CN110219062A - It is centrifuged electrospinning device and its gas assists wire vent system - Google Patents
It is centrifuged electrospinning device and its gas assists wire vent system Download PDFInfo
- Publication number
- CN110219062A CN110219062A CN201910571395.3A CN201910571395A CN110219062A CN 110219062 A CN110219062 A CN 110219062A CN 201910571395 A CN201910571395 A CN 201910571395A CN 110219062 A CN110219062 A CN 110219062A
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- China
- Prior art keywords
- gas
- fluid hole
- kernel
- shell
- wire vent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
Abstract
The invention discloses a kind of gases for being centrifuged electrospinning device to assist wire vent system, comprising: syringe needle, including coaxial arrangement and from the inside to the outside the kernel fluid hole, venthole and the shell fluid hole that set gradually；Gas supply device, for being filled with gas into the venthole so as to form air supporting between kernel fluid hole outflow fluid and shell fluid hole outflow fluid.Venthole is set between the kernel fluid hole and shell fluid hole of syringe needle, then by gas supply device, makes to form gas at venthole, gas forms air supporting between kernel fluid hole and shell fluid hole outflow fluid, is dissolved each other with being effectively prevented from the two.The invention also discloses a kind of centrifugation electrospinning devices including above-mentioned gas auxiliary wire vent system.
Description
Technical field
The present invention relates to spinning equipment technical fields, more specifically to a kind of gas for being centrifuged electrospinning device
Wire vent system is assisted, a kind of centrifugation electrospinning device including above-mentioned gas auxiliary wire vent system is further related to.
Background technique
In the research of forming method of electrostatic spinning, filled by selecting different polymer solution systems, spinneret and collecting
It sets and spinning condition, the electrospun fibers of different structure form can be obtained.Wherein, more next for the research of spinning head apparatus
It is more.Static Spinning spinning head provides jet stream excitation site, to realize electrostatic by generating fine droplet during the spinning process
The generation of spinning process.According to the difference of spinning head, electrostatic spinning can be divided into single nozzle electrostatic spinning, composite spray jet head Static Spinning
Silk, multi-nozzle electrospinning, Free Surface electrostatic spinning, centrifugation electrostatic spinning etc..
Coaxial electrostatic spinning technology is the structure for improving spinning syringe needle on the basis of conventional electrostatic spinning, can make
Standby hollow or core-shell structure composite fibre.It is stored up using fiber prepared by coaxial electrostatic spinning technology in biological medicine, the energy
It deposits, the fields such as micro-nano electronics have a wide range of applications and development potentiality.
Currently, compound syringe needle of two coaxial capillaries by the mutually nested composition of improvement, in order to guarantee shell solution
It flows smooth, can be stored using different storage solutions devices there are certain gap between two capillaries of ectonexine
Inner nuclear layer and outer shell polymer solution, under the common promotion of propeller, two layers of nucleocapsid of liquid converges at needle tip
And composite droplet is formed, preparing in the case where the effect of high-voltage electrostatic field stretches has skin-core structure comprising two components or more
Composite fibre, ectonexine solution flow velocity is more difficult to control, and there are certain operation difficulties.Therefore coaxial eccentricity electrostatic at this stage
The material of spinning kernel and shell is easy to appear mixing in spinning excessively, and core-shell structure is caused to be destroyed.
In conclusion the material for how efficiently solving kernel and shell is easy to appear in spinning, mixing is excessive to be asked
Topic, is current those skilled in the art's urgent problem.
Summary of the invention
In view of this, the first purpose of this invention is to provide a kind of gas auxiliary wire vent for being centrifuged electrospinning device
System, gas auxiliary wire vent system can efficiently solve kernel and the material of shell is easy to appear mixing in spinning excessively
The problem of, a second object of the present invention is to provide a kind of centrifugation electrostatic spinnings including above-mentioned gas auxiliary wire vent system to set
It is standby.
