Wave Pattern Instability in Multilayer Coextrusion - An Experimental Investigation, 1996 Polymers, Laminations & Coatings Conference Proceedings

Flow instabilities are a limiting factor in most multilayer coextrusion processes. Based on topography these instabilities may be classified into three distinct types; zig-zag, 2. scattering and 3. wave. This report deals with “wave” instability. Recent experimental work has shed light on this least recognized and poorly understood class of multilayer instabilities. It appears be affected by die design and structure asymmetry. primary rheological discriminator appears to be the extensional viscosity of the polymers.

Author: Ramanathan, R., Rehg, T., Schrenk, W. J., Shanker, R., Jons, S., Headley, D.
Wave Pattern Instability in Multilayer Coextrusion - An Expe
Wave Pattern Instability in Multilayer Coextrusion - An Experimental Investigation, 1996 Polymers, Laminations & Coatings Conference Proceedings
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