Fabrication and Properties of Self-crimp Side-by-Side Bicomponent Filaments Composed of Polyethylene Terephthalates with Different Intrinsic Viscosity

IF 0.7 4区 工程技术 Q3 MATERIALS SCIENCE, TEXTILES Fibres & Textiles in Eastern Europe Pub Date : 2022-03-01 DOI:10.2478/ftee-2022-0009
Guo-Lei Xiang, Hongjing Hua, Qingwen Gao, Jingwen Guo, Xuzhen Zhang, Xiuhua Wang
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引用次数: 1

Abstract

Abstract Self-crimp side-by-side bicomponent filaments (SBSBFs) were prepared via melt spinning using two kinds of polyethylene terephthalate (PET) with great disparity of intrinsic viscosity. The influence of the volume ratio on the surface morphology, crystallinity, crimping properties, mechanical properties and shrinkage properties of the bicomponent filaments was investigated using wide-angle X-ray diffraction, a differential scanning calorimetry (DSC), scanning electron microscope, etc. As the proportion of the low-viscosity component increases, the shrinkage in boiling water or hot air, as well as the shrinkage force and the sonic orientation factor of the bicomponent filaments decrease, and the DSC heating curves change from double peaks to a single peak. These phenomena should be ascribed to the high orientation and low crystallinity of the high-viscosity PET component and low orientation and high crystallinity of the low-viscosity PET component. Moreover, the crimp property of the bicomponent filament with a volume ratio of 50:50 is superior to those with other volume ratios.
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不同特性粘度聚对苯二甲酸乙二醇酯自卷曲并排双组分长丝的制备与性能
摘要以两种特性粘度差异较大的聚对苯二甲酸乙二醇酯(PET)为原料,通过熔融纺丝制备了自卷曲并排双组分长丝(SBSBF)。使用广角X射线衍射、差示扫描量热法(DSC)、扫描电子显微镜等研究了体积比对双组分长丝的表面形态、结晶度、卷曲性能、机械性能和收缩性能的影响。随着低粘度组分比例的增加,双组分长丝在沸水或热空气中的收缩率、收缩力和声波定向因子降低,DSC加热曲线由双峰变为单峰。这些现象应归因于高粘度PET组分的高取向和低结晶度以及低粘度PET组份的低取向和高结晶度。此外,体积比为50:50的双组分长丝的卷曲性能优于其他体积比的双组份长丝。
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来源期刊
Fibres & Textiles in Eastern Europe
Fibres & Textiles in Eastern Europe 工程技术-材料科学:纺织
CiteScore
1.60
自引率
11.10%
发文量
12
审稿时长
13.5 months
期刊介绍: FIBRES & TEXTILES in Eastern Europe is a peer reviewed bimonthly scientific journal devoted to current problems of fibre, textile and fibrous products’ science as well as general economic problems of textile industry worldwide. The content of the journal is available online as free open access. FIBRES & TEXTILES in Eastern Europe constitutes a forum for the exchange of information and the establishment of mutual contact for cooperation between scientific centres, as well as between science and industry.
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