The current research presents the optimization of the parameters involved in the production of polyacrylonitrile (PAN) nanofibers via the needleless electrospinning system. The experiments were designed using the Taguchi method to investigate the morphological, physical, and mechanical properties of the nanofibers. The single-wall carbon nanotubes (CNT) were used in order to improve the mechanical properties of the electrospun nanofibers. The diameter of the PAN nanofibers in the needleless system was less than 300 nm, which was smaller than that in the conventional system. The results showed that the concentration had the greatest impact on the fiber diameter than other parameters in both PAN and PAN/CNT nanofibers. The specific stress of the nanofibers produced by the needleless electrospinning system was lower than that created by the conventional electrospinning system. Addition of The CNT caused to improve the specific stress of the PAN/CNT nanofibers compared with the PAN nanofibers. However, excessive amounts of CNT had a negative effect on the elongation and modulus because of the aggregation of CNT inside the nanofibers. The X-ray diffraction analysis was used to study the crystalline behavior of the PAN nanofibers produced via the needleless electrospinning system. The results showed that the PAN nanofibers had amorphous structure compared with the conventional PAN nanofibers.

当前的研究提出了通过无针电纺系统生产聚丙烯腈（PAN）纳米纤维所涉及的参数的优化。使用Taguchi方法设计实验，以研究纳米纤维的形态，物理和机械性能。为了改善电纺纳米纤维的机械性能，使用了单壁碳纳米管（CNT）。在无针系统中，PAN纳米纤维的直径小于300 nm，小于常规系统中的直径。结果表明，在PAN和PAN / CNT纳米纤维中，浓度对纤维直径的影响最大。由无针电纺系统产生的纳米纤维的比应力低于由常规电纺系统产生的纳米纤维的比应力。与PAN纳米纤维相比，CNT的添加引起了PAN / CNT纳米纤维的比应力的改善。然而，由于CNT在纳米纤维内部的聚集，过量的CNT对伸长率和模量具有负面影响。X射线衍射分析用于研究通过无针电纺系统生产的PAN纳米纤维的结晶行为。结果表明，PAN纳米纤维与常规PAN纳米纤维相比具有非晶态结构。由于CNT在纳米纤维内部的聚集，过量的CNT对伸长率和模量具有负面影响。X射线衍射分析用于研究通过无针电纺系统生产的PAN纳米纤维的结晶行为。结果表明，PAN纳米纤维与常规PAN纳米纤维相比具有非晶态结构。由于CNT在纳米纤维内部的聚集，过量的CNT对伸长率和模量具有负面影响。X射线衍射分析用于研究通过无针电纺系统生产的PAN纳米纤维的结晶行为。结果表明，PAN纳米纤维与常规PAN纳米纤维相比具有非晶态结构。