单纤维及其集合体的导热性能研究现状

摘要

The thermal conductivity of single fiber and fiber assembly is the basis of studying the heat transfer performance of textiles. It has very important significance for developing the textile which has the remarkable warm feeling effect or the special heat transfer performance. In this article, the thermal conductivity of existing single fiber and fiber assembly, and relevant researches are expounded from different aspects such as thermal properties, fiber thermal conducting mechanism, thermal model of fiber assembly, fiber thermal performance analysis and modification, and test method for thermal conductivity. The research shows that high thermal conductivity of a new type of high performance fiber makes the anisotropy of the axial and radial thermal conductivity of the fiber very significant. At present, the study on intrinsic thermal conductivity, the thermal conductivity of single fiber and fiber assembly along the plane direction should be strengthened.%单纤维及纤维集合体的导热性能是研究纺织品传热性能的基础，对开发具有显著冷暖感效果或特殊传热性能的纺织品有极其重要的意义。从热性能表征、纤维导热机理、集合体导热模型、纤维热性能分析及改性、热导率的测试方法等不同方面，阐述了现有单纤维及纤维集合体的导热性能及相关研究。研究认为，新型高性能纤维的高热导率，使得纤维轴向和径向热导率的各向异性极为显著，目前应加强本征导热纤维、单纤维热导率的研究及纤维集合体沿平面方向的传热性能研究。