CN106048748B - A kind of electrostatic spinning apparatus - Google Patents
A kind of electrostatic spinning apparatus Download PDFInfo
- Publication number
- CN106048748B CN106048748B CN201610569503.XA CN201610569503A CN106048748B CN 106048748 B CN106048748 B CN 106048748B CN 201610569503 A CN201610569503 A CN 201610569503A CN 106048748 B CN106048748 B CN 106048748B
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- fixed plate
- bearing
- syringe needle
- spinning
- electrostatic 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
Abstract
The invention discloses a kind of electrostatic spinning apparatus, comprising fixed plate 6, regulation and control motor 3 are fixed in fixed plate 6, the output terminal of regulation and control motor 3 is equipped with shaft 4, and shaft 4 passes through the circular hole at 6 middle part of fixed plate, driving pulley 9 is set in shaft 4；6 left side of fixed plate is equipped with bearing 14, is fixed with driven pulley 13 on the outer ring of bearing 14, is driven between driving pulley 9 and driven pulley 13 by belt 8；The upper end of 14 inner ring of bearing is connected with liquid feeding device, the lower end of 14 inner ring of bearing is connected with connector 16, and connector 16 is connected with spinning syringe needle 12, and spinning syringe needle 12 is connected with high pressure generator 18, spinning syringe needle 12 is arranged right below roller collector 19, and roller collector 19 is connected with earthing pole；The three-dimensional porous fiber membrane support that device in the present invention is made has higher porosity, larger aperture and good interconnection, is conducive to the conveying and discharge of entrance, proliferation and the nutrient solution and metabolic object of cell.
Description
Technical field
The present invention relates to material processing field is belonged to, it is related to a kind of electrostatic spinning apparatus.
Background technology
In recent years, based on electrospinning device it is simple, using material category it is various, facilitate and prepare multicomponent composite wood
The excellent properties such as material and the nanofiber large specific surface area prepared, internal connectivity are good make it in biomedical, medicine
The fields such as object control delivery systme, Material cladding are modified, filtering and protection, organizational project obtain extensive concern and application.But by
It is closely knit in the nanofiber accumulation prepared, lead to that its aperture is smaller, and porosity is relatively low, limit it in adsorption filtration, medicine
The application in the fields such as object transmission, organizational project and bio-medical.The tissue engineering bracket manufactured using electrostatic spinning technique
Belong to two-dimensional structure for stricti jurise, but two-dimentional cell culture experiments can not analogue body inner cell completely three dimensional growth ring
Border, therefore, in vitro culture experimental data and the growing state of cell in vivo of gained will be deviated.In order to improve Static Spinning
Nanofiber membrane aperture, porosity and realization three-dimensional structure prepared by silk, some researchers, which propose to prepare, has canted coil knot
The nano fibrous membrane of structure.
At present, researchers do a lot of work, and make great efforts research and attempt to prepare the micro-/ nano with twisted spiral structure
The new method of fiber, and influence of the twisted spiral structure to nanofiber film properties is studied, but it is studied deep not enough.It is special
It is not still to know little about it to helical structure molding condition, fibre structure and property.Up to the present, can be used for preparing distortion spiral shell
The method of structure micro/nano-fibre is revolved than relatively limited.Simultaneously as what method of electrostatic spinning typically resulted in is Random fiber, make it
The micro/nano-fibre with apparent helical structure is not readily available, therefore develops and improves and prepare twisted spiral structure micro-/ nano
The new technology of fiber is a challenging research work.
At present, can be used for prepare the micro/nano-fibre with twisted spiral structure electrostatic spinning apparatus mainly have with
Lower two kinds：Typical electrostatic spinning apparatus and parallel type electrostatic spinning apparatus.
2006, M K shin etc. were poly- (2- acrylamides -2- methyl-1s-propane sulfonic acid) with single non-conductive polymeric
(PAMPS), using typical traditional electrostatic spinning apparatus, the nanofiber with twisted spiral structure has been prepared.Its principle
It is the kink instability of the physical force generated in electrostatic spinning course of injection, the formation of helical structure is produced very big
It influences.
2004, the ethanol solution of the single non-conductive polymeric polyvinylpyrrolidone (PVP) such as Jin Yuwei was original
Material has prepared the nanofiber with twisted spiral structure, and has had studied solution concentration and spinning voltage to fibre morphology
It influences, while the formation mechenism of spiral fiber is discussed, finally obtained the fibre bundle institute static electrification in spinning process
Coulomb repulsion between lotus is the direct driving force to form spiral fiber.
