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Radial electrospinning nozzle based on differential rhombus blades

A radial and blade technology, applied in textile and papermaking, fiber processing, filament/thread forming, etc., can solve the problems of high energy consumption, difficult fiber quality control, needle blockage, etc. Spinning energy consumption, avoiding clogging problems, stabilizing droplet effects

Inactive Publication Date: 2018-12-18
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a radial electrospinning nozzle based on differential diamond-shaped blades to solve the problem of needle blockage, inconvenient cleaning and needle-free electrospinning technology of traditional capillary needle-type electrospinning devices. Problems such as high energy consumption and difficulty in controlling fiber quality due to open liquid supply

Method used

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  • Radial electrospinning nozzle based on differential rhombus blades
  • Radial electrospinning nozzle based on differential rhombus blades
  • Radial electrospinning nozzle based on differential rhombus blades

Examples

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Embodiment 1

[0013] Embodiment one: figure 1 As shown, it is an embodiment of the radial electrospinning nozzle based on differential diamond-shaped blades of the present invention—it has 2 radial blades, the number of differential diamond-shaped blades on the top is 9, the expanded shape of the radial blades is rectangular, and the outward opening angle is The electrospinning nozzle at 0° is specifically: the radial spinneret 12 is located on the upper part of the cylindrical tube 11 (spinning upwards), the inner diameter of the radial spinneret is equal to the inner diameter of the cylindrical tube and the connection is tight and smooth , can realize the unobstructed transportation of spinning fluid; described radial spinneret 12 is made up of 2 radial blades that are evenly distributed along the circumference, and the expanded shape of radial blades is a rectangle, and there is a gap of 0.2 mm between the two radial blades. Nine differential diamond-shaped leaves are equally spaced on t...

Embodiment 2

[0014] Embodiment two: figure 2 and image 3As shown, it is an embodiment of the radial electrospinning nozzle based on differential rhombic blades of the present invention—it has 4 radial blades, the number of differential rhombus blades at the top is 5, the radial blades are trapezoidal in shape, and the outward opening angle is 30° The electrospinning nozzle, specifically: the radial spinneret 12 is located at the bottom of the cylindrical tube 11 (spinning downward), the inner diameter of the radial spinneret is completely consistent with the inner diameter of the cylindrical tube and the connection is tight and smooth, The unobstructed transportation of spinning fluid can be realized; the radial spinneret 12 is composed of 4 radial blades evenly distributed along the circumference, the shape of the radial blades is trapezoidal, and 5 differential rhombuses are equally spaced on the top of each radial blade Blades; the thickness of the radial blade and the top differenti...

Embodiment 3

[0015] Embodiment three: Figure 4 As shown, it is an embodiment of the radial electrospinning nozzle based on differential rhombic blades of the present invention—it has 4 radial blades, the number of differential rhombus blades at the top is 3, the radial blades are polygonal in shape, and the outward opening angle is 30° The electrospinning nozzle, specifically: the radial spinneret 12 is located at the bottom of the cylindrical tube 11 (spinning downward), the inner diameter of the radial spinneret is completely consistent with the inner diameter of the cylindrical tube and the connection is tight and smooth, The unobstructed transportation of spinning fluid can be realized; the radial spinneret 12 is composed of 4 radial blades evenly distributed along the circumference, the radial blades are polygonal in shape, and 3 differential rhombuses are equally spaced on the top of each radial blade Blades; the thickness of the radial blade and the top differential diamond blade a...

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Abstract

The invention relates to a radial electrospinning nozzle based on differential rhombus blades, and belongs to the technical field of nanofiber preparation. The radial electrospinning nozzle based on differential rhombus blades is composed of a cylinder tube and a radial spinneret with differential rhombus blades, wherein the radial spinneret is composed of a plurality of radial blades which have the same structure and are uniformly distributed along the circumference; a plurality of differential rhombus blades are arranged at the top of each radial blade at equal interval; the radial spinneretis arranged at the upper part or the lower part of the cylinder tube; and the radial spinneret and the cylinder tube have the same inner diameter at a joint and are closely and smoothly connected, thus being able to realize unobstructed transport of spinning fluids. The radial electrospinning nozzle based on differential rhombus blades has a large inner diameter, thus being beneficial to avoidance of the clogging problem, and can electrospin high concentration spinning solution. Besides, the radial spinneret has the function of stabilizing droplets, and can produce multiple spinning jets, thus being large in the spinning yield. Moreover, the tubular structure of the radial electrospinning nozzle based on differential rhombus blades can achieve closed and controllable liquid supply, and the solvent is not volatile, and the differential rhombus blades have tips to produce higher field strength, thus being able to reduce energy consumption.

Description

technical field [0001] The invention relates to an electrospinning nozzle, in particular to a radial electrospinning nozzle based on differential rhombic blades, and belongs to the technical field of nanofiber preparation. Background technique [0002] Electrospinning is a method of preparing nanofibers by stretching a polymer solution or melt by an electric field force generated by a high-voltage DC power supply. It is currently one of the most effective techniques for preparing nanofibers. The solution electrospinning device can use a single metal capillary needle as a spinning head to realize spinning, such as the technologies disclosed in patents 200420020596.3 and 200410025622.6. However, due to the low yield of traditional single metal capillary electrospinning, it cannot meet the needs of industrialization and has become a bottleneck problem restricting its development. Therefore, Theron et al. arranged multiple metal capillary needles in a linear or rectangular arran...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D5/00
CPCD01D5/0069
Inventor 刘延波刘健田文军
Owner WUHAN TEXTILE UNIV
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