CN108893787A - A kind of radial electrospinning nozzle based on differential polygon blade - Google Patents
A kind of radial electrospinning nozzle based on differential polygon blade Download PDFInfo
- Publication number
- CN108893787A CN108893787A CN201810799417.7A CN201810799417A CN108893787A CN 108893787 A CN108893787 A CN 108893787A CN 201810799417 A CN201810799417 A CN 201810799417A CN 108893787 A CN108893787 A CN 108893787A
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- Prior art keywords
- radial
- blade
- differential
- polygon
- spinning
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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
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
-
- 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
- D01D5/0092—Electro-spinning characterised by the electro-spinning apparatus characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields
Abstract
The present invention relates to a kind of radial electrospinning nozzles based on differential polygon blade, belong to nanofiber preparation technical field, by cylindrical tube and top there is the radial spinning nozzle of differential polygon blade to constitute.Radial spinning nozzle is composed of the circumferentially identical radial blade of equally distributed multiple structures, it equidistantly arranges multiple differential polygon blades at the top of each radial blade, radial spinning nozzle is located at the top or lower part of cylindrical tube, junction internal diameter is equal and is completely embedded, is smooth, it can be achieved that the accessible of electrospinning fluid transports.Radial electrospinning nozzle inside diameter of the present invention based on differential polygon blade is big, is conducive to avoid blockage problem, can carry out electrospinning to high concentration spinning solution；Radial spinning nozzle plays the role of stable droplet, can produce multiple spinning jets, and spinning yield is big；Its tubular structure can realize that closed controllable feed flow, solvent be not volatile；There is differential polygon blade tip can generate more high field intensity, can reduce energy consumption.
Description
Technical field
The present invention relates to a kind of electrospinning nozzle, especially a kind of radial electrospinning nozzle based on differential polygon blade,
Belong to nanofiber preparation technical field.
Background technique
Electrostatic spinning is the electric field force strained polymer solution generated by high-voltage DC power supply or melt to prepare nanometer
The method of fiber is to prepare one of most effective technology of nanofiber at present.Solution electrostatic spinning apparatus can be using single gold
Belong to capillary needle tubing as spinneret and realizes spinning, the skill as disclosed in patent 200420020596.3,200410025622.6 etc.
Art.But since traditional single metal capillary needle tubing electrostatic spinning yield is lower, it is unable to satisfy industrialization demand, becomes restriction
Its bottleneck problem developed, therefore, Theron etc. is by multiple metal kernel small needle tubes in the way of arranged in a straight line or rectangular arranged
Form Multi needle electrostatic spinning apparatus [S.A.THERON, A.L.YARIN, E.ZUSSMAN, E.KROLL.Multiplejets
inelectrospinning：Experimentandmodeling.Polymer, 2005,46 (9)：2889-2899.], it is domestic and
Also occur many similar patents in the world, such as 200420107832.5,201510278266.7, institute's public affairs such as WO2007035011
The technology opened.Multi needle electrostatic spinning technique spinneret position is controllable, feeding liquid measure, controllable, spinning process is stablized, and compares in yield
Have in single needle electrostatic spinning and greatly improve, but due to there are Coulomb repulsion, caused between each syringe needle intermediate field strength it is small, two
Endeffect (edge effect) phenomenon that end field strength is big and the spinning jet of two sides syringe needle deviates outward, leads to web
The problems such as irregular to both sides thickness from centre, in addition, conventional metals capillary needle bore is small, syringe needle is easily blocked, and inconvenient clear
It washes, this fundamentally hinders the industrialized process of Multi needle electrostatic spinning.
Then, researcher proposes the technology and equipment of a large amount of needle-less electrostatic spinnings, such as：WO2005024101 is public
The first generation " nanometer spider " opened, LinTong et al. spiral winding electrostatic spinning apparatus [WANGX, NIUH, WANG X,
LINT.Needleless electrospinningofuniformnanofibersusingspiral coil spinnerets
[J].Journal ofNanomaterials,2012,2012(10):3-9.], the bubble electrostatic spinning technique of He Jihuan et al.
