通过纳米纤维的直径分布图发现，同轴纳米纤维的直径明显大于共混组，原因可

According to the diameter distribution diagram of the nanofibers, it is found that the diameter of the coaxial nanofibers is significantly larger than that of the blended group. The reason may be that when preparing the coaxial nanofibers, more liquid is injected per unit time, which makes it form a larger liquid at the nozzle. Taylor cone, resulting in an increase in fiber diameter. Furthermore, as the proportion of GO increased, the diameter of the nanofibers decreased, which could be attributed to the enhancement of the conductivity of the solution by the addition of GO, which made the solution have stronger tension under the electric field and formed thinner fibers38.

Through the diameter distribution map of the nanofibers, it was found that the diameter of the coaxial nanofibers was significantly larger than that of the blend group. The reason may be that more liquid was injected per unit time during the preparation of the coaxial nanofibers, resulting in the formation of larger Taylor cones at the nozzle, leading to an increase in fiber diameter. In addition, as the proportion of GO increases, the diameter of the nanofibers decreases, which can be attributed to the addition of GO enhancing the conductivity of the solution, resulting in stronger tension in the electric field and the formation of finer fibers 38.

Through the diameter distribution diagram of nanofibers, it is found that the diameter of coaxial nanofibers is obviously larger than that of blending group, which may be because more liquid is injected per unit time when preparing coaxial nanofibers, which makes them form a larger Taylor cone at the nozzle, which leads to the increase of fiber diameter. In addition, with the increase of the proportion of GO, the diameter of nanofibers decreases, which can be attributed to the fact that the addition of GO enhances the conductivity of the solution, which makes the solution have stronger tension under the electric field and forms finer fibers 38.