醋酸纤维素纳米级纤维复合纱制备及性能研究

Preparation and Property Study of Cellulose Acetate Nano-scale Fiber Composite Yarn

探讨一种醋酸纤维素纳米级纤维复合纱的基本性能。选用涤纶长丝和醋酸纤维素片作为原料,利用静电纺丝方法制备了不同浓度的醋酸纤维素纳米级纤维,并将其复合在涤纶长丝表面制成复合纱,测试了该复合纱的外观形貌、强伸性能、芯吸性能和回潮率。结果表明,取向排列的醋酸纤维素纳米级纤维完全覆盖在涤纶长丝表面,所得复合纱的强伸性能、芯吸高度和回潮率都高于涤纶长丝,但随着溶液浓度的增加,由于纳米级纤维直径增加,复合纱的芯吸高度和回潮率略有降低。认为醋酸纤维素纳米级纤维复合纱既具有涤纶长丝较高的强伸性能,又具有纳米级纤维较大的比表面积和较高的孔隙率,可用于开发功能性纳米级纤维纺织品。

Basic properties of cellulose acetate nano-scale fiber composite yarn were discussed. Polyester fila- ment and cellulose acetate were chose as raw materials to prepare the different concentration of cellulose acetate nano-scale fiber through electro-spinning. Composite yarn was prepared when cellulose acetate nano-scale fiber were sprayed on the surface of polyester filament. The appearance, tensile property, wicking property and moisture regain of composite yarn were tested. The results show that polyester filament was completely covered by orient- ated cellulose acetate nano-scale fiber. The tensile property,wicking height and moisture regain of prepared com- posite yarn are better than that of polyester filament. With increase of solution concentration, wicking height and moisture regain of composite yarn are decreased slightly because the diameter of nano-scale fiber is increased. It is considered that tensile property of cellulose acetate nano-scale fiber composite yarn is better than polyester fila- ment. The composite yarn possesses higher surface area and porosity as same as nano-scale fiber that can be used to develop the functional nano-scale fiber textiles.