CN108728913B - Electrostatic spinning receiving device and electrostatic spinning preparation method - Google Patents
Electrostatic spinning receiving device and electrostatic spinning preparation method Download PDFInfo
- Publication number
- CN108728913B CN108728913B CN201710263005.7A CN201710263005A CN108728913B CN 108728913 B CN108728913 B CN 108728913B CN 201710263005 A CN201710263005 A CN 201710263005A CN 108728913 B CN108728913 B CN 108728913B
- Authority
- CN
- China
- Prior art keywords
- spinning
- air
- hollow cylinder
- cylinder device
- metal ring
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000010041 electrostatic spinning Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 238000009987 spinning Methods 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 29
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000002121 nanofiber Substances 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- 238000001523 electrospinning Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000002274 desiccant Substances 0.000 claims description 4
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 238000004113 cell culture Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002904 solvent 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
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
-
- 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
- D01D5/0015—Electro-spinning characterised by the initial state of the material
- D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
-
- 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
- D01D5/0092—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
Abstract
The invention discloses an electrostatic spinning receiving device, which comprises: a metal ring, a uncovered hollow cylinder device, an electrode plate and an air vortex conduit. The metal ring is positioned right above the uncovered hollow cylinder device and is grounded; the electrode plate is completely attached to the outer bottom of the uncovered hollow cylinder device and is connected with a ground wire; and one end of the air outlet of the air vortex conduit is fixed on the inner wall of the uncovered hollow cylinder device, and one end of the air inlet is introduced with air. The electrostatic spinning preparation method comprises the following steps: (1) preparing a solution; (2) preparing spinning; (3) and (4) spinning. The preparation method of electrostatic spinning, which is adopted by the invention, has simple process, prepares the orderly-arranged nano fibers, prepares the spirally-swirled nano fibers in macroscopic significance, and has good application prospect in the medical field.
Description
Technical Field
The invention relates to the technical field of electrostatic spinning preparation, in particular to an electrostatic spinning receiving device.
Background
The electrostatic spinning technology is a method for obtaining a fibrous material by carrying out jet drawing on a polymer solution or a melt under the action of high-voltage electrostatic field force and volatilizing and solidifying a solvent. Compared with other conventional spinning processes, the electrostatic spinning process has the main characteristics of obtaining the nano-fibers with large specific surface area, high porosity, small pore diameter and large length-diameter ratio, and has significant significance in the fields of cell culture, environmental protection, treatment and the like. The ordered arrangement of nanofibers has been highly regarded by people because of their unique physical properties in electrical, magnetic and optical aspects.
However, most of the receiving devices of the current electrostatic spinning devices adopt a planar collector plate to collect fibers, and the arrangement of the fibers in this state is often disordered, which severely limits the application of the fibers and hinders the application and development of electrostatic spinning in production and life.
Disclosure of Invention
The invention aims to provide a preparation method of electrostatic spinning, which solves the technical problems in the prior art.
According to one aspect of the invention, an electrospinning receiving device includes a metal ring, a coverless hollow cylinder device, an electrode plate, and an air vortex conduit. The receiving device for electrostatic spinning comprises a metal ring, a uncovered hollow cylinder device, an electrode plate and an air vortex conduit. The metal ring is positioned right above the uncovered hollow cylinder device and is grounded; the electrode plate is completely attached to the outer bottom of the uncovered hollow cylinder device and is connected with a ground wire; one end of the air vortex conduit for air outlet is fixed on the inner wall of the uncovered hollow cylinder device, and one end of the air inlet is filled with dry gas.
Furthermore, the metal ring is an iron ring, a copper ring or any one of conductive rings.
Furthermore, the diameter of the uncovered hollow cylinder device is between 10 and 30cm, and the diameter of the metal ring is between 15 and 40 cm; when the metal ring is matched with the uncovered hollow cylinder device for use, the size of the metal ring is 3-10cm larger than that of the uncovered hollow cylinder device.