2006, R Kessick etc. were poly- to conduction high polymer (PASA) and non-conductive height with typical electrostatic spinning apparatus
The compound aqueous phase system of object (PEO) has carried out the research of Electrospun.The result shows that：Single_phase system (such as pure PEO) cannot form spiral shell
Structure is revolved, it is conductive to need a kind of component in compound phase system, otherwise cannot obtain helical structure.This helical structure
Be formed as high polymer fibre during electrostatic spinning with electrostatic charge, electrically charged type is depending on power supply just
Cathode, the mutual repulsion of like charges on fiber cause to generate coulomb extending force along in fibre length.During equilibrium state, electrostatic repulsion
Power balances each other with the viscoelastic restoring force on fiber.When high polymer fibre falls within conductive surface (receiver board), initial conduction PASA portions
Divide institute is electrically charged to be transferred, it has been more than coulomb repulsive force to shrink viscoelastic power, leads to discontinuity equalization, and fiber recurring structure is reset,
And Spontaneous Contraction is into helical structure.
2007, it is often quick wait select poly butylene succinate (PBS), polypropylene terephthalate (PTT), poly- pair
Benzene dicarboxylic acid butanediol ester (PBT) and polystyrene (PS) form blend solution with thermoplastic polyester elastomer (TPEE), use allusion quotation
The electrostatic spinning apparatus of type carries out electrostatic spinning and has obtained the micro/nano-fibre with twisted spiral structure.Its principle can be explained
For：By a kind of high polymer of high elongation at tear and a kind of high polymer co-blended spinning of low elongation at break, strand is in high-voltage electricity
Stretched off field by electric field force, due to the difference of the two elongation at break, generate it is different flexible, so as to which torsion of fibers be made to form spiral shell
Revolve structure.Two kinds of polymer fracture elongation differences are bigger, and the helical structure of formation is more apparent.
2014, G Chang etc. utilized typical electrostatic spinning apparatus, only added a negative electrode on the collector, will
Polyvinylpyrrolidone (PVP) and Cu (NO3)2Colloidal sol is mixed into, prepares the fiber of helical structure.
2005, king's instruction is such to utilize parallel type electrostatic spinning apparatus, is from same by two different polymer solutions
One spinning head sprays, and elastopolymer polyurethane (PU) and polyacrylonitrile (PAN) are dissolved in N, N- dimethyl by experimenter
In formamide (DMF), the nanofiber with twisted spiral structure has been prepared.
2008, J Yu etc. [7] utilized electrostatic spinning apparatus as shown in Figure 1, by adjusting collector position, make full use of
Gravitational field obtains remarkable progress in electrostatic spinning helical structure orientation.Fiber in air not only by gravity field action, also by
Electric field, fluid even magnetic fields.Polycaprolactone (PCL) is dissolved in N,N-dimethylformamide (DMF) and tetrahydrofuran (THF)
(DMF：THF=1:1) in the mixed solvent prepares the micro/nano-fibre of twisted spiral structure using Fig. 1 devices.In wherein Fig. 1
1 refer to that an one metal wire of 2mm is fixed in one of plank 2 wooden hole, 3 be inclined sheet glass for collecting canted coil
The nanofiber of structure tests the micro/nano-fibre that twisted spiral structure is obtained under conditions of 45 ° of θ ＜ and d1 ＜ 6cm.
2011, polystyrene (PS) was dissolved in n,N-Dimethylformamide (DMF) by S P Shariatpanahi etc.,
The micro/nano-fibre with twisted spiral structure has been obtained using device as shown in Figure 2.The device is filled with typical electrostatic spinning
Putting difference lies in high pressure is used between syringe and syringe needle, secondly making collector using flow.
2010, polyvinylpyrrolidone (PVP) was dissolved in ethyl alcohol by X Cui etc., is prepared using electrostatic spinning apparatus
The nanofiber of twisted spiral structure.The difference of the device and typical electrostatic spinning apparatus is：By spinning head and one block of metal
Plate welds together, and is made of between spinneret and rotating collector seven aluminium rings, simultaneously added with high pressure in aluminium ring.
