References
- High Speed Fiber Spinning A. Ziabicki;H. Kawai(Ed.)
- Seni Gakkaishi v.51 no.9 T. Kikutani;S. Arikawa;A. Takaku;N. Okui
- Seni Gakkaishi v.37 no.4 J. Shimizu;N. Okui;T. Kikutani
- Thermal Characterization of Polymeric Materials E. A. Turi
Textile Science and Engineering (한국섬유공학회지)
- Volume 33 Issue 4
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- Pages.360-364
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- 1996
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- 1225-1089(pISSN)
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- 2288-6419(eISSN)
Fiber Structure Formation in High-Speed Melt Spinning of Sheath-Core Type Bicomponent Fibers(I)- Effectiveness of HDPE/PET Bicomponent System -
복합섬유의 고속방사에 있어서 섬유구조형성(I)-HDPE/PET 복합의 효과-
Abstract
High-speed melt spinning of sheath-core type bicomponent fibers was performed and the change of fiber structure with increasing take-up velocity was investigated. Three kinds of polymers, poly(ethylene terephthalate)(PET), high-density polyethylene(MFR=11)(HDPE11) and high-density polyethylene(MFR=28)(HDPE28), were selected and two sets sheath/core combinations, HDPE(11)/PET and HDPE(28)/PET(i.e. sheath/core), were studied. The structure of each component in high-speed spun bicomponent fibers was analyzed through the birefringence, wide-angle X-ray diffraction measurements and DSC thermogram measurements. The development of molecular orientation and the initiating of the orientation-induced crystallization of PET in HDPE/PET bicomponent fibers occurred at lower take-up velocities regardless of the type of HDPE as compared to those in the single component spinning. The fiber structure formation of HDPE component in HDPE/PET bicomponent fibers was suppressed as compared to that in the single component spinning. The molecular orientation of HDPE in HDPE/PET bicomponent fibers was increased initially and then decreased with take-up velocities.
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