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A multi-component perforated nozzle with uniform electric field

A multi-component, hole-sleeved technology, applied in textiles and papermaking, filament/thread forming, fiber processing, etc., can solve problems such as uneven electric field distribution, achieve the effect of increasing limitations, eliminating concentration effects, and good quality

Active Publication Date: 2021-08-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of uneven electric field distribution in the electrospinning process existing in the prior art, and to provide a multi-component perforated nozzle with uniform electric field

Method used

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  • A multi-component perforated nozzle with uniform electric field
  • A multi-component perforated nozzle with uniform electric field
  • A multi-component perforated nozzle with uniform electric field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Three-component hole casing nozzle, the longitudinal section of which is as follows figure 1 As shown, it includes a main plate 5 and a metal electrode 4. The main plate is a polytetrafluoroethylene circular plate with a diameter of 34-36 mm and a thickness of 1-2 mm; the main plate is insulated and has a contact angle with water >90°. A cylindrical hole with a diameter of 3-4mm is provided. The edge of the main plate extends along the thickness direction to form a cylinder k with a height of 22-23mm. The part of the inner wall of the cylinder k close to the main plate extends along a direction parallel to the main plate. A ring r with a height of 1-2mm and an inner diameter of 30-32mm; the metal electrode is a cylinder with a diameter of 30-32mm and a height of 21-22mm. The metal electrode is set in the cylinder k and supported by the ring r. The metal electrode, The main body plate and the ring r enclose the solution chamber j6; the metal electrodes are inserted with ...

Embodiment 2

[0067] Three-component hole casing nozzle, the longitudinal section of which is as follows Image 6 As shown, it includes a main plate 5 and a metal electrode 4. The main plate is a polytetrafluoroethylene circular plate with a diameter of 34-36 mm and a thickness of 1-2 mm; the main plate is insulated and has a contact angle with water >90°. A cylindrical hole with a diameter of 1-2 mm is provided. The edge of the main plate extends along the thickness direction to form a cylinder k with a height of 22-23 mm. The part of the inner wall of the cylinder k close to the main plate extends along a direction parallel to the main plate. A ring r with a height of 1-2mm and an inner diameter of 30-32mm; the metal electrode is a cylinder with a diameter of 30-32mm and a height of 21-22mm. The metal electrode is set in the cylinder k and supported by the ring r. The metal electrode, The main body plate and the ring r encircle the solution chamber j6; a catheter I 2 is inserted on the me...

Embodiment 3

[0072] Four-component hole casing nozzle, its longitudinal section is as follows Figure 10 As shown, it includes a main board 5, an auxiliary board 11 and a metal electrode 4;

[0073] The main plate is a polytetrafluoroethylene circular plate with a diameter of 40-42mm and a thickness of 1-2mm. The main plate is insulated and the contact angle with water is >90°. The main plate is equipped with a cylindrical hole with a diameter of 3.0-3.5mm , the edge of the main plate extends along the thickness direction to form a cylinder m, and the part of the inner wall of the cylinder m close to the main plate extends along a direction parallel to the main plate to form a ring p with a height of 1-2 mm and an inner diameter of 36-40 mm; the auxiliary plate It is a metal circular plate with a diameter of 34-36mm and a thickness of 1-3mm. The auxiliary plate is set in the cylinder m and supported by the ring p. The auxiliary plate, the main plate and the ring p enclose the solution cham...

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Abstract

The invention relates to a multi-component hole-in-hole nozzle with uniform electric field, which includes a main body plate, a metal electrode and an auxiliary plate. The main body plate is insulated and hydrophobic, and the main body plate is provided with holes; The catheter I and the catheter II which are independent of each other are installed, or the metal electrode is arranged with the catheter I, and the catheter I is covered with the catheter II; 2) the auxiliary plate is equipped with the first catheter A second catheter tube is inserted on the metal electrode, the second catheter tube penetrates into the first catheter tube, and a third catheter tube is placed inside, or the metal electrode is equipped with mutually independent second catheter tubes. tube and the third catheter, the second catheter and the third catheter all penetrate the first catheter; in the above two structures, all the catheters are inserted into the hole, and the part inserted into the hole Insulation; the different spaces surrounded by the hole channel and the catheter tube are respectively connected with different solution flow channels. The multi-component hole-in-hole nozzle with uniform electric field distribution of the present invention effectively improves the uniformity of electric field distribution.

Description

technical field [0001] The invention belongs to the technical field of electrostatic spinning devices, and relates to a multi-component hole-in-hole nozzle with uniform electric field distribution. Background technique [0002] Electrospinning technology is a process that can use a high-voltage electrostatic field to control the shape and specification of fibers to manufacture nanofiber webs or continuous fibers that are aligned. This technology is to overcome the surface tension of the polymer solution or melt under a high-voltage electrostatic field of several thousand volts to tens of thousands of volts to generate a charged jet flow. The solution or melt dries and solidifies during the spraying process, and finally falls on the receiving device Form fiber mats or other shapes of fiber aggregates. Due to its high specific surface area and large porosity, electrospun nanofibers have been widely used in the fields of adsorption and filtration in recent years. As the appli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/00
CPCD01D5/0069D01D5/0092
Inventor 赵铁男郑元生曾泳春
Owner DONGHUA UNIV