CN108707980A - A kind of top is the horn-like electrospinning nozzle of differential polygon blade - Google Patents
A kind of top is the horn-like electrospinning nozzle of differential polygon blade Download PDFInfo
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- CN108707980A CN108707980A CN201810798016.XA CN201810798016A CN108707980A CN 108707980 A CN108707980 A CN 108707980A CN 201810798016 A CN201810798016 A CN 201810798016A CN 108707980 A CN108707980 A CN 108707980A
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- differential
- horn
- polygon blade
- polygon
- blade
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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 the horn-like electrospinning nozzles that a kind of top is differential polygon blade, belong to nanofiber preparing technical field, are made of cylindrical tube, horn mouth and differential polygon blade.Differential polygon blade is circumferentially uniformly distributed at the top of bell-mouthed big mouth, and horn mouth is located at the top or lower part of cylindrical tube, and bell-mouthed osculum is equal with the internal diameter of cylindrical tube junction and is completely embedded, is smooth, it can be achieved that the accessible of spin fluid transports.Top of the present invention is that the horn-like electrospinning nozzle inside diameter of differential polygon blade is big, is conducive to avoid syringe needle blockage problem, can carry out electrospinning to high concentration spinning solution；Differential polygon blade at the top of horn-like spinning nozzle plays the role of stable droplet, while increasing spinneret liquid level area, can generate multiple spinning jets, increases spinning yield；Its tubular structure can realize that closed controllable feed flow, solvent be not volatile；Differential polygon blade at the top of horn mouth has 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 top is that the horn-like electrospinning of differential polygon blade is sprayed
Mouth belongs 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, it is that differential is polygon the technical problem to be solved by the invention is to provide a kind of top
The horn-like electrospinning nozzle of shape blade solves the blocking of conventional capillary needle tube type electrostatic spinning apparatus syringe needle, inconvenient cleaning and nothing
The problems such as fiber quality caused by syringe needle 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 the loudspeaker that a kind of top is differential polygon blade
Shape electrospinning nozzle is made of cylindrical tube, horn mouth and differential polygon blade.The differential polygon blade circumferentially uniformly divides
Be distributed at the top of the bell-mouthed big mouth, the horn mouth be located at the cylindrical tube top (when upward spinneret) or lower part (to
When lower spinneret), the bell-mouthed osculum is equal with the internal diameter of cylindrical tube junction, and be completely embedded, it is smooth, it can be achieved that
The accessible of spin fluid transports；The shape of the differential polygon blade is rectangle, the tip of the differential polygon blade
It position can be with chamfering or fillet；The quantity of the differential polygon blade is the positive integer more than or equal to 2；The differential polygon
The thickness of blade is 0.1~10mm (including 0.1mm and 10mm)；The differential polygon blade it is planar along its length or
Curved, and length of run along its length is 1~50mm (including 1mm and 50mm)；The differential polygon blade to
Outside opening is angled, and the angular range with vertical direction is 0 °~90 ° (including 0 ° and 90 °)；The loudspeaker open height
For 0.1~100mm (including 0.1mm and 100mm), cone angle is 0 °~90 ° (not including 0 ° and 90 °), and wall thickness is 0.1~10mm
(including 0.1mm and 10mm)；The cylinder bore is 1~30mm (including 1mm and 30mm), and length and wall thickness are unlimited；According to
The feature of polymer spinning solution system used can carry 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；The differential polygon blade and institute
Bell-mouthed interface is stated, may exist certain interval or gapless between the differential polygon blade；The top is micro-
Divide the horn-like electrospinning nozzle inside diameter of polygon blade big, is not easy to plug, is suitable for the polymer spinning solution body to high concentration
System carries out electrostatic spinning, and 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, the top of the present invention that is based on is differential polygon
The horn-like electrospinning nozzle inside diameter of blade is big, is conducive to avoid syringe needle blockage problem, can be molten to the polymer spinning of high concentration
Liquid system carries out electrospinning；Differential polygon blade at the top of horn mouth increases the interface between spinning nozzle and spinning solution
Power can grip drop for a long time, there is stable droplet, meanwhile, horn mouth increases spinneret liquid level area, is formed certainly
By liquid surface, multiple taylor cones can be excited to generate multiple spinning jets, be conducive to increase spinning yield；Based on top
Have tubular structure, it can be achieved that closed controllable feed flow, solvent be not volatile for the horn-like electrospinning nozzle of differential polygon blade；
Differential polygon blade at the top of horn mouth has tip, can be generated under identical voltage higher electrostatic field force, reduce it is quiet
Electrospun energy consumption；In addition, high direct voltage or exchange can be applied based on the horn-like electrospinning nozzle that top is differential polygon blade
High pressure.
