CN108707982A - A kind of radial electrospinning nozzle based on differential trapezoid blade - Google Patents
A kind of radial electrospinning nozzle based on differential trapezoid blade Download PDFInfo
- Publication number
- CN108707982A CN108707982A CN201810799426.6A CN201810799426A CN108707982A CN 108707982 A CN108707982 A CN 108707982A CN 201810799426 A CN201810799426 A CN 201810799426A CN 108707982 A CN108707982 A CN 108707982A
- Authority
- CN
- China
- Prior art keywords
- radial
- blade
- differential
- trapezoid
- spinning
- 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.)
- Withdrawn
Links
Classifications
-
- 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 present invention relates to a kind of radial electrospinning nozzle based on differential trapezoid blade, belongs to nanofiber preparing technical field, by cylindrical tube and top there is the radial spinning nozzle of differential trapezoid blade to constitute.Radial spinning nozzle is composed of the circumferentially identical radial blade of equally distributed multiple structures, it equidistantly arranges multiple differential trapezoid 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 trapezoid 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 generate 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 trapezoid 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 trapezoid blade belongs to
In nanofiber preparing technical field.
Background technology
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.Single gold may be used in solution electrostatic spinning apparatus
Belong to capillary needle tubing and realizes spinning, the skill as disclosed in patent 200420020596.3,200410025622.6 etc. as spinneret
Art.But since traditional single metal capillary needle tubing electrostatic spinning yield is relatively low, industrialization demand is cannot be satisfied, restriction is become
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 Jing electricity Fang Sizhuanzhi [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 is compared 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 both 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 easily blocks, 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 spiral winding Jing electricity Fang Sizhuanzhi [ of the first generation " nanometer spider " opened, LinTong et al.;WANGX,NIUH,WANG X,
LINT.Needleless electrospinningofuniformnanofibersusingspiral coil spinnerets
[J].Journal ofNanomaterials,2012,2012(10):3-9.], He Jihuan et al. bubble electrostatic spinning technique
[HEJH, LIUY, XUL, etal.Biomimic fabricationofelectrospunnanofiberswithhigh-
throughput[J].Chaos, Solitons andFractals, 2008,37：643-651.]Deng.With Multi needle electrostatic spinning
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 high energy consumption；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 removes
Outside, but its fluid supplier Transverse move the normal spinning of influence), solvent is volatile, and solution concentration changes, so as to cause spinning quality
It is unstable.The problem of for needle-less electrostatic spinning high energy consumption, there is researcher to propose based on solid needle
[ZL201220297190.4], tip Shi [ZL201310186515.0], Ju Chishi [ZL201210347514.5]Equal Static Spinnings
Silk technology, such spinneret have tip, and spinning critical voltage and energy consumption are greatly lowered, but are still had
The uncontrollable problem of fiber quality caused by open feed flow.
Invention content
In view of the deficiencies of the prior art, the technical problem to be solved by the invention is to provide one kind being based on the trapezoidal leaf of differential
The radial electrospinning nozzle of piece solves the blocking of conventional capillary needle tube type electrostatic spinning apparatus syringe needle, inconvenient cleaning and needle-less
The problems such as fiber quality caused by electrostatic spinning technique high energy consumption, open feed flow is difficult to control.
The technical solution that the present invention solves the technical problem is to provide a kind of radial electricity based on differential trapezoid blade
Nozzle is spun, by cylindrical tube and top there is the radial spinning nozzle of differential trapezoid blade to constitute.The radial spinning nozzle is by edge
The identical radial blade of multiple structures of even circumferential distribution is composed, and the expansion shape of radial blade can be square
Shape, trapezoidal, polygon etc., the top of each radial blade are equidistantly arranged multiple differential trapezoid blades, the radial spray
Silk mouth 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 connection is tight
It is close, smooth, it can be achieved that the accessible of electrospinning fluid transports；Several radial blades of the radial spinning nozzle are generally golden
Belong to or part is metal material, radial blade quantity is the positive integer more than or equal to 2；At the top of each radial blade equidistantly
The identical differential trapezoid blade of quantity of arranging, the differential trapezoid blade quantity at top are the positive integer more than or equal to 2；It is radial
The thickness of blade is 0.1~10mm (including 0.1mm and 10mm), and the differential trapezoid blade thickness at top is not more than radial blade
Thickness；Radial blade is planar along its length or curved, and length of run along its length is 1~50mm
The differential trapezoid blade of (including 1mm and 50mm), top is planar along its length or curved, and exhibition along its length
It is 1~50mm (including 1mm and 50mm) to open length；The differential trapezoid blade at each radial blade and top opens outward
Angled, the angular range with vertical direction is 0 °~90 ° (including 0 ° and 90 °)；The cylindrical tube is whole or part is
The hollow circular-tube of metal material is constituted, and round tube inside diameter is 1~30mm (including 1mm and 30mm), and length and wall thickness are unlimited；According to institute
With the feature of polymer spinning solution system, PTFE, Teflon TFE, Teflon can be 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；In the radial blade and described
The interface of cylindrical tube may exist certain interval or gapless between radial blade；It is described based on differential trapezoid blade
Radial electrospinning nozzle inside diameter is big, is not easy to plug, and is suitable for carrying out electrostatic spinning to the polymer spinning solution system of high concentration,
Concentration range is different depending on specific polymer dope system and changes, and range can be 20~80%.
