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Interfacial boost type spinning-nozzle free electrofluid dynamic method, and its application

A non-spinneret, power-assisted technology, which is applied in the field of new electrohydrodynamics, can solve the problems of no spinneret and achieve the effect of promoting application

Inactive Publication Date: 2006-11-15
张爱华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] On the other hand, the current electrohydrodynamic method is difficult to process the processed material by pure electrostatic force and internal quasi-equilibrium thrust, so there is no electrohydrodynamic method without a spinneret

Method used

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  • Interfacial boost type spinning-nozzle free electrofluid dynamic method, and its application
  • Interfacial boost type spinning-nozzle free electrofluid dynamic method, and its application
  • Interfacial boost type spinning-nozzle free electrofluid dynamic method, and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The electrohydrodynamic method of the centrifugal force type electrohydrodynamic method of spraying the material to be processed without a spinneret such as figure 1 shown. The processed material is sprayed onto the roller 4 through the processed material shower assembly 3b, and when the roller rotates, the showered processed material 3c is subjected to centrifugal force through the sharp protrusion 4a on the edge of the roller. The roller was connected to a high-voltage power source 1 as the working electrode 1b, and the counter electrode was combined with the collection device 1a. 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 force to form an electric jet 2, thereby processing the material to be processed.

Embodiment 2

[0045] The system structure of spinnerless rotary disc centrifugal electrohydrodynamic method is as follows: figure 2 shown. The material to be processed 3 is guided to the turntable 4, and when the turntable rotates, the material to be processed goes along 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 a high-voltage power source 1 as the working electrode 1b, and the counter electrode is combined with the collection device 1a. When a high-voltage electric field is applied and the turntable rotates, the material 3 to be processed is simultaneously subjected to centrifugal force and electrostatic force to form an electric jet 2, thereby processing the material to be processed.

Embodiment 3

[0047] The structure of the electrohydrodynamic method system with built-in mechanical oscillation without spinneret is as follows: image 3 shown. Place the mechanical oscillating assembly 4 in the processed material 3. When the mechanical oscillating power supply 5 is turned on, the mechanical oscillating assembly vibrates and causes the processed material to oscillate. The oscillating force can cause part of the solution interface to form a sharp jet state, so it can As a boost to electrohydrodynamic methods. The high-voltage power supply 1 is connected to the working electrode 1b and placed under the liquid surface 3a of the processed material, and the counter electrode is combined with the collecting device 1a. When the mechanical oscillating power supply and the high-voltage power supply are turned on at the same time, the electrostatic force and the oscillating force act together to form an electric jet 2 and then process the processed material.

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Abstract

An interface boosted electrically charged hydromechanical method without nozzle for electrostatic atomizing, electrostatic spinning, or electrostatic spraying features that the proper acting force other than the electrostatic force is applied to the electrically charged fluid to make it break through the surface tension and internal action force of said fluid, so using it to machine or process the target material.

Description

technical field [0001] The invention relates to a new type of electrohydrodynamic method, especially the combination of the effect of assisting the initial jet boundary of the processed material and the non-spinneret with the electrohydrodynamic method, which can process the material on a large scale at low cost processing. The method is suitable for electrostatic spraying, electrostatic spinning and electrostatic spraying. Background technique [0002] The electrohydrodynamic method refers to that the processed material uses electrostatic force and balanced internal driving force to break through the surface tension and internal force of the processed fluid state material under the charged condition to form a tiny fluid state in the form of a jet. The material form is dispersed in other fluid media that cannot be completely mixed and solidified to form particles and fibers, including electrostatic spraying, electrostatic spraying and electrospinning. through a spinneret. ...

Claims

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Application Information

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IPC IPC(8): B05B5/00D01D5/00
CPCD01D5/0069B05D1/02
Inventor 张爱华张继中
Owner 张爱华
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