用恒温板测试织物透湿性能  

Study on Moisture Permeability of Fabric Using Hot Plate

作　　者：张辉[1] 

机构地区：[1]西安工程大学纺织与材料学院,西安710048

出　　处：《丝绸》2006年第5期37-39,43,共4页Journal of Silk

摘　　要：采用恒温板测试法,测量了33℃和50℃条件下,不同紧度、不同材料、纳米粉体改性织物前后以及层压和聚四氟乙烯膜4组试样的透湿性能。结果表明,织物透湿量与测试时间呈高度线性相关;使用透湿速率指标可以区别织物的透湿性能。对于特殊规格织物,透湿速率随着容重的增加而增大,当容重为一定值时,透湿速率达到最大,之后,又会随着容重的增加而减小。材料对透湿性的影响比较复杂,测试温度不同,透湿速率就有所不同,温度越高,透湿速率相差越小。纳米粉体特性和处理试剂对透湿性能有影响。层压复合织物两面的透湿速率不同。当聚四氟乙烯膜厚度等参数相同时,透湿速率随单位面积中开孔面积的增加而增大。The moisture permeable abilities were tested by hot plate method at the temperature of 33 and 50 ℃, for a variety of fabrics with different density, materials, laminated fabric and PTFE membrane and so on. The results show that there are highly correlate relations between the amount of dissipated moisture and testing time, and it can be expressed as moisture permeable rate （MPR）. MPR increases, and then decreases with the fabric weight per unit area when reaching the maximum value at a certain point. The material has great influence on the moisture permeability, and MPR is different at various temperatures. The higher the temperature, the smaller the influence on the moisture permeablility. The nano-powder and chemical reagent have also influence on the moisture permeablility. MPR is different on two sides of laminated fabric, and it increases with the opening area in unit area when the thickness of PTFE membrane is constant.

关 键 词：透湿性能 紧度 层压织物 聚四氟乙烯膜 

分 类 号：TS101.923[轻工技术与工程—纺织工程]