In order to reach above-mentioned first purpose, the invention provides the following technical scheme:
A kind of gas auxiliary wire vent system being centrifuged electrospinning device, comprising:
Syringe needle, including coaxial arrangement and from the inside to the outside the kernel fluid hole, venthole and the shell fluid hole that set gradually；
Gas supply device, for being filled with gas into the venthole so that kernel fluid hole outflow fluid and outer
Air supporting is formed between shell fluid hole outflow fluid.
According to above-mentioned technical solution, when kernel fluid hole and shell fluid hole flow out fluid, fluid exists certain
Flow velocity, so dispersed can't be presented, i.e., when kernel fluid hole is circular hole, the fluid meeting flowed out at this time from kernel fluid hole
It is concentrated into cylindric, when flow velocity is reduced to a certain extent, starts to disperse, likewise, shell fluid hole is annulus hole, then
The fluid of shell fluid hole outflow can be concentrated into circular tube shaped, start to disperse when flow velocity is reduced to a certain extent.So to
When feeding gas between two fluids, as long as gas atmosphere is suitable, not break through two fluids, then the gas will be stable
Between two fluid beams.And when fluid flow rate reduces, when being easy to appear dispersion, at this time because fluid is intended to solidify, energy
It is enough effectively to prevent breakthrough of gas, while gas will play certain interception, and then effectively prevent to dissolve each other.So
In the gas auxiliary wire vent system of the centrifugation electrospinning device, it is arranged between the kernel fluid hole and shell fluid hole of syringe needle
Venthole makes that gas is discharged at venthole, gas is to kernel fluid hole and shell fluid hole stream then by gas supply device
Air supporting is formed between fluid out, is dissolved each other with being effectively prevented from the two.So the gas of the centrifugation electrospinning device assists
Wire vent system can efficiently solve kernel and the material of shell is easy to appear the excessive problem of mixing in spinning.
Preferably, the gas supply device includes air pump and the pressure regulation that is connected between the venthole and the air pump
Valve.
Preferably, the syringe needle includes successively inner tube, the tube and the outer tube of sheathed setting from inside to outside, said inner tube lumen
For core liquid runner and front-end port is the kernel fluid hole, forms gas between said inner tube outside on the inside of the middle pipe
Body runner, and front-end port forms the cricoid venthole and compares the forwardly convex setting of kernel fluid hole, it is described outer
Form housing liquid runner between on the inside of pipe and on the outside of the middle pipe, and front-end port formed the cricoid shell fluid hole and
Compared to the forwardly convex setting of the venthole.
Preferably, said inner tube, the middle pipe and the outer tube are that back segment is cylindrical, leading portion is in pyramid type, described
The side of outer tube is provided with shell inlet.
Preferably, including for the kernel liquid feed device to kernel fluid hole feed flow and for shell fluid hole feed flow
Shell liquid feed device, the kernel liquid feed device and the shell liquid feed device are plunger type liquid extruding device.
Preferably, further include for the high voltage pressure supply device that is connected on the outside of the syringe needle leading portion so that the syringe needle
Front side forms electrostatic field.
In order to reach above-mentioned second purpose, the present invention also provides a kind of centrifugation electrospinning device, the centrifugation electrostatic
Spinning equipment includes any of the above-described kind of gas auxiliary wire vent system, further includes rotator and the driving for driving rotator to rotate
Device, wherein the syringe needle of gas auxiliary wire vent system is fixedly mounted on rotator.Since above-mentioned gas assists wire vent system
It has above-mentioned technique effect, the centrifugation electrospinning device with gas auxiliary wire vent system should also have corresponding technology to imitate
Fruit.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram that gas provided in an embodiment of the present invention assists wire vent system.
It is marked in attached drawing as follows:
High voltage pressure supply device 1, syringe needle 2, pressure regulator valve 3, air pump 4, kernel liquid feed device 5, shell liquid feed device 6.
Specific embodiment
The embodiment of the invention discloses a kind of gases for being centrifuged electrospinning device to assist wire vent system, to efficiently solve
The material of kernel and shell is easy to appear in spinning mixes excessive problem.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram that gas provided in an embodiment of the present invention assists wire vent system.
