CN108411385A - A kind of suitable gravity duckbill electrostatic spinning apparatus and method - Google Patents
A kind of suitable gravity duckbill electrostatic spinning apparatus and method Download PDFInfo
- Publication number
- CN108411385A CN108411385A CN201810417333.2A CN201810417333A CN108411385A CN 108411385 A CN108411385 A CN 108411385A CN 201810417333 A CN201810417333 A CN 201810417333A CN 108411385 A CN108411385 A CN 108411385A
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- China
- Prior art keywords
- duckbill
- solution
- nozzle
- duckbill nozzle
- electrostatic spinning
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Classifications
-
- 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
-
- 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 suitable gravity duckbill electrostatic spinning apparatus and methods.Described device includes duckbill nozzle, and being equipped with solution in duckbill nozzle squeezes out roller；It is hollow structure inside duckbill nozzle, bottom spout is slot-shaped, and solution propeller is connected to duckbill nozzle.Spinning process is：Solution propeller is opened, solution is injected to the top of hollow structure in duckbill nozzle；Servo motor one is opened, drives solution to squeeze out roller and slowly rotates so that solution flows into the spout of duckbill nozzle so that liquid is full in spout but does not drip；High pressure generator is opened, applies positive extra-high voltage for duckbill nozzle, when voltage is more than threshold limit value, forms more jet streams on liquid level in gap, jet stream is quickly moved to collection device；Solvent quickly volatilizees, and high polymer is deposited on collection device surface.The present invention squeezes out roller by solution and carries out stability contorting to spinning solution, charge buildup is formed in the terminal sharp edges of duckbill, to realize the electrostatic spinning along gravity direction.
Description
Technical field
The present invention relates to a kind of suitable gravity duckbill electrostatic spinning apparatus and methods, belong to electrostatic spinning and textile machine skill
Art field.
Background technology
Electrostatic spinning is to prepare one of most effective mode of nano-fiber material, compared to pulling method, template synthesis method, phase
The technology of preparing of the nano materials such as partition method and self-assembly method, electrostatic spinning is with easy to operate, preparation flow is short, material selection
The advantages that extensive.And compared with conventional textile fabric material, nano-fiber material possesses many in big ruler due to minimum scale
Be difficult to the characteristic showed, such as apparent surface and interfacial effect under degree, distinctive small-size effect, great specific surface area and
High porosity etc..Therefore nano-fiber material possesses wider application field, for example, the energy, environment, biomedicine,
The fields such as photoelectricity, nano-fiber material all play the effect for enabling entire industry attract attention for it, it is made to possess very bright answer
Use foreground.
In recent years, design improvement electrostatic spinning apparatus, the yield for improving its nanofiber have become electrostatic spinning technique
The one big research hotspot in field.In worldwide, the device and method also blowout of mass production electrostatic spinning nano fiber
Continue to bring out likes.Chinese patent ZL 201310032194.9 discloses a kind of umbrella electrostatic spinning nozzle and electrostatic spinning side
Method, this is a kind of free surface formula spinning, and prepared by the mass that electrostatic spinning nano fiber may be implemented, but its maximum deficiency is
Liquid level and air environment contact area are excessive so that solvent highly volatile, to influence the stability of spinning；Chinese patent ZL
201510278266.7 disclose a kind of jet auxiliary Multi needle electrostatic spinning apparatus, which can improve nanofiber unit
Yield in time, but it is easy to happen the problem of syringe needle blocks, and the interference of electric field is easy to happen between intensive syringe needle.
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, design one kind mass production electrostatic spinning nano fiber but also can change it
Spinning direction, and ensure that spinning process continuous-stable electrostatic spinning apparatus is particularly necessary.
Invention content
The technical problem to be solved by the present invention is to：The technology of mass production Electrospun nano-fibers at present is spun
Silk direction be more it is single from bottom to top, limited to electrostatic spinning technique and widely applied.
Technical solution is used by the present invention solves the above problems：A kind of suitable gravity duckbill electrostatic spinning dress is provided
It sets, which is characterized in that including duckbill nozzle, solution is equipped in duckbill nozzle and squeezes out roller, solution squeezes out roller and servo motor
One connection；It is hollow structure inside duckbill nozzle, bottom spout is slot-shaped, and solution propeller is sprayed by hose and duckbill
The top connection of head；The shell of duckbill nozzle and the anode of high pressure generator connect；It is equipped with below duckbill nozzle and collects dress
It sets.
