CN113981551A - Nanofiber electrostatic spinning equipment - Google Patents
Nanofiber electrostatic spinning equipment Download PDFInfo
- Publication number
- CN113981551A CN113981551A CN202010729504.2A CN202010729504A CN113981551A CN 113981551 A CN113981551 A CN 113981551A CN 202010729504 A CN202010729504 A CN 202010729504A CN 113981551 A CN113981551 A CN 113981551A
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- Prior art keywords
- spinning
- steel wire
- solution
- voltage power
- electrostatic field
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- 239000002121 nanofiber Substances 0.000 title claims abstract description 27
- 238000010041 electrostatic spinning Methods 0.000 title claims description 19
- 238000009987 spinning Methods 0.000 claims abstract description 86
- 230000005686 electrostatic field Effects 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 65
- 239000010959 steel Substances 0.000 claims description 65
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000001523 electrospinning Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000002572 peristaltic effect Effects 0.000 claims description 2
- 230000005684 electric field Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 6
- 238000011160 research Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- D01D5/0092—Electro-spinning characterised by the electro-spinning apparatus characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields
-
- 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
-
- 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
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
Abstract
The invention relates to a device for spinning nanofibres in at least one electrostatic field; wherein the electrostatic field is generated by a high voltage power supply which is connected to at least one spinning member which is parallel to the plane of the collected nanofibers and which forms a spinning zone. The liquid to be spun is in a solution supply device of the spinning lower member, and the solution supply device is controlled by a motion member to move in an electrostatic field formed by a spinning electrode; the top end of the spinning equipment is provided with a nanofiber collecting device, and the collecting device is also provided with a tensioning device. The spinning solution is coated on a lower spinning member through a solution supply device, and after an electrostatic field is formed, fibers are generated in the spinning solution in the electric field, are taken towards an upper spinning member and fall on a collecting device positioned in the middle of the spinning member.
Description
Technical Field
The invention discloses nanofiber electrostatic spinning equipment, and relates to the field of electrostatic spinning
Background
Nanofibers are a new type of fibrous material. Their excellent performance and potential applications have attracted attention in various fields. In recent years, with the rapid development of nano material technology, nano fiber technology has become the leading edge of fiber science and the research hot spot. At present, the main methods for preparing the nano-fiber include a drawing method, a template method, a self-assembly method and an electrostatic spinning method. Electrostatic spinning, i.e. a polymer jet electrostatic drawing spinning method, is an important method for preparing superfine fibers.
The electrostatic spinning is used as a method for preparing the nano-fiber, and has the characteristics of simplicity, low cost, controllable fiber shape and the like. Compared with the traditional spinning mode, the electrostatic spinning has the greatest characteristic that the polymer solution generates jet flow by utilizing a high-voltage electric field. During the process of the fiber reaching the receiving device after the jet flow, the solvent in the fiber is evaporated and solidified, and then the fiber-shaped substance is obtained. Compared with other technologies, the electrostatic spinning technology has the advantages of simple equipment, lower cost, strong operability and the like. With the rapid development stage of the electrostatic spinning technology research, the research of the electrostatic spinning device is stepped into the experimental device research stage. The experimental electrostatic spinning device used for the laboratory appears, most of the spraying devices in the existing electrostatic spinning device are fixed, the adjustment is inconvenient, the height of the spray head needs manual adjustment, needle blockage and the like occur in the experimental process and need manual checking, the experimental efficiency is influenced, a corresponding real-time monitoring link and an automatic adjusting system are lacked, and the preparation efficiency of the nano fibers is influenced. Therefore, designing and developing a multifunctional electrospinning device will be an important direction in the development of electrospinning technology in the future.
In the electrostatic spinning process, because the size generated by an electrostatic field has certain limitation, and solution is supplied to a general injection needle cylinder, the nano electrostatic spinning efficiency is very low, and the requirements of the current production and research can not be met completely.
