Formation and properties of polyester/copolyester conjugate fibers prepared by ultra‐high‐speed melt spinning technique

Ho, Yo-Seung; Kim, Hee Young; Jin, Fan‐Long; Park, Soo‐Jin

doi:10.1002/pen.22057

Polymer Engineering & Sci

2011

DOI: 10.1002/pen.22057

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Formation and properties of polyester/copolyester conjugate fibers prepared by ultra‐high‐speed melt spinning technique

Yo-Seung Ho¹,

Hee Young Kim²,

Fan‐Long Jin³

et al.

Abstract: In this study, three types of conjugate fibers, sea‐islands type, orange split type, and side by side type, were prepared by using an on‐line steaming process through a high‐speed spinning technique in order to improve the processibility, efficiency, and properties of the fibers. It was found that the weight reduction ratios of orange split and sea‐island polyester/copolyester fibers were higher than that of polyester fibers. The SEM results indicate that the split time was shortened by using the ultra‐high‐sp… Show more

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2024

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Cited by 3 publications

References 14 publications

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An effective strategy for the continuous fabrication of melt‐spun sea‐island bicomponent fibers with structural regulation via stretching

Yu,

Chen,

Zhang

et al. 2024

Polymer Engineering & Sci

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Controlling viscosity in bicomponent melt spinning is crucial for ensuring spinnability and interfacial stability. However, the significant difference in viscosity between PPS and CoPET poses a challenge to establishing the CoPET‐PPS sea‐island melt spinning system. Herein, the viscosity of PPS is regulated by blending high melt index PPS with spinning grade PPS, resulting in a viscosity ratio of CoPET to PPS over 0.5, thereby demonstrating the good spinnability of the CoPET‐PPS spinning system. The mathematical models for velocity, shear rate, and pressure distribution of CoPET‐PPS melts within the sea‐island spinning assembly are developed using Polyflow software, providing theoretical analysis for sea‐island melt spinning. CoPET‐PPS sea‐island bicomponent fibers are successfully fabricated via the facile bicomponent melt spinning technique, guided by the results of capillary rheology and simulation analysis. In addition, the condensed state structure and mechanical properties of CoPET‐PPS sea‐island fibers are significantly enhanced with increasing draw ratios. This straightforward strategy, combined with experimental and numerical simulations, is anticipated to effectively improve the spinnability of multicomponent melt spinning, especially in cases of significant viscosity differences between polymers.Highlights The CoPET‐PPS spinning system was constructed by regulating PPS viscosity. The distribution of the CoPET‐PPS melt in the spinneret holes was simulated. CoPET‐PPS fibers were fabricated based on rheology and simulation results. The mechanical properties of CoPET‐PPS fibers improve with higher draw ratios.

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An effective strategy for the continuous fabrication of melt‐spun sea‐island bicomponent fibers with structural regulation via stretching

Yu,

Chen,

Zhang

et al. 2024

Polymer Engineering & Sci

View full text Add to dashboard Cite

show abstract

Thermal and curl properties of PET/PP blend fibres compatibilized with EAG ternary copolymer

Park

Kim

et al. 2018

Bull Mater Sci

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Blends of polyethylene terephthalate (PET)/polypropylene (PP) and the ternary copolymer ethylene-acrylic ester-glycidyl methacrylate (EAG) as the compatibilizer were prepared using a twin-screw extruder. The thermal properties, densities and morphologies of the blends were determined using various techniques. Next, PET/PP blend fibres were prepared using a melt-spinning system, and their curl properties were investigated. Scanning electron microscopy (SEM) results showed that the number of PP particles in the PET matrix and size of the PP phase decreased as the EAG content increased. The melting temperature (T m) and cooling crystallization (T cc) values of PP in the PET/PP blends decreased significantly after the addition of 1% EAG. The density of the PET/PP blend fibres decreased significantly with increase in the EAG and PP contents. After curl formation, the curl length of PP in the fibres was shorter than that of PET.

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紡糸・フィルム

Takasaki¹

2013

Seikei kako

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Formation and properties of polyester/copolyester conjugate fibers prepared by ultra‐high‐speed melt spinning technique

Cited by 3 publications

References 14 publications

An effective strategy for the continuous fabrication of melt‐spun sea‐island bicomponent fibers with structural regulation via stretching

An effective strategy for the continuous fabrication of melt‐spun sea‐island bicomponent fibers with structural regulation via stretching

Thermal and curl properties of PET/PP blend fibres compatibilized with EAG ternary copolymer

紡糸・フィルム

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