2010, K Liu et al. improved electrostatic spinning classical model, and cerous nitrate/polyvinylpyrrolidone is successfully made
(PVP) and the micro-nano solenoidal structure fiber of the one pack system of polyvinyl alcohol (PVA).Using a kind of electrode nesting nozzle-hollow pinhead
Inner sleeve metal needle point adds small size circular collection pole (diameter is about 2.5cm), reduces collector size and concentrates electric field strength,
A large amount of helical structure fibers can continuously be prepared.Think that external factor can be detached from by forming helical structure, exist only in fiber shape
During.Fluid whip dynamic instability (helical propensity in microfluid air), electric field line the factors such as Curvature varying be spiral shell
The formation of rotation structural fibers provides enough conditions, thus in a very wide range (5~30kV of spinning voltage, spinning away from
From 5~100cm) fiber of twisted spiral structure is collected using not same material.Description of test umbrella electric field is distributed
The ideal electric field environment that helical structure is formed, so using needle point to dot electrode combination mode, control electric field distribution can obtain
Obtain ideal result.
2005, P D Dalton etc. prepared the nanofiber rope of twisted spiral structure using bicyclic collecting method, collected
Extremely bicyclic Parallel Symmetric is placed, and is acted on by electric field distribution, and the fiber sprayed from nozzle is between two rings, after spinning, one
Ring is static, rotates another ring, and the fiber between two rings is just wound in rope structure, can be by the way that the number of turns of rotation is controlled to be received to constrain
The form of rice rope.But this method is difficult to know to the number of fibre bundle internal fiber, and accidental sexual factor is more, complex steps.
It can be seen that at present from domestic and international present Research, although the side of various manufacture twisted spiral structure fibers
Method has been widely studied and has developed.But it is prepared so far still without a kind of simple technology easily realized with helical structure
Tunica fibrosa.Difference according to material conductivity or elongation at break is prepared for the tunica fibrosa of helical structure, there is
The shortcomings that optional material is limited, and the tunica fibrosa of compounding ingredients can only be prepared.For at present by being filled to typical electrostatic spinning
The improvement realization put is prepared for the micro/nano-fibre of twisted spiral structure, there is device complexity, cumbersome and post processing
The shortcomings of time is long.
For deficiencies of the prior art, the object of the present invention is to provide a kind of twisted spiral structure it is micro-/receive
Rice fiber membrane preparation device.Three-dimensional porous fiber membrane support prepared by the device has higher porosity, larger aperture and good
Interconnection, be conducive to the conveying and discharge of entrance, proliferation and the nutrient solution and metabolic object of cell.Simultaneously with it is natural
The similar helical structure of fibre structure makes it have stronger flexibility, its mechanical property of larger raising.The present invention's is another
A purpose is to provide a kind of preparation method of the three-dimensional spiral structural fibers stent, the preparation method have device it is simple,
It is easy to operate, using material category it is various the advantages that, become a kind of ideal processing and manufacturing three-dimensional spiral structural fibers
The method of stent.
Invention content
To solve the above problems, the present invention provides a kind of electrostatic spinning apparatus.
The present invention adopts the following technical scheme that realization：
A kind of electrostatic spinning apparatus comprising fixed plate 6, is fixed with regulation and control motor 3, regulates and controls the output of motor 3 in fixed plate 6
End is equipped with shaft 4, and shaft 4 passes through the circular hole at 6 middle part of fixed plate, driving pulley 9 is set in shaft 4；6 left side of fixed plate is set
There is bearing 14, driven pulley 13 is fixed on the outer ring of bearing 14, is driven between driving pulley 9 and driven pulley 13 by belt 8；
The upper end of 14 inner ring of bearing is connected with liquid feeding device, and the lower end of 14 inner ring of bearing is connected with connector 16, and connector 16 is connected with
Spinning syringe needle 12, spinning syringe needle 12 are connected with high pressure generator 18, and spinning syringe needle 12 is arranged right below roller collector 19, rolling
Cylinder collector 19 is connected with earthing pole；Regulate and control motor 3 during electrostatic spinning and drive driving pulley 9, driving pulley 9 passes through belt
8 driving driven pulleys 13, driven pulley 13 drive spinning syringe needle 12 to rotate, liquid feeding device remains stationary.
Further to improve, the liquid feeding device includes propeller 1, and propeller 1 is connected with syringe 2, and syringe 2 is connected with poly-
Tetrafluoroethene pipe 15, polyfluortetraethylene pipe 15 are connect with 14 inner ring upper end of bearing.
