Background: Nanofiber’s productivity plagues nanofibrous membranes’ applications in
many areas. Herein, we present the needle-disk electrospinning to improve throughput. In this method,
multiple high-curvature mentals are used as the spinning electrode.
Methods: Three aspects were investigated: 1) mechanism elucidation of the needle-disk electrospinning;
2) parameter optimization of the needle-disk electrospinning; 3) productivity improvement of the
Results: Results show that high-curvature electrode evokes high electric field intensity, making lower
voltage supply in spinning process. The needle number, needle length and needle curvature synergistically
affect the spinning process and nanofiber morphology. Additionally, higher disk rotation velocity
and higher voltage supply can also result in higher nanofiber’s productivity.
Conclusion: Compared with previous patents related to this topic, the needle-disk electrospinning is
featured with the merits of high throughput, low voltage supply, controllable spinning process and
nanofiber morphology, benefiting the nanofiber practical industrial employment and further applications
of nanofiber-based materials.