Preferably, the height of the duckbill nozzle is 100-200mm, and the maximum width in the section in horizontal direction is
75-150mm；The width of duckbill nozzle spout is 1-3mm, length 150-300mm, wall thickness 10-20mm, at orifice rim
Thickness be 0.1-0.5mm.
Preferably, the solution squeezes out the cylindrical shape that roller is basal diameter 40-120mm, and the cylinder is square along its length
To the width through duckbill nozzle, 30-50mm is respectively exposed at the both ends that solution squeezes out roller from duckbill nozzle, and solution squeezes out roller
Outer surface and the inner wall of duckbill nozzle mutually agree with.
Preferably, the material of the duckbill nozzle is brass；The material that solution squeezes out roller is polytetrafluoroethylene (PTFE).
Preferably, the collection device is metal roller, is connect with servo motor two, and its earthing of casing.
It is highly preferred that the distance between the metal roller and duckbill nozzle are 100-300mm.
The present invention also provides a kind of suitable gravity duckbill electrospinning process, which is characterized in that uses above-mentioned suitable gravity
Duckbill nozzle, includes the following steps：
Step 1)：Solution propeller is opened, solution is injected to the top of hollow structure in duckbill nozzle by hose；It beats
Servo motor one is opened, drives solution to squeeze out roller and slowly rotates so that solution flows into the spout of duckbill nozzle so that liquid in spout
Body is full but does not drip；
Step 2)：Servo motor two is opened, metal roller quick rotation is made；
Step 3)：High pressure generator is opened, applies positive extra-high voltage for duckbill nozzle, when voltage is more than threshold limit value,
More jet streams are formed on liquid level in gap, under the action of electric field force, jet stream is quickly moved to collection device；In motion process
Middle high polymer jet stream attenuating draws and attenuates, and solvent quickly volatilizees, and high polymer is finally deposited on collection device table in the form of nanofiber
Face.
Preferably, the voltage that the high pressure generator in the step 3) generates is applied on the shell of duckbill nozzle, electricity
Pressure adjustable range is 0-100kV.
The present invention devises a kind of device and method that can carry out electrostatic spinning along gravity direction from top to bottom, compared to
Current mass electrostatic spinning technique, realizes the breakthrough on spinning direction；The electrostatic spinning technique uses duckbill nozzle,
The preparation for carrying out needle-free mass electrostatic spinning nano fiber, had both avoided the blocking of nozzle, and had also considerably increased yield；Feed flow
In terms of device, roller realization is squeezed out using solution, solution is precisely controlled, realized the integrated feed flow in gap, reduce and generate liquid
While the bubble of face, the drippage that solution is generated by aggregation is also avoided so that spinning process can with steady and continuous carry out；This
Outside, device simple structure, convenient for cleaning and operation.So the mass electrostatic along gravity direction may be implemented using the present invention
Spinning process breaches mass and prepares limitation on electrostatic spinning nano fiber production mode reform, widened electrostatic spinning technique
Application prospect.
Description of the drawings
Fig. 1 is the structural schematic diagram for the suitable gravity duckbill electrostatic spinning apparatus that embodiment provides；
Fig. 2 is the schematic diagram that duckbill nozzle squeezes out roller with solution；
Fig. 3 is the sectional view that duckbill nozzle squeezes out roller with solution.
Specific implementation mode
In order to make the present invention more obvious and understandable, hereby with preferred embodiment, and attached drawing is coordinated to be described in detail below.
Embodiment
As shown in Figs. 1-3, it is the structural schematic diagram of suitable gravity duckbill electrostatic spinning apparatus provided in this embodiment, packet
Duckbill nozzle 1 is included, solution is equipped in duckbill nozzle 1 and squeezes out roller 2, solution squeezes out roller 2 and connect with servo motor 1；Duckbilled
1 inside of shape nozzle is hollow structure, and bottom spout is slot-shaped, the top that solution propeller 9 passes through hose 8 and duckbill nozzle 1
Portion is connected to；The shell of duckbill nozzle 1 is connect with the anode of high pressure generator 6；1 lower section of duckbill nozzle is equipped with collection device.
Collection device is metal roller 5, is connect with servo motor 27, and its earthing of casing.Metal roller 5 and duckbill nozzle 1 it
Between distance be 200mm.
