CN109402747A - A kind of netted bitubular cylindrical static electric spinning device and method - Google Patents
A kind of netted bitubular cylindrical static electric spinning device and method Download PDFInfo
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- CN109402747A CN109402747A CN201811646560.9A CN201811646560A CN109402747A CN 109402747 A CN109402747 A CN 109402747A CN 201811646560 A CN201811646560 A CN 201811646560A CN 109402747 A CN109402747 A CN 109402747A
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- cylindrical
- netted
- liquid feed
- spray head
- feed device
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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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a kind of netted bitubular cylindrical static electric spinning device and methods.Described device sets the cylindrical liquid feed device (2) by cylindrical spray head (1), with netted notch, high pressure generator (3), metal roller (5), variable-frequency motor one (6), hose (7), solution propeller (8) and variable-frequency motor two (9) composition.The cylindrical liquid feed device with netted notch is equipped in cylindrical spray head, cylindrical liquid feed device is connect by hose with the solution propeller on the outside of cylindrical spray head, and the shell of cylindrical spray head is connect with high pressure generator.Spinning process are as follows: open solution propeller, solution is injected into cylindrical liquid feed device by hose, and when liquid level of solution reaches predetermined position, droplet occurs in the grid of mesh cylinder bottom；Variable-frequency motor one is opened, metal roller is rotated；Variable-frequency motor two is opened, cylindrical liquid feed device is rotated；High pressure generator is opened, applies positive voltage for cylindrical spray head, forms jet stream on spinning face, under the action of electric field force, jet stream moves rapidly to metal roller,As the solvent evaporates, it is eventually deposited at metal roller surface.The present invention controls solution pressure by the page height in mesh cylinder, and the slot edge on cylindrical surface generates charge buildup, to realize the electrostatic spinning of the netted bitubular.
Description
Technical field
The present invention relates to a kind of netted bitubular cylindrical static electric spinning device spray head and methods, belong to electrostatic spinning and weaving
Field of mechanical technique.
Background technique
Electrostatic spinning technique starts from the 1930s, being a kind of common method of directly production nanofiber.This method
Process flow is short, easy to operate, and product is chiefly used in the high-techs such as efficient filtering material, biomedical material, chemical sensor
Skill field.
When polymer fiber diameter is down to submicron-scale or nanoscale from micro-meter scale, just will appear a series of
Surprised characteristic.Such as very big volumetric surface area, the volumetric surface area of nanofiber is substantially the 1000 of micrometer fibers
Times；It can neatly carry out surface-functionalized；Superior effect and mechanicalness are shown compared with other known materials forms
Can, such as surface and interfacial effect, small-size effect, quantum size effect and quantum tunneling effect and rigidity, tensile strength.This
A little outstanding performances make nanofiber become the preferred material of many important applications, pass in high efficiency filter, bio-medical, intelligence
The fields such as sense are with development potential.Comprehensively consider operation possibility, stably and controllable property (including fibre diameter and its distribution), processing
Material ranges, processing time-consuming etc., electrostatic spinning processing technology, which just becomes currently the only one kind, can manufacture continuous polymer nano
The method of rice fiber.
Electrostatic spinning is to prepare one of most effective mode of nano-fiber material, compared to pulling method, template synthesis method, from
The technology of preparing of the nano materials such as assembling, electrostatic spinning have many advantages, such as that easy to operate, preparation flow is short, material selection is extensive.
And compared with conventional textile fabric material, nano-fiber material is possessed many and is difficult to open up under large scale due to minimum scale
Existing characteristic, such as apparent surface and interfacial effect, distinctive small-size effect, great specific surface area and high hole
Rate etc..Therefore nano-fiber material possesses wider application field, such as in air filtration, water-oil separating, medical accessory, group
The directions such as weaver's engineering support, nano-fiber material all play the effect for enabling entire industry attract attention for it, it is made to possess non-ordinary light
Bright application prospect.
