In Situ Detection of Interfacial Flow Instabilities in Polymer Co-Extrusion Using Optical Coherence Tomography and Ultrasonic Techniques

Co-extrusion is a widely used processing technique for combining various polymers with different properties into a tailored multilayer product. Individual melt streams are combined in a die to form the desired shape. Under certain conditions, interfacial flow instabilities are observed; however, fun...

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Veröffentlicht in:	Polymers 2021-08, Vol.13 (17), p.2880
Hauptverfasser:	Hammer, Alexander, Roland, Wolfgang, Zacher, Maximilian, Praher, Bernhard, Hannesschläger, Günther, Löw-Baselli, Bernhard, Steinbichler, Georg
Format:	Artikel
Sprache:	eng
Schlagworte:	Coextrusion Elasticity of demand Extrusion dies Flow stability In situ measurement Investigations Multilayers Optical Coherence Tomography Polymer melts Polymers Process controls Shear stress Streams Tomography Ultrasonic methods Viscoelasticity Viscosity
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