CN213866515U

CN213866515U - High-voltage electrostatic spinning structure

Info

Publication number: CN213866515U
Application number: CN202022684867.7U
Authority: CN
Inventors: 徐金涛; 孙常磊
Original assignee: Shanghai Yihao Nanometer Technology Co ltd
Current assignee: Shanghai Shiling Biotechnology Co ltd
Priority date: 2020-11-19
Filing date: 2020-11-19
Publication date: 2021-08-03
Anticipated expiration: 2030-11-19

Abstract

A high-voltage electrostatic spinning structure relates to the technical field of electrostatic spinning, and production efficiency can be effectively improved by adopting the structure to produce electrostatic spinning. The high-voltage electrostatic spinning structure comprises: the rotor center shaft is characterized in that fixing parts are respectively arranged at two end regions of the rotor center shaft, a plurality of high-voltage electrode wires are connected between the two fixing parts, and the high-voltage electrode wires are circumferentially distributed around the rotor center shaft. The utility model discloses mainly be applied to in the high-pressure electrostatic spinning technique.

Description

High-voltage electrostatic spinning structure

Technical Field

The utility model relates to an electrostatic spinning technical field especially involves a high-pressure electrostatic spinning structure.

Background

Electrospinning (also known as electrostatic spinning) is a process in which a polymer solution or melt is spun into a jet under the action of a strong electric field. In recent years, electrospinning has attracted much attention as a novel processing method for producing ultrafine fibers. In theory, any polymeric material that is soluble or molten can be electrospun. At present, more than 30 polymers which are successfully processed by electrospinning in the world comprise natural polymers such as DNA, collagen and silk protein, and synthetic polymers such as polyoxyethylene, polyacrylonitrile, polylactic acid, polyimide, nylon, polyvinyl alcohol, polycaprolactone and polyurethane.

In the electrospinning process, the spray device is filled with a charged polymer solution or melt. Under the action of an external electric field, the polymer liquid drops which are kept at the nozzle under the action of surface tension accumulate charges on the lower surface under the induction of the electric field and are subjected to an electric field force opposite to the direction of the surface tension. When the electric field is gradually increased, the droplet at the nozzle is elongated from a spherical shape into a conical shape, forming a so-called Taylorcone (Taylorcone). When the electric field strength increases to a critical value, the electric field force overcomes the surface tension of the liquid and is ejected from the Taylor cone. The jet flow is vibrated and unstable under the action of a high electric field, and irregular spiral motion with extremely high frequency is generated. In high-speed oscillation, the jet flow is rapidly attenuated, the solvent is also rapidly volatilized, and finally fibers with the diameter of nanometer are formed and scattered on a collecting device in a random mode to form non-woven fabrics.

However, the inventor of the present application finds that in the prior art, the high-voltage electrostatic spinning mostly adopts a needle injection mode, and in practical application, the needle blocking phenomenon often occurs, so that the needle blocking mode is difficult to conduct and clean, and the production efficiency is low.

Disclosure of Invention

An object of the utility model is to provide a high-pressure electrostatic spinning structure adopts this structure production electrostatic spinning can effectively improve production efficiency.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description.

In order to realize the utility model discloses above at least one purpose, the utility model provides a high-pressure electrostatic spinning structure, include: the rotor center shaft is characterized in that fixing parts are respectively arranged at two end regions of the rotor center shaft, a plurality of high-voltage electrode wires are connected between the two fixing parts, and the high-voltage electrode wires are circumferentially distributed around the rotor center shaft.

In practical application, the fixing piece is a circular plate sleeved on the outer side of the rotor center shaft.

And a plurality of high-voltage electrode wires are uniformly distributed around the circumferential direction of the circular plate.

Specifically, the high-voltage electrode wire is a rigid columnar body; or, the high-voltage electrode wire is a threaded body; or, the high-voltage electrode wire is a surface knurling body.

Specifically, the high-voltage electrode wire is a stainless steel multi-strand spiral winding steel wire body.

Further, the fixing piece is made of a non-metal rigid material.

Furthermore, the high-voltage electrode wire is made of a rigid high-conductivity material which is difficult to oxidize; or the high-voltage electrode wire is made of a material which is flexible, high in conductivity and not easy to oxidize.

The utility model discloses an among the high-pressure electrostatic spinning structure, because the centraxonial both ends region of rotor is provided with the mounting respectively, be connected with many high-voltage electrode silk between two mountings, and many high-voltage electrode silk are the circumference around rotor centraxonial circumference and distribute, consequently make high-pressure electrostatic spinning structure partly soak in solution (the second half week of high-voltage electrode silk soaks in solution) and do rotary motion (radially rotate rotor axis and do circular motion), can carry partial solution (the high-voltage electrode silk that carries solution can rotate to the first half week) on the high-voltage electrode silk behind rotor axis rotation a week, and this partial solution produces the taylor awl under high-tension field's effect, thereby the utility model provides a high-pressure electrostatic spinning structure can make the produced nanofiber industrialization production of high-pressure electrostatic spinning to effectively improve production efficiency.

