静电纺工艺对PA6/MWNTs纳米纤维纱结构与性能的影响

 以PA6、多壁碳纳米管（MWNTs）为原料，利用自制的静电纺丝装置，探索了碳纳米管增强PA6纳米纤维纱的连续静电纺丝。研究了纺丝电压、纺丝高度、电场强度等参数对PA6/MWNTs纳米纤维纱的结构与性能的影响。结果表明：随着电压的增大，纤维和纱线的直径、纤维结晶度、断裂强力增加，纤维间黏连减少；随着纺丝高度的增加，纤维的定向排列程度、纤维结晶度提高，纱线断裂强度和初始模量增加；电场强度一定时，随着电压和纺丝高度的增加，纤维的平行排列程度提高，纱线的断裂强力、断裂伸长率、初始模量和断裂强度都增大。

Effect of electrospinning process on structure and property of electrospun PA6/MWNTs yarn

In this paper,muhiwalled carbon nanotubes(MWNTs)were used to reinforce electrospun PA6 yam.The effects of spinning voltage,vertical distance,electric field intensity and other electrospinning parameters were investigated.The results indicated that the increase of spinning voltage not only increased the diameters of yams and fibers,crystal linity degree,and fracture strength but also decreased the adherence between fibers.As the vertical distance was enlarged,the fiber orientation in yarn,crystal linity degree,fracture strength and initial modulus of yams were improved.Under a certain fixed electric field intensity,the fiber orientation in yarn,fracture strength,elongation at break,initial modulus are improved by enlarging voltage and vertical distance.