Traditional electrostatic spinning apparatus is based on single needle or Multi needle, but two kinds of devices all have lacking for low output
It falls into, it is difficult to output needed for meeting industry.In recent years, design improvement electrostatic spinning apparatus improves the yield of its nanofiber
Have become a big research hotspot in electrostatic spinning technique field.In worldwide, mass production Static Spinning Nanowire
The device and method of dimension also continue to bring out to blowout.Wherein most well-known is exactly that Elmarco company relies on Czechly Liberec
The Nanospider electrostatic spinning apparatus of college of engineering's exploitation, realizes commercially producing for electrostatic spinning nano fiber earliest.
The equipment for realizing mass production Electrospun nano-fibers at present, spinning direction are oneself of anti-gravity formula mostly
It is lower and on, and in traditional fibrous material field, the collecting direction of fiber on the contrary, the therefore techno-absence in this direction,
The application of electrostatic spinning in actual production is limited to.And the major reason for limiting its direction is feed liquid way, for mass
For production equipment, the direction that a large amount of spinning solution needs are supplied to, and change its device is then easy to so that solution leakage, nothing
Method continuous production simultaneously influences spinning process.Therefore, designing one kind mass production electrostatic spinning nano fiber but also can change it
Spinning direction, and guarantee that spinning process continuous-stable electrostatic spinning apparatus is particularly necessary.
A kind of suitable gravity cylindrical static electric spinning device of patent ZL201810375660.6 and method, disclose a kind of solution
The limitation of electrostatic spinning spinning from bottom to top at present, may be implemented spinning from top to bottom.But its there are following defect, cylindrical types
Spray head relies on the solution-polymerized SBR overflowed from cylindrical liquid feed device, and solution is unable to control in the aggregation extent of cylindrical type spray head, most
The diameter of electrostatic spinning is caused to be unable to control eventually.
Summary of the invention
The technical problems to be solved by the present invention are: the technology of the Electrospun nano-fibers of mass production at present, spins
Silk direction be more it is single from bottom to top, limited to electrostatic spinning technique and widely applied.Solution is in electrostatic spinning nozzle
Aggregation extent be fully controllable, to ensure that filametntary diameter.The cylindrical feed flow with netted notch in spray head
Device rotates under the drive of motor, and the fiber filament of injection is truncated as needed.
Technical solution used by the present invention solves the above problems is: providing a kind of netted bitubular cylindrical static Electrospun dress
It sets, which is characterized in that device is by cylindrical spray head (1), the cylindrical liquid feed device (2) with netted notch, high pressure generator
(3), metal roller (5), variable-frequency motor one (6), hose (7), solution propeller (8) and variable-frequency motor two (9) composition.It is cylindrical
The cylindrical liquid feed device with netted notch is equipped in spray head, cylindrical liquid feed device passes through on the outside of hose and cylindrical spray head
The connection of solution propeller, the shell of cylindrical spray head and the anode of high pressure generator connect；Motor driven cylinder liquid feed device
It relatively rotates with cylindrical spray head, the metal roller with variable-frequency motor one, the earthing of casing is equipped with below cylindrical spray head.
Liquid feed device is used with netted notch cylinder liquid feed device, avoids the drippage that solution is generated by aggregation, circle
Cylindricality liquid feed device rotates in cylindrical spray head, and the grid on cylindrical liquid feed device is directed at spinning metal roller, net in turn
Drop at lattice carries out electrostatic spinning from the gap of cylindrical spray head in turn, and extra liquid is stripped off at cylindrical spray head,
So that spinning process can with steady and continuous carry out.
Preferably, the cylindrical spray head is the cylindrical body of hollow structure, wall thickness 10-20mm, length 400-
600mm, diameter of section 200-400mm;The width of spout is 1-3mm below cylindrical spray head, and the wall thickness of spout two sides is
0.1-0.5mm, spout to the chamfering between normal thickness being width 5mm.
Preferably, the cylindrical liquid feed device is the cylindrical body of hollow structure, the length is 300-500mm,
Diameter of section is 40-80mm；Cylindrical liquid feed device is provided with netted notch, which is circle, diameter 2-8mm.
Netted notch is distributed along the outer surface even circumferential of cylindrical liquid feed device, along cylindrical liquid feed device
Axis direction spacing be 4-16mm.
Preferably, the section inscribe in the section of the cylindrical spray head and cylindrical liquid feed device.
