A centrifugal electrospinning device

Abstract

The present application discloses a centrifugal electrospinning device, comprising: a high-speed airflow generating device; a high-speed airflow housing connected to the high-speed airflow generating device by an air intake pipe for sending airflow; The air flow shell forms a liquid storage chamber with a concentric structure; the high-voltage electrostatic device is used to form an electric field between the liquid storage chamber and the collection device; the centrifugal drive device is used to make the spinning solution in the liquid storage chamber perform high-speed centrifugal rotation for spinning The silk liquid is thrown out of the liquid storage chamber through the liquid outlet device; the liquid outlet device is installed at one end of the liquid storage chamber. In this application, the high-speed airflow is provided with a separate airflow channel, and the spinning solution is only assisted by the high-speed airflow when the liquid is discharged, which avoids the interference of the airflow on the spinning solution, prevents the spinning solution in the storage cavity from solidifying, and ensures The uniformity of spinning, and, after the spinning liquid is thrown out of the liquid storage chamber after high-speed centrifugal rotation, the high-speed airflow is used to assist blowing and thinning, and the diameter of the prepared fiber is greatly reduced.

Description

technical field [0001] The present application relates to the technical field of spinning, in particular to a centrifugal electrostatic spinning device. Background technique [0002] At present, the technology of spinning and processing nanofibers is mainly used in the field of scientific research. One of the main reasons hindering its industrialization is the mass production method of nanofibers based on this technology. At present, the electrospinning production methods are mainly divided into two types: multi-needle spinning and needle-free spinning. Among the needle-free spinning technologies, there are magnetic jetting, porous tube spinning, disc spinning, and bubble spinning. etc. Although the production efficiency of the needleless spinning technology has been greatly improved compared with the multi-needle spinning technology, it is difficult to produce high-quality nanofiber membranes due to the uncontrollable direction and amount of the needleless spinning jet. . ...

AI Technical Summary

Problems solved by technology

However, the design of the fan blade device and the liquid storage device in the same cavity results in a complex structure in the liquid storage cavity, and the spinning liquid will be disturbed by the fan blade when rotating at high speed in the liquid storage cavity, which will affect the spinning effect

At the same time, the direction of the spinning jet and the amount of spinning are not easy to control by adopting the porous needle-free spinning method, and under the interference of the high-speed air flow, the spinning solution inside the liquid storage chamber may solidify, affecting the spinning effect and making it difficult to achieve high efficiency. The production of small-diameter nanofibrous membranes

Images