Spinnability of Polymer Melts – a Complex Problem in Basic Research1)
-
R. Beyreuther
Abstract
Melt spinning of polymer melts is a formation process making extremely high demands on the material's continuous deformation ability by highest deformation speeds. The structural conditions of a thermoplastic polymer which are necessary for spinnability have not been exactly cleared up yet. But this knowledge gap must be closed especially with regard to the many efforts to spin fibers with new properties made from modified polymers or polymer blends. The article is begun with a pragmatic definition of the spinnability of a polymer melt. The discussion of a structural rheological model shows a correlation between dynamic rheological measurement datas of polymer melts and experimental experience about their spinnability. Proceeding from a comprehensive description of possible failure cases (fiber beak problems), results of rheological measurement of a number of different polymers, which are spinnable well, not as well or not at all, are compared. The article is concluded by some comments on open problems which have to be solved by basic research in the near future.
© 1996, Carl Hanser Verlag, Munich
Articles in the same Issue
- Contents
- Contents
- Editorial
- Eighteenth in a Series: Toshiba Machine
- Screw Extrusion
- Theoretical and Experimental Investigations of the Melting of Pellets in Co-Rotating Twin-Screw Extruders
- An Improved Flow Simulation Model for a Tangential Counter-Rotating Twin Screw Extruder
- Modeling and Experimental Study of the Flow in a Simplified Cavity Transfer Mixer
- An Analytical Model of the Conveying Behaviour of Closely Intermeshing Co-rotating Twin Screw Extruders
- Reactive Processing
- Simulation of Continuous Polymerization in a Modular Intermeshing Co-rotating Twin Screw Extruder
- Reactive Blending in a Twin Screw Extruder
- Die Extrusion
- Viscoelastic Simulations of Stratified Bicomponent Extrusion through Slit Dies
- Fibers
- Spinnability of Polymer Melts – a Complex Problem in Basic Research1)
- Molding
- Structure and Properties of Inflation Films of β-Phase Nucleating Agent-Added Polypropylene
- Inverse Modeling of Injection Molding Thermal Stresses to Optimize Temperature and Pressure History
- An Assessment of Thermal Stresses in Injection Moulded ABS Copolymer
- Rapid Communications
- Experimental Study on the Injection Compression Molding of Parts with Precision Contours
Articles in the same Issue
- Contents
- Contents
- Editorial
- Eighteenth in a Series: Toshiba Machine
- Screw Extrusion
- Theoretical and Experimental Investigations of the Melting of Pellets in Co-Rotating Twin-Screw Extruders
- An Improved Flow Simulation Model for a Tangential Counter-Rotating Twin Screw Extruder
- Modeling and Experimental Study of the Flow in a Simplified Cavity Transfer Mixer
- An Analytical Model of the Conveying Behaviour of Closely Intermeshing Co-rotating Twin Screw Extruders
- Reactive Processing
- Simulation of Continuous Polymerization in a Modular Intermeshing Co-rotating Twin Screw Extruder
- Reactive Blending in a Twin Screw Extruder
- Die Extrusion
- Viscoelastic Simulations of Stratified Bicomponent Extrusion through Slit Dies
- Fibers
- Spinnability of Polymer Melts – a Complex Problem in Basic Research1)
- Molding
- Structure and Properties of Inflation Films of β-Phase Nucleating Agent-Added Polypropylene
- Inverse Modeling of Injection Molding Thermal Stresses to Optimize Temperature and Pressure History
- An Assessment of Thermal Stresses in Injection Moulded ABS Copolymer
- Rapid Communications
- Experimental Study on the Injection Compression Molding of Parts with Precision Contours