Disclosure of Invention
In order to solve the above problems, the present invention proposes the following technical solutions, which can solve the most important efficiency problem in nanofiber spinning, and the object of the present invention is achieved as follows:
a nanofiber electrostatic spinning device mainly comprises an electrostatic field generating device, a spinning device, a solution supplying device, a spinning component adjusting device and a collecting device; the electrostatic field generating device mainly comprises an adjustable high-voltage power supply, the high-voltage power supply is connected with at least one spinning device, and a spinning component can form a vertical spinning electrostatic field area. The spinning component adjusting device can be used for adjusting parameters such as an angle and a distance between two electrodes to control the spinning effect, the linear steel wire at the bottom end passes through a liquid tank of the solution supplying device, and the solution supplying device comprises a motion control structure for controlling the solution tank to move back and forth in an electrostatic field in parallel with the linear steel wire at the bottom end, so that the solution is coated on the linear steel wire at the bottom end of the spinning device; the fibers are brought towards the spin upper member by the action of the electrostatic field and fall onto a collecting device located in the middle of the spin member. Wherein the solution supply device is controlled by a motion component to move in an electrostatic field formed by the spinning electrode; the top end of the spinning equipment is provided with a nanofiber collecting device, and the collecting device is also provided with a tensioning device.
The electrostatic field generating device mainly comprises 1-2 adjustable high-voltage power supplies, when the high-voltage power supplies are negative high-voltage power supplies, the high-voltage power supplies are connected to the steel wire at the bottom end of the spinning device, and when the high-voltage power supplies are positive high-voltage power supplies, the high-voltage power supplies are connected to the steel wire at the top end of the spinning device.
The spinning device is mainly provided with steel wires which are parallel on two rows of surfaces, the number of the upper steel wires and the lower steel wires can be respectively 1-8 parallel steel wires, the included angle between the upper corresponding steel wire and the lower corresponding steel wire can be 0-90 degrees, and the preferable upper steel wire and the lower steel wire are respectively 8 steel wires, and the corresponding included angles are 0 degree and 90 degrees. In another embodiment all the steel wires at the top may be replaced by 7 steel plates.
The solution supply device mainly includes: the device comprises a solution smearing groove, a solution storage box and a movement mechanism; the solution storage box contains a peristaltic pump to continuously supply liquid to the solution smearing groove, and the solution is evenly smeared on a steel wire of the spinning mechanism through the moving mechanism.
The bottom steel wire of the spinning device can be fixed on the spinning component adjusting device, the device is provided with a steel wire coil which can receive and release the steel wire, the steel wire is convenient to replace, the spinning component adjusting device is also provided with a steel wire up-and-down adjusting mechanism and a left-and-right adjusting mechanism, the steel wire can be horizontally positioned in the spinning space,
the included angle of the steel wires is determined by the fixing mode of the spinning component adjusting device.
The collecting device is mainly a roll of non-woven fabrics or other collecting materials, and the collecting device collects the nano-fibers through the spinning area at a constant speed under the action of a motor, and at least one tensioning mechanism is arranged in the preferred collecting device.
Drawings
FIG. 1 is an isometric view of the device with the housing removed
FIG. 2 is a side view of the device with the housing removed
FIG. 3 is a front view of the apparatus with the housing removed
FIG. 4 shows a spinning member adjusting device 400 in the apparatus
FIG. 5 shows a collection device 500 in the apparatus
FIG. 6 is a schematic diagram of the operation of the apparatus
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Fig. 1 shows a nanofiber electrospinning device, which mainly comprises an electrostatic field generating device 100, a spinning device 200, a solution supplying device 300, a spinning member adjusting device 400, and a collecting device 500; the electrostatic field generating device 100 mainly comprises an adjustable high-voltage power supply 101, the high-voltage power supply 101 is connected to at least one spinning device 200, and the spinning components form a vertical spinning electrostatic field area. The spinning member adjusting device 400 can be used for adjusting parameters such as an angle and a distance between two electrodes to control the spinning effect, the bottom linear steel wire passes through a liquid tank of the solution supply device, and the solution supply device 300 comprises a motion control structure to control the solution tank to move back and forth in an electrostatic field in parallel with the bottom linear steel wire, so that the solution is coated on the bottom linear steel wire of the spinning device; the fibers are brought towards the spin upper member by the action of the electrostatic field and fall onto a collecting device located in the middle of the spin member. Wherein the solution supply device 300 is controlled by a motion component to move in an electrostatic field formed by a spinning electrode; the nanofiber collecting device 500 is provided at the top end of the spinning apparatus.
