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首页> 外文期刊>The Journal of the Textile Institute >Thermal behavior of bi-layered needle-punched nonwovens produced from 100% raw kapok fibers
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Thermal behavior of bi-layered needle-punched nonwovens produced from 100% raw kapok fibers

机译：由100％未加工的Kapok纤维生产的双层针刺非织造织物的热行为

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摘要

In the production of functional nonwovens with sustainable fibers, kapok, with unique qualities, becomes an excellent candidate for the production of thermal insulation textiles. However, the development of 100% raw kapok fiber structures is a challenge, since their mechanical resistance and inter-fiber cohesion is very low. In this work, the thermal behavior of new needle punched bi-layered nonwovens produced from 100% raw kapok fibers is studied. These innovative structures were obtained through dry heat-pressing of needle punched nonwovens, developed according to a novel method designed. The results obtained have shown that the heat-pressing conditions (temperature and number of cycles) affected the thermal properties of the nonwovens and the thermal performance profile of an insulating arrangement. The bi-layered nonwoven structures reinforced in one heat-pressing cycle at 100 degrees C showed the higher thermal resistance and the lower thermal conductivity and heat flux and led to the highest delay (decrement delay) of the heat transfer from the outside to the inside of the insulating assembly and vice-versa, acting as an effective thermal insulator.
机译：在具有可持续纤维的功能性非织造织物的生产中，Kapok具有独特的品质，成为热保温纺织品的优秀候选者。然而，100％原发性番茄湾纤维结构的发展是一种挑战，因为它们的机械电阻和纤维间的内聚力非常低。在这项工作中，研究了从100％生kapok纤维产生的新针刺双层非织造织物的热行为。这些创新结构是通过对针刺非织造布的干热压获得的，根据设计的新方法开发。所得到的结果表明，热压条件（温度和循环次数）影响了非织造布的热特性和绝缘装置的热性能曲线。在100摄氏度下在一个加热循环中加强的双层非织造结构显示出较高的热阻和较低的导热性和热通量，并导致从外部到内部的热传递的最高延迟（减小延迟）绝缘组件和反之亦然，作为有效的隔热绝缘体。

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