Compared with existing Multi needle and needle-less electrostatic spinning apparatus, putting based on differential trapezoid blade of the present invention
It is big to penetrate shape electrospinning nozzle inside diameter, is conducive to avoid blockage problem, electrospinning can be carried out to high concentration spinning solution；Radial spinning nozzle
The interfacial tension between spinning nozzle and spinning solution is increased, drop can be gripped for a long time, there is stable droplet；Together
When, radial spinning nozzle increases spinneret liquid level area, forms free fluid surface, multiple taylor cones can be excited to produce
Raw multiple spinning jets are conducive to increase spinning yield；Radial electrospinning nozzle based on differential trapezoid blade has tubular type knot
Structure is not, it can be achieved that closed controllable feed flow, solvent be volatile；The differential of radial electrospinning nozzle based on differential trapezoid blade is trapezoidal
Blade has tip, and higher electrostatic field force can be generated under identical voltage, reduces electrostatic spinning energy consumption；In addition, based on micro-
Divide the radial electrospinning nozzle of trapezoid blade that can apply high direct voltage or ac high-voltage.
Description of the drawings
Fig. 1 is that the present invention is based on a kind of radial embodiments of electrospinning nozzle of differential trapezoid blade --- there are 2 radiation
It is 0 ° that shape blade, top differential trapezoid blade quantity, which are 16, radial blade expansion shape is rectangle, is flared out angle
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 trapezoid blade --- there are 4 radiation
Shape blade, top differential trapezoid blade quantity is 5, the electricity that it is 30 ° that radial blade expansion shape, which is trapezoidal, is flared out angle
Spin nozzle arrangements schematic diagram；
Fig. 3 is that the present invention is based on a kind of radial embodiments of electrospinning nozzle of differential trapezoid blade --- there are 4 radiation
It is 30 ° of electrospinnings that shape blade, top differential trapezoid blade quantity, which are 5, radial blade expansion shape is trapezoidal, is flared out angle
The front view and vertical view of nozzle；
Fig. 4 is that the present invention is based on a kind of radial embodiments of electrospinning nozzle of differential trapezoid blade --- there are 4 radiation
It is 30 ° of electricity that shape blade, top differential trapezoid blade quantity, which are 3, radial blade expansion shape is polygon, is flared out angle
Spin the front view and vertical view of nozzle；
Fig. 5 is when being produced for scale nanofiber the present invention is based on the radial electrospinning nozzle of differential trapezoid blade
A kind of embodiment --- the electrostatic spinning head of 7 radial electrospinning nozzle linear array arrangements based on differential trapezoid blade.
Specific implementation mode
The present invention provides a kind of radial electrospinning nozzle (referring to Fig. 1~5) based on differential trapezoid blade, by cylindrical tube
11 and top have differential trapezoid blade radial spinning nozzle 12 be composed.With reference to specific embodiment and its attached drawing into
The one step narration present invention, specific embodiment are only used for further illustrating the present invention, not constitute to the present patent application claim
Limitation.
Embodiment one：Shown in Fig. 1, for the present invention is based on a kind of implementations of the radial electrospinning nozzle of differential trapezoid blade
Example --- to have 2 radial blades, top differential trapezoid blade quantity be 16, radial blade expansion shape be rectangle, to
Outer opening angle is 0 ° of electrospinning nozzle, specially：The radial spinning nozzle 12 be located at the cylindrical tube 11 top (to
Upper 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 stream
The accessible of body transports；The radial spinning nozzle 12 is made of circumferentially equally distributed 2 radial blades, radial leaf
Piece expansion shape is rectangle, there are the gap of 0.2mm between 2 radial blades, equidistant row at the top of each radial blade
16 differential trapezoid blades of cloth；The thickness of radial blade and top differential trapezoid blade is 0.1mm, and along its length
In circular arc camber, radial blade length of run is 10mm, and top differential trapezoid blade length of run is 30mm, each radial
Blade and the differential trapezoid blade at top are flared out 0 °, and the material of the differential trapezoid blade at radial blade and top is not
Become rusty steel；11 material of the cylindrical tube is stainless steel, internal diameter 30mm, length 50mm；Cylinder pipe internal surface does not spray/magnetron sputtering
Processing.
