聚乙烯针织物的热湿舒适性能

Thermal and moisture comfort performance of polyethylene knitted fabric

为研究织物结构参数对聚乙烯针织物热湿舒适性能的影响,选取3种规格的聚乙烯长丝织成双罗纹针织物,并选用涤纶、凉感涤纶长丝制备相同结构双罗纹织物作为对比试样,研究构成织物的原料种类、未充满系数、捻度对织物孔隙率、透气性、导热及导湿性能的影响。结果表明:在织物结构相同的情况下,构成织物的原料、未充满系数与织物透气、导湿、导热等热湿舒适性能显著相关;纱线捻度与织物的导热及导湿性能显著相关;与涤纶、凉感涤纶织物相比,聚乙烯长丝表面存在沟壑,结晶度、取向度较高,其织物具有优良的透气、导湿和导热性能,是制备凉爽舒适功能纺织品良好原材料。

In order to study the influence of structure parameters of polyethylene knitted fabric on thermal and moisture comfort performance,three specifications of polyethylene filaments were selected to prepare double rib knitted fabrics.As comparative samples,polyester and cool polyester filaments were selected as well to prepare fabrics with the same structure.The effect of the type of raw material,the under-fill coefficient and the twist of the filaments on the porosity,air permeability,thermal conductivity and moisture permeability were investigated.It was found that when the fabric structure was the same,the raw material and under-fill coefficient were closely related to the air permeability,moisture permeability,and thermal conductivity of polyethylene fabric.Yarn twist was closely related to the thermal conductivity and moisture conductivity.Compared with polyester and cool polyester,polyethylene fiber was preferred for preparing cool functional textiles because of its better air permeability,moisture permeability and thermal conductivity resulting from the grooves on the surface,higher crystallization and orientation of the filament.