Furthermore, the metal ring is arranged at the position 3-30 cm above the uncovered hollow cylinder device.
Furthermore, a certain included angle is formed between the air outlet of the air vortex conduit and the bottom surface of the uncovered hollow cylinder device, and the included angle is controlled to be 5-45 degrees.
Further, the air swirl conduit is one or more strands.
Furthermore, one end of the air inlet of the air vortex conduit is connected with an air outlet of the air compressor, and the air inlet of the air compressor is connected with the drying device through the air conduit.
Furthermore, a heating facility and a drying agent are arranged in the drying device.
The electrostatic spinning device based on the receiving device further comprises: the spinning needle, the injector, the precise injection pump and the high-voltage direct-current power supply are all arranged right above the metal ring of the receiving device, the positive pole of the high-voltage direct-current power supply is connected with the spinning needle, and the negative pole of the high-voltage direct-current power supply is connected with the electrode plate of the receiving device.
A preparation method of electrostatic spinning comprises the following steps:
step 1: preparing a solution: adding polyacrylonitrile into N, N-dimethylformamide to prepare spinning solution with the mass concentration of 12-15%;
step 2: preparing spinning: filling the prepared spinning solution into a syringe with the volume of 10 ml; the spinning needle head is a No. 21 stainless steel needle head, and the spinning speed is controlled to be 1.5ml/h by a precise injection pump; the high-voltage power supply controls the voltage to be 15 KV; controlling the pressure of the auxiliary gas to be 80-200 kpa by using an air compressor;
and step 3: the spinning process comprises the following steps: spinning is carried out on the receiving device of the electrostatic spinning to prepare the nano fiber.
The invention has the following remarkable advantages:
1. the electrostatic spinning device is simple to build, only a receiving device of the traditional electrostatic spinning device is changed, and the preparation method is simple in process and good in repeatability.
2. The invention introduces air flow through the air compressor, provides gas vortex for the device and provides necessary conditions for the formation of macroscopic vortex-shaped nano fibers.
3. The existence of the iron ring provides an acting point for the fiber, and simultaneously, the fiber is blown upwards due to the existence of the gas vortex, and finally the orderly arranged nano fiber is formed,
4. the nano-fibers prepared by the method are orderly arranged, and the macroscopic vortex-shaped nano-fibers are prepared.
Drawings
FIG. 1 is a schematic structural composition diagram of an embodiment of the present invention, in which arrows indicate gas flow directions.
Fig. 2 is an enlarged view of a receiving device according to an embodiment of the present invention, in which arrows indicate the flow direction of gas.
Fig. 3 is a schematic view of a receiving device for double auxiliary air flows.
FIG. 4 is a scanning electron microscope image of the nanofiber prepared by the present invention.
Fig. 5(a) and 5(b) are a top view and a plan view of a nanofiber prepared according to the present invention.
In the figure, each label is: 1. the device comprises a metal ring, 2, a uncovered hollow cylinder device, 3, an air vortex conduit, 4, an electrode plate, 5, an air compressor, 6, a spinning needle, 7, an injector, 8, a precision injection pump, 9, a high-voltage direct-current power supply, 10, a gas drying device, 11, a temperature rise facility and 12, a drying agent.
Detailed Description
The invention is further illustrated by the following figures and examples.
Referring to fig. 1 to 3, a preparation method of electrostatic spinning, the receiving device comprises a metal ring 1, a uncovered hollow cylinder device 2, an air vortex conduit 3 and an electrode plate 4. Comprises a metal ring 1, a uncovered hollow cylinder device 2, an electrode plate 4 and an air vortex conduit 3. The metal ring 1 is positioned right above the uncovered hollow cylinder device 2, and the metal ring 1 is grounded; the electrode plate 4 is completely attached to the outer bottom of the uncovered hollow cylindrical device 2, and the electrode plate 4 is connected with a ground wire; one end of the air vortex conduit 3, which is used for giving out air, is fixed on the inner wall of the uncovered hollow cylinder device 2, and one end of the air vortex conduit, which is used for giving in air, is provided with air.