Further to improve, 6 lower section of fixed plate is connected with cushion block 5, and cushion block is connected with the second fixed plate 7, and second is solid
Fixed board 7 coordinates with fixed plate 6, fixes bearing 14, driving pulley 9 and driven pulley 13；The lower section of second fixed plate 7 is connected with the
Three fixed plates 10 are connected with the 4th fixed plate 11 in third fixed plate 10, and 10 and the 4th fixed plate 11 of third fixed plate coordinates, Gu
Surely spinning syringe needle 12 is lived.
The beneficial effects of the invention are as follows：
The three-dimensional porous fiber membrane support that device in the present invention is made has higher porosity, larger aperture and good
Interconnection is conducive to the conveying and discharge of entrance, proliferation and the nutrient solution and metabolic object of cell.Simultaneously with natural fibre
The similar helical structure of dimension structure makes it have stronger flexibility, its mechanical property of larger raising.Dress using the present invention
It puts and prepares three-dimensional porous fiber membrane support, have many advantages, such as that device is simple and convenient to operate, is various using material category, make it
As a kind of method of ideal processing and manufacturing three-dimensional spiral structural fibers stent.
Description of the drawings
Fig. 1 is the structure diagram of embodiment 1；
Fig. 2 is PVA fibers SEM figures made of embodiment (A is 1k times, and B is 3k times)；
Fig. 3 is solution jet body stress diagram during electrostatic spinning
Specific embodiment
Below in conjunction with attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described.
Embodiment 1：
A kind of electrostatic spinning apparatus as shown in Figure 1 comprising fixed plate 6, is fixed with regulation and control motor 3, regulation and control in fixed plate 6
The output terminal of motor 3 is equipped with shaft 4, and shaft 4 passes through the circular hole at 6 middle part of fixed plate, driving pulley 9 is set in shaft 4；Gu
6 left side of fixed board is equipped with bearing 14, is fixed with driven pulley 13 on the outer ring of bearing 14, leads between driving pulley 9 and driven pulley 13
Belt 8 is crossed to be driven；The upper end of 14 inner ring of bearing is connected with liquid feeding device, and the liquid feeding device includes propeller 1, and propeller 1 connects
Syringe 2 is connected to, syringe 2 is connected with polyfluortetraethylene pipe 15, and polyfluortetraethylene pipe 15 is connect with 14 inner ring upper end of bearing.Bearing 14
The lower end of inner ring is connected with connector 16, and connector 16 is connected with spinning syringe needle 12, spinning syringe needle 12 and 18 phase of high pressure generator
Even, spinning syringe needle 12 is arranged right below roller collector 19, and roller collector 19 is connected with earthing pole.Under the fixed plate 6
Side is connected with cushion block 5, and cushion block is connected with the second fixed plate 7, and the second fixed plate 7 coordinates with fixed plate 6, fixes bearing 14, master
Movable belt pulley 9 and driven pulley 13；The lower section of second fixed plate 7 is connected with third fixed plate 10, and the is connected in third fixed plate 10
Four fixed plates 11,10 and the 4th fixed plate 11 of third fixed plate coordinate, and fix spinning syringe needle 12.Regulate and control during electrostatic spinning
Motor 3 drives driving pulley 9, and driving pulley 9 drives driven pulley 13 by belt 8, and driven pulley 13 drives spinning syringe needle 12
Rotation, liquid feeding device remains stationary.
By taking polyvinyl alcohol (PVA) as an example, 5g polyvinyl alcohol (PVA) is dissolved in 20mL deionized waters, in 60 DEG C of water-baths
6h is vibrated, obtains 10% uniform (w/v) PVA spinning solutions.A certain amount of PVA spinning solutions is taken to use polytetrafluoro loaded in 10mL syringes
PVA solution is connected in rotating device upper end by vinyl hose (internal diameter 1.19mm).Syringe needle is connected with high-voltage generator, and with
Aluminium-foil paper overlays on roller collector as reception device.The feed rate of propeller is 1mL/h, spinning voltage 15kV, is received
Distance i.e. syringe needle is for 10cm with a distance from roller collector, and syringe needle is 23G (outer diameter=0.6mm, internal diameter=0.3mm), spinning temperature
Degree control is 50 DEG C.Relative humidity is 40%, and the rotating speed for regulating and controlling motor is 2000rpm, and roller collector rotating speed is 300rpm.