The electrostatic field generating device 100 mainly comprises adjustable high-voltage power supplies 101, the number of the adjustable high-voltage power supplies can be 1-2, when the high-voltage power supplies are negative high voltage, the adjustable high-voltage power supplies are connected to the steel wire 202 at the bottom end of the spinning device, and when the high-voltage power supplies are positive high voltage, the adjustable high-voltage power supplies are connected to the steel wire at the top end of the spinning device, so that a stable electrostatic field can be provided.
As shown in FIG. 2, which is a side view of the apparatus with the housing removed, a spinning top end wire 201 is positioned at the top end of the spinning space of the spinning device 200, a spinning bottom end wire 202 is fixed on a left adjusting device 402 and a right adjusting device 401 of a spinning member adjusting device 400, and a coating liquid tank 304 is movably arranged in the threading wire. 301 is a solution storage box, a micro pump is arranged in the box to continuously supply liquid to a coating liquid groove 304, a driving mechanism 302 is a motor to drive a belt wheel to drive a sliding table 303, and the coating liquid groove is fixed on the sliding table 303. When the motor is driven, the coating liquid groove moves back and forth on the steel wire 202 at the bottom end of the spinning device, and the solution is supplied to the electrostatic field.
As shown in fig. 3, the driving mechanism 302 mainly includes a motor 3021, a bearing and bearing seat 3022, an insulating rod 3023 and a pulley 3024, and the insulating rod transmits power to isolate high voltage and prevent the motor from being damaged by the high voltage.
As shown in FIG. 4, two steel wires of the spinning device are required to be parallel during the spinning process, and the parallelism requirement is high, so that a spinning member adjusting device 400 is required in the equipment, wherein a left adjusting device 402 is provided with a new steel wire coil which is connected to a waste steel wire coil 4012 through a pulley 4023 to a pulley 4011 of a right adjusting device 401, and used steel wires are collected by rotating the waste steel wire coil 4012. A side adjusting device 4021 is arranged on the left adjusting device 402, the steel wire can be adjusted to slightly deviate on the side, and an up-down adjusting device 4011 is arranged on the right adjusting device 401, the height of the steel wire can be adjusted, and the steel wire can be ensured to be parallel to the upper steel wire through adjustment in two directions.
As shown in fig. 5, the spinning 500 includes an unreeling 508, a non-woven fabric roll is generally fixed on a base 501 through a bearing, a fastening screw is provided at one end of a shaft to adjust the tension of the fabric roll and ensure that the fabric roll is always in a tensioned state, a motor 506 mainly provides a fabric winding power at the other part of the collecting device, a rubber rod 502 is connected through a coupling, a tightening roll 504 is placed on the rubber rod 502, the tightening roll is driven by the friction force between the rubber rod fabric and the tightening roll 504, a certain weight can be added to the tightening roll 504 in a certain situation, and a winding fixing seat 503 is used for fixing the devices.
The entire spinning is carried out as shown in fig. 6 by the above process, 600 is the nanofiber filament formed during the run. The high voltage power supply 101 is connected to at least one spinning device 200, and the spinning components form a vertical spinning electrostatic field area. The solution supply device 300 moves back and forth in the electrostatic field in parallel with the bottom end linear steel wire, so that the solution is coated on the bottom end linear steel wire of the spinning device; the fibers 600 are brought towards the spin upper member by the electrostatic field and fall onto a collecting device located in the middle of the spin member.
