生物基聚酰胺56长丝及面料性能研究

Study on bio-based polyamide 56 filament and its fabric properties

为更好地了解生物基聚酰胺56长丝的可编织性及其针织面料的服用性能,文章首先通过扫描电镜实验,观察了长丝的纵向和截面微观形态;然后参考各实验标准对长丝的强伸性与织物的顶破性、耐磨性、悬垂性、透湿性和透气性等性能进行测试。结果表明:生物基PA56长丝具有较高的强度和良好的伸长性能,初始模量较低,可编织性优良;生物基PA56长丝针织物具有一定的顶破强力,顶破延伸性优良,织物的耐磨转数也优于其对比样;生物基PA56长丝针织物动静态的悬垂性一般,面料的悬垂度和美感系数相对较低;生物基PA56长丝针织物的透气性和透湿性优良,面料的透气率和透湿量达到了针织吸湿牛仔布的行业标准;最后采用模糊综合评价法得出PA56长丝针织物具有良好的综合服用性能。

To better investigate the knitting property of bio-based polyamide 56 （ PA56 ） filament and the wearability of its knitted fabrics, the longitudinal and cross-sectional morphology of the filament was observed through scanning electron microscope at first. Then the strength and elongation properties, bursting property, abrasion property, draping property, moisture penetrability and air permeability of the filament and its fabrics were tested by referring to various experiment standards. The resuhs showed that the bio-based PA56 filament was featured with high strength, good elongation, low initial modulus and excellent knitting performance. The knitted fabric made from bio-based PA56 filament presented certain bursting strength, excellent bursting extension and abrasion resistance, compared with the contrast samples. However, the fabric had low values of static drapability and aesthetic coefficient. The air permeability and moisture penetrability of knitted fabric made from bio-based PA56 filament were excellent. Its data of air permeability and moisture penetrability reached the industrial standards for knitted absorbent jeans. At last, the fuzzy comprehensive evaluation method was employed, and the results indicated that knitted fabrics made from bio- based PA56 filament exhibited good comprehensive wearability.