The metal ring 1 is an iron ring, a copper ring or any one conductive ring, the diameter of the metal ring is 15-40 cm, preferably, the iron ring is adopted in the embodiment, and the diameter of the iron ring is 35 cm; the diameter of the uncovered hollow cylinder device 2 is 10-30 cm, and when the metal ring 1 is matched with the uncovered hollow cylinder device 2 for use, the size of the metal ring is 3-10cm larger than that of the uncovered hollow cylinder device 2; preferably, the diameter of the uncovered hollow cylinder device 2 in the embodiment is 25cm, and the iron ring is 10cm larger than the uncovered hollow cylinder device 2; the metal ring 1 is arranged at the position 3-30 cm above the uncovered hollow cylinder device 2, and preferably, the iron ring is arranged at the position 10cm above the uncovered hollow cylinder device 2; an air outlet of the air vortex conduit 3 and the bottom surface of the uncovered hollow cylinder device 2 form a certain included angle, and the included angle is controlled to be 5-45 degrees, preferably, the air vortex conduit 3 in the embodiment adopts single-stranded auxiliary airflow, and the adjustment angle is 15 degrees; the air vortex conduit 3 is one or more than one, and the air vortex conduit 3 in the embodiment adopts a single auxiliary air flow.
One end of the air inlet of the air vortex conduit 3 is connected with the air outlet of the air compressor 5, the air inlet of the air compressor 5 is connected with the drying device 10 through the air conduit, and the drying device 10 is internally provided with a heating facility 11 and a drying agent 12.
Fig. 2 is a partially enlarged schematic structural view of a single-strand auxiliary airflow receiving device, and a spinning needle is positioned on a circle center extension line of an iron ring and a uncovered hollow cylinder device 2.
Fig. 3 is a schematic view of a partially enlarged double auxiliary airflow receiving device, which divides the auxiliary air provided by the air compressor into two flows through a splitter valve, and the other operations are the same as the single flow.
Experimental preparation, crimped nanofibers were prepared. Adding Polyacrylonitrile (PAN) into N, N-Dimethylformamide (DMF), performing ultrasonic accelerated dissolution to prepare a spinning solution with the mass concentration of 15%, then filling the spinning solution into a 10ml syringe 7, wherein a 21-grade stainless steel needle is adopted as a spinning needle 6, the distance between the spinning needle 6 and the upper plane of the uncovered cylinder device 2 is 15cm, the spinning speed is 1.5ml/h, a high-voltage power supply 9 provides 15KV high-voltage electricity, the auxiliary gas pressure is 130kpa, and the nanofiber is prepared, wherein a scanning electron microscope image of the nanofiber is shown in fig. 4, and real objects of the nanofiber are shown in fig. 5(a) and 5 (b).
Fig. 5(a) and 5(b) are a plan view and a plan view of the spiral nanofiber, respectively, and it can be seen from the drawings that a favorable macroscopic vortex form is formed.
When the electrostatic spinning device is used, the electrostatic spinning device is simple to build, and only a receiving device in the traditional electrostatic spinning device is required to be changed; the preparation method in the embodiment has simple process and good repeatability; the air flow is introduced through the air compressor 5, so that a gas vortex is provided for the device, and necessary conditions are provided for the formation of macroscopic vortex-shaped nano fibers, as shown in fig. 5(a) and 5 (b); the presence of the iron rings provides the points of force for the fibers, and simultaneously due to the presence of the gas vortex, the fibers are blown upwards, and finally the orderly arranged nano fibers are formed, as shown in fig. 4.
