An analytical model for steady coextrusion of viscoplastic fluids in thin slit dies with wall slip

• Published in: Polymer engineering and science Vol. 50; no. 4; pp. 652 - 664
• Main Author: Kalyon, Dilhan M.
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.04.2010; Wiley; Society of Plastics Engineers, Inc; Blackwell Publishing Ltd
• Subjects: Applied sciences; Equipment and supplies; Exact sciences and technology; Extrusion dies; Extrusion moulding; Extrusion process; Flow velocity; Fluid mechanics; Fluids; Machinery and processing; Mechanical properties; Moulding; Plastics; Polymer industry, paints, wood; Production processes; Shear stress; Technology of polymers; Viscosity; United States; Printability; Rheological model; Pipe flow; Isothermal flow; Theoretical study; Multiple layer; Polymer; Viscoplastic fluid; Coextrusion; Modeling; Shear viscosity; Extrusion die; Technological properties; Rheological properties

Coextrusion is widely used to fabricate multilayered products with each layer providing a separate functionality, including barrier resistance to gases, strength, and printability. Here an analytical model of the coextrusion die flow of two incompressible, viscoplastic fluids in a slit die, subject...