Embodiment two：Shown in Fig. 2 and Fig. 3, for the present invention is based on a kind of radial realities of electrospinning nozzle of differential trapezoid blade
Apply example --- to have 4 radial blades, top differential trapezoid blade quantity be 5, radial blade expansion shape be it is trapezoidal, to
The electrospinning nozzle that outer opening angle is 30 °, specially：The radial spinning nozzle 12 be located at the cylindrical tube 11 lower part (to
Lower spinneret), the radial spinning nozzle internal diameter and the cylinder bore are completely the same and be completely embedded smooth, it can be achieved that spinning
The accessible of fluid transports；The radial spinning nozzle 12 is made of circumferentially equally distributed 4 radial blades, radial
Mounted blade shape is trapezoidal, 5 differential trapezoid blades of equidistantly arranging at the top of each radial blade；Radial blade and top
The thickness of portion's differential trapezoid blade is 0.2mm, and planar along its length, length of run 4mm, each radial
Blade and the differential trapezoid blade at top are flared out 30 °, and the material of the differential trapezoid blade at radial blade and top is
Stainless steel；11 material of the cylindrical tube is stainless steel, internal diameter 1.6mm, length 5mm；Cylinder pipe internal surface sprays PTFE；It is radiating
The interface of shape 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 trapezoid blade
Example --- to have 4 radial blades, top differential trapezoid blade quantity be 3, radial blade expansion shape be polygon, to
The electrospinning nozzle that outer opening angle is 30 °, specially：The radial spinning nozzle 12 be located at the cylindrical tube 11 lower part (to
Lower spinneret), the radial spinning nozzle internal diameter and the cylinder bore are completely the same and be completely embedded smooth, it can be achieved that spinning
The accessible of fluid transports；The radial spinning nozzle 12 is made of circumferentially equally distributed 4 radial blades, radial
Mounted blade shape is polygon, 3 differential trapezoid blades of equidistantly arranging at the top of each radial blade；Radial blade and
The thickness of top differential trapezoid blade is 0.2mm, and planar along its length, length of run 4mm, each to radiate
Shape blade and the differential trapezoid blade at top are flared out 30 °, the material of the differential trapezoid blade at radial blade and top
For stainless steel；11 material of the cylindrical tube is stainless steel, internal diameter 1.6mm, length 5mm；Cylinder pipe internal surface sprays PTFE；It is putting
Penetrate the interface of shape 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 trapezoid blade to be received for scale
A kind of embodiment --- 7 radial linearly aligned electrostatic of electrospinning nozzle based on differential trapezoid blade when rice fiber production
Spinneret, wherein including 7 radial electrospinning nozzles based on differential trapezoid blade, the spacing of radial electrospinning nozzle is
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 trapezoid blade has putting for differential trapezoid blade by cylindrical tube and top
Penetrate shape spinning nozzle composition.The top have differential trapezoid blade radial spinning nozzle be located at the cylindrical tube top (to
When upper spinneret) or lower part (when downward spinneret), junction internal diameter is equal and be completely embedded, it is smooth, it can be achieved that electrospinning fluid nothing
Obstacle transports.
2. the radial electrospinning nozzle according to claim 1 based on differential trapezoid blade, it is characterised in that：The radiation
Shape spinning nozzle is composed of the circumferentially identical radial blade of equally distributed multiple structures, the expansion shape of radial blade
Shape can be rectangle, trapezoidal, polygon etc., and the top of each radial blade is equidistantly arranged multiple differential trapezoid blades, institute
The radial blade stated generally metal or part are metal material, differential the trapezoid blade generally metal material or office at top
Portion is metal material.
3. the radial electrospinning nozzle based on differential trapezoid blade according to claim 1-2, it is characterised in that：Described
Radial blade quantity is the positive integer more than or equal to 2, and the quantity of differential trapezoid blade is at the top of each radial blade
The differential trapezoid blade at the positive integer more than or equal to 2, the radial blade and top open outward it is angled,
Angular range with vertical direction is 0 °~90 ° (including 0 ° and 90 °).
