Abstract
High tensile strength ultra high molecular weight polyethylene (UHMWPE) fibers were prepared via the dry spinning method. Raw material was UHMWPE resin with 6 million viscosity-average molecular weight (Mv). Changes of morphology, mechanical properties, thermal properties and crystallization process of the fibers in the ultra-hot drawing process were studied by scanning electron microscopy (SEM), tensile tester, differential scanning calorimetry (DSC), and wide-angle X-ray diffraction (WAXD). Results show that there was a maximum value of fracture force at a draw ratio of 40 and excessive draw ratio destroyed crystal structures in fibers and led to a decrease in the fracture force value. A shoulder peak appeared in DSC curves of ultra-drawing samples and its peak value maintained at 154°C in different samples. In addition, three peaks can be observed in all WAXD patterns of drawing samples. The mechanism of microstructural changes during the hot drawing process was elucidated.
Funding: Science and Technonlogy Commission of shanghai Municipality, Grant Number: 16160731300.
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Articles in the same Issue
- Frontmatter
- Material properties
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- Morphological characterization, thermal, and mechanical properties of compatibilized high density polyethylene/polystyrene/organobentonite ternary nanocomposites
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- Simultaneous toughening and reinforcing of cyanate ester/benzoxazine resins with improved mechanical and thermal properties by using hyperbranched polyesters
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- Poly (vinyl alcohol)/nano-diamond composite films and hydrogels prepared by gamma ray
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- Study on structures and properties of ultra-hot drawing UHMWPE fibers fabricated via dry spinning method
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- Electric field-induced alignment of MWCNTs during the processing of PP/MWCNT composites: effects on electrical, dielectric, and rheological properties
- A molecular modeling study for miscibility of polyimide/polythene mixing systems with/without compatibilizer
- Analysis and quantitative estimation of phenolic antioxidants in polypropylene packaging for fat products
- Effects of ultrasonic injection molding conditions on the plate processing characteristics of PMMA
Articles in the same Issue
- Frontmatter
- Material properties
- Structure mediation and ductility enhancement of poly(l-lactide) by random copolymer poly(d-lactide-co-ε-caprolactone)
- Morphological characterization, thermal, and mechanical properties of compatibilized high density polyethylene/polystyrene/organobentonite ternary nanocomposites
- Preparation and assembly
- Simultaneous toughening and reinforcing of cyanate ester/benzoxazine resins with improved mechanical and thermal properties by using hyperbranched polyesters
- Surface modification of Sb-SnO2/potassium titanate composite and their performance for acrylic coatings
- Poly (vinyl alcohol)/nano-diamond composite films and hydrogels prepared by gamma ray
- Engineering and processing
- Study on structures and properties of ultra-hot drawing UHMWPE fibers fabricated via dry spinning method
- Separation of CO2/CH4 and O2/N2 by polysulfone hollow fiber membranes: effects of membrane support properties and surface coating materials
- Electric field-induced alignment of MWCNTs during the processing of PP/MWCNT composites: effects on electrical, dielectric, and rheological properties
- A molecular modeling study for miscibility of polyimide/polythene mixing systems with/without compatibilizer
- Analysis and quantitative estimation of phenolic antioxidants in polypropylene packaging for fat products
- Effects of ultrasonic injection molding conditions on the plate processing characteristics of PMMA