Non-Isothermal Simulation of the Film Blowing Process Using Multi-Mode Extended Pom-Pom Model
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S. Sarafrazi
Abstract
Plastic films are largely produced using the film blowing process. Branched polymers such as LDPE are commonly used in this process to produce a variety of plastic films. In this study, recently developed eXtended Pom-Pom (XPP) model, which focuses on describing rheological behavior of branched polymers, is employed to analyze the non-isothermal flow in the film blowing process. Furthermore, the Nakamura equation for crystallization kinetics is employed to consider crystallization effects and improve prediction of the state of the stress in the film. Results of the numerical analysis show good agreement with the experimental values reported by Tas (1994) for the bubble shape and film velocity of the LDPE films. Predictions for the strain rates in machine and hoop directions which are critical for the estimation of the stress are also compared with the reported data and showed reasonably good agreement.
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© 2008, Carl Hanser Verlag, Munich
Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- The Dynamic Apparent Viscosity of Polymer Melts During Pulsatile Extrusion Flow with Vibration Force Field
- Generation of Microcellular Foams by Supercritical Carbon Dioxidein a PMMA Compound
- Influence of Uniaxial Extension on the Mechanical Properties of PET and PEN Films
- Analysis of the Isothermal Compression in Nanoimprint Lithography Assuming a Power-Law Fluid
- Non-Isothermal Simulation of the Film Blowing Process Using Multi-Mode Extended Pom-Pom Model
- Flow Analysis of Flat Spiral Dies and Comparison with Cylindrical Spiral Mandrel Dies
- Development of Polymer Blend Morphology along an Extruder with Different Screw Geometries
- A Mechanical Model for Stress Developmentin PA12 Tube Extrusion
- Shrinkage Analysis on Convex Shellby Injection Molding
- Melting Mechanism of Thermoplastic Elastomers and Comparison to Polyolefin Thermoplastic Melting Studies in a Single Screw Extruder
- Thermal Degradation of Meta- and Para-Aramid Fibers in Different Atmospheres
- Experimental Studies on Screw Characteristics in Closely Intermeshing Counter-rotating Twin Screw Extruder
- Experimental Analysis of Heat Transfer in Rotational Molding Process
- Polyetheretherketone Films with Low Thermal Expansion for Flexible Printed Circuit Boards
- Experimental Study and Modeling of Flow Behavior and Orientation Kinetics of Layered Silicate/Polypropylene Nanocomposites in Start-up of Shear Flows
- Polystyrene/Phosphonium Organoclay Nanocomposites by Melt Compounding
- PPS News
- PPS News
- Seikei-Kakou Abstracts
- Seikei-Kakou Abstracts
Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- The Dynamic Apparent Viscosity of Polymer Melts During Pulsatile Extrusion Flow with Vibration Force Field
- Generation of Microcellular Foams by Supercritical Carbon Dioxidein a PMMA Compound
- Influence of Uniaxial Extension on the Mechanical Properties of PET and PEN Films
- Analysis of the Isothermal Compression in Nanoimprint Lithography Assuming a Power-Law Fluid
- Non-Isothermal Simulation of the Film Blowing Process Using Multi-Mode Extended Pom-Pom Model
- Flow Analysis of Flat Spiral Dies and Comparison with Cylindrical Spiral Mandrel Dies
- Development of Polymer Blend Morphology along an Extruder with Different Screw Geometries
- A Mechanical Model for Stress Developmentin PA12 Tube Extrusion
- Shrinkage Analysis on Convex Shellby Injection Molding
- Melting Mechanism of Thermoplastic Elastomers and Comparison to Polyolefin Thermoplastic Melting Studies in a Single Screw Extruder
- Thermal Degradation of Meta- and Para-Aramid Fibers in Different Atmospheres
- Experimental Studies on Screw Characteristics in Closely Intermeshing Counter-rotating Twin Screw Extruder
- Experimental Analysis of Heat Transfer in Rotational Molding Process
- Polyetheretherketone Films with Low Thermal Expansion for Flexible Printed Circuit Boards
- Experimental Study and Modeling of Flow Behavior and Orientation Kinetics of Layered Silicate/Polypropylene Nanocomposites in Start-up of Shear Flows
- Polystyrene/Phosphonium Organoclay Nanocomposites by Melt Compounding
- PPS News
- PPS News
- Seikei-Kakou Abstracts
- Seikei-Kakou Abstracts