Environmentally friendly and highly productive bi-component melt spinning of thermoregulated smart polymer fibres with high latent heat capacity
Environmentally friendly and highly productive bi-component melt spinning of thermoregulated smart polymer fibres with high latent heat capacity
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DOI：
10.3144/expresspolymlett.2018.19
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发表时间：
2018-03-01
影响因子：
3.3
通讯作者：
Vogel, R.
中科院分区：
文献类型：
--
作者：
Cherif, Ch.;Tran, N. H. A.;Vogel, R.
一个稳定的和可重复的工业规模的双组分熔融纺丝工艺结合相变材料（PCM）到纺织纤维已成功地开发和进行使用熔融纺丝机。成功的双组分熔融纺丝工艺的关键因素是使用差示扫描量热法（DSC）、热重分析（TGA）和振荡流变学研究深入了解PCM的热和流变行为。PCM对熔融纺丝过程的温度和停留时间非常敏感。结果表明，相变材料的最佳工艺温度为210 ℃。对熔纺和进一步拉伸的双组分皮芯纤维（bico纤维）的纺织物理性能和形态进行了研究和解释。还通过差示扫描量热法（DSC）测定了双组分纤维中PCM的热容量。整合PCM的熔纺Bico纤维提供高达22 J/g的高潜热，比同样使用熔纺工艺获得的最新纤维高出三倍。因此，它们有可能用作纺织和其他技术应用的智能聚合物纤维。
A stable and reproducible bi-component melt spinning process on an industrial scale incorporating Phase Change Material (PCM) into textile fibres has been successfully developed and carried out using a melt spinning machine. The key factor for a successful bi-component melt spinning process is that a deep insight into the thermal and rheological behaviour of PCM using Difference Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), and an oscillatory rheological investigation. PCM is very sensitive to the temperature and residence time of the melt spinning process. It is found that the optimal process temperature of PCM is 210 degrees C. The textile-physical properties and the morphology of the melt spun and further drawn bi-component core and sheath fibres (bico fibres) were investigated and interpreted. The heat capacities of PCM incorporated in bico fibres were also determined by means of DSC. The melt spun bico fibres integrating PCM provide a high latent heat of up to 22 J/g, which is three times higher than that of state-of-the-art fibres, which were also obtained using the melt spinning process. Therefore, they have the potential to be used as smart polymer fibres for textile and other technical applications.