Electrospining Machine: Simulation and Design of Multi nozzle electrospinning Device

Overview 

In response to the edge effect of multi nozzle electrospinning, COMSOL simulation was used to optimize the nozzle spacing, achieve uniform distribution of electric field, and significantly improve electrospinning efficiency and fiber performance.

Keywords

multi nozzle electrospinning, electric field distribution optimization, nanofiber preparation, electrospinning efficiency improvement

Method

Using COMSOL Multiphysics software, the influence of electrospinning voltage, transverse and longitudinal spacing between nozzles on the uniformity of electric field intensity distribution in multi nozzle electrospinning was deeply studied, and the optimal spatial position relationship of nozzles to weaken the edge effect of multi nozzle was proposed.

Figure 1. Schematic diagram of Coulomb force acting on the charge at the three nozzles

Figure 2. Distribution of electric field intensity of five nozzles

Research Highlights

1. Increasing the horizontal spacing between nozzles and decreasing the vertical spacing can make the electric field strength of multiple nozzles tend to be consistent, effectively alleviating edge effects.

2.When the horizontal spacing is 5.0cm and the vertical spacing is 0.5cm, the distribution of electric field intensity is the most uniform, which is suitable for multi nozzle structure design.

3.The nine nozzle structure has the advantages of large spinning area, high efficiency, and stable spinning process, providing reference for the research and design of multi nozzle structures in spinning devices.

Figure 3. Multi nozzle electrospinning device diagram

Figure 4. electrospinning patterns of different numbers of nozzles

Conclusion

This article uses COMSOL Multiphysics software to simulate and analyze the electric field strength of multiple nozzles, and conducts experimental verification based on the simulation results, effectively solving the problems of low electrospinning efficiency in single nozzle electrospinning equipment and edge effects in multi nozzle spinning devices.

Paper link: https://kns.cnki.net/kcms2/article/abstract?v=KetWmXlLxlebZj37VdvBvvmcr425ruXv8DssTNAocWFbTaFwOfzmg_J84UGiUTBFuGLabGINNmVI4QLipfxWVR9GqVdRFv3DiFJnAGi2cz9Xis1IbiFcPD6vmjPViWwaZeYuQrK7o9flnE-wuOz011QX_Ojhsn-f&uniplatform=NZKPT