The height of duckbill nozzle 1 is 100-200mm, and the maximum width in the section in horizontal direction is 75-150mm；
The width of 1 spout of duckbill nozzle is 1-3mm, length 150-300mm, wall thickness 10-20mm, and the thickness at orifice rim is
0.1-0.5mm.Solution squeezes out the cylindrical shape that roller 2 is basal diameter 40-120mm, which runs through duck along its length
30-50mm is respectively exposed at the width of mouth shape nozzle 1, the both ends that solution squeezes out roller 2 from duckbill nozzle 1, and solution squeezes out the outer of roller 2
Surface and the inner wall of duckbill nozzle 1 mutually agree with.The material of duckbill nozzle 1 is brass；The material that solution squeezes out roller 2 is poly- four
Vinyl fluoride.
A kind of suitable gravity duckbill electrospinning process：
Step 1：Solution selects the n,N dimethylformamide (DMF) that mass concentration is 10% polyacrylonitrile (PAN) molten
Liquid；The polymer solution configured is fitted into solution propeller 9, solution propeller 9 is opened, solution is injected by hose 8
The top of hollow structure in duckbill nozzle 1；Servo motor 1 is opened, solution is driven to squeeze out slowly rotation (the rotating speed 1r/ of roller 2
Min) so that solution flows into the spout of duckbill nozzle 1 so that liquid is full in spout but does not drip；
Step 2：Servo motor 27 is opened, 5 quick rotation of metal roller is made；
Step 3：When nozzle liquid level is saturated, high pressure generator 6 is opened, applies positive extra-high voltage for duckbill nozzle 1, when
When voltage is more than threshold limit value, more jet streams 4 are formed on liquid level in gap, under the action of electric field force, jet stream 4 is to metallic roll
The quickly movement of cylinder 5；The attenuating of high polymer jet stream draws and attenuates during the motion, and solvent quickly volatilizees, and high polymer is finally with nanofiber
Form be deposited on 5 surface of metal roller.The voltage that high pressure generator 6 generates is applied on the shell of duckbill nozzle 1, voltage
Adjustable range is 0-100kV.
Claims (8)
1. a kind of suitable gravity duckbill electrostatic spinning apparatus, which is characterized in that including duckbill nozzle (1), duckbill nozzle (1)
The interior solution that is equipped with squeezes out roller (2), and solution squeezes out roller (2) and connect with servo motor one (3)；It is hollow inside duckbill nozzle (1)
Structure, bottom spout are slot-shaped, and solution propeller (9) is connected to by hose (8) with the top of duckbill nozzle (1)；Duckbilled
The shell of shape nozzle (1) is connect with the anode of high pressure generator (6)；Collection device is equipped with below duckbill nozzle (1).
2. as described in claim 1 along gravity duckbill electrostatic spinning apparatus, which is characterized in that the duckbill nozzle (1)
Height be 100-200mm, the maximum width in the section in horizontal direction is 75-150mm；Duckbill nozzle (1) spout
Width is 1-3mm, length 150-300mm, wall thickness 10-20mm, and the thickness at orifice rim is 0.1-0.5mm.
3. as described in claim 1 along gravity duckbill electrostatic spinning apparatus, which is characterized in that the solution squeezes out roller (2)
For the cylindrical shape of basal diameter 40-120mm, which runs through the width of duckbill nozzle (1), solution along its length
30-50mm is respectively exposed at the both ends for squeezing out roller (2) from duckbill nozzle (1), and solution squeezes out the outer surface of roller (2) and duckbill is sprayed
The inner wall of head (1) mutually agrees with.
4. as described in claim 1 along gravity duckbill electrostatic spinning apparatus, which is characterized in that the duckbill nozzle (1)
Material be brass；The material that solution squeezes out roller (2) is polytetrafluoroethylene (PTFE).
5. as described in claim 1 along gravity duckbill electrostatic spinning apparatus, which is characterized in that the collection device is metal
Roller (5), connect with servo motor two (7), and its earthing of casing.
6. as claimed in claim 5 along gravity duckbill electrostatic spinning apparatus, which is characterized in that the metal roller (5) with
The distance between duckbill nozzle (1) is 100-300mm.
