CN108691015A - A kind of radial electrospinning nozzle based on differential triangular vane - Google Patents
A kind of radial electrospinning nozzle based on differential triangular vane Download PDFInfo
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- CN108691015A CN108691015A CN201810798905.6A CN201810798905A CN108691015A CN 108691015 A CN108691015 A CN 108691015A CN 201810798905 A CN201810798905 A CN 201810798905A CN 108691015 A CN108691015 A CN 108691015A
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- Prior art keywords
- radial
- triangular vane
- differential triangular
- differential
- spinning
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The present invention relates to a kind of radial electrospinning nozzle based on differential triangular vane, belongs to nanofiber preparing technical field, by cylindrical tube and top there is the radial spinning nozzle of differential triangular vane to constitute.Radial spinning nozzle is composed of the circumferentially identical radial blade of equally distributed multiple structures, it equidistantly arranges multiple differential triangular vanes 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 triangular vane 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 triangular vane 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 triangular vane,
Belong to 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.Multiple jets
in electrospinning:Experiment and modeling.Polymer, 2005,46 (9):2889-2899.], state
It is interior and also occur many similar patents in the world, such as 200420107832.5,201510278266.7, WO2007035011
Disclosed technology.Multi needle electrostatic spinning technique spinneret position is controllable, feeding liquid measure, controllable, spinning process is stablized, in yield
Have compared to single needle electrostatic spinning and greatly improve, but since there are Coulomb repulsions between each syringe needle, causes intermediate field strength
End effect (edge effect) phenomenon that small, both ends field strength is big and the spinning jet of both sides syringe needle deviates outward, causes
The problems such as web is irregular to both sides thickness from centre, in addition, conventional metals capillary needle bore is small, syringe needle easily blocks, and not
Easy to clean, 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, Lin Tong et al.;WANG X,NIU H,WANG X,
LIN T.Needleless electrospinning of uniform nanofibers using spiral coil
spinnerets[J].Journal of Nanomaterials,2012,2012(10):3-9.], the bubble of He Jihuan et al. it is quiet
Electricity Fang Sijishu [HE J H, LIU Y, XU L, et al.Biomimic fabrication of electrospun
nanofibers with high-throughput[J].Chaos, Solitons and Fractals, 2008,37:643-
651.]Deng.Compared with Multi needle electrostatic spinning technique, above-mentioned needle-less electrostatic spinning technique is with no blocking, easy to clean and life
Production efficiency such as greatly improves at the advantages.But there are still numerous common problems for such needle-less electrospinning process:Spinning emitter
It is mostly no tip-type face, and the area that pressurizes is big, to excite taylor cone to need higher voltage, so as to cause high energy consumption;Secondly,
Due to being that liquid surface freely recombinates to form injection stream, so position and state that taylor cone generates are uncontrollable, gained fiber is thick
Thin irregular, product quality is difficult to control;Hold in addition, the emitter of needle-less electrostatic spinning is immersed in greatly open spinning solution
In device (except second generation nanometer spider, but the dynamic normal spinning of influence of its fluid supplier Transverse), solvent is volatile, and solution concentration occurs
Change, it is unstable so as to cause spinning quality.The problem of for needle-less electrostatic spinning high energy consumption, there is researcher to propose base
In Shi Xinzhen [ZL201220297190.4], tip Shi [ZL201310186515.0], Ju Chishi [ZL201210347514.5]
There is tip, spinning critical voltage and energy consumption to be greatly lowered for equal electrostatic spinning techniques, such spinneret, still
There are still the problems that fiber quality caused by open feed flow is difficult to control.
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 differential triangle
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 high energy consumption, open feed flow is difficult to control.
The technical solution of present invention solution the technical problem is to provide a kind of based on the radial of differential triangular vane
Electrospinning nozzle by cylindrical tube and top there is the radial spinning nozzle of differential triangular vane 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 triangular vanes, 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 triangular vane of quantity, and the differential triangular vane quantity at top is just whole more than or equal to 2
Number;The thickness of radial blade is 0.1~10mm (including 0.1mm and 10mm), and the differential triangular vane thickness at top is little
In the thickness of radial blade;Radial blade is planar along its length or curved, and expansion along its length is grown
Degree is 1~50mm (including 1mm and 50mm), and the differential triangular vane at top is planar along its length or curved, and
Length of run along its length is 1~50mm (including 1mm and 50mm);The differential triangle 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
The hollow circular-tube that column tube is whole or part is metal material is constituted, 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 triangular vane, 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 triangular vane 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 triangular vane has pipe
Formula structure is not, it can be achieved that closed controllable feed flow, solvent be volatile;Radial electrospinning nozzle based on differential triangular vane it is micro-
Divide triangular vane 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 triangular vane 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 triangular vane --- there are 2 and put
Penetrate shape blade, top differential triangular vane quantity is 16, radial blade expansion shape is rectangle, is flared out angle 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 triangular vane --- there are 4 and put
Penetrate shape blade, top differential triangular vane quantity is 5, radial blade expansion shape is trapezoidal, is flared out angle is 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 triangular vane --- there are 4 and put
Penetrate shape blade, top differential triangular vane quantity is 5, radial blade expansion shape is trapezoidal, is flared out angle is 30 °
The front view and vertical view of electrospinning nozzle;
Fig. 4 is that the present invention is based on a kind of radial embodiments of electrospinning nozzle of differential triangular vane --- there are 4 and put
Penetrate shape blade, top differential triangular vane quantity is 3, radial blade expansion shape is polygon, is flared out angle is
The front view and vertical view of 30 ° of electrospinning nozzles;
Fig. 5 is when being produced for scale nanofiber the present invention is based on the radial electrospinning nozzle of differential triangular vane
A kind of embodiment --- 7 based on differential triangular vane radial electrospinning nozzle linear array arrangement electrostatic spinning
Head.