In a specific embodiment, a kind of gas auxiliary wire vent system for being centrifuged electrospinning device is present embodiments provided
System, specific gas auxiliary wire vent system includes syringe needle 2 and gas supply device.
Wherein syringe needle 2 includes coaxial arrangement and the kernel fluid hole, venthole and the shell that set gradually from the inside to the outside go out liquid
Hole.In actual use, kernel liquid feed device 5 and shell liquid feed device 6 are correspondingly arranged on, with respectively with kernel fluid hole and outer
The connection of shell fluid hole supplies corresponding solution with core fluid hole respectively inwards and shell fluid hole.In 2 application process of syringe needle, needle
First 2 uniform rotation goes out so that kernel fluid hole, shell fluid hole continuously go out liquid because shell fluid hole is co-axially located at kernel
On the outside of fluid apertures, i.e., shell fluid hole goes out liquid in a tubular form, is gone out on the outside of liquid with being enclosed in the column of kernel fluid hole, forms shell, and
The column of kernel fluid hole goes out liquid, forms kernel compared to shell.As fluid throws away or sprays forward in jet-like, Zhi Daogu
Change, and then forms cured shell packet nuclear structure.The syringe needle 2 is additionally provided with ventilation between kernel fluid hole and shell fluid hole
Hole, after kernel fluid hole and shell fluid hole go out liquid, to be formed between the two by the gas supply of venthole to form certain gas
Body cavity.
Wherein gas supply device, for being filled with gas into venthole, so that kernel fluid hole outflow fluid and shell
Forms air supporting between fluid hole outflow fluid, i.e., it should be noted that gas supply device be fed to by venthole it is interior
The gas that core fluid hole flows out between fluid and shell fluid hole outflow fluid is mainly a kind of air supporting, and the air pressure is unsuitable
It is too high, to avoid the tube wall that shell fluid hole goes out liquid formation is broken through.It should be noted that the wherein specific air pressure of gas, it should
Have with the correlative factors such as kernel fluid hole and shell fluid hole outflow fluid flow rate, material and integrated environment temperature, humidity
It closes, therefore is not specifically limited herein, to adjust according to the actual situation, so as to go out liquid to kernel fluid hole outflow fluid and shell
Hole flowing out stream body is formed subject to air supporting, is dissolved each other with being effectively prevented from.
It should be noted that when kernel fluid hole and shell fluid hole flow out fluid, fluid there are certain flow velocity,
So dispersed can't be presented, i.e., when kernel fluid hole is circular hole, can be concentrated into from the fluid that kernel fluid hole flows out at this time
It is cylindric, when flow velocity is reduced to a certain extent, start to disperse, likewise, shell fluid hole is annulus hole, then shell goes out
The fluid of fluid apertures outflow can be concentrated into circular tube shaped, start to disperse when flow velocity is reduced to a certain extent.So flowed to two
When feeding gas between body, as long as gas atmosphere is suitable, not break through two fluids, then what the gas will be stable is located at two
Between a fluid beam.And when fluid flow rate reduces, it, can be effective at this time because fluid is intended to solidify when being easy to appear dispersion
Ground prevents breakthrough of gas, while gas will play certain interception, and then effectively prevent to dissolve each other.
Specifically, going out liquid material such as kernel fluid hole: (10%---15%, polyacrylonitrile are by monomers acrylonitrile to PAN
Obtained through Raolical polymerizable), shell fluid hole goes out liquid material: TPU
(10%---15%, Thermoplastic polyurethanes, thermoplastic polyurethane elastomer rubber), out liquid
Speed (milliliter is per hour) in 0.5ml/h to 1ml/h, with entire spinning environment temperature at 30 DEG C (degree Celsius), humidity it is wet
When between 30% to 40%, the air pressure of venthole at this time be can be in 0.1kpa (kPa) between 0.2kpa.
So in the gas auxiliary wire vent system of the centrifugation electrospinning device, in the kernel fluid hole of syringe needle 2 and outer
Venthole is set between shell fluid hole, then by gas supply device, makes that gas is discharged at venthole, gas goes out liquid to kernel
Air supporting is formed between hole and shell fluid hole outflow fluid, is dissolved each other with being effectively prevented from the two.So the centrifugation Static Spinning
The material that the gas auxiliary wire vent system of silk equipment can efficiently solve kernel and shell is easy to appear in spinning to be mixed
The problem of spending.
