CN109023559A - A kind of electric spinning equipment and preparation method thereof preparing staple fiber batt - Google Patents
A kind of electric spinning equipment and preparation method thereof preparing staple fiber batt Download PDFInfo
- Publication number
- CN109023559A CN109023559A CN201811181373.8A CN201811181373A CN109023559A CN 109023559 A CN109023559 A CN 109023559A CN 201811181373 A CN201811181373 A CN 201811181373A CN 109023559 A CN109023559 A CN 109023559A
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- China
- Prior art keywords
- spin chamber
- staple fiber
- fiber
- depositor
- fiber batt
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/72—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged
- D04H1/728—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged by electro-spinning
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a kind of electric spinning equipments and preparation method thereof for preparing staple fiber batt, including spin chamber, fixing seat, nozzle, droplet generator, liquid reserve tank, air inlet pipe, blower, fiber depositor, metallic conduction ring, HV generator；The bottom of spin chamber is equipped with fixing seat, and fixing seat is equipped with nozzle；Nozzle is successively connected to droplet generator, the liquid reserve tank outside spin chamber；It is symmetrically arranged with more on spin chamber's side wall and tilts the air inlet pipe for being passed through spin chamber；Every Fans are connected to corresponding air inlet pipe, and gas agitates lower entrance spin chamber in blower and forms eddy flow；Spin chamber's upper port is equipped with the metallic conduction ring of ring structure；Metallic conduction ring and HV generator are electrically connected；Fiber depositor is set to right above spin chamber, and fiber depositor is grounded.The present invention generates a large amount of fine droplets using flow field, and then ejects multiply staple fiber jet stream, can directly prepare the staple fiber batt that single fiber length is micron level, fibre diameter is Nano grade.
Description
Technical field
The present invention relates to staple fiber preparation technical field, specially a kind of electric spinning equipment for preparing staple fiber batt and its preparation
Method.
Background technique
Electrostatic spinning be prepare common one of the means of nanofiber, abbreviation electrospinning, solution droplets or solution tip by
Electro-hydraulic coupling occurs for high-pressure electrostatic effect, and shape becomes taylor cone, and when electric field force is sufficiently large, electrified jet is from taylor cone cone to base
Bottom is sprayed, and is gradually stretched, is solidified in flight course, and finally nanofiber is formed on the substrate in deposition.The means obtain
Nanofiber be generally long fibre, i.e., single fiber length is greater than micron level.
The fibrofelt that single fiber length is micron level, fibre diameter is Nano grade, referred to as nano short fiber felt.It receives
Rice staple fiber batt has special filtering property, can filter the other particle of micro-nano, together because of its excellent specific surface area characteristic
When also have the characteristics that preferable strength and stiffness, easily dispersion, processing performance it is good, filtering, catalysis, medicine, biology etc. lead
Domain has more application, such as in slow releasing carrier of medication field: nano short fiber can improve drug utilization with injection form for medicine
Rate and lesions position cure rate.
Generally use template, vapour deposition process, electrospinning (need to post-process as long-time is super currently, preparing nano short fiber
Sound, high speed shear etc.) the methods of obtain.If Li Xiaohong team proposes freezing cutting method, for another example Chinese patent CN
The patents such as 105536075 A, CN 1603036A propose, the nanometer long fibre that electrospinning obtains is directly collected in water, height is utilized
Fast water flow is cut into staple fiber.
But prior art preparation complex steps, nano short fiber felt can not be directly prepared, batch production is not suitable for,
Constrain the application of nano short fiber.Therefore, there is the demand for being further improved and optimizing in the prior art, this is also exactly the technology
Where power and starting point that one of research emphasis in field, the even more present invention are accomplished.
