Needle-free electrostatic spinning equipment

An electrospinning, needle-free technology, applied in textiles and papermaking, filament/thread forming, fiber processing, etc., can solve the problems of adverse effects of stable nanofiber quality, electrostatic repulsion interference, rapid solvent volatilization, etc. Avoid the viscosity change of the material liquid, solve the effect of loading and unloading and cleaning, and inhibit the volatilization of the solvent

Active Publication Date: 2015-12-09
烟台森森环保科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the way of multi-needles, when the infusion volume of each needle is unevenly distributed and the infusion volume of some needles is greater than the amount required for spinning, the spinning material liquid at the end of the nozzle will form droplets and drip down. The silk liquid is delivered to each nozzle with a constant pressure or flow rate, and an electronically controlled multi-pump and multi-nozzle electrospinning machine has been developed. This equipment uses multiple micro-injectors to precisely control the infusion volume of each nozzle, but this The operability of the industrialization of the method is poor and the cost is high
Therefore, the method of multi-nozzle can improve the spraying efficiency to a certain extent, but it cannot avoid the electrostatic repulsion interference between the nozzles and the problems of needle blocking
Moreover, whether it is a single-needle or multi-needle mode, if the top-down spraying method is used, random dripping is unavoidable
In recent years, in order to improve efficiency, roller needleless or other rotary electrospinning methods have been produced, but the open trough during the rotation causes the solvent to evaporate quickly, so the viscosity of the material liquid during the spinning process Variations adversely affect the stability of the spinning state and the quality of the nanofibers, or production is interrupted due to discontinuous liquid supply

Method used

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  • Needle-free electrostatic spinning equipment
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  • Needle-free electrostatic spinning equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Image 6 As shown, a needle-free electrospinning device includes a spinning box 100, a feeding system 200, a receiving counter electrode 300, a high-voltage power supply 400 and a driving system 500, wherein: the spinning box 100 is detachable, Including a spinning nozzle 110, a drive shaft 120, a storage tank 130, a return plate 140, a constant temperature tank A150, a sealing cover 160 and an electrode terminal 180; the feeding system 200 is connected to the spinning box 100; the The receiving counter electrode 300 is located above the spinning cartridge 100 and grounded; the positive electrode of the high-voltage power supply 400 is connected to the lower end of the electrode terminal 180, and its negative electrode is grounded; the driving system 500 is arranged on the At one end of the transmission shaft 120, the driving system 500 is composed of a motor driver and a motor connected to each other...

Embodiment 2

[0046] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Image 6 As shown, a needle-free electrospinning device includes a spinning box 100, a feeding system 200, a receiving counter electrode 300, a high-voltage power supply 400 and a driving system 500, wherein: the spinning box 100 is detachable, Including a spinning nozzle 110, a drive shaft 120, a storage tank 130, a return plate 140, a constant temperature tank A150, a sealing cover 160 and an electrode terminal 180; the feeding system 200 is connected to the spinning box 100; the The receiving counter electrode 300 is located above the spinning cartridge 100 and grounded; the positive electrode of the high-voltage power supply 400 is connected to the lower end of the electrode terminal 180, and its negative electrode is grounded; the driving system 500 is arranged on the At one end of the transmission shaft 120, the driving system 500 is composed of a motor driver and a motor connected to each other...

Embodiment 3

[0055] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Image 6As shown, a needle-free electrospinning device includes a spinning box 100, a feeding system 200, a receiving counter electrode 300, a high-voltage power supply 400 and a driving system 500, wherein: the spinning box 100 is detachable, Including a spinning nozzle 110, a drive shaft 120, a storage tank 130, a return plate 140, a constant temperature tank A150, a sealing cover 160 and an electrode terminal 180; the feeding system 200 is connected to the spinning box 100; the The receiving counter electrode 300 is located above the spinning cartridge 100 and grounded; the positive electrode of the high-voltage power supply 400 is connected to the lower end of the electrode terminal 180, and its negative electrode is grounded; the driving system 500 is arranged on the At one end of the transmission shaft 120, the driving system 500 is composed of a motor driver and a motor connected to each other....

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Abstract

The invention relates to needle-free electrostatic spinning equipment which is characterized by comprising a spinning box, a feeding system, a reception counter electrode, a high-voltage power source and a drive system. The feeding system is connected with the spinning box. The reception counter electrode is located above the spinning box and grounded. A positive electrode of the high-voltage power source is connected with the spinning box, and a negative electrode of the high-voltage power source is grounded. The drive system is arranged at one end of the spinning box. The equipment solves the problems of needle blocking, electric field repellence among needle heads and low spinning efficiency of a needle type spinning nozzle, the situation that due to the fact that environmental temperature changes, viscosity of feed liquid changes is avoided by means of a storage tank and a constant-temperature tank of the storage tank, the spinning nozzle is simple in structure, independent, detachable and easy to disassemble, assemble and clean, the problem of inconvenience of assembling, disassembling and cleaning a large number of spinning needle heads is solved, maintenance and repair cost is reduced, spinning efficiency is improved, large-scale production is facilitated, and the requirement of practical application can be well met.

Description

technical field [0001] The invention belongs to the technical field of electrostatic spinning devices, and in particular relates to a needle-free electrostatic spinning device. Background technique [0002] With the expansion of the application field of nanofibers, electrospinning technology has attracted much attention due to the convenience of preparing micro-nanofibers. In addition, there is a wide range of polymer systems suitable for electrospinning. At present, the electrospinning method has been recognized as one of the most simple and effective means of preparing micro-nano fibers. However, since Formalas invented the electrospinning technology in 1934, the electrospinning method has not been widely used in the mass production of nanofibers. The main reasons for the popularization and application of electrospinning are firstly that the influencing factors of the electrospinning process are complex; secondly, the large-scale application is limited by some factors, su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00
Inventor 刘千祥邱凯丽王亚利
Owner 烟台森森环保科技有限公司
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