Preferably, the material of the cylindrical spray head is brass, and the material of cylindrical liquid feed device is polytetrafluoroethylene (PTFE).
Preferably, the distance between the metal roller and cylindrical spray head are 100-300mm.
The present invention also provides a kind of netted bitubular cylindrical static electrical spinning methods, which is characterized in that using above-mentioned netted
Bitubular cylindrical static electric spinning device, comprising the following steps:
Step 1): opening solution propeller, and solution is injected into the hollow structure of cylindrical liquid feed device by hose, works as solution
When liquid level predetermined page position, stop supply solution in time so that the grid notch of cylindrical liquid feed device have drop prominent but
It does not drip；
Step 2): variable-frequency motor one is opened, metal roller is rotated；
Step 3): opening variable-frequency motor two, rotates cylindrical liquid feed device；
Step 4): opening high pressure generator, applies positive voltage for cylindrical spray head, when voltage is more than threshold limit value, in spout
More jet streams are formed on the spinning face of lower section, under the action of electric field force, jet stream moves rapidly to metal roller, with solvent
Volatilization, is eventually deposited at metal roller surface.
Preferably, the voltage that step 3) the mesohigh generator generates is applied on the shell of cylindrical spray head, voltage
Adjustable range is in 0-100kV.
The present invention devise it is a kind of can netted bitubular direction carries out electrostatic spinning from top to bottom device and method, compare
In current mass electrostatic spinning technique, the breakthrough on spinning direction is realized;The electrostatic spinning technique is using cylindrical spray
Head carries out the preparation of needle-free mass electrostatic spinning nano fiber, had both avoided the blocking of spray head, and also considerably increased yield；
Liquid feed device is used with netted notch cylinder liquid feed device, avoids the drippage that solution is generated by aggregation, cylindrical feed flow
Device rotates in cylindrical spray head, and the grid on cylindrical liquid feed device is directed at spinning metal roller, the liquid at grid in turn
Drop carries out electrostatic spinning from the gap of cylindrical spray head in turn, and extra liquid is stripped off at cylindrical spray head, so that spinning
Process can with steady and continuous carry out；In addition, the device simple structure, convenient for cleaning and operation.So can be with using the present invention
The mass electrostatic spinning process for realizing netted bitubular direction, breaches mass and prepares on electrostatic spinning nano fiber production mode reform
Limitation, widened the application prospect of electrostatic spinning technique.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the netted bitubular cylindrical static electric spinning device that embodiment provides；
Fig. 2 is the schematic diagram of cylindrical spray head and cylindrical liquid feed device；
The schematic diagram of the netted cylindrical liquid feed device of Fig. 3.
In figure: 1 cylindrical spray head, the 2 cylindrical liquid feed devices with netted notch, 3 high pressure generators, 4 jet streams, 5 metals
Roller, 6 variable-frequency motors one, 7 hoses, 8 solution propellers, 9 variable-frequency motors two, 10 grids,
2-1 cylinder liquid feed device, the netted notch of 2-2.
Specific embodiment
In order to make the present invention more obvious and understandable, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
Embodiment
As shown in Figure 1-3, being the structural schematic diagram of netted bitubular cylindrical static electric spinning device provided in this embodiment, dress
The cylindrical liquid feed device (2) by cylindrical spray head (1), with netted notch, high pressure generator (3) are set, metal roller (5) becomes
Frequency motor one (6), hose (7), solution propeller (8) and variable-frequency motor two (9) composition.It is equipped in cylindrical spray head 1 with netted
The cylindrical liquid feed device 2 of notch, the solution propeller 8 that cylindrical liquid feed device 2 passes through 1 outside of hose 7 and cylindrical spray head
Connection, the shell of cylindrical spray head 1 are connect with the anode of high pressure generator 3；Band variable-frequency motor one is equipped with below cylindrical spray head 1
6 metal roller 5, the earthing of casing；Cylindrical liquid feed device 2 with netted notch and variable-frequency motor 29 are connected with each other.Metal
The distance between roller 5 and cylindrical spray head 1 are 200mm.
