Theoretical Analysis of Tubular Film Extrusion and its Applications for HMW-HDPE
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Toshitaka Kanai
Abstract
Theoretical analysis of the tubular film extrusion using computer simulation presented has been used to preduct bubble shapes, velocity profiles and stretching stresses. From the theoretical analysis, maximum stretching stresses, which are closely related to film physical properties, were predicted under various process conditions.
This theoretical analysis was applied to high molecular weight HDPE tubular film process. It was found that high strength HDPE film can be produced by maintaining high stretching stress, which is obtained on the conditions of high out-put rate, high take-up speed and low temperature by reducing the heat generated by viscous dissipation.
Further, the processability of HDPE film produced using bubble stabilizing equipment was discussed.
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© 1987 Walter de Gruyter GmbH, Berlin/Boston, Germany
Artikel in diesem Heft
- Contents
- Original Contributions
- Design and Analysis of a Mandrel Process to Control the Properties of Poly(p-Phenylene Terephthalamide) Films
- Evaluation of the Viscoelastic Temperature and Pressure Shift Factor Over the Full Range of Shear Rates**
- Thermal Analysis of Fibers
- Experimental and Theoretical Study of the Flow Characteristics of Rubber Compounds in an Extruder Screw
- Theoretical Analysis of Tubular Film Extrusion and its Applications for HMW-HDPE
- Effect of Mixing and Reaction on a fast Step Growth Polymerization**
Artikel in diesem Heft
- Contents
- Original Contributions
- Design and Analysis of a Mandrel Process to Control the Properties of Poly(p-Phenylene Terephthalamide) Films
- Evaluation of the Viscoelastic Temperature and Pressure Shift Factor Over the Full Range of Shear Rates**
- Thermal Analysis of Fibers
- Experimental and Theoretical Study of the Flow Characteristics of Rubber Compounds in an Extruder Screw
- Theoretical Analysis of Tubular Film Extrusion and its Applications for HMW-HDPE
- Effect of Mixing and Reaction on a fast Step Growth Polymerization**
