Nonisothermal two‐dimensional film casting of a viscous polymer Journal Articles

abstract

• AbstractA model is presented for simulating two‐dimensional, nonisothermal film casting of a viscous polymer. The model accommodates the effects of inertia and gravity, and allows the thickness of the film to vary across the width, but it excludes film sag and die swell. Based on the simulation results, three factors are shown to contribute to reducing neck‐in and promoting a uniform thickness: the self‐weight of the material, for low viscosity polymers; nonuniform thickness and/or velocity profiles at the die; and cooling of the film, especially when localized cooling jets are employed.

authors

• Smith, Spencer
• Stolle, Dieter

status

• published 

publication date

• August 2000

has subject area

• 0303 Macromolecular and Materials Chemistry (FoR)
• 0904 Chemical Engineering (FoR)
• 0912 Materials Engineering (FoR)
• Polymers (Science Metrix)

published in

• Polymer Engineering and Science  Journal

keywords

• Engineering
• Engineering, Chemical
• Physical Sciences
• Polymer Science
• Science & Technology
• Technology

Digital Object Identifier (DOI)

• 10.1002/pen.11319

start page

• 1870

end page

• 1877

volume

• 40

issue

• 8