While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that the foregoing is merely preferred forms of the invention and that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An electrostatic spinning receiving device, characterized in that: the electrostatic spinning receiving device comprises a metal ring (1), a uncovered hollow cylinder device (2), an electrode plate (4) and an air vortex conduit (3); the metal ring (1) is positioned right above the uncovered hollow cylinder device (2), and the metal ring (1) is grounded; the electrode plate (4) is completely attached to the outer bottom of the uncovered hollow cylinder device (2), and the electrode plate (4) is connected with a ground wire; one end of the air outlet of the air vortex conduit (3) is fixed on the inner wall of the uncovered hollow cylinder device (2), and one end of the air inlet is filled with air; the metal ring (1) provides an acting point for the fibers, and simultaneously, due to the existence of gas vortex, the fibers are blown upwards, and finally, the orderly arranged nano fibers are formed.
2. The device for receiving electrospun filaments according to claim 1, wherein the metal ring (1) is an iron ring or a copper ring.
3. The electrospinning receiver according to claim 1, wherein the diameter of the uncovered hollow cylinder device (2) is between 10 and 30cm and the diameter of the eyelet (1) is between 15 and 40 cm; when the metal ring (1) is matched with the uncovered hollow cylinder device (2) for use, the diameter of the metal ring is 3-10cm larger than that of the uncovered hollow cylinder device (2).
4. The electrospinning receiver according to claim 1 or 2 or 3, characterized in that the eyelet (1) is located 3-30 cm above the uncovered hollow cylinder device (2).
5. The electrostatic spinning receiving device according to claim 1, characterized in that the air outlet of the air vortex conduit (3) forms an included angle with the bottom surface of the uncovered hollow cylinder device (2), and the included angle is controlled to be 5-45 degrees.
6. The electrospinning receiver according to claim 1 or 5, wherein the air swirl ducts (3) are one or more strands.
7. An electrospinning receiver as claimed in claim 1, wherein the air inlet end of the air vortex conduit (3) is connected to the air outlet of the air compressor (5), and the air inlet of the air compressor (5) is connected to the drying device (10) via the air conduit.
8. The electrospinning receiver according to claim 7, wherein the drying device (10) is internally provided with a heating device (11) and a drying agent (12).
9. An electrospinning device based on the receiving device of any one of claims 1 to 8, further comprising: the spinning needle head (6), the injector (7), the precise injection pump (8) and the high-voltage direct-current power supply (9) are used for spinning, the spinning needle head (6), the injector (7) and the precise injection pump (8) are all arranged right above the metal ring (1) of the receiving device, the positive pole of the high-voltage direct-current power supply (9) is connected with the spinning needle head (6), and the negative pole of the high-voltage direct-current power supply is connected with the electrode plate (4) of the receiving device.
10. An electrospinning method based on the receiving device of any one of claims 1 to 8, characterized in that: the method comprises the following steps:
step 1: preparing a solution: adding polyacrylonitrile into N, N-dimethylformamide to prepare spinning solution with the mass concentration of 12% -15%;
step 2: preparing spinning: filling the prepared spinning solution into a syringe (7) with the volume of 10 ml; the spinning needle head (6) adopts a No. 21 stainless steel needle head, and the spinning speed is controlled to be 1.5ml/h by a precise injection pump (8); the high-voltage power supply (9) controls the voltage to be 15 KV; the air compressor (5) controls the pressure of the auxiliary gas to be 80-200 kpa;
and step 3: the spinning process comprises the following steps: spinning on a receiving device of electrostatic spinning to prepare the orderly arranged nano fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263005.7A CN108728913B (en) | 2017-04-20 | 2017-04-20 | Electrostatic spinning receiving device and electrostatic spinning preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710263005.7A CN108728913B (en) | 2017-04-20 | 2017-04-20 | Electrostatic spinning receiving device and electrostatic spinning preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108728913A CN108728913A (en) | 2018-11-02 |