Summary of the invention
(1) the technical issues of solving
The present invention provides a kind of electric spinning equipment and preparation method thereof for preparing staple fiber batt, generates a large amount of subtle liquid using flow field
Drop, and then ejects multiply staple fiber jet stream, can directly prepare that single fiber length is micron level, fibre diameter is nanometer
The staple fiber batt of rank.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of electric spinning equipment preparing staple fiber batt,
Including spin chamber, fixing seat, nozzle, droplet generator, liquid reserve tank, air inlet pipe, blower, fiber depositor, metallic conduction ring, height
Press electrostatic generator；The bottom of the spin chamber is equipped with fixing seat, and fixing seat is equipped with nozzle；The nozzle successively with spin chamber
The droplet generator of outside, liquid reserve tank connection；It is symmetrically arranged with more on spin chamber's side wall and tilts the air inlet for being passed through spin chamber
Pipe；The blower is more, and every Fans are connected to corresponding air inlet pipe, and gas agitates lower entrance spin chamber in blower and forms rotation
Stream；Spin chamber's upper port is equipped with the metallic conduction ring of ring structure；The metallic conduction ring and HV generator electricity
Property connection；The fiber depositor is set to right above spin chamber, and fiber depositor is grounded.
Preferably, the spin chamber inner cavity is cylinder revolving body, and the inside diameter ranges of inner cavity are 5cm ~ 50cm.
Preferably, 20 μm ~ 1000 μm of the nozzle inside diameter range.
Preferably, the spacing of the fiber depositor and spin chamber is 1cm ~ 50cm.
Preferably, the blower is multiple with air inlet pipe, is circumferentially evenly arranged on spin chamber's side wall.
Preferably, the air inlet pipe and spin chamber are axial, tangential, radial at an acute angle.
A kind of preparation method of staple fiber batt, includes the following steps:
1) solution is configured, solution is packed into liquid reserve tank, sets droplet generator flow as 10 μ l/hr ~ 100ml/hr, drop generates
Frequency be 0.1Hz ~ 10Hz；
2) blower is opened, sets the flow velocity for being pumped into gas as 0.1m/s ~ 30m/s, makes to generate eddy flow in spin chamber, at this time spin chamber
Generate a large amount of fragmentation drops；
3) HV generator is opened, sets voltage output value as 1kV ~ 50kV, spin chamber and fiber depositor generate high pressure
Electrostatic field；
4) fragmentation drop is formed jet stream by the effect of high voltage electric field, sprays to fiber depositor, finally falls in fiber depositor
Upper formation nano short fiber felt.
Preferably, the droplet generator can be any one in constant flow pump, metering pump, syringe pump.
Preferably, the nozzle can be flat mouth dispensing needle head.
Preferably, the gas can be inert gas.
Preferably, the fiber depositor is the device referred in electrostatic spinning field, as flat panel collector device, roller are collected
Device, parallel pole collection device etc..
(3) beneficial effect
After adopting the above technical scheme, having following advantages compared with prior art:
Advantage one, drop are acted on the high speed shear when high-speed motion of flow field by flow field, along between drop, drop and rotation
Strong collision between flow chamber inner wall, drop evaporate rapidly, are fragmented into the smaller fragmentation drop of volume, and fragmentation drop is quiet in high pressure
Staple fiber jet stream is formed under the action of electric power, is finally deposited on fiber depositor in the form of nano short fiber felt；
Advantage two, drop splitting, subtle chemical conversion fragmentation drop, each fragmentation drop can shape become jet stream, therefore can be formed more
The mixed and disorderly short jet stream of stock, direct batch electrospinning go out the millimetre-sized staple fiber batt of fibre length, simplify the cumbersome preparation step of the prior art
Suddenly.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention.
In figure: 1 liquid reserve tank, 2 droplet generators, 3 blowers, 4 air inlet pipe, 5 spin chambers, 6 fiber depositors, 7 jet streams, 8 high
Press electrostatic generator, 9 metallic conduction rings, 10 fragmentation drops, 11 drops, 12 nozzles, 13 spin chamber's pedestals, 14 fixing seats.
Specific embodiment
The present invention is further elaborated below by drawings and examples.
A kind of electric spinning equipment preparing staple fiber batt as shown in Figure 1:, including spin chamber 5, fixing seat 14, nozzle 12, drop
Generator 2, liquid reserve tank 1, air inlet pipe 4, blower 3, fiber depositor 6, metallic conduction ring 9, HV generator 8.
