Birefringence and Mechanical Property Development in Melt Spinning Cyclopolyolefin Filaments
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M.-H. Hong
Abstract
An experimental study of the characterization melt spinning cyclopolyolefins is presented. The shear and complex viscosities were measured and the data was found to fit the Cox-Merz relation. The birefringence of the melt-spun filaments was determined and correlated with spinline stress. These were found to be much lower than polycarbonate and polystyrene filaments melt spun under the same conditions. The birefringence was represented in terms of polymer chain orientation. The uniaxial mechanical behavior was also measured. The Young's modulus and tensile strength generally increased with spinline stress and orientation for most cyclopolyolefins. The elongation to break decreased with measured polymer chain orientation for most cyclopolyolefins. For others it was enhanced.
© 2002, Carl Hanser Verlag, Munich
Articles in the same Issue
- Editorial
- Twelfth of a Series: Father of Synthetic Fiber Industry Wallace Hume Carothers
- Special Paper
- The Matching of Experimental Polymer Processing Flows to Viscoelastic Numerical Simulation
- Single and Twin Screw Extrusion
- Polymer Pellet Flow out of the Hopper into the First Section of a Single Screw
- Estimation of Residence Time Distribution in two Elements of a Ko-Kneader
- Flow Characteristics of Screws and Special Mixing Enhancers in a Co-rotating Twin Screw Extruder
- Reactive Extrusion
- Bulk Polymerization of ε-Caprolactone in an Internal Mixer and in a Twin Screw Extruder
- Die Extrusion
- Flow Instabilities of Linear PE in Capillary Dies
- In-line Ultrasonic Monitoring of Filler Dispersion during Extrusion
- Fibers and Film
- Birefringence and Mechanical Property Development in Melt Spinning Cyclopolyolefin Filaments
- Injection Molding
- An Empirical Study of the Surface Blush in Gas-Assisted Injection Molded Parts
- Use of the Fast-cool pVT Data for Shrinkage Analysis in Injection Molding
- Composite Processing
- Impregnation Behaviors in Composite Processing
Articles in the same Issue
- Editorial
- Twelfth of a Series: Father of Synthetic Fiber Industry Wallace Hume Carothers
- Special Paper
- The Matching of Experimental Polymer Processing Flows to Viscoelastic Numerical Simulation
- Single and Twin Screw Extrusion
- Polymer Pellet Flow out of the Hopper into the First Section of a Single Screw
- Estimation of Residence Time Distribution in two Elements of a Ko-Kneader
- Flow Characteristics of Screws and Special Mixing Enhancers in a Co-rotating Twin Screw Extruder
- Reactive Extrusion
- Bulk Polymerization of ε-Caprolactone in an Internal Mixer and in a Twin Screw Extruder
- Die Extrusion
- Flow Instabilities of Linear PE in Capillary Dies
- In-line Ultrasonic Monitoring of Filler Dispersion during Extrusion
- Fibers and Film
- Birefringence and Mechanical Property Development in Melt Spinning Cyclopolyolefin Filaments
- Injection Molding
- An Empirical Study of the Surface Blush in Gas-Assisted Injection Molded Parts
- Use of the Fast-cool pVT Data for Shrinkage Analysis in Injection Molding
- Composite Processing
- Impregnation Behaviors in Composite Processing