Cylindrical body of the cylindrical spray head 1 for hollow structure, wall thickness 10-20mm, length 400-600mm, section are straight
Diameter is 200-400mm;The width of cylindrical 1 lower section spout of spray head is 1-3mm, and the wall thickness of spout two sides is 0.1-0.5mm, spout
To the chamfering between normal thickness being width 5mm.Cylindrical liquid feed device 2 with grid is the cylindrical body of hollow structure, length
Degree is 300- 500mm, and diameter of section is to be provided with grid notch on 40-80mm cylinder liquid feed device 2, which is circle
Shape, round diameter range are 2-8mm.
Netted notch is distributed along the outer surface even circumferential of cylindrical liquid feed device, along the axis of cylindrical liquid feed device
The spacing in direction is 4-16mm.
The section inscribe in the section of cylindrical spray head 1 and cylindrical liquid feed device 2.The material of cylindrical spray head 1 is brass,
The material of cylindrical liquid feed device 2 is polytetrafluoroethylene (PTFE).
A kind of netted bitubular cylindrical static electrical spinning method:
Step 1: it is the N of 10% polyacrylonitrile (PAN), dimethylformamide (DMF) solution that solution, which selects mass concentration,;It will match
The polymer solution set is fitted into solution propeller 8, opens solution propeller 8, and solution is injected into cylindrical confession by hose 7
In the hollow structure of liquid device 2, when liquid level of solution predetermined page position, stop supply solution in time, so that cylindrical spray head 1
Spinning solution is filled between cylindrical liquid feed device 2 but is not dripped；
Step 2: opening variable-frequency motor 1, metal roller 5 is made to rotate (revolving speed 60r/min)；
Step 3: opening variable-frequency motor 29, cylindrical liquid feed device 2 is made to rotate (revolving speed 5r/min)；
Step 4: opening high pressure generator 3, be slowly increased voltage to 50-55kV, the shell for cylindrical spray head 1 applies positive electricity
Pressure forms more jet streams 4 on the spinning face below spout and penetrates under the action of electric field force when voltage is more than threshold limit value
Stream 4 moves rapidly to metal roller 5, as the solvent evaporates, is eventually deposited at 5 surface of metal roller.
Claims (10)
1. a kind of netted bitubular cylindrical static electric spinning device, which is characterized in that device is lacked by cylindrical spray head (1) with netted
The cylindrical liquid feed device (2) of mouth, high pressure generator (3), metal roller (5), variable-frequency motor one (6), hose (7), solution pushes away
It is formed into device (8) and variable-frequency motor two (9).The cylindrical liquid feed device (2) with netted notch is equipped in cylindrical spray head (1),
Cylindrical liquid feed device (2) is connect by hose (7) with the solution propeller (8) on the outside of cylindrical spray head (1)；Cylindrical spray head
(1) shell is connect with the anode of high pressure generator (3)；The metal with variable-frequency motor one (6) is equipped with below cylindrical spray head (1)
Roller (5), the earthing of casing；Cylindrical liquid feed device (2) with netted notch is connected with variable-frequency motor two (9).
2. netted bitubular cylindrical static electric spinning device according to claim 1, which is characterized in that the cylinder spray head
It (1) is the cylindrical body of hollow structure, wall thickness 10-20mm, length 400-600mm, diameter of section 200-400mm.
3. netted bitubular cylindrical static electric spinning device according to claim 1, which is characterized in that the cylinder spray head
(1) width of lower section spout is 1-3mm, and the wall thickness of spout two sides is 0.1-0.5mm, and spout is to being width between normal thickness
The chamfering of 5mm.
4. netted bitubular cylindrical static electric spinning device according to claim 1, which is characterized in that the band grid notch
Cylindrical liquid feed device (2) be hollow structure cylindrical body, the length is 300-500mm, diameter of section 40-80mm.
5. netted bitubular cylindrical static electric spinning device according to claim 1, which is characterized in that cylindrical liquid feed device
(2) cylindrical liquid feed device is provided with netted notch, which is circle, diameter 2-8mm.
6. netted bitubular cylindrical static electric spinning device according to claim 4, which is characterized in that netted notch is along circle
The outer surface even circumferential of cylindricality liquid feed device is distributed, and the spacing along the axis direction of cylindrical liquid feed device is 4-16mm.
