CN106048748A - Electrostatic spinning device - Google Patents
Electrostatic spinning device Download PDFInfo
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- CN106048748A CN106048748A CN201610569503.XA CN201610569503A CN106048748A CN 106048748 A CN106048748 A CN 106048748A CN 201610569503 A CN201610569503 A CN 201610569503A CN 106048748 A CN106048748 A CN 106048748A
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- fixed plate
- bearing
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
Disclosed in the invention is an electrostatic spinning device comprising a fixed plate 6. A regulation motor 3 is fixed on the fixed plate 6; a rotating shaft 4 is installed at the output terminal of the regulation motor 3 and passes through a circular hole in the middle of the fixed plate 6; and a driving belt wheel 9 sleeves the rotating shaft 4. A bearing 14 is arranged at the left side of the fixed plate 6; a driven belt wheel 13 is fixed on the outer ring of the bearing 14; and transmission between the driving belt wheel 9 and the driven belt wheel 13 is realized by a belt 8. A liquid delivering device is connected to the upper end of the inner ring of the bearing 14; a connector 16 is connected to the lower end of the inner ring of the bearing 14 and is connected with a spinning needle head 12; the spinning needle head 12 is connected with a high-voltage generator 18; and a roller collection unit 19 is arranged right below the spinning needle head 12 and is connected with a ground electrode. According to the invention, a three-dimensional porous fiber membrane support prepared by the device has advantages of high porosity, large aperture, and high mutual connectivity; and cell entrance and cell proliferation as well as conveying and discharging nutrient solution and metabolic products can be realized well.
Description
Technical field
The present invention relates to belong to material processing field, relate to a kind of electrostatic spinning apparatus.
Background technology
In recent years, simple based on electrospinning device, available material category is various, conveniently prepare multicomponent composite wood
The excellent properties such as the nanofiber specific surface area expected and prepare is big, internal connectivity is good so that it is at biomedical, medicine
Thing controls the field such as delivery systme, Material cladding is modified, filter and protect, organizational project and obtains extensive concern and application.But by
Piling up closely knit in the nanofiber prepared, cause its aperture less, porosity is relatively low, limits it at adsorption filtration, medicine
The application in the fields such as thing transmission, organizational project and bio-medical.Use the tissue engineering bracket that electrostatic spinning technique is manufactured
Belong to two-dimensional structure from the point of view of stricti jurise, but two dimension cell culture experiments can not the three dimensional growth ring of analogue body inner cell completely
Border, therefore, the In vitro culture experimental data of gained and cell growing state in vivo is by deviation.In order to improve Static Spinning
Silk preparation nanofiber membrane aperture, porosity and realize three dimensional structure, some researcheres propose preparation have canted coil knot
The nano fibrous membrane of structure.
At present, researchers do a lot of work, and make great efforts research and attempt preparing the micro-/ nano with twisted spiral structure
The new method of fiber, and study the twisted spiral structure impact on nanofiber film properties, but the most deep to its research.Special
It not that helical structure molding condition, fibre structure and character are still known little about it.Up to the present, it is possible to be used for preparing distortion spiral shell
The method ratio of rotation structure micro/nano-fibre is relatively limited.Simultaneously as what method of electrostatic spinning typically resulted in is Random fiber so that it is
It is not readily available the micro/nano-fibre with obvious helical structure, therefore develops and improve and prepare twisted spiral structure micro-/ nano
The new technique of fiber is a challenging research work.
At present, can be used to prepare the electrostatic spinning apparatus of the micro/nano-fibre with twisted spiral structure mainly have with
Lower two kinds: typical electrostatic spinning apparatus and parallel type electrostatic spinning apparatus.
2006, M K shin etc. was with single non-conductive polymeric poly-(2-acrylamide-2-methyl isophthalic acid-propane sulfonic acid)
(PAMPS), use the electrostatic spinning apparatus that typical case is traditional, prepared the nanofiber with twisted spiral structure.Its principle
Being the kink instability of the physical force produced in electrostatic spinning course of injection, the formation to helical structure creates the biggest
Impact.
