Electrostatic spinning multi-strand wire spray head

A technology of electrospinning and nozzles, which is applied in the directions of spinneret assemblies, textiles and papermaking, etc., can solve the problems of spinning machines not yet available, in the laboratory stage, and difficulty in processing fine holes, and is conducive to combined installation. , The effect of reducing the difficulty of processing and reducing the difficulty of processing

Inactive Publication Date: 2011-03-16
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing technologies are all in the laboratory stage, and the mass-produced spinning machines have not yet come out.
Most of the existing spinning equipment uses a single capillary, and most of

Method used

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  • Electrostatic spinning multi-strand wire spray head
  • Electrostatic spinning multi-strand wire spray head
  • Electrostatic spinning multi-strand wire spray head

Examples

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Example Embodiment

[0016] An electrostatic spinning multi-filament nozzle of the present invention, such as Figures 1 to 4 The schematic diagram shown mainly includes a fitting 1, a flow guide 2 connected to it through a thread 2-2, and a heat control device 3 of the entire nozzle, wherein the upper end face 2-1 of the inner flow guide 2 is in the thread 2. -2 Under the action of the connection, it is tightly sealed with the corresponding surface of the fitting 1, and the mating cylindrical surface 2-3 of the flow guide 2 and the corresponding surface of the fitting 1 are tightly fitted to prevent fluid backflow. During spinning, the fluid is introduced from the fluid inlet 1-1, then the fluid enters the inner flow channel 2-11 of the flow guide 2, and then enters a plurality of shunt holes 2-4, and the fluid is guided into the buffer surrounding the waist of the flow guide. On the groove 2-10, the distribution is more uniform, and the uniform fluid flows down along the wedge-shaped gap of the ...

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Abstract

The invention discloses an electrostatic spinning multi-strand wire spray head, and belongs to the electrostatic spinning field. The spray head comprises a jointing piece, a guide piece and a heat control device, wherein the jointing piece is connected with the guide piece through screw thread; the heat control device is fixed on the outer surface of the jointing piece; the matched columnar surface of the guide piece is in tight fit joint with the corresponding surface of the jointing piece; a plurality of shunting holes are uniformly distributed at the lower end vertical to the columnar surface of the guide piece; a buffer groove is formed at the outlet of the shunting holes; a plurality of shunting grooves are annularly and uniformly distributed on the shunting conical surface of the lower end of the guide piece, and the shunting conical surface is parallel to the corresponding conical surface on the jointing piece; and the lower end of the guide piece is provided with an inner hexagonal hole and a shallow concave surface. The spray head used for electro-spinning of melt or solution can realize uniform preparation of multi-strand wires, and the combination of multiple spray heads with the structures can be introduced into a large-batch electrostatic spinning device; and the spray head greatly improves the production efficiency of electrostatic spinning, and reduces the processing cost of multiple spray heads.

Description

technical field [0001] The invention relates to an electrostatic spinning device, which belongs to the field of electrostatic spinning. Background technique [0002] The electrospinning process is to apply a high-voltage electrostatic field between the nozzle and the receiving device, so that the polarized fluid overcomes the surface tension under the action of the electric field force, forms a jet, and obtains ultra-fine fibers on the receiving plate. [0003] With the heating up of nanotechnology, the preparation of nanofibers by electrospinning has become one of the current research hotspots. At present, fibers with a minimum diameter of tens of nanometers can be obtained. Therefore, considering how to increase production, it is inevitable to put electrospun nanofiber related products on the market. However, existing technologies are all in the laboratory stage, and mass-produced spinning machines have not yet come out. Most of the existing spinning equipment uses a si...

Claims

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Application Information

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IPC IPC(8): D01D4/02
Inventor 杨卫民李好义王建强刘勇何雪涛丁玉梅
Owner BEIJING UNIV OF CHEM TECH
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