Spin chamber's pedestal 13 is equipped with fixing seat 14, and fixing seat 14 is equipped with hollow nozzle 12.Nozzle 12 successively with eddy flow
Droplet generator 2, liquid reserve tank 1 outside room 5 are connected to.5 inner cavity of spin chamber is cylinder revolving body, and material is insulating materials, internal diameter
Range 5cm ~ 50cm.Nozzle 12 can be flat mouth dispensing needle head, 20 μm ~ 1000 μm of inside diameter ranges.Liquid reserve tank 1 is for storing original
Material, droplet generator 2 pump the raw material in liquid reserve tank 1 to nozzle 12, carry out nozzle 12 to spin chamber 5 periodical, quantitative, fixed
Spue to shape drop 11.Droplet generator 2 can be constant flow pump, metering pump, syringe pump, and range of flow is 10 μ l/hr ~ 100ml/
Hr, drop frequency are 0.1Hz ~ 10Hz.
It is symmetrically arranged with more on 5 side wall of spin chamber and tilts the air inlet pipe 4 for being passed through spin chamber 5, air inlet pipe 4 and 5 axis of spin chamber
It is at an acute angle to (being upwards positive), tangential, radial (being inwardly positive).Blower 3 be equipped with more, every Fans 3 with it is corresponding into
Tracheae 4 is connected to, and multiple blowers 3 and air inlet pipe 4 are circumferentially evenly arranged on 5 side wall of spin chamber.Blower 3 is pumped into the velocity interval of air-flow
For 0.1m/s ~ 30m/s, the gas being pumped into is inert gas, and blower 3 agitates inert gas to enter spin chamber 5 and forms eddy flow.
5 upper port of spin chamber is equipped with the metallic conduction ring 9 of ring structure, and metallic conduction ring 9 and HV generator 8 are just
Pole or cathode are electrically connected (wherein 9 upper port of metallic conduction ring is not closed).Fiber depositor 6 is set to right above spin chamber 5, is used
In the staple fiber that collection is ejected out of spin chamber 5, fiber depositor 6 refers to the device in electrostatic spinning field, such as flat panel collector
Device, roller collection device, parallel pole collection device etc. can be adjusted with the vertical spacing of spin chamber 5 between 1cm ~ 50cm
It is whole.The working range of HV generator 8 is 1kV ~ 50kV, therefore it is quiet that high pressure is formed between spin chamber 5 and fiber depositor 6
Electric field.
The process that staple fiber batt is formed are as follows: drop 11 enters eddy flow area, 5 flow field in rotating room after emerging from nozzle 12
Lower spiral is acted on to accelerate upwards.Drop 11 in flow field medium-high speed sports, due between drop 11, drop 11 and spin chamber
The effects of strong collisions of 5 internal chamber walls and the shearing force of air-flow, drop 11 evaporates rapidly, is fragmented into the smaller fragmentation of volume
Drop 10.Fragmentation drop 10 moves to 9 upper port of metallic conduction ring with flow field, into high-pressure electrostatic field areas.Fragmentation drop 10
Effect by high voltage electric field is sprayed, and jet stream 7 is formed, and jet stream 7 is made by electrostatic field force, viscosity resistance, surface tension etc.
With the refinement that is constantly stretched, finally falls on fiber depositor 6 and form staple fiber.
Based on above-mentioned apparatus, the present embodiment about staple fiber batt the preparation method is as follows:
Embodiment 1:
Air inlet pipe 4 and spin chamber 5 are axially (being upwards forward direction) at 45 °, tangentially (inside at 30 ° at 30 °, radial direction in the present embodiment
For forward direction)；Use solution for PEO solution, solute PEO, solvent is alcohol, distilled water, volume ratio 1:1, solution concentration
16%；210 μm of 12 internal diameter of nozzle.
Based on above-mentioned apparatus, embodiment 1 about nano short fiber felt the preparation method is as follows:
1) PEO solution is packed into liquid reserve tank 1, sets 2 flow of droplet generator as 700 μ l/hr, the frequency that drop 11 generates is
3Hz。
2) two Fans 3 are opened, set the flow velocity for being pumped into gas as 3.6m/s, makes to generate eddy flow in spin chamber 5, revolve at this time
Flow chamber 5 generates a large amount of fragmentation drops 10.
3) HV generator 8 is opened, sets voltage output value as 35kV, spin chamber 5 and fiber depositor 6 generate height
Press electrostatic field.