2004, Jin Yuwei etc. was former with the ethanol solution of single non-conductive polymeric polyvinylpyrrolidone (PVP)
Material, has prepared the nanofiber with twisted spiral structure, and have studied solution concentration and spinning voltage to fibre morphology
Impact, is discussed the formation mechenism of spiral fiber simultaneously, has finally drawn fibre bundle institute static electrification in spinning process
Coulomb repulsion between lotus is the direct driving force forming spiral fiber.
2006, conduction high polymer (PASA) and non-conductive height were gathered by R Kessick etc. with typical electrostatic spinning apparatus
The Compound Water phase system of thing (PEO) has carried out the research of Electrospun.Result shows: single_phase system (such as pure PEO) can not form spiral shell
Rotation structure, needs a kind of component and has electric conductivity, otherwise can not obtain helical structure in compound phase system.This helical structure
Be formed as high polymer fibre during electrostatic spinning with electrostatic charge, charged kind depend on that power supply is just
Negative pole, the mutual repulsion of like charges on fiber causes producing coulomb extending force 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 (reception plate), initially conduction PASA portion
Point institute electrically charged is transferred, and shrinks viscoelastic power and has exceeded coulomb repulsive force, causes discontinuity equalization, and fiber recurring structure is reset,
And Spontaneous Contraction becomes helical structure.
2007, Chang Min etc. selected poly butylene succinate (PBS), PTT (PTT), poly-right
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 the micro/nano-fibre that electrostatic spinning has obtained having twisted spiral structure.Its principle is soluble
For: by high polymer and the high polymer co-blended spinning of a kind of low elongation at break of a kind of high elongation at tear, strand is at high-tension electricity
Stretched by electric field force after the match, due to the difference of both elongation at breaks, produce different stretching, so that torsion of fibers forms spiral shell
Rotation structure.Two kinds of polymer fracture percentage elongation differences are the biggest, and the helical structure of formation is the most obvious.
2014, G Chang etc. utilized typical electrostatic spinning apparatus, simply added a negative electrode on the collector, will
Polyvinylpyrrolidone (PVP) and Cu (NO3)2It is mixed into colloidal sol, prepares the fiber of helical structure.
2005, king instructed such parallel type electrostatic spinning apparatus that utilizes, and was i.e. from same by two kinds of different polymer solutions
One spinning head ejection, elastopolymer polyurethane (PU) and polyacrylonitrile (PAN) are dissolved in N, N-dimethyl by its experimenter
In Methanamide (DMF), prepare the nanofiber with twisted spiral structure.
2008, J Yu etc. [7] utilized electrostatic spinning apparatus as shown in Figure 1, by adjusting collector position, made full use of
Gravitational field, obtains remarkable progress in electrostatic spinning helical structure orientation.Fiber the most not only by gravitational field effect, is also subject to
Electric field, fluid even the action of a magnetic field.Polycaprolactone (PCL) is dissolved in N,N-dimethylformamide (DMF) and oxolane (THF)
(DMF:THF=1:1), in mixed solvent, Fig. 1 device is utilized to prepare the micro/nano-fibre of twisted spiral structure.Wherein Fig. 1
In 1 refer to that an one metal wire of 2mm is fixed in a wooden hole of plank 2,3 is that the sheet glass tilted is for collecting distortion spiral shell
The nanofiber of rotation structure, tests the micro-/ nano fibre obtaining twisted spiral structure under conditions of θ ＜ 45 ° and d1 ＜ 6cm
Dimension.
2011, polystyrene (PS) was dissolved in DMF (DMF) by S P Shariatpanahi etc.,
Device as shown in Figure 2 is utilized to obtain the micro/nano-fibre with twisted spiral structure.This device fills with typical electrostatic spinning
The difference put is that high pressure is to be used between syringe and syringe needle, next to that utilize current to do catcher.
2010, polyvinylpyrrolidone (PVP) was dissolved in ethanol by X Cui etc., utilizes electrostatic spinning apparatus to prepare
The nanofiber of twisted spiral structure.This device with the difference of typical electrostatic spinning apparatus is: by nugget to spinning head and one genus
Plate welds together, and is made up of seven aluminum rings between spinneret and rotating collector, simultaneously added with high pressure on aluminum ring.
