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首页> 外文期刊>Polymer: The International Journal for the Science and Technology of Polymers >Structure development and properties of high-speed melt spun poly(butylene terephthalate)/poly(butylene adipate-co-terephthalate) bicomponent fibers
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Structure development and properties of high-speed melt spun poly(butylene terephthalate)/poly(butylene adipate-co-terephthalate) bicomponent fibers

机译：高速熔纺聚对苯二甲酸丁二醇酯/聚己二酸丁二醇酯-对苯二甲酸对苯二甲酸丁二酯双组分纤维的结构发展和性能

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摘要

Ultra-hi h-speed bicomponent spinning of poly(butylene terephthalate) (PBT) as sheath and biodegradable poly(butylene adipate-co- terephthalate) (PBAT) as core was accomplished with the take-up velocity up to 10 km/min. The structure development of the individual component and the properties of PBT/PBAT fibers were investigated through the measurements on differential scanning calorimetry, wide-angle X-ray diffraction, birefringence and tensile test. Due to the mutual interaction between two polymer-melts along the spinline, the processability of both components in PBT/PBAT bicomponent spinning was improved compared with those of corresponding single component spinnings. Furthermore, in PBT/PBAT fibers, the structure development of PBT component was found to be greatly enhanced, which led to the improvement in its thermal and mechanical properties; whereas the structure development of PBAT component was significantly suppressed, in which nearly non-oriented structure was observed in both crystalline and amorphous phases. (c) 2005 Elsevier Ltd. All rights reserved.
机译：以高达10 km / min的卷取速度完成了聚对苯二甲酸丁二酯（PBT）作为皮套和可生物降解聚己二酸丁二酯-对苯二甲酸乙二酯（PBAT）作为皮芯的超高速双组分纺丝。通过差示扫描量热法，广角X射线衍射，双折射和拉伸试验的测量研究了单个组分的结构发展和PBT / PBAT纤维的性能。由于沿纺丝线的两个聚合物熔体之间的相互作用，因此与相应的单组分纺丝相比，PBT / PBAT双组分纺丝中两种组分的加工性能均得到改善。此外，发现在PBT / PBAT纤维中，PBT组分的结构发展得到极大增强，从而导致其热性能和机械性能的改善。而PBAT组分的结构发展被显着抑制，其中在结晶相和非晶相中都观察到几乎无取向的结构。 （c）2005 Elsevier Ltd.保留所有权利。

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