[HEJH, LIUY, XUL, etal.Biomimic fabricationofelectrospunnanofiberswithhigh-
Throughput [J] .Chaos, Solitons and Fractals, 2008,37：643-651.] etc..With Multi needle Static Spinning
Silk technology is compared, and above-mentioned needle-less electrostatic spinning technique the advantages such as greatly improves with no blocking, easy to clean and production efficiency.But
It is that there are still numerous common problems for such needle-less electrospinning process：Spinning emitter is mostly no tip-type face, and is pressurizeed
Area is big, to excite taylor cone to need higher voltage, so as to cause energy consumption height；Secondly as being that liquid surface freely recombinates
Injection stream is formed, so position and state that taylor cone generates are uncontrollable, gained fiber thickness is irregular, product quality is difficult to control
System；In addition, the emitter of needle-less electrostatic spinning is immersed in greatly in open spinning liquid container, (second generation nanometer spider is removed
Outside, but its fluid supplier Transverse moves the normal spinning of influence), solvent is volatile, and solution concentration changes, so as to cause spinning quality
It is unstable.For the high problem of needle-less electrostatic spinning energy consumption, there is researcher to propose based on solid needle
The Static Spinnings such as [ZL201220297190.4], tip formula [ZL201310186515.0], serration type [ZL201210347514.5]
Silk technology, such spinneret have tip, and spinning critical voltage and production energy consumption are greatly lowered, but are still had
The uncontrollable problem of fiber quality caused by open feed flow.
Summary of the invention
In view of the deficiencies of the prior art, the technical problem to be solved by the invention is to provide one kind to be based on differential polygon
The radial electrospinning nozzle of blade solves the blocking of conventional capillary needle tube type electrostatic spinning apparatus syringe needle, inconvenient cleaning and needleless
The problems such as fiber quality caused by head electrostatic spinning technique energy consumption height, open feed flow is difficult to control.
The technical solution that the present invention solves the technical problem is to provide a kind of based on the radial of differential polygon blade
Electrospinning nozzle by cylindrical tube and top there is the radial spinning nozzle of differential polygon blade to constitute.The radial spinning nozzle
It is composed of the circumferentially identical radial blade of equally distributed multiple structures, the expansion shape of radial blade can be
Rectangle, trapezoidal, polygon etc., the top of each radial blade are equidistantly arranged multiple differential polygon blades, the radiation
Shape spinning nozzle is located at top (when upward spinneret) or lower part (when the downward spinneret) of the cylindrical tube, and junction internal diameter is equal and connects
Connect close, smooth, it can be achieved that the accessible of electrospinning fluid transports；Several radial blades of the radial spinning nozzle are whole
It is metal material for metal or part, radial blade quantity is the positive integer more than or equal to 2；At the top of each radial blade etc.
Spacing is arranged the identical differential polygon blade of quantity, and the differential polygon blade quantity at top is just whole more than or equal to 2
Number；Radial blade with a thickness of 0.1~10mm (including 0.1mm and 10mm), the differential polygon vane thickness at top is little
In the thickness of radial blade；Radial blade is planar along its length or curved form, and expansion along its length is long
Degree is 1~50mm (including 1mm and 50mm), and the differential polygon blade at top is planar along its length or curved form, and
Length of run along its length is 1~50mm (including 1mm and 50mm)；The differential polygon at each radial blade and top
Blade opens angled outward, is 0 °~90 ° (including 0 ° and 90 °) with the angular range of vertical direction；The circle
Column tube is whole or part is constituted for the hollow circular-tube of metal material, and round tube inside diameter is 1~30mm (including 1mm and 30mm), length
It is unlimited with wall thickness；According to the feature of polymer spinning solution system used, the cylinder pipe internal surface can be carried out PTFE,
Spraying/magnetron sputtering processing of Teflon TFE, Teflon PFA, Teflon FEP, are suitble to different polymer dope systems
Requirement, with achieve the purpose that reduce surface tension, spinning solution be not easy with spinneret surface adhesion, prevent spinneret from blocking；?