2010, K Liu etc. improved electrostatic spinning classical model, successfully prepares cerous nitrate/polyvinylpyrrolidone
And the one pack system micro-nano solenoid shape fiber of polyvinyl alcohol (PVA) (PVP).Use a kind of electrode nesting shower 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 intensity,
Just a large amount of helical structure fiber can be prepared continuously.Think that formation helical structure can depart from external factor, exist only in fiber shape
During one-tenth.The factors such as fluid whip dynamic instability (helical propensity in microfluid air), electric field curvature of a curve change are spiral shell
The formation of rotation structural fibers provides enough conditions, therefore in a scope the widest (spinning voltage 5～30kV, spinning away from
From 5～100cm) use not same material all can collect the fiber of twisted spiral structure.Description of test umbrella Electric Field Distribution is
The ideal electric field environment that helical structure is formed, so using needle point to round dot combination of electrodes mode, controlling Electric Field Distribution, can obtain
Obtain preferable result.
2005, P D Dalton etc. used dicyclo collecting method to prepare the nanofiber rope of twisted spiral structure, collects
Pole dicyclo Parallel Symmetric is placed, by Electric Field Distribution effect, from the fiber of shower nozzle ejection between two rings, after spinning terminates, one
Ring is static, rotates another ring, and the fiber between two rings is just wound in rope structure, can be retrained by the number of turns that control rotates and receive
The form of rice rope.But the number of fibre bundle internal fiber is difficult to know by the method, occasionality many factors, complex steps.
From domestic and international present Research it can be seen that at present, although the side of various manufacture twisted spiral structure fibers
Method has been widely studied and has developed.But, still without a kind of simple technology preparation easily realized, there is helical structure so far
Fibrous membrane.For prepare the fibrous membrane of helical structure according to the difference of material conductivity or elongation at break, also exist
Can the limited shortcoming of material selection, and the fibrous membrane of compounding ingredients can only be prepared.For at present by typical electrostatic spinning is filled
For the micro/nano-fibre of twisted spiral structure is prepared in the improvement realization put, there is device complicated, complex operation and post processing
The shortcomings such as time length.
For deficiencies of the prior art, it is an object of the invention to provide a kind of twisted spiral structure micro-/receive
Rice fibrous membrane preparation facilities.Three-dimensional porous fibrous membrane support prepared by this device has higher porosity, larger aperture and good
Interconnection, the beneficially entrance of cell, propagation and nutritional solution and the conveying of metabolism thing and discharge.Simultaneously with natural
The helical structure that fibre structure is similar to makes it have stronger flexibility, its mechanical property of bigger raising.Another of the present invention
Individual purpose is to provide the preparation method of a kind of described three-dimensional spiral structural fibers support, this preparation method have device simple,
The advantages such as easy to operate, available material category is various so that it is become a kind of preferably processing and manufacturing three-dimensional spiral structural fibers
The method of support.
Summary of the invention
For solving the problems referred to above, the invention provides a kind of electrostatic spinning apparatus.
The present invention adopts the following technical scheme that realization:
A kind of electrostatic spinning apparatus, comprises fixed plate 6, and fixed plate 6 is fixed with regulation and control motor 3, the output of regulation and control motor 3
End is provided with rotating shaft 4, and rotating shaft 4 passes the circular hole in the middle part of fixed plate 6, rotating shaft 4 is set with driving pulley 9；Set on the left of fixed plate 6
There is bearing 14, the outer ring of bearing 14 is fixed with driven pulley 13, by belt 8 transmission between driving pulley 9 and driven pulley 13；
The upper end of bearing 14 inner ring connects liquid feeding device, and the lower end of bearing 14 inner ring connects adapter 16, and adapter 16 connects to be had
Spinning syringe needle 12, spinning syringe needle 12 is connected with high tension generator 18, spinning syringe needle 12 be arranged right below cylinder catcher 19, rolling
Cylinder catcher 19 is connected with earthing pole；Regulating and controlling motor 3 during electrostatic spinning drives driving pulley 9, driving pulley 9 to pass through belt
8 drive driven pulley 13, and driven pulley 13 drives spinning syringe needle 12 to rotate, and liquid feeding device keeps static.