Specific implementation mode
The present invention provides a kind of radial electrospinning nozzle (referring to Fig. 1~5) based on differential triangular vane, by cylinder
There is the radial spinning nozzle 12 of differential triangular vane to be composed for pipe 11 and top.With reference to specific embodiment and its attached
Figure is further discussed below the present invention, and specific embodiment is only used for further illustrating the present invention, and does not constitute and is wanted 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 triangular vane
Example --- to have 2 radial blades, top differential triangular vane 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, there are the gap of 0.2mm between 2 radial blades, at the top of each radial blade equidistantly
16 differential triangular vanes of arrangement;The thickness of radial blade and top differential triangular vane is 0.1mm, and along length
It is in circular arc camber to spend direction, and radial blade length of run is 10mm, and top differential triangular vane length of run is 50mm, often
A radial blade and the differential triangular vane at top are flared out 0 °, the differential triangle leaf at radial blade and top
The material of piece is stainless steel;11 material of the 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 triangular vane one kind
Embodiment --- it is 5 to have 4 radial blades, top differential triangular vane quantity, 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 triangular vanes of equidistantly arranging at the top of each radial blade;It is radial
Blade and the thickness of top differential triangular vane are 0.2mm, and planar along its length, length of run 4mm,
Each radial blade and the differential triangular vane at top are flared out 30 °, the differential triangle at radial blade and top
The material of shape blade is stainless steel;11 material of the 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 triangular vane
Example --- to have 4 radial blades, top differential triangular vane 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
It is polygon to penetrate shape mounted blade shape, 3 differential triangular vanes of equidistantly arranging at the top of each radial blade;It is radial
Blade and the thickness of top differential triangular vane are 0.2mm, and planar along its length, length of run 4mm,
Each radial blade and the differential triangular vane at top are flared out 30 °, the differential triangle at radial blade and top
The material of shape blade is stainless steel;11 material of the 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 triangular vane to be used for scale
Nanofiber produce when a kind of embodiment --- 7 radial electrospinning nozzles based on differential triangular vane are linearly aligned
Electrostatic spinning head, wherein including 7 radial electrospinning nozzles based on differential triangular vane, the spacing of radial electrospinning nozzle
For 20mm.
Claims (8)
1. a kind of radial electrospinning nozzle based on differential triangular vane has differential triangular vane by cylindrical tube and top
Radial spinning nozzle constitute.There is the radial spinning nozzle of differential triangular vane 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 triangular vane, 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 triangle leaves
Piece, the radial blade generally metal or part are metal material, the differential triangular vane generally metal at top
Material or part are metal material.
3. the radial electrospinning nozzle based on differential triangular vane according to claim 1-2, it is characterised in that:It is described
Radial blade quantity be positive integer more than or equal to 2, the number of differential triangular vane at the top of each radial blade
Amount is positive integer more than or equal to 2, the differential triangular vane 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 based on differential triangular vane according to claim 1-3, it is characterised in that:It is described
The thickness of radial blade be 0.1~10mm (including 0.1mm and 10mm), the differential triangular vane thickness at top is not more than
The thickness of radial blade.
5. the radial electrospinning nozzle based on differential triangular vane according to claim 1-4, it is characterised in that:It is described
Radial blade is planar along its length or curved, and length of run along its length be 1~50mm (including
1mm and 50mm), the differential triangular vane at top is planar along its length or curved, and expansion along its length
Length is not more than the length of run of radial blade along its length.
6. the radial electrospinning nozzle based on differential triangular vane according to claim 1-5, it is characterised in that:It is described
Cylindrical tube it is whole or hollow circular-tube that part is metal material is constituted, round tube inside diameter is 1~30mm (including 1mm and 30mm),
Length and wall thickness are unlimited.
7. the radial electrospinning nozzle based on differential triangular vane according to claim 1-6, 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. the radial electrospinning nozzle based on differential triangular vane according to claim 1-7, 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 |
|---|---|---|---|
| CN201810798905.6A CN108691015A (en) | 2018-07-19 | 2018-07-19 | A kind of radial electrospinning nozzle based on differential triangular vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798905.6A CN108691015A (en) | 2018-07-19 | 2018-07-19 | A kind of radial electrospinning nozzle based on differential triangular vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108691015A true CN108691015A (en) | 2018-10-23 |
Family
ID=63850728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810798905.6A Withdrawn CN108691015A (en) | 2018-07-19 | 2018-07-19 | A kind of radial electrospinning nozzle based on differential triangular vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108691015A (en) |
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2018
- 2018-07-19 CN CN201810798905.6A patent/CN108691015A/en not_active Withdrawn
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|---|---|---|---|
| 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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181023 |