The interface of the radial blade and the cylindrical tube may exist certain interval or gapless between radial blade；Institute
It is big to state the radial electrospinning nozzle inside diameter based on differential polygon blade, is not easy to plug, is suitable for the polymer spun to high concentration
Silk solution system carries out electrostatic spinning, and concentration range is different depending on specific polymer dope system and changes, and range can be 20
~80%.
It is of the present invention based on differential polygon blade compared with existing Multi needle and needle-less electrostatic spinning apparatus
Radial electrospinning nozzle inside diameter is big, is conducive to avoid blockage problem, can carry out electrospinning to high concentration spinning solution；Radial spinneret
Mouth increases the interfacial tension between spinning nozzle and spinning solution, can grip drop for a long time, there is stable droplet；
Meanwhile radial spinning nozzle increases spinneret liquid level area, forms free fluid surface, can excite multiple taylor cones to
Multiple spinning jets are generated, are conducive to increase spinning yield；Radial electrospinning nozzle based on differential polygon blade has pipe
Formula structure is not, it can be achieved that closed controllable feed flow, solvent be volatile；Radial electrospinning nozzle based on differential polygon blade it is micro-
Divide polygon blade that there is tip, higher electrostatic field force can be generated under identical voltage, reduces electrostatic spinning energy consumption；Separately
Outside, the radial electrospinning nozzle based on differential polygon blade can apply high direct voltage or ac high-voltage.
Detailed description of the invention
Fig. 1 is that the present invention is based on a kind of radial embodiments of electrospinning nozzle of differential polygon blade --- there are 2 and put
Penetrate shape blade, top differential polygon blade quantity is 16, radial blade expansion shape is rectangle, is flared out angle and is
0 ° of electrospinning nozzle arrangements schematic diagram；
Fig. 2 is that the present invention is based on a kind of radial embodiments of electrospinning nozzle of differential polygon blade --- there are 4 and put
Penetrate shape blade, top differential polygon blade quantity is 5, radial blade expansion shape be it is trapezoidal, to be flared out angle be 30 °
Electrospinning nozzle arrangements schematic diagram；
Fig. 3 is that the present invention is based on a kind of radial embodiments of electrospinning nozzle of differential polygon blade --- there are 4 and put
Penetrate shape blade, top differential polygon blade quantity is 5, radial blade expansion shape be it is trapezoidal, to be flared out angle be 30 °
The main view and top view of electrospinning nozzle；
Fig. 4 is that the present invention is based on a kind of radial embodiments of electrospinning nozzle of differential polygon blade --- there are 4 and put
Penetrate shape blade, top differential polygon blade quantity is 3, radial blade expansion shape is polygon, is flared out angle and is
The main view and top view of 30 ° of electrospinning nozzles；
Fig. 5 is when producing the present invention is based on the radial electrospinning nozzle of differential polygon blade for scale nanofiber
A kind of embodiment --- 7 based on differential polygon blade radial electrospinning nozzle linear array arrangement electrostatic spinning
Head.
Specific embodiment
The present invention provides a kind of radial electrospinning nozzle (referring to Fig. 1~5) based on differential polygon blade, by cylinder
There is the radial spinning nozzle 12 of differential polygon blade to be composed for pipe 11 and top.It is combined with specific embodiments below and its attached
Figure is further discussed below the present invention, and specific embodiment is only used for further illustrating the present invention, does not constitute and want to the present patent application right
The limitation asked.
