Transient Swell of a High Density Polyethylene Using Adjustable Gap Slit Die
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Abstract
A novel slit die with an adjustable gap is designed to perform transient swell measurements while changing the die gap dynamically. A generalized control model is developed to predict time-dependent swell using characteristic relaxation time and corresponding steady state swell as model parameters. Further, a series of slit dies are designed and used to measure steady state thickness swell of a high-molecular-weight blow-molding grade high density polyethylene resin under various operating and geometrical conditions. A generalized expression for steady state thickness swell is obtained by applying multi-variable nonlinear regression on thus obtained steady state thickness swell data, and is used in the empirical control model to predict transient extrudate swell.
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Articles in the same Issue
- Contents
- Contents
- Editorial
- Editorial
- Special Issue Contributions – Review Article
- Process Induced Defects in Liquid Molding Processes of Composites
- Special Issue Contributions
- Crystallization of Polymers in Processing Conditions: An Overview
- Modelling of the Plastisol Knife Over Roll Coating Process
- Low Density Polypropylene/Waste Cellulose Fiber Composites by High-Shear Thermo-Kinetic Mixer
- Evaluation of Structures and Morphologies of Recycled PC/PET Blends Fabricated by High-Shear Kneading Processing
- Transient Swell of a High Density Polyethylene Using Adjustable Gap Slit Die
- Effect of Solvent Volatility on Diameter Selection of Bicomponent Nanofibers Produced by Gas Jet Fiber Process Test
- Flow and Thermal History Effects on Morphology and Tensile Behavior of Poly(oxymethylene) Micro Injection Molded Parts
- Tailoring Heat-Seal Properties of Biodegradable Polymers through Melt Blending
- Development of Dispersion during Compounding and Extrusion of Polypropylene/Graphite Nanoplates Composites
- The Grafting of PE-g-MA Chains on Graphene Derivatives to Improve Tensile Properties of Polyethylene
- High-Pressure Preform Foam Blow Molding
- Fluid Elasticity in Plastic Pipe Extrusion: Loads on Die Barrel
- Rheological In-Mold Measurements and Characterizations of Sheet-Molding-Compound (SMC) Formulations with Different Constitution Properties by Using a Compressible Shell Model
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Articles in the same Issue
- Contents
- Contents
- Editorial
- Editorial
- Special Issue Contributions – Review Article
- Process Induced Defects in Liquid Molding Processes of Composites
- Special Issue Contributions
- Crystallization of Polymers in Processing Conditions: An Overview
- Modelling of the Plastisol Knife Over Roll Coating Process
- Low Density Polypropylene/Waste Cellulose Fiber Composites by High-Shear Thermo-Kinetic Mixer
- Evaluation of Structures and Morphologies of Recycled PC/PET Blends Fabricated by High-Shear Kneading Processing
- Transient Swell of a High Density Polyethylene Using Adjustable Gap Slit Die
- Effect of Solvent Volatility on Diameter Selection of Bicomponent Nanofibers Produced by Gas Jet Fiber Process Test
- Flow and Thermal History Effects on Morphology and Tensile Behavior of Poly(oxymethylene) Micro Injection Molded Parts
- Tailoring Heat-Seal Properties of Biodegradable Polymers through Melt Blending
- Development of Dispersion during Compounding and Extrusion of Polypropylene/Graphite Nanoplates Composites
- The Grafting of PE-g-MA Chains on Graphene Derivatives to Improve Tensile Properties of Polyethylene
- High-Pressure Preform Foam Blow Molding
- Fluid Elasticity in Plastic Pipe Extrusion: Loads on Die Barrel
- Rheological In-Mold Measurements and Characterizations of Sheet-Molding-Compound (SMC) Formulations with Different Constitution Properties by Using a Compressible Shell Model
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts