology, shear rheology, and other techniques to develop a complete understanding of this rich behavior. This webinar will use case studies of two compatibilized blends to elucidate the effect that compatibilizers have on the elasticity of polymer blends and the mechanism behind that behavior. Presented by Professor João Maia, Ph.D. - Department of Macro-molecular Science and Engineering - Case Western Reserve University Contact Us: https://www.tainstruments.com/contact/ Contact a Sales Rep: https://www.tainstruments.com/sales-c... Connect: FACEBOOK   / tainstruments   LINKEDIN   / ta-instruments   TWITTER   / tainstruments   INSTAGRAM   / tainstruments   CHAPTERS 0:00 Intro 2:40 Relevance of Extensional Flow 4:38 Why Polymer Blends? 8:15 Compatibilization Strategies 12:04 Morphology 13:08 Blends of Newtonian Components 15:45 Compatibilized Blends 16:35 PA-6/EPM/EPM-g-MA 17:56 Materials and Methods 19:24 Morphological Analysis on Extrudates 20:58 SAOS 24:39 Stress Relaxation After Steady Shear 27:39 Morphology 29:25 Stress Relaxation After a Step Elongation 30:59 PMMA/PS/PSOX 32:23 Chemical Composition/FTIR 32:39 Interfacial Tension 34:27 Blend Morphology (SEM) 35:02 Viscosity Ratios 36:03 SAOS 37:30 Stress Relaxation After Steady Shear 41:40 Effect of PSOX Concentration 42:50 Stress Relaxation After a Step Elongation 44:52 SALS 47:56 PP/EVOH/Na+ 49:48 Blend Morphology (SEM) 50:32 Stress Relaxation After Steady Shear 52:28 Conclusions 53:56 Q&A