TY - JOUR
TI - Novel free surface electrospinning for preparing nanofibers and its mechanism study
AU - Yin Jing
AU - Xu Lan
JN - Thermal Science
PY - 2022
VL - 26
IS - 3
SP - 2527
EP - 2534
PT - Article
AB - In order to meet the increasing demand for nanofibers and overcome the  disadvantages of traditional electrospinning technology, it is necessary to  research an electrospinning device that can produce nanofibers efficiently.  In this paper, a free surface electrospinning device was improved, and a  spherical section free surface electrospinning device was developed to  prepare high-quality polyacrylo-nitrile nanofibers in batches. Meanwhile,  MAXWELL 3-D software was used to simulate the electric field distribution of  the spherical section free surface electro-spinning with solution reservoirs  of different spherical radii. The influence of the spherical radius on the  spinning effect was analyzed to study the spinning mechanism. The results  showed that when the applied voltage was 40 kV, the electric field  distribution of the spherical section free surface electrospinning with a  larger spherical radius was more uniform, the nanofiber diameter was  larger, the nanofiber diameter distribution was more uniform, and the yield  of nanofibers was higher. When the spherical radius was 75 mm, the quality  of nanofibers was better, and the yield could reach the maximum value of  14.35 g per hour, due to its higher average electric field intensity and  uniform electric field distribution.