木棉系列絮料的保暖性

木棉是一种天然纤维素纤维,中空度85%以上,非常适合制作保暖材料,但是由于传统木棉絮料的强力低,持久回弹性差,使其用量越来越小,所开发的木棉絮料制作新技术克服了上述缺陷。为进一步探明木棉絮料的综合性能,比较研究了木棉絮料和其他现有絮料的静态热阻和对流散热量,发现木棉絮料的保暖性仅次于羽绒,明显优于四孔、七孔涤纶棉絮料和喷胶棉,与化纤絮料相比木棉纤维将絮料中的空隙分割的很小,使得絮料的对流散热量大幅度降低,而且木棉絮料的传导热阻也明显高于现有化纤絮料。

Warmth retention property of kapok range of wadding

Kapok is a kind of natural fiber with void content more than 85%,very suitable for thermal insulation material.However,because of its′ low tensile strength and compressional resiliency,the traditional kapok wadding is losing its market share.The newly developed kapok wadding by unique technique has overcome the above shortcomings.In order to gain further understanding of the comprehensive properties of the kapok wadding,a comparative study of static thermal resistance and convection heat transfer of kapok wadding and other fibers wadding is conducted,and it is found that in terms of warmth retention property,kapok is only second to the feather and obviously superior to 4-or 7-hollow polyester fiber wadding and spray-bonded nonwoven fabric.When compared with manufactured fibers wadding,kapok wadding has compact and tiny voids,making it have lower convection heat transfer and higher thermal transmittance resistance.