Compared with the prior art, the nanofiber electrostatic spinning equipment provided by the invention at least has the following beneficial effects: nanometer electrostatic spinning can be carried out simultaneously in a plurality of electrostatic fields, and the electrostatic field can adjust intensity size etc. as required, improvement spinning efficiency that can be very big.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A nanofiber electrostatic spinning device is characterized by mainly comprising an electrostatic field generating device, a spinning device, a solution supplying device, a spinning component adjusting device and a collecting device; the electrostatic field generating device mainly comprises an adjustable high-voltage power supply, the high-voltage power supply is connected to at least one spinning device, a spinning component can form a vertical spinning electrostatic field area, the spinning component adjusting device can be used for adjusting parameters such as an angle and a distance between two electrodes to control the spinning effect, a bottom linear steel wire penetrates through a liquid tank of a solution supply device, and the solution supply device comprises a motion control structure to control the solution tank to move back and forth in the electrostatic field in parallel to the bottom linear steel wire, so that the solution is coated on the bottom linear steel wire of the spinning device; the fibers are carried to the direction of the spinning upper component and fall onto a collecting device positioned in the middle of the spinning component through the action of an electrostatic field, wherein the solution supply device is controlled by a moving component to move in the electrostatic field formed by a spinning electrode; the top end of the spinning equipment is provided with a nanofiber collecting device, and the collecting device is also provided with a tensioning device.
2. The nanofiber electrospinning device according to claim 1, wherein the electrostatic field generating device mainly comprises adjustable high voltage power supplies, the number of the adjustable high voltage power supplies can be 1-2, when the high voltage power supplies are negative high voltage, the adjustable high voltage power supplies are connected to the bottom steel wire of the spinning device, when the high voltage power supplies are positive high voltage, the adjustable high voltage power supplies are connected to the top steel wire of the spinning device, and the invention preferably uses two high voltage power supplies (one positive power supply and one negative power supply) simultaneously.
3. The nanofiber electrospinning device according to claim 1, wherein the spinning device is mainly composed of parallel steel wires on two rows, the number of the upper steel wires and the lower steel wires can be respectively 1-8 parallel steel wires, the included angle between the upper corresponding steel wire and the lower corresponding steel wire can be 0-90 degrees, the upper steel wire and the lower corresponding steel wire are respectively preferably 8 steel wires, the corresponding included angles are 0 degrees and 90 degrees, and in another embodiment, all the steel wires on the top can be replaced by steel plates.
4. The nanofiber electrospinning apparatus of claim 1, wherein the solution supply means mainly comprises: the device comprises a solution smearing groove, a solution storage box and a movement mechanism; the solution storage box contains a peristaltic pump to continuously supply liquid to the solution smearing groove, and the solution is evenly smeared on a steel wire of the spinning mechanism through the moving mechanism.
5. The nanofiber electrospinning device according to claim 1, wherein the bottom steel wire of the spinning device can be fixed on the spinning member adjusting device, the device is provided with a steel wire coil which can receive and release the steel wire, so that the steel wire can be conveniently replaced, and the spinning member adjusting device is further provided with a steel wire up-and-down adjusting mechanism and a left-and-right adjusting mechanism which can enable the steel wire to be horizontally positioned in the spinning space.
6. The nanofiber electrospinning device of claim 3, wherein the included angle of the steel wires is determined by the fixing manner of the spinning member adjusting device.
7. The nanofiber electrospinning device of claim 1, wherein the collecting device is located in parallel between the wires of the two spinning members, and the collecting device is mainly a roll of non-woven fabric or other collecting material which passes through the spinning zone at a constant speed to collect the nanofibers by the action of a motor, and preferably at least one tensioning mechanism is further provided in the collecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010729504.2A CN113981551A (en) | 2020-07-27 | 2020-07-27 | Nanofiber electrostatic spinning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010729504.2A CN113981551A (en) | 2020-07-27 | 2020-07-27 | Nanofiber electrostatic spinning equipment |
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| Publication Number | Publication Date |
|---|---|
| CN113981551A true CN113981551A (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010729504.2A Pending CN113981551A (en) | 2020-07-27 | 2020-07-27 | Nanofiber electrostatic spinning equipment |
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| Country | Link |
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| CN (1) | CN113981551A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112301439A (en) * | 2020-11-19 | 2021-02-02 | 上海第二工业大学 | Nanofiber electrostatic spinning equipment |
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2020
- 2020-07-27 CN CN202010729504.2A patent/CN113981551A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112301439A (en) * | 2020-11-19 | 2021-02-02 | 上海第二工业大学 | Nanofiber electrostatic spinning equipment |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220128 |
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| WD01 | Invention patent application deemed withdrawn after publication |