İnce Yardimci Atike, TanoĞlu Metin, Yilmaz Selahattin, Selamet Yusuf
Department of Material Science and Engineering, İzmir Institute of Technology, İzmir Turkey.
Technology Transfer Office, Uşak University, Uşak Turkey.
Turk J Chem. 2020 Aug 18;44(4):1002-1015. doi: 10.3906/kim-1911-49. eCollection 2020.
In this study, carbon nanotubes (CNTs) added polyacrylonitrile/polypyrrole (PAN/PPy) electrospun nanofibers were produced. Average diameters of the nanofibers were measured as 268 and 153 nm for 10 and 25 wt% of PPy contents, respectively. A relatively higher strain to failure values (23.3%) were observed for the low PPy content. When as-grown CNTs (1 and 4 wt%) were added into the PAN/PPy blends, disordered nanofibers were observed to form within the microstructure. To improve the interfacial properties of CNTs/PAN/PPy composites, CNTs were functionalized with HSO/HNO/HCl solution. The functionalized CNTs were well dispersed within the nanofibers and aligned along the direction of nanofibers. Therefore, beads formation on nanofibers decreased. The impedance of the nanofibers was found to decrease with the PPy content and CNT addition. These nanofibers had a great potential to be used as an electrochemical actuator or a tissue engineering scaffold.
在本研究中，制备了添加碳纳米管（CNT）的聚丙烯腈/聚吡咯（PAN/PPy）电纺纳米纤维。对于PPy含量为10 wt%和25 wt%的纳米纤维，其平均直径分别测量为268 nm和153 nm。观察到低PPy含量时具有相对较高的断裂应变值（23.3%）。当将生长态的CNT（1 wt%和4 wt%）添加到PAN/PPy共混物中时，观察到在微观结构内形成了无序纳米纤维。为了改善CNT/PAN/PPy复合材料的界面性能，用HSO/HNO/HCl溶液对CNT进行了功能化处理。功能化的CNT在纳米纤维内良好分散，并沿纳米纤维方向排列。因此，纳米纤维上的珠状物形成减少。发现纳米纤维的阻抗随PPy含量和CNT添加量的增加而降低。这些纳米纤维具有用作电化学致动器或组织工程支架的巨大潜力。