4) fragmentation drop 10 is formed jet stream 7 by the effect of high voltage electric field, sprays to fiber depositor 6, finally falls in fibre
Fibrofelt, average fiber length 2mm, avarage fiber diameter 850nm are formed on dimension depositor 6.
Embodiment 2:
Air inlet pipe 4 and spin chamber 5 are axial (upward for forward direction) at 45 °, tangential at 45 °, radial (inside at 50 ° in the present embodiment
For forward direction)；Use solution for PVDF solution, solute PVDF, solvent is acetone, DMF, volume ratio 1:1, solution concentration 15%；
210 μm of 12 internal diameter of nozzle.
Based on above-mentioned apparatus, embodiment 2 about nano short fiber the preparation method is as follows:
1) PVDF solution is packed into liquid reserve tank 1, sets 2 flow of droplet generator as 500 μ l/hr, the frequency that drop 11 generates is
3Hz。
2) two Fans 3 are opened, set the flow velocity for being pumped into gas as 2.7m/s, makes to generate eddy flow in spin chamber 5, revolve at this time
Flow chamber 5 generates a large amount of fragmentation drops 10.
3) HV generator 8 is opened, sets voltage output value as 18kV, spin chamber 5 and fiber depositor 6 generate height
Press electrostatic field.
4) fragmentation drop 10 is formed jet stream 7 by the effect of high voltage electric field, sprays to fiber depositor 6, finally falls in fibre
It ties up and forms nano short fiber felt, average fiber length 4mm, avarage fiber diameter 350nm on depositor 6.
Foundation embodiment described above is enlightenment, and through the above description, relevant staff completely can be not
In the range of deviateing this invention thought, various changes and amendments are carried out.This item uses novel technical scope not
The content being confined on specification, it is necessary to the range of its protection is determined according to scope of the claims.
Claims (10)
1. a kind of electric spinning equipment for preparing staple fiber batt, it is characterised in that: including spin chamber (5), fixing seat (14), nozzle
(12), droplet generator (2), liquid reserve tank (1), air inlet pipe (4), blower (3), fiber depositor (6), metallic conduction ring (9), height
It presses electrostatic generator (8)；
The bottom of the spin chamber (5) is equipped with fixing seat (14), and fixing seat (14) is equipped with nozzle (12)；The nozzle (12) according to
The secondary droplet generator (2) external with spin chamber (5), liquid reserve tank (1) are connected to；It is symmetrically arranged on spin chamber (5) side wall more
Root tilts the air inlet pipe (4) for being passed through spin chamber (5)；The blower (3) is equipped with more, every Fans (3) and corresponding air inlet pipe (4)
Connection, gas agitate lower entrance spin chamber (5) in blower (3) and form eddy flow；Spin chamber's (5) upper port is equipped with ring junction
The metallic conduction ring (9) of structure；The metallic conduction ring (9) and HV generator (8) are electrically connected；The fiber depositor
(6) it is set to right above spin chamber (5), and fiber depositor (6) is grounded.
2. a kind of electric spinning equipment for preparing staple fiber batt according to claim 1, it is characterised in that: the spin chamber (5)
Inner cavity is cylinder revolving body, and the inside diameter ranges of inner cavity are 5cm ~ 50cm.
3. a kind of electric spinning equipment for preparing staple fiber batt according to claim 1, it is characterised in that: in the nozzle (12)
Diameter range is 20 μm ~ 1000 μm.
4. a kind of electric spinning equipment for preparing staple fiber batt according to claim 1, it is characterised in that: the fiber depositor
It (6) is 1cm ~ 50cm with the vertical spacing of spin chamber (5).
5. a kind of electric spinning equipment for preparing staple fiber batt according to claim 1, it is characterised in that: the blower (3) with
Air inlet pipe (4) be it is multiple, be circumferentially evenly arranged on spin chamber (5) side wall.
6. a kind of electric spinning equipment for preparing staple fiber batt according to claim 1, it is characterised in that: the air inlet pipe (4)
It is axial, tangential, radial at an acute angle with spin chamber (5).
