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Device and method for producing polymer nanofibers

A nanofiber and polymer technology, applied in fiber processing, textile and papermaking, filament/thread forming, etc., can solve the problems of uneven spinning density, poor spinning effect, and interference in the spinning process, reducing the Effect of electric field influence, high spinning efficiency, other electric field disturbance reduction effect

Active Publication Date: 2021-07-13
青岛中科凯尔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the driving equipment needs to regularly clean the solidified material of the silk solution, which affects production efficiency and wastes the silk solution
Not only that, the metal equipment will be affected by the high-voltage electric field during operation to generate different small electric fields, which will interfere with the spinning process of the silk solution at both ends of the metal wire, making the spinning effect at the corresponding position poor and the spinning density uneven
In the case that the metal wire itself carries high voltage, driving the metal wire itself is risky, not only because of its slender geometric state, it is prone to tip discharge, which may cause sparks, and then has the risk of fire, and the driving The isolation of the mechanism of the metal wire from the wire with high voltage also poses a technical problem
[0012] In the prior art, there is still an unsolved problem about how to improve the uniformity of the textile density through the movement of the wire, the concentration of the mucus, and the parameter matching of the high voltage.

Method used

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  • Device and method for producing polymer nanofibers
  • Device and method for producing polymer nanofibers
  • Device and method for producing polymer nanofibers

Examples

Experimental program
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Effect test

Embodiment 1

[0051] Such as Figure 1~5 As shown, a device for producing polymer nanofibers at least includes a liquid tank 2, a receiving device 7, and several first electrodes 3 and several second electrodes 4 forming potential differences.

[0052] The receiving device 7 comprises a substrate and several transport components. Such as figure 1 As shown, the conveying assemblies at both ends of the substrate include a first conveying assembly 61 and a second conveying assembly 62 . For example, both ends of the substrate are controlled by at least two pairs of unpowered rollers and are moved to receive nanofibers sprayed from the second electrode to form a nanofiber layer.

[0053] The moving state of the substrate includes movement-related parameters such as static time, moving speed, and moving time.

[0054] Preferably, several first electrodes 3 are arranged in the electrode chamber 1 . The arrangement of the plurality of first electrodes 3 is not limited, and may be arranged in a...

Embodiment 2

[0095] This embodiment is a further elaboration of Embodiment 1, and the repeated content will not be repeated.

[0096] The present invention also provides a method for producing polymer nanofibers, the method at least comprising:

[0097] The substrate in the receiving device is arranged in the manner of passing through the electric field between several first electrodes 3 and several second electrodes 4, or the substrate in the receiving device is arranged in the electric field, at least one second electrode 4 is connected with The liquid tank 2 dips in the polymer solution in a relatively moving manner and spins to the receiving device 7 based on the action of an electric field to form a nanofiber layer.

[0098] The second electrode 4 dips in the polymer solution in an intermittent energized manner.

[0099] When the second electrode 4 moves to contact with the polymer solution in the liquid tank 2 , the second electrode 4 is powered off, and when the second electrode 4 ...

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Abstract

The invention relates to a device for producing polymeric nanofibers. The device comprises at least one liquid tank (2), a receiving device (7), and a plurality of first electrodes (3) and a plurality of second electrodes (4) forming a potential difference; a substrate in the receiving device passes through the electric field between the first electrodes (3) and the second electrodes (4), or is arranged in the electric field; and the liquid tank (2) reciprocates in a manner of moving relative to the at least one second electrode (4), and in the process that the second electrode (4) is in contact with and / or separated from a polymer solution in the liquid tank (2), the polymer solution dipped by the second electrode (4) is sprayed to the substrate based on the action of the electric field to form a nanofiber layer. The polymer solution can be conveniently smeared on the metal surface by utilizing liquid surface tension, the solution smeared on the metal surface is more uniform, any part of the metal dipped with the polymer solution can be spun, and the spinning efficiency is high.

Description

technical field [0001] The invention relates to the technical field of nanofiber material preparation, in particular to a device and method for producing polymer nanofibers. Background technique [0002] Electrospinning is the process of spinning with a polymer solution under high-voltage static electricity. Electrospinning can prepare fibers with a diameter of tens to hundreds of nanometers. The product has a high porosity and a large specific surface area, a variety of components, and a uniform diameter distribution. It has great potential in the fields of biomedicine, environmental engineering, and textiles. High application value. [0003] The principle of electrospinning is: the polymer solution or melt is charged with thousands to tens of thousands of volts of high-voltage static electricity, and the charged polymer droplets are accelerated at the apex of the Taylor cone of the capillary under the action of the electric field force. When the electric field force is l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00
CPCD01D5/0061D01D5/0069
Inventor 于淼
Owner 青岛中科凯尔科技有限公司
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