Predicting the Yield Stress of Polymer Glasses Directly from Processing Conditions: Application to Miscible Systems
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T. A. P. Engels
Abstract
A previously developed model which predicts the yield stress of a polymer glass directly from processing conditions is applied to a system of miscible polymers. The selected system consists of a blend of polycarbonate with polyester and three blend compositions of increasing weight percentages polyester are investigated with respect to their aging kinetics. Based on these kinetics, the yield stress as it results form the thermal history experienced during processing is predicted and found to be in good agreement with experimental results. The parameters governing the evolution of the yield stress are shown to follow the rule of mixtures, enabling the prediction of the yield stress of any blend composition.
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© 2009, Carl Hanser Verlag, Munich
Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Modeling the Temperature Development of Wall-slipping Polymers in Single-screw Channels
- A Novel Dilatometer for PVT Measurements of Polymers at High Cooling – and Shear Rates
- Analysis of Heat Transfer in PVC Profiles during the Extrusion Calibration/Cooling Step
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- A Direct 3D Numerical Simulation Code for Extrusion and Mixing Processes
- The Resarch for Asphalt Modified with Phosphorus Trichloride/SBS
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- Predicting the Yield Stress of Polymer Glasses Directly from Processing Conditions: Application to Miscible Systems
- Numerical Simulation of a Thermoviscoelastic Frictional Problem with Application to the Hot-Embossing Process for Manufacturing of Microcomponents
- A Design to Study Flow Induced Crystallization in a Multipass Rheometer
- Modeling of Melt Conveying in a Novel Screw-Nested Extruder
- Rheological and Thermal Properties of a Model System for PIM
- PPS-News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Artikel in diesem Heft
- Contents
- Contents
- Regular Contributed Articles
- Modeling the Temperature Development of Wall-slipping Polymers in Single-screw Channels
- A Novel Dilatometer for PVT Measurements of Polymers at High Cooling – and Shear Rates
- Analysis of Heat Transfer in PVC Profiles during the Extrusion Calibration/Cooling Step
- Study on the Bleeding Mechanism of Slip Agents in a Polypropylene Film using Molecular Dynamics
- A Direct 3D Numerical Simulation Code for Extrusion and Mixing Processes
- The Resarch for Asphalt Modified with Phosphorus Trichloride/SBS
- The Effect of Bead Vacuum on Slot Die Coating
- Predicting the Yield Stress of Polymer Glasses Directly from Processing Conditions: Application to Miscible Systems
- Numerical Simulation of a Thermoviscoelastic Frictional Problem with Application to the Hot-Embossing Process for Manufacturing of Microcomponents
- A Design to Study Flow Induced Crystallization in a Multipass Rheometer
- Modeling of Melt Conveying in a Novel Screw-Nested Extruder
- Rheological and Thermal Properties of a Model System for PIM
- PPS-News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts