Nanofiber electrostatic spinning equipment

Abstract

Nanofiber electrostatic spinning equipment comprises a spinning shell, a spinning head, a power supply box, shell bottom feet, a collecting device, a drying device and a conveying roller, wherein thespinning head is arranged at the top end of the spinning shell; the power supply box is arranged on the outer wall of the spinning shell, and the power supply box is electrically connected with the spinning head through a wire; the shell bottom feet are arranged on the bottom surface of the shell; the collecting device is arranged on one side of the bottom end of the spinning shell, and the dryingdevice is arranged on one side of the spinning shell; the conveying roller is arranged at an inlet of a drying box and an outlet of the drying box. According to the equipment, the collecting device and the conveying roller are designed, so that the preparation smoothness and stability of a system are improved; meanwhile, the drying device is designed, so that products have better performance.

Description

technical field [0001] The invention belongs to the field of nanofiber production equipment, in particular to nanofiber electrostatic spinning equipment. Background technique [0002] Nanomaterials refer to materials that have at least one dimension in the three-dimensional space that is in the nanometer size (0.1-100nm) or constituted by them as basic units, which is approximately equivalent to the scale where 10-100 atoms are closely arranged together. In nanomaterials, nanofibers refer to ultrafine fibers with a fiber diameter of less than 1000 nanometers. There are many methods for fabricating nanofibers, such as stretching method, template synthesis, self-assembly, microphase separation, electrospinning, etc. Among them, the electrospinning method is widely used due to its advantages of simple operation, wide application range and relatively high production efficiency. [0003] Electrospinning is a special fiber manufacturing process in which a polymer solution or mel...

AI Technical Summary

Problems solved by technology

There are the following technical defects in this preparation process: (1) The nanofibers made by the electrospinning equipment naturally drop to the collection base by gravity, the collection base is in the shape of a flat disc, and the fibers are piled up on the collection base in a disorderly manner , it is very easy to cause the mixing of the fiber filaments, and the winding fluency of the nanofiber filaments is low

(2) The supporting drying equipment in the electrospinning equipment mostly adopts a single heat conduction form of heat convection or heat radiation to dry the fiber filaments, and the drying uniformity is poor; The internal volume of the drying device is not fully utilized, the drying efficiency is low, and it is not suitable for drying nanofiber tows with small diameters

(4) When conveying the fiber filaments of electrospinning, due to the small diameter of the nanofiber filaments, the conventional rollers cannot fix the nanofiber filaments, and the fiber filaments and the rollers are prone to slip during the transportation process, which affects the roller Fluid transmission

(5) In order to protect the mechanical strength of nanofibers during transportation, and prevent the fibers from being pulled tightly or loosely due to factors such as friction during long-distance transportation, resulting in fiber breakage or mixing, now It is impossible to adjust the tension state of the fiber in some roller structures

Images