4. the radial electrospinning nozzle based on differential trapezoid blade according to claim 1-3, it is characterised in that：Described
The thickness of radial blade is 0.1~10mm (including 0.1mm and 10mm), and the differential trapezoid blade thickness at top is no more than radiation
The thickness of shape blade.
5. the radial electrospinning nozzle based on differential trapezoid blade according to claim 1-4, it is characterised in that：Described
Radial blade is planar along its length or curved, and length of run along its length is 1~50mm (including 1mm
And 50mm), the differential trapezoid blade at top is planar along its length or curved, and length of run along its length is not
More than the length of run of radial blade along its length.
6. the radial electrospinning nozzle based on differential trapezoid blade according to claim 1-5, it is characterised in that：Described
The hollow circular-tube that cylindrical tube is whole or part is metal material is constituted, and round tube inside diameter is 1~30mm (including 1mm and 30mm), long
Degree and wall thickness are unlimited.
7. the radial electrospinning nozzle based on differential trapezoid blade according to claim 1-6, it is characterised in that：It can basis
The feature of polymer spinning solution system used carries out PTFE, Teflon TFE, Teflon 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. the radial electrospinning nozzle based on differential trapezoid blade according to claim 1-7, it is characterised in that：Described
The interface of radial blade and cylindrical tube may exist certain interval or gapless between radial blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799426.6A CN108707982A (en) | 2018-07-19 | 2018-07-19 | A kind of radial electrospinning nozzle based on differential trapezoid blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810799426.6A CN108707982A (en) | 2018-07-19 | 2018-07-19 | A kind of radial electrospinning nozzle based on differential trapezoid blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108707982A true CN108707982A (en) | 2018-10-26 |
Family
ID=63875176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810799426.6A Withdrawn CN108707982A (en) | 2018-07-19 | 2018-07-19 | A kind of radial electrospinning nozzle based on differential trapezoid blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108707982A (en) |
-
2018
- 2018-07-19 CN CN201810799426.6A patent/CN108707982A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103334163B (en) | Electrospinning spinnerets unit, electrospinning liquid filament forming device and electrostatic spinning machine | |
| CN203583021U (en) | Multi-spray-head auxiliary electrostatic spinning device with plate electrode | |
| CN103993376B (en) | A kind of electrostatic spinning apparatus for preparing bundles of nanofibers | |
| CN204570100U (en) | A kind of interchange electrostatic spinning apparatus | |
| CN103088443B (en) | Umbrella-shaped electrostatic spinning sprayer and electrostatic spinning method | |
| CN109208090A (en) | A kind of Novel needle electrostatic spinning apparatus and its spinning process | |
| CN103173873A (en) | Multiple spray-head combined type air-injection electrostatic spinning machine | |
| CN108893787A (en) | A kind of radial electrospinning nozzle based on differential polygon blade | |
| CN107366029A (en) | A kind of mass prepares the electrostatic spinning apparatus of nanofiber | |
| CN106757423A (en) | Vibration Multi-tip electrostatic spinning apparatus | |
| CN103334166B (en) | Electrospinning liquid filament forming device and electrostatic spinning machine | |
| CN203976994U (en) | A kind of electrostatic spinning apparatus of preparing bundles of nanofibers | |
| CN103088444B (en) | A kind of method and device improving the many jets of electrostatic spinning | |
| CN111286793A (en) | Multi-spiral-line electrostatic spinning device | |
| CN109023552A (en) | A kind of radial electrospinning nozzle based on differential diamond shape blade | |
| CN110273190B (en) | Open electrospinning nozzle based on annular uniform distribution multiple blades | |
| CN108866647A (en) | A kind of top is the horn-like electrospinning nozzle of differential trapezoid blade | |
| CN108707982A (en) | A kind of radial electrospinning nozzle based on differential trapezoid blade | |
| CN108707980A (en) | A kind of top is the horn-like electrospinning nozzle of differential polygon blade | |
| CN110512292B (en) | Radial electrospinning nozzle based on rectangular blades | |
| CN105088366B (en) | A kind of electrostatic spinning apparatus of batch micro operations nanofiber, method and system | |
| CN108893786A (en) | A kind of radial electrospinning nozzle based on differential rectangle blade | |
| CN108707981A (en) | A kind of top is the horn-like electrospinning nozzle of differential rectangle blade | |
| CN108691015A (en) | A kind of radial electrospinning nozzle based on differential triangular vane | |
| CN108866646A (en) | A kind of top is the horn-like electrospinning nozzle of differential diamond shape blade |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181026 |
|
| WW01 | Invention patent application withdrawn after publication |