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Interface booster type non-nozzle electrofluid mechanics method and use thereof

A nozzle-less, power-assisted technology, which is applied to chemical instruments and methods, methods for granulating raw materials, devices for coating liquids on surfaces, etc., can solve problems such as small power-assisted effects

Inactive Publication Date: 2009-07-01
张爱华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are very few electrohydrodynamic methods without nozzles at present, and the only one is to use the vertical magnetic field to act on the sharp needle-like protrusions perpendicular to the surface formed by the disturbance effect of the free surface of the magnetic fluid, and combine it with the electrohydrodynamic method. And form a new nozzleless electrohydrodynamic method, but because of the small boosting effect of this method, people only obtain a small amount of ultrafine fibers through this method

Method used

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  • Interface booster type non-nozzle electrofluid mechanics method and use thereof
  • Interface booster type non-nozzle electrofluid mechanics method and use thereof
  • Interface booster type non-nozzle electrofluid mechanics method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The electrohydrodynamic method of the centrifugal force electrohydrodynamic method of spraying the processed material without nozzles such as figure 1 shown. The processed material 3, that is, 22% polystyrene ethyl acetate solution with an average molecular weight of 15.8k Dalton, is sprayed onto the roller 4 through the processed material shower assembly 3b, that is, a row of shower pipes. When the roller rotates at 1000 When rotating at a speed of 1 / min, the sprayed processed material 3c is subjected to centrifugal force by the sharp protrusion 4a on the edge of the roller. The roller is connected to the positive pole of the 30,000-volt positive high-voltage power supply 1 as the working electrode 1b, and the counter electrode is combined with the collecting device 1a, that is, the collecting plate. When a high-voltage electric field is applied and the roller rotates, the material 3 to be processed is simultaneously subjected to centrifugal force and electrostatic fo...

Embodiment 2

[0069] The roller impact electrohydrodynamic method of the material to be processed without nozzle is as follows: figure 2 Department shown. Fluidized processed materials 3a-a are 12% (mass fraction) polylactic acid acetone solution with a weight average molecular weight of about 150,000 and 3a-b are silver-loaded zeolites with a concentration of 20% W / V and a particle size of 100 nanometers 10% polyvinyl alcohol aqueous solution with an average molecular weight of 80,000 is located in the container 3 below the roller, and when the roller 4 rotates at a speed of 1000 rpm, the material to be processed is attached to the roller, and is subjected to centrifugation at the sharp protrusion 4a on the edge of the roller. force. The roller is connected to the negative pole of the 30,000-volt negative high-voltage power supply 1 as the working electrode 1b, and the counter electrode is combined with the collecting device 1a, that is, the collecting plate. When a high-voltage electri...

Embodiment 3

[0071] The system structure of centrifugal force electrohydrodynamic method without nozzle turntable is as follows: image 3 shown. The fluidized processed material 3, that is, the 10% polycaprolactone tetrahydrofuran solution with an average molecular weight of 120,000 and a concentration of 0.2% by weight of the tricalcium phosphate powder material with an average particle diameter of 300 nanometers is guided to the turntable 4 When the turntable rotates at a speed of 1000 rpm, the material to be processed follows the guide groove 4a on the turntable to the sharp protrusion 4b on the edge of the turntable to obtain centrifugal force. Connect the turntable to the negative pole of the 30,000-volt negative high-voltage power supply 1 as the working electrode 1b, and the counter electrode is combined with the collecting device 1a, that is, the collecting plate. When a high-voltage electric field is applied and the turntable rotates, the material 3 to be processed is simultaneou...

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Abstract

The invention relates to an interface assistant electrofluid mechanic method without a nozzle and application thereof. A static electricity removal acting force and an acting force which corresponds to the moving direction of an electric charge fluid namely the direction of the acting force is the same as a jet current direction or with component of the same direction except a sharp needle-shaped promoting effect vertical to the surface layer formed by an optional vertical magnetic field to the free surface disturbance effect of a magnetic fluid are added to a mechanical interface of the electric fluid without the nozzle namely an electric charge processed material original jet current interface, so as to help the electric charge fluid break the surface tension of the mechanical interface of the electric fluid and the interaction force in the fluid and process the processed material. The method is suitable to be used as a preparation method for a functional superfine material or a coating method for the material. The prepared superfine material is applied in grains with solid, hollow or core shell structures, fibers, films, cloth pieces or block structures, and the material can be processed in a large scale with low cost.

Description

technical field [0001] The invention relates to a new type of electrohydrodynamics method, especially the combination of the assisting effect at the initial jet interface of the processed material and the no-nozzle and electrohydrodynamics method, which can perform electrohydrodynamics on materials at low cost and on a large scale processing. The method is suitable for use as a material with separation, protection, antibacterial, deodorization, catalysis, sensing, decoration, structural support, biocompatibility, storage, controllable release, electrical conductivity, repair, medical treatment, health care, smart response, fragrance, adhesive function A method for preparing ultrafine materials with one or more than one function or a method for coating materials. The prepared ultrafine materials are applied in the form of particles, fibers, films, cloth or block structures. Background technique [0002] The electrohydrodynamic method refers to the use of electrostatic force...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B17/04B05B5/00B01J2/00
CPCD01D5/0069B05D1/02
Inventor 张爱华张继中
Owner 张爱华
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