The effect of different sheath/core composite ratio and drawing conditions on the structure and properties of poly(ethylene terephthalate)(PET) sheath/poly(propylene)(PP) bicomponent fibers were investigated by measuring WAXD, cross section, DSC, density, shrinkage, tensile test. The results are fol...
The effect of different sheath/core composite ratio and drawing conditions on the structure and properties of poly(ethylene terephthalate)(PET) sheath/poly(propylene)(PP) bicomponent fibers were investigated by measuring WAXD, cross section, DSC, density, shrinkage, tensile test. The results are followed.
in Chapter 1,
The effects of various PET/PP composite ratio(60:40, 70:30, 80:20) of PET/PP bicomponent fibers were examined by wide angle X-ray diffraction, density, DSC, SEM, shrinkage and tensile test to find out changes of the structures and physical properties with PET and PP fiber. In the results of WAXD equatorial profiles, the increase in the PET composite ratio resulted in the formation of (010), (110), (100) reflection of PET fibers. And the increase in the PP composite ratio resulted in the formation of (110), (040) reflection of PP fibers. This result shows that the structure of bicomponent fibers appear towards the higher proportion. Density value of PET/PP bicomponent fibers became higher with increasing PET composite ratio and there mechanical properties became higher. PET/PP bicomponent fiber was found to be serious compared from SEM, and this result influenced structure formation and mechanical properties.
in Chapter 2,
The effects of various drawing conditions(undrawn, 1.30, 1.50, 1.80) of PET/PP bicomponent fibers were examined by wide angle X-ray diffraction, density, DSC, SEM, shrinkage and tensile test to find out changes of the structures and physical properties when DR2 is 1.30, 1,50, 1,80 of draw winder. In the results of WAXD equatoial profiles, the increase in the draw ratio resulted in the reflection peak became sharper at high draw ratio. Endothermic curves of PET/PP bicomponent fibers became sharper with increasing draw ratio. Also, densityvalue of PET/PP bicomponent fibers became higher increasing draw ratio and there mechanical properties became higher.
The effect of different sheath/core composite ratio and drawing conditions on the structure and properties of poly(ethylene terephthalate)(PET) sheath/poly(propylene)(PP) bicomponent fibers were investigated by measuring WAXD, cross section, DSC, density, shrinkage, tensile test. The results are followed.
in Chapter 1,
The effects of various PET/PP composite ratio(60:40, 70:30, 80:20) of PET/PP bicomponent fibers were examined by wide angle X-ray diffraction, density, DSC, SEM, shrinkage and tensile test to find out changes of the structures and physical properties with PET and PP fiber. In the results of WAXD equatorial profiles, the increase in the PET composite ratio resulted in the formation of (010), (110), (100) reflection of PET fibers. And the increase in the PP composite ratio resulted in the formation of (110), (040) reflection of PP fibers. This result shows that the structure of bicomponent fibers appear towards the higher proportion. Density value of PET/PP bicomponent fibers became higher with increasing PET composite ratio and there mechanical properties became higher. PET/PP bicomponent fiber was found to be serious compared from SEM, and this result influenced structure formation and mechanical properties.
in Chapter 2,
The effects of various drawing conditions(undrawn, 1.30, 1.50, 1.80) of PET/PP bicomponent fibers were examined by wide angle X-ray diffraction, density, DSC, SEM, shrinkage and tensile test to find out changes of the structures and physical properties when DR2 is 1.30, 1,50, 1,80 of draw winder. In the results of WAXD equatoial profiles, the increase in the draw ratio resulted in the reflection peak became sharper at high draw ratio. Endothermic curves of PET/PP bicomponent fibers became sharper with increasing draw ratio. Also, densityvalue of PET/PP bicomponent fibers became higher increasing draw ratio and there mechanical properties became higher.
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#PET 복합섬유 PP 구조물성
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