Description of the drawings
Fig. 1 is horn-like a kind of embodiment of electrospinning nozzle that present invention top is differential polygon blade --- there are 2
Differential polygon blade, differential polygon blade are flared out the electrospinning nozzle arrangements that angle is 0 °, horn mouth cone angle is 30 ° and show
It is intended to；
Fig. 2 is horn-like a kind of embodiment of electrospinning nozzle that present invention top is differential polygon blade --- there are 6
Differential polygon blade, differential polygon blade are flared out the electrospinning nozzle arrangements that angle is 45 °, horn mouth cone angle is 45 °
Schematic diagram；
Fig. 3 is horn-like a kind of embodiment of electrospinning nozzle that present invention top is differential polygon blade --- there are 6
Differential polygon blade, differential polygon blade are flared out the master for the electrospinning nozzle that angle is 45 °, horn mouth cone angle is 45 °
View and vertical view；
Fig. 4 is that the horn-like electrospinning nozzle that present invention top is differential polygon blade is produced for scale nanofiber
When a kind of embodiment --- 7 top be differential polygon blade horn-like electrospinning nozzle linear array arrange Static Spinning
Silk head.
Specific implementation mode
The present invention provides the horn-like electrospinning nozzles (referring to Fig. 1~4) that a kind of top is differential polygon blade, by justifying
The differential polygon blade 13 at 12 top of column tube 11, horn mouth 12 and horn mouth is composed.With reference to specific embodiment and
Its attached drawing 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 weighed to the present patent application
The limitation that profit requires.
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 --- there are 2 differential polygon blades, differential polygon blade to be flared out, and angle is 0 °, horn mouth cone angle is 30 °
Electrospinning nozzle, specially：The quantity of the differential polygon blade 13 is 2, is circumferentially uniformly distributed in the horn mouth 12
At the top of big mouth, the horn mouth 12 is located at the top (upward spinneret) of the cylindrical tube 11, the horn mouth 12 and the cylinder
The internal diameter of 11 junction of pipe is equal, and is completely embedded, is smooth, it can be achieved that the accessible of spin fluid transports；The cylindrical tube 11
Internal diameter 1.6mm, length 5mm, wall thickness 0.2mm；12 height of the horn mouth is 2mm, and cone angle is 30 °, wall thickness 0.2mm；
The differential polygon blade 13 is rectangle, and number 2 is opened angled outward, and the angle with vertical direction is 0 °,
Thickness is 0.2mm, is in arc surfaced along its length, and length of run along its length is 3mm；The differential polygon blade
13 circumference uniform distributions are in 12 top of the horn mouth；13 inner surface of the cylindrical tube sprays PTFE；In the differential polygon blade
11 and the horn mouth 12 interface, there are the gaps 0.2mm between the differential polygon blade 11.
Embodiment two：Shown in Fig. 2 and Fig. 3, for the present invention is based on the one of the radial electrospinning nozzle of differential polygon blade
Kind embodiment --- it is 45 °, horn mouth cone angle that there are 6 differential polygon blades, differential polygon blade, which to be flared out angle,
For 45 ° of electrospinning nozzle, specially：The horn mouth 12 is located at the lower part (downward spinneret) of the cylindrical tube 11, the loudspeaker
Mouthfuls 12 equal with the internal diameter of 11 junction of the cylindrical tube, and be completely embedded, it is smooth, it can be achieved that spin fluid it is accessible defeated
Fortune；The differential polygon blade 13 is circumferentially uniformly distributed in 12 top of the horn mouth；The internal diameter of the cylindrical tube 11
1.6mm, length 5mm, wall thickness 0.2mm；12 height of the horn mouth is 2mm, and cone angle is 45 °, wall thickness 0.2mm；It is described micro-
Point polygon blade 11 is rectangle, number 6, opens outward angled, and the angle with vertical direction is 45 °, thickness
It is planar along its length for 0.2mm, and length of run along its length is 3mm；13 inner surface of the cylindrical tube is not made
Spraying/magnetron sputtering processing, in the interface of the differential polygon blade 11 and the horn mouth 12, the differential polygon
There are the gaps 0.5mm between blade 11.