Embodiment one：Shown in Fig. 1, for the present invention is based on a kind of implementations of the radial electrospinning nozzle of differential polygon blade
Example --- to have 2 radial blades, top differential polygon blade quantity be 16, radial blade expansion shape be rectangle,
It is flared out the electrospinning nozzle that angle is 0 °, specially：The radial spinning nozzle 12 is located at the top of the cylindrical tube 11
(upward spinneret), the radial spinning nozzle internal diameter and the cylinder bore are equal and be completely embedded, be smooth, it can be achieved that spinning
The accessible of fluid transports；The radial spinning nozzle 12 is made of circumferentially equally distributed 2 radial blades, radial
Mounted blade shape is rectangle, equidistant at the top of each radial blade there are the gap of 0.2mm between 2 radial blades
It arranges 16 differential polygon blades；The thickness of radial blade and top differential polygon blade is 0.1mm, and along length
Spending direction is in circular arc camber, and radial blade length of run is 10mm, and top differential polygon mounted blade length is 30mm, often
The differential polygon blade at a radial blade and top is flared out 0 °, the differential polygon leaf at radial blade and top
The material of piece is stainless steel；11 material of cylindrical tube is stainless steel, internal diameter 30mm, length 50mm；Cylinder pipe internal surface is not made
Spraying/magnetron sputtering processing.
Embodiment two：Shown in Fig. 2 and Fig. 3, for the present invention is based on the radial electrospinning nozzle of differential polygon blade one kind
Embodiment --- having 4 radial blades, top differential polygon blade quantity is 5, radial blade expansion shape is ladder
Shape is flared out the electrospinning nozzle that angle is 30 °, specially：The radial spinning nozzle 12 is located under the cylindrical tube 11
Portion's (downward spinneret), the radial spinning nozzle internal diameter and the cylinder bore it is completely the same and be completely embedded it is smooth, can be real
Existing the accessible of spin fluid transports；The radial spinning nozzle 12 is made of circumferentially equally distributed 4 radial blades,
Radial blade expansion shape is trapezoidal, 5 differential polygon blades of equidistantly arranging at the top of each radial blade；It is radial
The thickness of blade and top differential polygon blade is 0.2mm, and planar along its length, length of run 4mm,
The differential polygon blade at each radial blade and top is flared out 30 °, and the differential at radial blade and top is polygon
The material of shape blade is stainless steel；11 material of cylindrical tube is stainless steel, internal diameter 1.6mm, length 5mm；Cylinder pipe internal surface
Spray PTFE；In the interface of radial blade and cylindrical tube, there are the gaps 0.2mm between radial blade.
Embodiment three：Shown in Fig. 4, for the present invention is based on a kind of radial implementations of electrospinning nozzle of differential polygon blade
Example --- to have 4 radial blades, top differential polygon blade quantity be 3, radial blade expansion shape be polygon,
It is flared out the electrospinning nozzle that angle is 30 °, specially：The radial spinning nozzle 12 is located at the lower part of the cylindrical tube 11
(downward spinneret), the radial spinning nozzle internal diameter and the cylinder bore it is completely the same and be completely embedded it is smooth, it can be achieved that
The accessible of spin fluid transports；The radial spinning nozzle 12 is made of circumferentially equally distributed 4 radial blades, is put
Penetrating shape mounted blade shape is polygon, 3 differential polygon blades of equidistantly arranging at the top of each radial blade；It is radial
The thickness of blade and top differential polygon blade is 0.2mm, and planar along its length, length of run 4mm,
The differential polygon blade at each radial blade and top is flared out 30 °, and the differential at radial blade and top is polygon
The material of shape blade is stainless steel；11 material of cylindrical tube is stainless steel, internal diameter 1.6mm, length 5mm；Cylinder pipe internal surface
Spray PTFE；In the interface of radial blade and cylindrical tube, there are the gaps 0.2mm between radial blade.
Example IV：Shown in Fig. 5, for the present invention is based on the radial electrospinning nozzles of differential polygon blade to be used for scale
Nanofiber produce when a kind of embodiment --- 7 radial electrospinning nozzles based on differential polygon blade are linearly aligned
Electrostatic spinning head, wherein including 7 radial electrospinning nozzles based on differential polygon blade, the spacing of radial electrospinning nozzle
For 20mm.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend/embodiment shown and described herein.
Claims (8)
1. a kind of radial electrospinning nozzle based on differential polygon blade has differential polygon blade by cylindrical tube and top
Radial spinning nozzle constitute.There is the radial spinning nozzle of differential polygon blade to be located at the upper of the cylindrical tube at the top
Portion's (when upward spinneret) or lower part (when downward spinneret), junction internal diameter is equal and is completely embedded, is smooth, it can be achieved that electrospinning fluid
Accessible transport.