As shown in Figure 2, the PVA fibers with helical structure are obtained in embodiment.This is mainly due to such as attached drawing
Shown in 3, during traditional electrostatic spinning, the solution jet body in syringe needle is only by the surface tension (F of solutionst), promote
Thrust (the F of devicec), jet stream divides injection under the drawing force of high voltage electric field and generates fiber, and fiber is free under gravity
It falls and is collected.And in the present invention, during electrostatic spinning, the solution jet body in syringe needle is not only by Fst、Fc, also by syringe needle
Centripetal force (the F generated during rotationt), therefore the PVA fibers generated under the stretching action of high voltage electric field, by the same of gravity
When, by syringe needle rotate caused by torsional forces, under the action of torsional forces, PVA fibers is made to generate helical structure, and pass through rolling
Cylinder collector is collected, so as to generate orderly PVA helical structures.
Claims (3)
1. a kind of electrostatic spinning apparatus includes fixed plate (6), which is characterized in that regulation and control motor (3) is fixed in fixed plate (6),
The output terminal of regulation and control motor (3) is equipped with shaft (4), and shaft (4) is set with across the circular hole in the middle part of fixed plate (6), shaft on (4)
There is driving pulley (9)；Bearing (14) is equipped on the left of fixed plate (6), driven pulley (13) is fixed on the outer ring of bearing (14), it is main
It is driven between movable belt pulley (9) and driven pulley (13) by belt (8)；The upper end of bearing (14) inner ring is connected with liquid feeding device, axis
The lower end for holding (14) inner ring is connected with connector (16), and connector (16) is connected with spinning syringe needle (12), spinning syringe needle (12) with
High pressure generator (18) is connected, and spinning syringe needle (12) is arranged right below roller collector (19), and roller collector (19) is with connecing
Earth polar is connected；Regulate and control motor (3) driving driving pulley (9) during electrostatic spinning, driving pulley (9) is driven by belt (8)
Driven pulley (13), driven pulley (13) driving spinning syringe needle (12) rotate, liquid feeding device remains stationary.
2. a kind of electrostatic spinning apparatus as described in claim 1, which is characterized in that the liquid feeding device includes propeller (1),
Propeller (1) is connected with syringe (2), and syringe (2) is connected with polyfluortetraethylene pipe (15), polyfluortetraethylene pipe (15) and bearing
(14) inner ring upper end connects.
3. a kind of electrostatic spinning apparatus as described in claim 1, which is characterized in that be connected with pad below the fixed plate (6)
Block (5), cushion block are connected with the second fixed plate (7), and the second fixed plate (7) coordinates with fixed plate (6), fix bearing (14), master
Movable belt pulley (9) and driven pulley (13)；Third fixed plate (10), third fixed plate (10) are connected with below second fixed plate (7)
On be connected with the 4th fixed plate (11), spinning syringe needle (12) is fixed in third fixed plate (10) and the cooperation of the 4th fixed plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569503.XA CN106048748B (en) | 2016-07-19 | 2016-07-19 | A kind of electrostatic spinning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610569503.XA CN106048748B (en) | 2016-07-19 | 2016-07-19 | A kind of electrostatic spinning apparatus |
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| CN106048748A CN106048748A (en) | 2016-10-26 |
| CN106048748B true CN106048748B (en) | 2018-07-10 |
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| CN111441091A (en) * | 2020-04-16 | 2020-07-24 | 西北工业大学 | Electrospinning device for preparing large-aperture fiber material with fluffy structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101542025B (en) * | 2006-11-24 | 2011-04-27 | 松下电器产业株式会社 | Process and apparatus for producing nanofiber and polymer web |
| JP2008138316A (en) * | 2006-12-01 | 2008-06-19 | Teijin Ltd | Twisted yarn and method for producing twisted yarn |
| CN101857976B (en) * | 2010-05-19 | 2011-06-08 | 青岛大学 | Device for preparing nano fibers with ordered arrangement and cross structures |
| CN103409818B (en) * | 2013-07-16 | 2015-10-28 | 东华大学 | The multiple injector electrostatic spinning device that a kind of spinning environment is controlled |
| GB2529894A (en) * | 2014-09-08 | 2016-03-09 | Univ Tallinn Technology | Device and method for preparing a continuous nanofibrous yarn |
| CN204728007U (en) * | 2015-03-31 | 2015-10-28 | 上海云同纳米科技中心(普通合伙) | Rotating collector prepares electro-spun nanofiber yarn device |
| CN105177744A (en) * | 2015-10-10 | 2015-12-23 | 浙江理工大学 | Spinning device for preparation of micro-nanofibers |
| CN205874596U (en) * | 2016-07-19 | 2017-01-11 | 福建工程学院 | Electrostatic spinning device |
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