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Transesterification of Ethylene Acetate Copolymer in a Twin Screw Extruder
Experimental and Theoretical Approaches
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F. Berzin
Veröffentlicht/Copyright:
4. Juni 2013
Abstract
The chemical modification of poly(ethylene-co-vinyl acetate) with a primary aliphatic n-alcohol in a modular co-rotating twin screw extruder was investigated. The purpose was to build a theoretical model, able to predict the extent of conversion along the screw axis. First, the influence of operating conditions (throughput, screw speed, barrel temperature and initial reactant concentrations) on the EVA copolymer conversion was experimentally examined. Then, the extent of conversion was computed by coupling flow simulation and reaction kinetics. Theoretical and experimental results were found in good agreement, what allows the prediction of the reaction extent as a function of the processing conditions.
Received: 1997-4-22
Accepted: 1997-10-1
Published Online: 2013-06-04
Published in Print: 1998-03-01
© 1998, Carl Hanser Verlag, Munich
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Artikel in diesem Heft
- Contents
- Contents
- Editorial
- J. A. Biesenberger, G. Astarita, D. C. Bogue
- Screw Extrusion/Mixing
- Modeling Solids Conveying in Polymer Extruders
- Comparison between LDPE Conventional and Autothermal Extrusion Characteristics
- Transesterification of Ethylene Acetate Copolymer in a Twin Screw Extruder
- Stabilising the Structure of HDPE by the Use of Highly-dispersed Mixture of Fe/FeO
- Pumping Characteristics of an Intermeshing Co-rotating Twin Screw Extruder
- Flow Behaviour of Blends of Poly(ethylene-Co-Acrylic Acid) and Epoxidised Natural Rubber
- Die Extrusion
- Rheological Behaviour of HDPE/PA 11 Blends
- Melt Flow Properties of LDPE/HDPE Blends in Capillary Extrusion
- Fibers and Film
- Rheological Behaviour of LLDPE/LDPE Blends under Elongational Deformation
- Processing/Structure Relationships of Mica-Filled PE-Films with Low Oxygen Permeability
- On the Charge State of Melt-Blown Polymer Materials
- Temperature Measuring in Plastics Processing with Infrared Radiation Thermometers
- Comparative Study of Structure Development in Melt Spinning Polyolefin Fibers
- Moulding
- Sintering Rheology of Semi-Crystalline Polymers
- Molding
- Melt Flow Instabilities of Filled HDPE
- Experimental Validation of Shrinkage Predictions for Injection Molded Products
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- J. A. Biesenberger, G. Astarita, D. C. Bogue
- Screw Extrusion/Mixing
- Modeling Solids Conveying in Polymer Extruders
- Comparison between LDPE Conventional and Autothermal Extrusion Characteristics
- Transesterification of Ethylene Acetate Copolymer in a Twin Screw Extruder
- Stabilising the Structure of HDPE by the Use of Highly-dispersed Mixture of Fe/FeO
- Pumping Characteristics of an Intermeshing Co-rotating Twin Screw Extruder
- Flow Behaviour of Blends of Poly(ethylene-Co-Acrylic Acid) and Epoxidised Natural Rubber
- Die Extrusion
- Rheological Behaviour of HDPE/PA 11 Blends
- Melt Flow Properties of LDPE/HDPE Blends in Capillary Extrusion
- Fibers and Film
- Rheological Behaviour of LLDPE/LDPE Blends under Elongational Deformation
- Processing/Structure Relationships of Mica-Filled PE-Films with Low Oxygen Permeability
- On the Charge State of Melt-Blown Polymer Materials
- Temperature Measuring in Plastics Processing with Infrared Radiation Thermometers
- Comparative Study of Structure Development in Melt Spinning Polyolefin Fibers
- Moulding
- Sintering Rheology of Semi-Crystalline Polymers
- Molding
- Melt Flow Instabilities of Filled HDPE
- Experimental Validation of Shrinkage Predictions for Injection Molded Products
