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Multi-row electrostatic spinning spray head

A technology of electrospinning and nozzle, which is applied in the direction of spinneret assemblies, textiles and papermaking, filament/thread forming, etc. It can solve the problems that affect the continuous operation of electrospinning, the difficulty of cleaning capillary, and the blockage of capillary. Difficult to clean, optimized arrangement and structure, and improved efficiency

Inactive Publication Date: 2011-02-09
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inner diameter of the commonly used capillary is generally 0.2-0.7mm, and it is difficult to process such extremely small micropores.
In addition, in the solution electrospinning process, the capillary is often blocked, which seriously affects the continuous operation of electrospinning.
In addition, it is difficult to clean the clogged capillary.

Method used

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  • Multi-row electrostatic spinning spray head
  • Multi-row electrostatic spinning spray head
  • Multi-row electrostatic spinning spray head

Examples

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Embodiment Construction

[0020] In the present invention, a multi-row electrospinning nozzle adopts such as figure 1 with figure 2 The schematic diagram of the device shown mainly includes a heating coil 1 for temperature control, a temperature sensor 4, a connecting piece 2, and a guide core 3 for guiding the flow of materials. The connecting piece 2 and the guide core 3 are connected by an interference fit . The connecting piece 2 is provided with a trapezoidal open flow channel 6 and a protrusion 9 for material drainage, and the protrusion 9 is provided with a spinning tip 8 which facilitates the formation of the jet stream 5 . The diversion core 3 is provided with a balance groove 7 for balancing the materials of each open channel 6, and has a protrusion 9 for drainage and a spinning tip 8 for forming a spinneret.

[0021] image 3 with Figure 4 Shown is a schematic diagram of the structure of the connector 2, Figure 5 with Figure 6 Shown is a schematic structural view of the guide core ...

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PUM

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Abstract

The invention discloses a multi-row electrostatic spinning spray head, which belongs to the field of electrostatic spinning. The spray head comprises a connecting piece, a flow guide core and an independent temperature control device, wherein the connecting piece is connected with the flow guide core in a matching way and provided with a trapezoidal open flow channel and a bump for guiding a material; the bump is provided with a spinning tip for jet flow molding; the flow guide core is provided with a balancing groove for balancing the material in each open flow channel, a flow guide bump and a spinning tip for forming spinning; and when the spinning tip is provided with solution or melt and an electrostatic field is formed, a plurality of rows of jet flow is formed at the spinning tip. The conventional electrostatic spinning changes from a single yarn discharging way to a multi-yarn and multi-row parallel strip form and a spliced open flow channel is adopted, so that the flow guide core can be extracted directly when an experiment ends, the open flow channel is opened truly and the problems of easy blocking and difficult cleaning of a capillary tube are solved.

Description

technical field [0001] The invention relates to an electrostatic spinning nozzle, which belongs to the field of electrostatic spinning. Background technique [0002] With the heating up of nanotechnology, electrospinning method has become one of the current research hotspots because it can prepare nanoscale fibers. The electrospinning method has been recognized as the simplest and most effective method for preparing nanofibers. At present, more than 30 kinds of polymers have successfully prepared ultrafine fibers through this method, and the smallest diameter reaches tens of nanometers. Regarding the research results of electrospinning, the relevant literature has increased exponentially in recent years. Electrospinning has a history of nearly 100 years since its appearance, but this technology has not yet been industrialized. [0003] Capillary is one of the necessary elements for electrospinning. The inner diameter of the commonly used capillary is generally 0.2-0.7mm, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D4/00D01D5/00
Inventor 刘勇郝明凤杨卫民王德禧
Owner BEIJING UNIV OF CHEM TECH
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