7. a kind of preparation method of staple fiber batt, characterized by the following steps:
1) solution is configured, solution is packed into liquid reserve tank (1), sets droplet generator (2) flow as 10 μ l/hr ~ 100ml/hr, liquid
The frequency that drop generates is 0.1Hz ~ 10Hz；
2) more Fans (3) are opened, set the flow velocity for being pumped into gas as 0.1m/s ~ 30m/s, make to generate eddy flow in spin chamber (5),
Spin chamber (5) generate a large amount of fragmentation drops at this time；
3) HV generator (8) are opened, set voltage output value as 1kV ~ 50kV, spin chamber (5) and fiber depositor (6)
Generate high-voltage electrostatic field；
4) fragmentation drop is formed jet stream by the effect of high voltage electric field, sprays to fiber depositor (6), finally falls in fiber deposition
Device forms staple fiber batt on (6).
8. a kind of preparation method of staple fiber batt according to claim 7, it is characterised in that: described
Droplet generator (2) is constant flow pump, metering pump, any one in syringe pump.
9. a kind of preparation method of staple fiber batt according to claim 7, it is characterised in that: the gas is indifferent gas
Body.
10. a kind of preparation method of staple fiber batt according to claim 7, it is characterised in that: the fiber depositor (6)
For any one in flat panel collector device, roller collection device, parallel pole collection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181373.8A CN109023559A (en) | 2018-10-11 | 2018-10-11 | A kind of electric spinning equipment and preparation method thereof preparing staple fiber batt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181373.8A CN109023559A (en) | 2018-10-11 | 2018-10-11 | A kind of electric spinning equipment and preparation method thereof preparing staple fiber batt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109023559A true CN109023559A (en) | 2018-12-18 |
Family
ID=64616112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811181373.8A Pending CN109023559A (en) | 2018-10-11 | 2018-10-11 | A kind of electric spinning equipment and preparation method thereof preparing staple fiber batt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114703551A (en) * | 2022-03-25 | 2022-07-05 | 济宁市技师学院 | Puffing device for producing puffed fibers from polylactic acid and application of puffing device |
| CN114892285A (en) * | 2022-05-24 | 2022-08-12 | 青岛科技大学 | Short fiber preparation device based on electrostatic spinning method and method for preparing short fibers |
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|---|---|---|---|---|
| US7105058B1 (en) * | 2002-03-05 | 2006-09-12 | Polyremedy, Inc. | Apparatus for forming a microfiber coating |
| CN102978723A (en) * | 2012-12-17 | 2013-03-20 | 苏州大学 | Vortex type bubble spinning device |
| US20140234457A1 (en) * | 2011-10-12 | 2014-08-21 | Korea University Research And Business Foundation | Electrospinning device |
| CN106435770A (en) * | 2016-09-12 | 2017-02-22 | 启东斯帕德新材料科技有限公司 | Tornado-type electrostatic spinning shower nozzle |
| CN107460642A (en) * | 2017-09-19 | 2017-12-12 | 巢湖学院 | A kind of fibrofelt preparation facilities and preparation method thereof |
-
2018
- 2018-10-11 CN CN201811181373.8A patent/CN109023559A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7105058B1 (en) * | 2002-03-05 | 2006-09-12 | Polyremedy, Inc. | Apparatus for forming a microfiber coating |
| US20140234457A1 (en) * | 2011-10-12 | 2014-08-21 | Korea University Research And Business Foundation | Electrospinning device |
| CN102978723A (en) * | 2012-12-17 | 2013-03-20 | 苏州大学 | Vortex type bubble spinning device |
| CN106435770A (en) * | 2016-09-12 | 2017-02-22 | 启东斯帕德新材料科技有限公司 | Tornado-type electrostatic spinning shower nozzle |
| CN107460642A (en) * | 2017-09-19 | 2017-12-12 | 巢湖学院 | A kind of fibrofelt preparation facilities and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114703551A (en) * | 2022-03-25 | 2022-07-05 | 济宁市技师学院 | Puffing device for producing puffed fibers from polylactic acid and application of puffing device |
| CN114892285A (en) * | 2022-05-24 | 2022-08-12 | 青岛科技大学 | Short fiber preparation device based on electrostatic spinning method and method for preparing short fibers |
| CN114892285B (en) * | 2022-05-24 | 2024-02-02 | 青岛科技大学 | Short fiber preparation device based on electrostatic spinning method and method for preparing short fiber |
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Application publication date: 20181218 |
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