Further, it is contemplated that, for different situations, need to adjust the air pressure of venthole, to meet current spinning
Environment, therefore have to the air pressure of venthole and accurately require very much, it is based on this, gas supply device includes air pump 4 and connection
Pressure regulator valve 3 between venthole and air pump 4.By pressure regulator valve 3, to adjust venthole air pressure in actual scene, so that logical
Stomata air pressure only forms air supporting, the solution without breaking through the outflow of shell fluid hole.
About syringe needle 2 therein, for more preferable wire vent, to form shell packet nuclear structure, herein preferred syringe needle 2 include by it is interior to
The inner tube, the tube and the outer tube of outer successively sheathed setting, wherein inner tube lumen is core liquid runner and front-end port is in described
Core fluid hole forms gas flow between middle pipe inside and inner tube outside, and front-end port forms cricoid venthole and compares
The forwardly convex setting of kernel fluid hole forms housing liquid runner between outer tube inside and middle pipe outside, and front-end port is formed
Cricoid shell fluid hole and compare the forwardly convex setting of venthole.Specifically, can make wherein inner tube, the tube and the outer tube be
Back segment is cylindrical, leading portion is in pyramid type, and the side of outer tube is provided with shell inlet, and wherein kernel inlet can with air inlet
To be arranged at end.It should be noted that herein and in context, forward direction refers to wire vent direction.
As described above, fluid is flowed out for wherein kernel fluid hole and shell fluid hole flows out fluid, fluid flow rate meeting
Wherein air supporting effect is influenced, therefore in order to avoid breakthrough of gas shell fluid hole flows out fluid, then requires interior outer fluid stream
Speed is stable.Based on this, herein preferably, for the kernel liquid feed device 5 to kernel fluid hole feed flow and it is used for shell
The shell liquid feed device 6 of fluid hole feed flow is plunger type liquid extruding device, to guarantee that propulsive liquid pressure is steady.
Further, it is contemplated that fluid flow rate is higher, then air supporting effect is better, further includes herein preferably based on this
For with the high voltage pressure supply device 1 that is connected on the outside of syringe needle 2 leading portion, so as to form electrostatic field on front side of syringe needle 2, so to fluid into
Row electrostatic accelerates.
The gas provided in based on the above embodiment assists wire vent system, and the present invention also provides a kind of gases to assist wire vent
System, gas auxiliary wire vent system include any one gas auxiliary wire vent system in above-described embodiment, further include rotator
With for driving the driving device of the rotator rotation, the syringe needle of gas auxiliary wire vent system is fixedly mounted on the rotator
On.Wire vent system is assisted since gas auxiliary wire vent system uses the gas in above-described embodiment, so the gas assists
The beneficial effect of wire vent system please refers to above-described embodiment.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (7)
1. a kind of gas for being centrifuged electrospinning device assists wire vent system characterized by comprising
Syringe needle, including coaxial arrangement and from the inside to the outside the kernel fluid hole, venthole and the shell fluid hole that set gradually；
Gas supply device, for being filled with gas into the venthole so that kernel fluid hole outflow fluid and described outer
Air supporting is formed between shell fluid hole outflow fluid.
2. the gas of centrifugation electrospinning device according to claim 1 assists wire vent system, which is characterized in that the gas
Body feeding includes air pump and the pressure regulator valve that is connected between the venthole and the air pump.
3. the gas of centrifugation electrospinning device according to claim 2 assists wire vent system, which is characterized in that the needle
Head includes that successively the inner tube, the tube and the outer tube of sheathed setting, said inner tube lumen are core liquid runner and front end from inside to outside
Port is the kernel fluid hole, forms gas flow, and front-end port shape between said inner tube outside on the inside of the middle pipe
The venthole circlewise and the forwardly convex setting of kernel fluid hole is compared, on the inside of the outer tube and on the outside of the middle pipe
Between form housing liquid runner, and front-end port forms the cricoid shell fluid hole and compared to the venthole to lordosis
It is arranged out.