Drawings

Fig. 1 shows a schematic three-dimensional structure diagram of a medium-high voltage electrospinning structure according to the present invention;

fig. 2 shows a schematic plane structure diagram of the high-voltage electrospinning structure of the present invention.

In the figure, 1-rotor central axis; 2-a fixing piece; 3-high voltage electrode wire.

Detailed Description

The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purposes of limitation.

With reference to the attached drawings 1 to 2 of the specification, a high voltage electrostatic spinning structure according to a preferred embodiment of the present invention includes: the rotor axis 1, the both ends region of rotor axis 1 is provided with mounting 2 respectively, is connected with many high voltage electrode silk 3 between two mountings 2, and many high voltage electrode silk 3 are the circumference around rotor axis 1 and are distributed.

In the high-voltage electrostatic spinning structure of the utility model, because the two end regions of the rotor central shaft 1 are respectively provided with the fixing parts 2, the plurality of high-voltage electrode wires 3 are connected between the two fixing parts 2, and the plurality of high-voltage electrode wires 3 are distributed in a circumference way around the rotor central shaft 1, therefore, the high-voltage electrostatic spinning structure is semi-immersed in the solution (the lower half circle of the high-voltage electrode wire 3 is immersed in the solution) and rotates (the central shaft 1 of the radial rotating rotor does circular motion), when the rotor central shaft 1 rotates for a circle, the high-voltage wire electrode 3 can carry partial solution (the high-voltage wire electrode 3 carrying the solution can rotate to the upper half circle), and the partial solution generates a Taylor cone under the action of a high-voltage electric field, thereby the embodiment of the utility model provides a high-pressure electrostatic spinning structure can make the produced nanofiber industrial production of high-pressure electrostatic spinning to effectively improve production efficiency.

In practical application, as shown in fig. 1, the fixing element 2 may preferably be a circular plate sleeved on the outer side of the rotor central shaft 1; wherein a plurality of high voltage wire electrodes 3 are evenly distributed around the circumference of the circular plate.

Specifically, as shown in fig. 1 and 2, the high voltage wire electrode 3 may be a rigid column; or, the high voltage electrode wire 3 can be a screw-shaped body; alternatively, the high voltage wire electrode 3 may be a surface-knurled body.

Alternatively, the high voltage wire electrode 3 may be a stainless steel multi-strand spirally wound steel wire body.

Further, the fixing member 2 may be made of a non-metal rigid material, such as: plastic-based or ceramic-based materials. Wherein, the rigid material has good deformation resistance under the action of static load.

Furthermore, the high voltage wire electrode 3 may be made of a rigid, high conductivity, and non-oxidizable material, such as: an aluminum alloy; or, the high voltage wire electrode 3 may be made of a flexible material with high conductivity and difficult oxidation, such as: a copper alloy.

It will be appreciated by persons skilled in the art that the embodiments of the invention shown in the foregoing description are given by way of example only and are not limiting of the invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims

1. A high voltage electrospinning structure, comprising: the rotor center shaft is characterized in that fixing parts are respectively arranged at two end regions of the rotor center shaft, a plurality of high-voltage electrode wires are connected between the two fixing parts, and the high-voltage electrode wires are circumferentially distributed around the rotor center shaft.

2. The high voltage electrospinning structure of claim 1, wherein the fixing member is a circular plate fitted around the rotor central shaft.

3. The high voltage electrospinning structure of claim 2, wherein the plurality of high voltage electrode filaments are evenly distributed around the circumference of the circular plate.

4. The high voltage electrospinning structure of claim 1, wherein the high voltage wire electrode is a rigid cylinder;

or, the high-voltage electrode wire is a threaded body;

or, the high-voltage electrode wire is a surface knurling body.

5. The high voltage electrospinning structure of claim 1 wherein the high voltage wire electrode is a stainless steel multi-strand helically wound steel filament.

6. The high-voltage electrospinning structure of any of claims 1 to 5, wherein the fixing member is made of a non-metallic rigid material.

7. The high-voltage electrostatic spinning structure according to any one of claims 1 to 5, wherein the high-voltage electrode wires are made of rigid high-conductivity materials which are not easily oxidized;

or the high-voltage electrode wire is made of a material which is flexible, high in conductivity and not easy to oxidize.