| CN108728913B true CN108728913B (en) | 2021-07-13 |
Family
ID=63933297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710263005.7A Expired - Fee Related CN108728913B (en) | 2017-04-20 | 2017-04-20 | Electrostatic spinning receiving device and electrostatic spinning preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108728913B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203715801U (en) * | 2014-01-16 | 2014-07-16 | 苏州大学 | Electrostatic spinning device |
| CN104562232A (en) * | 2015-01-09 | 2015-04-29 | 苏州大学 | Electrostatic spinning device for preparing orderly nanometer fibers |
| CN104562231A (en) * | 2015-01-09 | 2015-04-29 | 苏州大学 | Jet flow-controllable bubble electrospinning apparatus |
| CN105586644A (en) * | 2015-12-10 | 2016-05-18 | 厦门大学 | Electrospinning device for preparing fluffy nanometer fibers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009062630A (en) * | 2007-09-04 | 2009-03-26 | Univ Of Fukui | Method for melt-electrospinning and ultrafine fiber |
-
2017
- 2017-04-20 CN CN201710263005.7A patent/CN108728913B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203715801U (en) * | 2014-01-16 | 2014-07-16 | 苏州大学 | Electrostatic spinning device |
| CN104562232A (en) * | 2015-01-09 | 2015-04-29 | 苏州大学 | Electrostatic spinning device for preparing orderly nanometer fibers |
| CN104562231A (en) * | 2015-01-09 | 2015-04-29 | 苏州大学 | Jet flow-controllable bubble electrospinning apparatus |
| CN105586644A (en) * | 2015-12-10 | 2016-05-18 | 厦门大学 | Electrospinning device for preparing fluffy nanometer fibers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108728913A (en) | 2018-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Alghoraibi et al. | Different methods for nanofiber design and fabrication | |
| Zhou et al. | Jet deposition in near-field electrospinning of patterned polycaprolactone and sugar-polycaprolactone core–shell fibres | |
| CN102828260B (en) | Centrifugal needle-free electrostatic spinning device | |
| CN104451911B (en) | A kind of electrostatic assisted solution jet spinning device and spinning process | |
| CN108385173B (en) | Electrostatic spinning nozzle with separated control of liquid level curvature and electric field and spinning method thereof | |
| CN202107802U (en) | Helical-blade nanofiber generator and static helical spinning device | |
| CN104451912A (en) | Preparing device and method for forming micro-nanofiber | |
| CN105506758A (en) | Jagged annular needleless static spinning device and application method thereof | |
| CN103993376B (en) | A kind of electrostatic spinning apparatus for preparing bundles of nanofibers | |
| CN106480518B (en) | A kind of preparation method of electrostatic spinning collection device and gradient orientations structure nano fiber | |
| CN108193290B (en) | A kind of high-efficiency nano fibre device for spinning | |
| CN106868675A (en) | A kind of continuous preparation device of nanofiber covering yarn | |
| Zheng et al. | Polymer nanofibers prepared by low-voltage near-field electrospinning | |
| CN207484022U (en) | A kind of device for preparing mixed type micro-nano composite cellulosic membrane | |
| CN106222763A (en) | A kind of electrostatic spinning apparatus preparing spiral micro nanometer fiber continuously and method thereof | |
| CN103572386A (en) | Flat plate pinhole coaxial electrostatic spinning fiber composite spinning jet and spinning method thereof | |
| CN109208090A (en) | A kind of Novel needle electrostatic spinning apparatus and its spinning process | |
| CN108411383B (en) | Porous spherical electrostatic spinning nozzle and spinning method thereof | |
| CN103088444B (en) | A kind of method and device improving the many jets of electrostatic spinning | |
| CN106119995A (en) | A kind of solid syringe needle electrostatic spinning apparatus | |
| CN105648545B (en) | A kind of centrifugal spiral device for spinning | |
| CN203976994U (en) | A kind of electrostatic spinning apparatus of preparing bundles of nanofibers | |
| Yin et al. | Numerical approach to high-throughput of nanofibers by a modified bubble-electrospinning | |
| CN111286793A (en) | Multi-spiral-line electrostatic spinning device | |
| CN106048749B (en) | A kind of linear channel-shaped needle-free electrostatic spinning apparatus and spinning process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210713 |