Embodiment three：It is that the horn-like electrospinning nozzle that top of the invention is differential polygon blade is used for scale shown in Fig. 4
A kind of embodiment when changing nanofiber production --- 7 tops are the horn-like electrospinning nozzle line array of differential polygon blade
The electrostatic spinning head of arrangement is arranged, wherein comprising the horn-like electrospinning nozzle that 7 tops are differential polygon blade, horn-like electrospinning
The spacing of nozzle is 20mm.
Claims (9)
1. a kind of top is the horn-like electrospinning nozzle of differential polygon blade, by cylindrical tube, horn mouth and differential polygon leaf
Piece forms, and the differential polygon blade is circumferentially uniformly distributed at the top of the bell-mouthed big mouth, and the horn mouth is located at
The top or lower part of the cylindrical tube, the bell-mouthed osculum is equal with the internal diameter of cylindrical tube junction and connection is tight
It is close, smooth, it can be achieved that the accessible of spin fluid transports.
2. top according to claim 1 is the horn-like electrospinning nozzle of differential polygon blade, it is characterised in that：It is described
The quantity of differential polygon blade is the positive integer more than or equal to 2.
3. the top according to claim 1-2 is the horn-like electrospinning nozzle of differential polygon blade, it is characterised in that：Institute
The thickness for stating differential polygon blade is 0.1~10mm (including 0.1mm and 10mm).
4. the top according to claim 1-3 is the horn-like electrospinning nozzle of differential polygon blade, it is characterised in that：Institute
State that differential polygon blade is planar along its length or curved, and length of run along its length is 1~50mm (packets
Include 1mm and 50mm).
5. the top according to claim 1-4 is the horn-like electrospinning nozzle of differential polygon blade, it is characterised in that：Institute
State differential polygon blade open outward it is angled, with the angular range of vertical direction be 0 °~90 ° (including 0 ° and
90°)。
6. the top according to claim 1-5 is the horn-like electrospinning nozzle of differential polygon blade, it is characterised in that：Institute
It is 0.1~100mm (including 0.1mm and 100mm) to state loudspeaker open height, and cone angle is 0 °~90 ° (not including 0 ° and 90 °), wall thickness
For 0.1~10mm (including 0.1mm and 10mm).
7. the top according to claim 1-6 is the horn-like electrospinning nozzle of differential polygon blade, it is characterised in that：Institute
It is 1~30mm (including 1mm and 30mm) that state cylindrical tube, which be internal diameter, and length and wall thickness are unlimited.
8. the top according to claim 1-7 is the horn-like electrospinning nozzle of differential polygon blade, it is characterised in that：Root
According to the feature of polymer spinning solution system used, 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.
9. the top according to claim 1-8 is the horn-like electrospinning nozzle of differential polygon blade, it is characterised in that：Institute
State differential polygon blade and the bell-mouthed interface, between the differential polygon blade there may be certain interval or
Gapless.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798016.XA CN108707980A (en) | 2018-07-19 | 2018-07-19 | A kind of top is the horn-like electrospinning nozzle of differential polygon blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810798016.XA CN108707980A (en) | 2018-07-19 | 2018-07-19 | A kind of top is the horn-like electrospinning nozzle of differential polygon blade |
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| Publication Number | Publication Date |
|---|---|
| CN108707980A true CN108707980A (en) | 2018-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810798016.XA Withdrawn CN108707980A (en) | 2018-07-19 | 2018-07-19 | A kind of top is the horn-like electrospinning nozzle of differential polygon blade |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853056A (en) * | 2019-04-10 | 2019-06-07 | 天津工业大学 | A kind of auxiliary electrode roller type electrospinning device |
-
2018
- 2018-07-19 CN CN201810798016.XA patent/CN108707980A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853056A (en) * | 2019-04-10 | 2019-06-07 | 天津工业大学 | A kind of auxiliary electrode roller type electrospinning device |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181026 |
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| WW01 | Invention patent application withdrawn after publication |