4. the gas of centrifugation electrospinning device according to claim 3 assists wire vent system, which is characterized in that in described
Pipe, the middle pipe and the outer tube are that back segment is cylindrical, leading portion is in pyramid type, the side of the outer tube be provided with shell into
Liquid mouth.
5. it is according to claim 2 centrifugation electrospinning device gas assist wire vent system, which is characterized in that including with
In the kernel liquid feed device to the kernel fluid hole feed flow and for the shell liquid feed device to the shell fluid hole feed flow,
The kernel liquid feed device and the shell liquid feed device are plunger type liquid extruding device.
6. the gas of centrifugation electrospinning device according to claim 1-5 assists wire vent system, feature exists
In, further include for the high voltage pressure supply device that be connected on the outside of the syringe needle leading portion so that formation electrostatic on front side of the syringe needle
?.
7. a kind of centrifugation electrospinning device, the driving device including rotator and for driving the rotator rotation is special
Sign is, further includes gas auxiliary wire vent system as claimed in any one of claims 1 to 6, the gas auxiliary wire vent system
Syringe needle is fixedly mounted on the rotator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910571395.3A CN110219062B (en) | 2019-06-26 | 2019-06-26 | Centrifugal electrostatic spinning equipment and gas-assisted filament discharge system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910571395.3A CN110219062B (en) | 2019-06-26 | 2019-06-26 | Centrifugal electrostatic spinning equipment and gas-assisted filament discharge system thereof |
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| Publication Number | Publication Date |
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| CN110219062A true CN110219062A (en) | 2019-09-10 |
| CN110219062B CN110219062B (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910571395.3A Active CN110219062B (en) | 2019-06-26 | 2019-06-26 | Centrifugal electrostatic spinning equipment and gas-assisted filament discharge system thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226580A1 (en) * | 2005-03-29 | 2006-10-12 | University Of Washington | Electrospinning of fine hollow fibers |
| WO2012064287A1 (en) * | 2010-11-12 | 2012-05-18 | Ngee Ann Polytechnic | A porous fiber, methods of making the same and uses thereof |
| CN103147138A (en) * | 2013-03-08 | 2013-06-12 | 厦门大学 | Electrospinning direct-writing jet-printing device enhancing focusing function by virtue of double layers of air |
| CN104593881A (en) * | 2015-02-12 | 2015-05-06 | 北京化工大学 | Electrostatic spinning device for preparing double-component composite material nanofiber |
| CN204939670U (en) * | 2015-09-18 | 2016-01-06 | 厦门大学 | Air-flow auxiliary electrostatic device for spinning |
| CN108987736A (en) * | 2018-09-21 | 2018-12-11 | 合肥国轩高科动力能源有限公司 | A kind of preparation method of coaxial carbon/LiFePO4/graphene nano fiber positive electrode |
-
2019
- 2019-06-26 CN CN201910571395.3A patent/CN110219062B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060226580A1 (en) * | 2005-03-29 | 2006-10-12 | University Of Washington | Electrospinning of fine hollow fibers |
| WO2012064287A1 (en) * | 2010-11-12 | 2012-05-18 | Ngee Ann Polytechnic | A porous fiber, methods of making the same and uses thereof |
| CN103147138A (en) * | 2013-03-08 | 2013-06-12 | 厦门大学 | Electrospinning direct-writing jet-printing device enhancing focusing function by virtue of double layers of air |
| CN104593881A (en) * | 2015-02-12 | 2015-05-06 | 北京化工大学 | Electrostatic spinning device for preparing double-component composite material nanofiber |
| CN204939670U (en) * | 2015-09-18 | 2016-01-06 | 厦门大学 | Air-flow auxiliary electrostatic device for spinning |
| CN108987736A (en) * | 2018-09-21 | 2018-12-11 | 合肥国轩高科动力能源有限公司 | A kind of preparation method of coaxial carbon/LiFePO4/graphene nano fiber positive electrode |
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| CN110219062B (en) | 2021-09-03 |
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