2. the radial electrospinning nozzle according to claim 1 based on differential polygon blade, it is characterised in that：It is described to put
It penetrates shape spinning nozzle to be composed of the circumferentially identical radial blade of equally distributed multiple structures, the expansion of radial blade
Shape can be rectangle, trapezoidal, polygon etc., and the top of each radial blade is equidistantly arranged multiple differential polygon leaves
Piece, the radial blade generally metal or part are metal material, the differential polygon blade generally metal at top
Material or part are metal material.
3. the radial electrospinning nozzle according to claim 1 to 2 based on differential polygon blade, it is characterised in that：It is described
Radial blade quantity be positive integer more than or equal to 2, the number of differential polygon blade at the top of each radial blade
Amount is positive integer more than or equal to 2, the differential polygon blade at the radial blade and top flare up one outward
Determine angle, the angular range with vertical direction is 0 °~90 ° (including 0 ° and 90 °).
4. the radial electrospinning nozzle according to claim 1 to 3 based on differential polygon blade, it is characterised in that：It is described
Radial blade with a thickness of 0.1~10mm (including 0.1mm and 10mm), the differential polygon vane thickness at top is not more than
The thickness of radial blade.
5. according to claim 1 based on the radial electrospinning nozzle of differential polygon blade described in -4, it is characterised in that：It is described
Radial blade is planar along its length or curved form, and length of run along its length be 1~50mm (including
1mm and 50mm), the differential polygon blade at top is planar along its length or curved form, and expansion along its length
Length is not more than the length of run of radial blade along its length.
6. according to claim 1 based on the radial electrospinning nozzle of differential polygon blade described in -5, it is characterised in that：It is described
Cylindrical tube is whole or part is that the hollow circular-tube of metal material is constituted, round tube inside diameter is 1~30mm (including 1mm and 30mm),
Length and wall thickness are unlimited.
7. according to claim 1 based on the radial electrospinning nozzle of differential polygon blade described in -6, it is characterised in that：It can root
According to the feature of polymer spinning solution system used, PTFE, Teflon TFE, Teflon are carried out to the cylinder pipe internal surface
Spraying/magnetron sputtering processing of PFA, Teflon FEP, are suitble to the requirement of different polymer dope systems, to reach reduction table
Face tension, spinning solution are not easy and spinneret surface adhesion, the purpose for preventing spinneret from blocking.
8. according to claim 1 based on the radial electrospinning nozzle of differential polygon blade described in -7, it is characterised in that：It is described
Radial blade and cylindrical tube interface, may exist certain interval or gapless between radial blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799417.7A CN108893787A (en) | 2018-07-19 | 2018-07-19 | A kind of radial electrospinning nozzle based on differential polygon blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799417.7A CN108893787A (en) | 2018-07-19 | 2018-07-19 | A kind of radial electrospinning nozzle based on differential polygon blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108893787A true CN108893787A (en) | 2018-11-27 |
Family
ID=64351323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810799417.7A Withdrawn CN108893787A (en) | 2018-07-19 | 2018-07-19 | A kind of radial electrospinning nozzle based on differential polygon blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108893787A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779505A (en) * | 2019-02-19 | 2019-05-21 | 梅玲玲 | A kind of haze screen window and its manufacturing method |
| CN110886023A (en) * | 2019-10-31 | 2020-03-17 | 东华大学 | Disc type porous spinning assembly for electrostatic spinning |
-
2018
- 2018-07-19 CN CN201810799417.7A patent/CN108893787A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779505A (en) * | 2019-02-19 | 2019-05-21 | 梅玲玲 | A kind of haze screen window and its manufacturing method |
| CN109779505B (en) * | 2019-02-19 | 2020-11-06 | 玉环市星光眼镜厂 | Anti-haze screen window and manufacturing method thereof |
| CN110886023A (en) * | 2019-10-31 | 2020-03-17 | 东华大学 | Disc type porous spinning assembly for electrostatic spinning |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20181127 |