Further improving, described liquid feeding device includes propeller 1, and propeller 1 connects syringe 2, and syringe 2 connection has poly-
Tetrafluoroethene pipe 15, polyfluortetraethylene pipe 15 is connected with bearing 14 inner ring upper end.
Further improving, connecting below described fixed plate 6 has cushion block 5, and money advanced for somebody to be paid back later connection has the second fixed plate 7, and second is solid
Determine plate 7 to coordinate with fixed plate 6, fix bearing 14, driving pulley 9 and driven pulley 13；Connect below second fixed plate 7 and have the
Three fixed plates 10, the 3rd fixed plate 10 connect and have the 4th fixed plate 11, and the 3rd fixed plate 10 and the 4th fixed plate 11 coordinate, Gu
Surely spinning syringe needle 12 is lived.
The invention has the beneficial effects as follows:
The three-dimensional porous fibrous membrane support that device in the present invention is made has higher porosity, larger aperture and good
The entrance of interconnection, beneficially cell, propagation and nutritional solution and the conveying of metabolism thing and discharge.Simultaneously with natural
The helical structure that fibre structure is similar to makes it have stronger flexibility, its mechanical property of bigger raising.Use the present invention's
Device prepares three-dimensional porous fibrous membrane support, has the advantages such as device is simple and convenient to operate, available material category is various, makes
It becomes a kind of method of preferable processing and manufacturing three-dimensional spiral structural fibers support.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is that the PVA fiber SEM that embodiment is made schemes (A is 1k times, and B is 3k times)；
Fig. 3 is solution jet body stress schematic diagram during electrostatic spinning
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical scheme 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, comprises fixed plate 6, and fixed plate 6 is fixed with regulation and control motor 3, regulation and control
The outfan of motor 3 is provided with rotating shaft 4, and rotating shaft 4 passes the circular hole in the middle part of fixed plate 6, rotating shaft 4 is set with driving pulley 9；Gu
Determine to be provided with on the left of plate 6 bearing 14, the outer ring of bearing 14 is fixed with driven pulley 13, logical between driving pulley 9 and driven pulley 13
Cross belt 8 transmission；The upper end of bearing 14 inner ring connects has liquid feeding device, described liquid feeding device to include propeller 1, and propeller 1 is even
Being connected to syringe 2, syringe 2 connects has polyfluortetraethylene pipe 15, polyfluortetraethylene pipe 15 to be connected with bearing 14 inner ring upper end.Bearing 14
The lower end of inner ring connects adapter 16, and adapter 16 connects spinning syringe needle 12, spinning syringe needle 12 and high tension generator 18 phase
Even, spinning syringe needle 12 be arranged right below cylinder catcher 19, cylinder catcher 19 is connected with earthing pole.Described fixed plate 6 times
Side connects cushion block 5, and money advanced for somebody to be paid back later connection has the second fixed plate 7, the second fixed plate 7 to coordinate with fixed plate 6, fixes bearing 14, master
Movable belt pulley 9 and driven pulley 13；Connecting below second fixed plate 7 and have the 3rd fixed plate 10, the 3rd fixed plate 10 connects the
Four fixed plates 11, the 3rd fixed plate 10 and the 4th fixed plate 11 coordinate, and fix spinning syringe needle 12.Regulate and control during electrostatic spinning
Motor 3 drives driving pulley 9, driving pulley 9 to drive driven pulley 13, driven pulley 13 to drive spinning syringe needle 12 by belt 8
Rotating, liquid feeding device keeps static.
As a example by polyvinyl alcohol (PVA), 5g polyvinyl alcohol (PVA) is dissolved in 20mL deionized water, in 60 DEG C of water-baths
Vibration 6h, obtains homogeneous 10% (w/v) PVA spinning liquid.Take a certain amount of PVA spinning liquid to be loaded in 10mL syringe, use polytetrafluoro
PVA solution is connected in rotary apparatus upper end by vinyl hose (internal diameter is 1.19mm).Syringe needle is connected with high-voltage generator, and with
Aluminium-foil paper overlays on cylinder catcher as receiving device.Angle of rake feed rate is 1mL/h, and spinning voltage is 15kV, receives
Distance i.e. syringe needle is 10cm from the distance of cylinder catcher, and syringe needle is 23G (external diameter=0.6mm, internal diameter=0.3mm), spinning temperature
Degree control is 50 DEG C.Relative humidity is 40%, and the rotating speed of regulation and control motor is 2000rpm, and cylinder catcher rotating speed is 300rpm.
