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Electrostatic spinning device and method for mass nanometer/micrometer fibers

A micro-fiber, electrospinning technology, applied in fiber processing, textiles and papermaking, filament/thread forming, etc., can solve problems such as low production efficiency, inability to achieve large-scale production, etc., to improve production efficiency and promote production efficiency , the effect of reducing costs

Inactive Publication Date: 2013-09-11
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, these technologies still use capillary nozzles to inject charged jets, which leads to the fact that the production efficiency of these disclosed electrospinning technologies is still low during specific implementation, and large-scale production cannot be realized.

Method used

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  • Electrostatic spinning device and method for mass nanometer/micrometer fibers
  • Electrostatic spinning device and method for mass nanometer/micrometer fibers
  • Electrostatic spinning device and method for mass nanometer/micrometer fibers

Examples

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no. 1 example

[0046] figure 1 It is a schematic structural diagram of the nano / micro electrospinning device in the first embodiment of the present invention;

[0047] figure 2 It is a partial sectional view of the arrangement structure of the air nozzles in the nano / micro electrospinning device according to the first embodiment of the present invention;

[0048] image 3 It is a top view of the arrangement structure of the air nozzles in the nano / micro electrospinning device in the mode of the first embodiment of the present invention.

[0049] The embodiment of the present invention discloses a large-volume electrospinning device for nano / micro fibers, which includes:

[0050] a reservoir having an upper opening for containing polymer fluid;

[0051] A bubble generating device and a high-voltage electrostatic generator coupled to the polymer fluid in the liquid storage tank, the bubble generating device acts on the polymer fluid in the liquid storage tank, so that the liquid surface o...

no. 1 example approach

[0086] see figure 1 , figure 1 For the attached figure 1 It is a schematic structural diagram of the nano / micro electrospinning device in the first embodiment of the present invention; figure 1 A large amount of electrospinning device for nano / micro fibers shown, including:

[0087] A liquid storage tank 1 with an upper opening is used to accommodate a polymer fluid 6, and the polymer fluid 6 can be a solution or a melt;

[0088] A bubble generating device coupled with the polymer fluid 6 in the liquid reservoir 1 and a high-voltage electrostatic generator 2, wherein the bubble generating device includes an air pump 3 and an air guide tube 5 connected to the air pump 3, and the air guide tube There are 27 air nozzles 4 on the

[0089] see figure 2 and image 3 , figure 2 It is a partial cross-sectional view of the arrangement structure of the air nozzles in the nano / micro electrospinning device according to the first embodiment of the present invention, image 3 It is ...

no. 2 example approach

[0105] You can also refer to the first embodiment figure 1 , figure 2 and image 3 As shown in the nano / micro electrospinning device, the difference between the nano / micro electrospinning device of the second embodiment and the first embodiment is that the air duct is provided with 49 air nozzles, and the The 49 air nozzles are arranged in a matrix with 7 rows and 7 columns; the rest of the structure and connection relationship of the second embodiment are the same as the first embodiment.

[0106] The nano / micro electrospinning method of the second embodiment is different from the first embodiment only in that: the distance between the negative electrode collecting device and the polymer fluid surface is 50 cm, and the air flow output by the air pump The flow rate is 50m / s, and the output voltage of the high-voltage electrostatic generator is adjusted to 30KV; the rest of the steps are the same as those in the first embodiment.

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Abstract

The invention relates to an electrostatic spinning device and method for mass nanometer / micrometer fibers. The electrostatic spinning device is provided with a liquid storage tank with an opening in the top, a bubble generator, a high-voltage electrostatic generator and a negative electrode collecting device, wherein the bubble generator and the high-voltage electrostatic generator are in coupling connection with polymer fluid in the liquid storage tank, and the negative electrode collecting device is located above the opening of the liquid storage tank. The bubble generator comprises an air pump and an air guide pipe connected with the air pump, a plurality of airflow nozzles are arranged on the air guide pipe, and each airflow nozzle is located in the bottom inside the liquid storage tank or in the polymer fluid in the middle. According to the electrostatic spinning device and method for the mass nanometer / micrometer fibers, a large number of protrusions can be obtained through an air pump jet stream mode, then a large number of Taylor cones are obtained, and finally the mass nanometer / micrometer fibers are obtained. The electrostatic spinning device and method for the mass nanometer / micrometer fibers greatly improves production efficiency of nanometer / micrometer fiber electrostatic spinning, and enables the purpose of mass production or industrialization of the nanometer / micrometer fiber electrostatic spinning to be achieved.

Description

technical field [0001] The invention belongs to the field of preparation of nano / micro fiber materials, and in particular relates to an electrostatic spinning device and method of a large amount of nano / micro fiber. Background technique [0002] The principle technologies for preparing polymer nano / micro fibers include wire drawing, template synthesis, phase separation, self-assembly and electrospinning. Due to the existence of the first four technologies in terms of technology, such as narrow range of processing materials, too complicated process, and production cycle Due to the disadvantages such as long and short, at present, only electrospinning is the only process technology that is expected to become a mass production of polymer nano / micro fibers. There are still many technical problems in the process of industrialization of electrospinning technology, and these technical problems have become the focus of research in this field. [0003] The background technology rela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00
Inventor 何吉欢孔海燕陈柔羲
Owner SUZHOU UNIV
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