Ring-type electrostatic spinning device

Abstract

The invention relates to a ring-type electrostatic spinning device.The ring-type electrostatic spinning device comprises a high-voltage generating system, a micro-control system, a fiber generating system and a receiving system.The fiber generating system comprises a liquid tank with an opening in the upper face, at least one driving shaft, a plurality of driven shafts, a cover plate and at least one spinning ring.Each spinning ring is embedded into grooves of at least one corresponding driving wheel and a plurality of corresponding driven wheels.One ends of the driving shafts are arranged on the side wall of the liquid tank through bearings, and the other ends of the driving shafts penetrate through the opposite side wall of the liquid tank to extend out of the liquid tank and be connected with a driving motor; the opening in the upper face of the liquid tank is covered with the cover plate.According to the ring-type electrostatic spinning device, as the certain-distance parallel-multi-ring electrostatic spinning mode is adopted, the problem that the sealing effect of a feeding system is not good enough can be solved, excessive volatilization of solvents in the spinning process is avoided while the device has high spinning efficiency, the long-time stability of the viscosity of liquid in the spinning process is guaranteed, and powerful guarantees are provided for long-time industrial application of the device.

Description

technical field [0001] The invention belongs to the technical field of spinning equipment, and in particular relates to a ring-type electrostatic spinning device. Background technique [0002] At present, many countries and regions in the world are engaged in the research of nanofibers produced by electrospinning. The fibers produced by electrospinning are much thinner than those produced by traditional composite spinning, and the diameter is generally between tens of nanometers and 1 μm. , the smallest diameter can reach 1nm. With the continuous development of nanotechnology in recent years, electrospinning has become an important method for preparing nanofibers and has attracted much attention. Electrospinning is widely used, from synthetic polymers to natural polymers, all soluble and fusible polymers can be processed by electrospinning, such as polyvinyl alcohol, polyacrylonitrile, cellulose, collagen, DNA complexes, etc., and functional materials such as antibiotics a...

AI Technical Summary

Problems solved by technology

However, whether it is a spring-like spiral or a spiral blade is a continuous rotating device, the inherent characteristics of this device lead to no suitable method to seal the system. For the organic solvent system, the open material liquid system in the spinning process It will cause excessive volatilization of the solvent, so it is difficult to ensure the consistency of the viscosity of the material liquid, and affect the stability of the spinning process

[0006] Although the existing needle-free electrospinning equipment overcomes the problems inherent in multi-needle electrospinning, such as complex device structure, easy blockage of needles, difficult control of flow uniformity of each needle, and complicated feeding system, it also brings Here comes the problem that the liquid supply system is difficult to seal

The open liquid supply system of the needle-free electrospinning equipment leads to the rapid and excessive volatilization of the solvent in the feed liquid during the spinning process, which promotes the gradual increase of the viscosity of the feed liquid system over time, which seriously affects the electrospinning process. Stability and product consistency, which also lead to the inability of such needle-free electrospinning equipment to perform continuous spinning for a long time, which limits the industrial application of such equipment

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