As shown in Figure 2, obtain in an embodiment there is the PVA fiber of helical structure.This mainly due to, such as accompanying drawing
Shown in 3, during traditional electrostatic spinning, the solution jet body in syringe needle is only by the surface tension (F of solutionst), advance
Thrust (the F of devicec), jet divides injection under the tensile force of high voltage electric field and produces fiber, and fiber is under gravity freely
Fall and be 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 produced during rotationt), the PVA fiber therefore produced under the stretching action of high voltage electric field, by gravity
Meanwhile, rotated produced torsional forces by syringe needle, under the effect of torsional forces, make PVA fiber produce helical structure, and pass through
Cylinder catcher is collected, thus produces orderly PVA helical structure.
Claims (3)
1. an electrostatic spinning apparatus, comprises fixed plate (6), it is characterised in that be fixed with regulation and control motor (3) in fixed plate (6),
The outfan of regulation and control motor (3) is provided with rotating shaft (4), and rotating shaft (4) is through the circular hole at fixed plate (6) middle part, and rotating shaft (4) is upper to be set with
There is driving pulley (9)；Fixed plate (6) left side is provided with bearing (14), and the outer ring of bearing (14) is fixed with driven pulley (13), main
By belt (8) transmission between movable belt pulley (9) and driven pulley (13)；The upper end of bearing (14) inner ring connects liquid feeding device, axle
Holding the lower end of (14) inner ring to connect and have an adapter (16), adapter (16) connects spinning syringe needle (12), spinning syringe needle (12) with
High tension generator (18) is connected, spinning syringe needle (12) be arranged right below cylinder catcher (19), cylinder catcher (19) with connect
Earth polar is connected；Regulating and controlling motor (3) during electrostatic spinning and drive driving pulley (9), driving pulley (9) is driven by belt (8)
Driven pulley (13), driven pulley (13) drives spinning syringe needle (12) to rotate, and liquid feeding device keeps static.
2. a kind of electrostatic spinning apparatus as claimed in claim 1, it is characterised in that described liquid feeding device includes propeller (1),
Propeller (1) connects syringe (2), and syringe (2) connects polyfluortetraethylene pipe (15), polyfluortetraethylene pipe (15) and bearing
(14) inner ring upper end connects.
3. a kind of electrostatic spinning apparatus as claimed in claim 1, it is characterised in that described fixed plate (6) lower section connects pad
Block (5), money advanced for somebody to be paid back later connection has the second fixed plate (7), the second fixed plate (7) to coordinate with fixed plate (6), fixes bearing (14), master
Movable belt pulley (9) and driven pulley (13)；Second fixed plate (7) lower section connects the 3rd fixed plate (10), the 3rd fixed plate (10)
Upper connection has the 4th fixed plate (11), the 3rd fixed plate (10) and the 4th fixed plate (11) to coordinate, and fixes spinning syringe needle (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610569503.XA CN106048748B (en) | 2016-07-19 | 2016-07-19 | A kind of electrostatic spinning apparatus |
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| 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 true CN106048748A (en) | 2016-10-26 |
| CN106048748B CN106048748B (en) | 2018-07-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN105177744A (en) * | 2015-10-10 | 2015-12-23 | 浙江理工大学 | Spinning device for preparation of micro-nanofibers |
| WO2016038539A1 (en) * | 2014-09-08 | 2016-03-17 | Tallinn University Of Technology | Device and method for preparing continuous nanofibrous yarns and bundles from electrospun fibers and fibrils |
| CN205874596U (en) * | 2016-07-19 | 2017-01-11 | 福建工程学院 | Electrostatic spinning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101542025A (en) * | 2006-11-24 | 2009-09-23 | 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 |
| CN101857976A (en) * | 2010-05-19 | 2010-10-13 | 青岛大学 | Device for preparing nano fibers with ordered arrangement and cross structures |
| CN103409818A (en) * | 2013-07-16 | 2013-11-27 | 东华大学 | Multi-spraying-nozzle electrostatic spinning device with controllable spinning environment |
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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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