7. netted bitubular cylindrical static electric spinning device according to claim 1, which is characterized in that the cylinder spray head
(1) the section inscribe in section and cylindrical liquid feed device (2).
8. netted bitubular cylindrical static electric spinning device according to claim 1, which is characterized in that the cylinder spray head
(1) material is brass, and the material of cylindrical liquid feed device (2) is polytetrafluoroethylene (PTFE).
9. a kind of netted bitubular cylindrical static electrical spinning method, which is characterized in that using described in claim 1-7 any one
Netted bitubular cylindrical static electric spinning device, comprising the following steps:
Step 1): opening solution propeller (8), and solution is injected into the hollow structure of cylindrical liquid feed device (2) by hose (7)
It is interior, when liquid level of solution predetermined page position so that the grid notch (2-2) of cylindrical liquid feed device (2) have drop prominent but
It does not drip；
Step 2): opening variable-frequency motor one (6), rotates metal roller (5)；
Step 3): opening variable-frequency motor two (9), rotates cylindrical liquid feed device (2)；
Step 3): opening high pressure generator (3), applies positive voltage for cylindrical spray head (1), when voltage is more than threshold limit value,
More jet streams (4) are formed on the spinning face below spout, under the action of electric field force, jet stream (4) is rapid to metal roller (5)
Movement, as the solvent evaporates, is eventually deposited at metal roller (5) surface.
10. netted bitubular cylindrical static electrical spinning method according to claim 8, which is characterized in that in the step 3)
The voltage that high pressure generator (3) generates is applied on the shell of cylindrical spray head (1), and voltage regulation limits are in 0-100kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811646560.9A CN109402747A (en) | 2018-12-29 | 2018-12-29 | A kind of netted bitubular cylindrical static electric spinning device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811646560.9A CN109402747A (en) | 2018-12-29 | 2018-12-29 | A kind of netted bitubular cylindrical static electric spinning device and method |
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| Publication Number | Publication Date |
|---|---|
| CN109402747A true CN109402747A (en) | 2019-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811646560.9A Withdrawn CN109402747A (en) | 2018-12-29 | 2018-12-29 | A kind of netted bitubular cylindrical static electric spinning device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112501700A (en) * | 2020-11-30 | 2021-03-16 | 东华大学 | Rotary embedded electrostatic spinning device and spinning method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006255403A1 (en) * | 2005-06-07 | 2006-12-14 | Elmarco, S.R.O. | A method and device for production of nanofibres from the polymeric solution through electrostatic spinning |
| CN102650095A (en) * | 2011-02-25 | 2012-08-29 | 谢维 | Continuous mass production method and continuous mass production equipment for electrospun nanofiber membranes |
| CN102828260A (en) * | 2012-09-18 | 2012-12-19 | 天津工业大学 | Centrifugal needle-free electrostatic spinning device |
| CN108411385A (en) * | 2018-05-03 | 2018-08-17 | 东华大学 | A kind of suitable gravity duckbill electrostatic spinning apparatus and method |
| CN108411384A (en) * | 2018-05-03 | 2018-08-17 | 东华大学 | A kind of suitable gravity cylindrical static electric spinning device and method |
-
2018
- 2018-12-29 CN CN201811646560.9A patent/CN109402747A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2006255403A1 (en) * | 2005-06-07 | 2006-12-14 | Elmarco, S.R.O. | A method and device for production of nanofibres from the polymeric solution through electrostatic spinning |
| CN102650095A (en) * | 2011-02-25 | 2012-08-29 | 谢维 | Continuous mass production method and continuous mass production equipment for electrospun nanofiber membranes |
| CN102828260A (en) * | 2012-09-18 | 2012-12-19 | 天津工业大学 | Centrifugal needle-free electrostatic spinning device |
| CN108411385A (en) * | 2018-05-03 | 2018-08-17 | 东华大学 | A kind of suitable gravity duckbill electrostatic spinning apparatus and method |
| CN108411384A (en) * | 2018-05-03 | 2018-08-17 | 东华大学 | A kind of suitable gravity cylindrical static electric spinning device and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112501700A (en) * | 2020-11-30 | 2021-03-16 | 东华大学 | Rotary embedded electrostatic spinning device and spinning method |
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