Effect of Spin-Draw Rate and Stretching Ratio on Polypropylene Hollow Fiber Membrane Made by Melt-Spinning and Stretching Method
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F.-J. Wei
Abstract
A series of polypropylene hollow fiber membranes was fabricated by melt-spinning and stretching. The crystalline behavior and hard elasticity of precursor hollow fibers were studied by differential scanning calorimetry (DSC), elastic recovery and strain-stress curves. The structure and properties of membranes were investigated in detail by scanning electron microscopy (SEM), optical microscopy, pure water flux, and so on. The results showed that membranes with excellent structure and properties can be obtained at a spin-draw rate of 350 m/min and a stretching ratio of 200 %. The evolution of crystal structure was explored during the annealing and stretching processes by two-dimensional small-angle X-ray scattering (2D-SAXS). Shish-kebab structure was obtained during annealing for hollow fibers at a spin-draw rate of 350 m/min. The crystalline lamellae were destroyed and micropores were formed during the fabrication of membranes by stretching.
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© 2018, Carl Hanser Verlag, Munich
Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- Semi-Rigid Composite Foams of Calcium Sodium Aluminosilicate from Eggshells Embedded in Polyurethane
- Effect of Spin-Draw Rate and Stretching Ratio on Polypropylene Hollow Fiber Membrane Made by Melt-Spinning and Stretching Method
- A Novel Non-Planar Transverse Stretching Process for Micro-Porous PTFE Membranes and Resulting Characteristics
- Photo-Degradation of Polypropylene-Ascorbic Acid TiO2 Composite Films
- Melt Flow and Flexural Properties of Polypropylene Composites Reinforced with Graphene Nano-Platelets
- Effect of the Addition of ENR on Foam Properties of EVA/NR/Clay Nanocomposites
- Development of High Pressure Injection Technology for Normal Hydraulic Injection Molding Machines
- Influence of Electron Induced Reactive Processing and Secondary Rubber Phase on Spinnability of Polypropylene and Polypropylene/Rubber Blends
- Monitoring of Injection Molding Tool Corrosion and Effects of Wood Plastic Compound's Moisture on Material Properties
- Simulation of Micropelletization Mechanisms in Polymer Melt – Air Systems
- Cross-Linked Hydrophobic Starch Granules in Blends with PLA
- Numerical Predictions of Fiber Orientation for Injection Molded Rectangle Plate and Tensile Bar with Experimental Validations
- Fabrication of Polyethylene Terephthalate Microfluidic Chip Using CO2 Laser System
- Minimization of Warpage for Injection Molded Parts by Inverse Thermal Mold Design
- Influence of Titanium Dioxide Modified Expandable Graphite and Ammonium Polyphosphate on Combustion Behavior and Physicomechanical Properties of Rigid Polyurethane Foam
- Preparation, Foaming and Characterization of Poly(l-lactic acid))/Poly(d-lactic acid)-Grafted Graphite Oxide Blends
- A Simple Method of Fabricating Graphene-Polymer Conductive Films
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- Semi-Rigid Composite Foams of Calcium Sodium Aluminosilicate from Eggshells Embedded in Polyurethane
- Effect of Spin-Draw Rate and Stretching Ratio on Polypropylene Hollow Fiber Membrane Made by Melt-Spinning and Stretching Method
- A Novel Non-Planar Transverse Stretching Process for Micro-Porous PTFE Membranes and Resulting Characteristics
- Photo-Degradation of Polypropylene-Ascorbic Acid TiO2 Composite Films
- Melt Flow and Flexural Properties of Polypropylene Composites Reinforced with Graphene Nano-Platelets
- Effect of the Addition of ENR on Foam Properties of EVA/NR/Clay Nanocomposites
- Development of High Pressure Injection Technology for Normal Hydraulic Injection Molding Machines
- Influence of Electron Induced Reactive Processing and Secondary Rubber Phase on Spinnability of Polypropylene and Polypropylene/Rubber Blends
- Monitoring of Injection Molding Tool Corrosion and Effects of Wood Plastic Compound's Moisture on Material Properties
- Simulation of Micropelletization Mechanisms in Polymer Melt – Air Systems
- Cross-Linked Hydrophobic Starch Granules in Blends with PLA
- Numerical Predictions of Fiber Orientation for Injection Molded Rectangle Plate and Tensile Bar with Experimental Validations
- Fabrication of Polyethylene Terephthalate Microfluidic Chip Using CO2 Laser System
- Minimization of Warpage for Injection Molded Parts by Inverse Thermal Mold Design
- Influence of Titanium Dioxide Modified Expandable Graphite and Ammonium Polyphosphate on Combustion Behavior and Physicomechanical Properties of Rigid Polyurethane Foam
- Preparation, Foaming and Characterization of Poly(l-lactic acid))/Poly(d-lactic acid)-Grafted Graphite Oxide Blends
- A Simple Method of Fabricating Graphene-Polymer Conductive Films
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts