Stretchability and Properties of Biaxially Oriented Polypropylene Film
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T. Kanai
Abstract
The double bubble tubular film (DBTF) process is a more economical way of producing biaxially oriented film, when compared to the tenter biaxially oriented film process. This film manufacturing technique has been widely used to produce biaxially oriented films because of good shrinkability and high physical properties. Recently, shrinkage film for this usage is required to have good stretchability and shrinkage strength. But the biaxial stretchability changes of polypropylenes and the reasons for such have not been reported upon systematically.
In this report, the relationship between stretchability and material design of various polypropylenes (PP) for biaxially oriented film, which are most popular polymers, was investigated. Several different ethylene contents and melt flow indices (MI) of PP were examined. There was a correlation between MI, ethylene content and the stretchability of the DBTF. A random copolymer with MI 2 g/10 min and ethylene content 4.0 wt.% gave good stretchability. The most suitable composition distribution for stretching and the properties of biaxially oriented films were studied by using the temperature rising elution fractionation.
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Articles in the same Issue
- Contents
- Rapid Communications
- A Novel High Flow Rate Pin for Water-assisted Injection Molding of Plastic Parts with a More Uniform Residual Wall Thickness Distribution
- Regular Contributed Articles
- Structure Property Relationships in PA 6 and PP Copolymers Blended by Single and Twin Screw Extrusion
- Stretchability and Properties of Biaxially Oriented Polypropylene Film
- Dynamic Mold Surface Temperature Control Using Induction and Heater Heating Combined with Coolant Cooling
- Visualization of Melt-Flow Behavior Inside the Runner in Ultra High Speed Injection Molding
- Effects of Cavity Conditions on Transcription Molding of Microscale Prism Patterns Using Ultra-High-Speed Injection Molding
- Effect of Melt and Mold Temperature on Fiber Orientation during Flow in Injection Molding of Reinforced Plastics
- Invited Paper
- Polymer/Layered Silicate Nano-composites
- Regular Contributed Articles
- Paste Extrusion of Polytetrafluoroethylene: Temperature, Blending and Processing Aid Effects
- Influence of Viscosity-interface Modifier Interactions on Performance and Processability of Rice Hull PE Composites
- Single and Multi Objective Optimization for Injection Molding Using Numerical Simulation with Surrogate Models and Genetic Algorithms
- A Process Classification Number for the Solidification of Crystallizing Materials
- Effect of Aerodynamics on Film Blowing Process
- Analysis of Necking Deformation Behavior in High-Speed In-line Drawing Process of PET by On-line Diameter and Velocity Measurements
- PPS News
- PPS News
- Seikei-Kakou Abstracts
- Seikei-Kakou Abstracts
Articles in the same Issue
- Contents
- Rapid Communications
- A Novel High Flow Rate Pin for Water-assisted Injection Molding of Plastic Parts with a More Uniform Residual Wall Thickness Distribution
- Regular Contributed Articles
- Structure Property Relationships in PA 6 and PP Copolymers Blended by Single and Twin Screw Extrusion
- Stretchability and Properties of Biaxially Oriented Polypropylene Film
- Dynamic Mold Surface Temperature Control Using Induction and Heater Heating Combined with Coolant Cooling
- Visualization of Melt-Flow Behavior Inside the Runner in Ultra High Speed Injection Molding
- Effects of Cavity Conditions on Transcription Molding of Microscale Prism Patterns Using Ultra-High-Speed Injection Molding
- Effect of Melt and Mold Temperature on Fiber Orientation during Flow in Injection Molding of Reinforced Plastics
- Invited Paper
- Polymer/Layered Silicate Nano-composites
- Regular Contributed Articles
- Paste Extrusion of Polytetrafluoroethylene: Temperature, Blending and Processing Aid Effects
- Influence of Viscosity-interface Modifier Interactions on Performance and Processability of Rice Hull PE Composites
- Single and Multi Objective Optimization for Injection Molding Using Numerical Simulation with Surrogate Models and Genetic Algorithms
- A Process Classification Number for the Solidification of Crystallizing Materials
- Effect of Aerodynamics on Film Blowing Process
- Analysis of Necking Deformation Behavior in High-Speed In-line Drawing Process of PET by On-line Diameter and Velocity Measurements
- PPS News
- PPS News
- Seikei-Kakou Abstracts
- Seikei-Kakou Abstracts