7. a kind of suitable gravity duckbill electrospinning process, which is characterized in that using suitable described in claim 1-6 any one
Gravity duckbill electrostatic spinning apparatus, includes the following steps：
Step 1)：Solution propeller (9) is opened, solution is injected into the upper of duckbill nozzle (1) interior hollow structure by hose (8)
Portion；Servo motor one (3) is opened, drives solution to squeeze out roller (2) and slowly rotates so that solution flows into the spray of duckbill nozzle (1)
Mouthful so that liquid is full in spout but does not drip；
Step 2)：Servo motor two (7) is opened, metal roller (5) quick rotation is made；
Step 3)：High pressure generator (6) is opened, applies positive extra-high voltage for duckbill nozzle (1), when voltage is more than threshold limit value
When, more jet streams (4) are formed on liquid level in gap, under the action of electric field force, jet stream (4) is quickly moved to collection device；
The attenuating of high polymer jet stream draws and attenuates during the motion, and solvent quickly volatilizees, and high polymer is finally deposited in the form of nanofiber
Collection device surface.
8. as claimed in claim 7 along gravity duckbill nozzle electrospinning method, which is characterized in that in the step 3)
The voltage that high pressure generator (6) generates is applied on the shell of duckbill nozzle (1), voltage regulation limits 0-100kV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417333.2A CN108411385A (en) | 2018-05-03 | 2018-05-03 | A kind of suitable gravity duckbill electrostatic spinning apparatus and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810417333.2A CN108411385A (en) | 2018-05-03 | 2018-05-03 | A kind of suitable gravity duckbill electrostatic spinning apparatus and method |
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| Publication Number | Publication Date |
|---|---|
| CN108411385A true CN108411385A (en) | 2018-08-17 |
Family
ID=63137571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810417333.2A Pending CN108411385A (en) | 2018-05-03 | 2018-05-03 | A kind of suitable gravity duckbill electrostatic spinning apparatus and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109402747A (en) * | 2018-12-29 | 2019-03-01 | 李瑞锋 | A kind of netted bitubular cylindrical static electric spinning device and method |
| CN109537072A (en) * | 2018-12-29 | 2019-03-29 | 李瑞锋 | A kind of adjustable electrostatic spinning apparatus of spout and electrospinning process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4230650A (en) * | 1973-08-16 | 1980-10-28 | Battelle Memorial Institute | Process for the manufacture of a plurality of filaments |
| KR20150018273A (en) * | 2013-08-09 | 2015-02-23 | 주식회사 아모그린텍 | Spinning nozzle having system for constant temperature and humidity and electrospining device having the same |
| CN104790048A (en) * | 2014-01-18 | 2015-07-22 | 青岛中科华联新材料有限公司 | Needleless electrostatic spinning device |
| CN105821497A (en) * | 2016-05-06 | 2016-08-03 | 东华大学 | Double-circular-ring-shaped slit type electrostatic spinning device and method |
| US20160305043A1 (en) * | 2011-01-31 | 2016-10-20 | Quynh Pham | Electrospinning process for manufacture of multi-layered structures |
| CN106811811A (en) * | 2017-01-20 | 2017-06-09 | 东华大学 | A kind of brush mass electrostatic spinning apparatus of ball shape rotary and its application method |
-
2018
- 2018-05-03 CN CN201810417333.2A patent/CN108411385A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4230650A (en) * | 1973-08-16 | 1980-10-28 | Battelle Memorial Institute | Process for the manufacture of a plurality of filaments |
| US20160305043A1 (en) * | 2011-01-31 | 2016-10-20 | Quynh Pham | Electrospinning process for manufacture of multi-layered structures |
| KR20150018273A (en) * | 2013-08-09 | 2015-02-23 | 주식회사 아모그린텍 | Spinning nozzle having system for constant temperature and humidity and electrospining device having the same |
| CN104790048A (en) * | 2014-01-18 | 2015-07-22 | 青岛中科华联新材料有限公司 | Needleless electrostatic spinning device |
| CN105821497A (en) * | 2016-05-06 | 2016-08-03 | 东华大学 | Double-circular-ring-shaped slit type electrostatic spinning device and method |
| CN106811811A (en) * | 2017-01-20 | 2017-06-09 | 东华大学 | A kind of brush mass electrostatic spinning apparatus of ball shape rotary and its application method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109402747A (en) * | 2018-12-29 | 2019-03-01 | 李瑞锋 | A kind of netted bitubular cylindrical static electric spinning device and method |
| CN109537072A (en) * | 2018-12-29 | 2019-03-29 | 李瑞锋 | A kind of adjustable electrostatic spinning apparatus of spout and electrospinning process |
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Application publication date: 20180817 |
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