CN112030244B - Electrostatic spinning device for preparing uniform film thickness - Google Patents
Electrostatic spinning device for preparing uniform film thickness Download PDFInfo
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- CN112030244B CN112030244B CN202010923360.4A CN202010923360A CN112030244B CN 112030244 B CN112030244 B CN 112030244B CN 202010923360 A CN202010923360 A CN 202010923360A CN 112030244 B CN112030244 B CN 112030244B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
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Abstract
The invention relates to an electrostatic spinning device for preparing uniform film thickness, which is characterized in that a constant-temperature water bath kettle, a conduit, a peristaltic constant-flow pump and a high-pressure generator are taken as a spinning system, and a spherical framework with adjustable radius, an upper hydraulic system and a lower hydraulic system are taken as a spinning collecting system, wherein the spherical framework with adjustable radius is composed of a plurality of hinged connecting rods, the inner radius of the spherical framework is continuously adjustable through a special combination mode, a spinning needle head can be always positioned at the spherical center position of the spherical framework, the inner side of the spherical framework is kept vertical to an electric field line in the spinning process, the electric potential energy of each point at the inner side is ensured to be equal, the probability that nano fibers are attached to any point is equal, and the thickness of a prepared nano film is ensured to be completely uniform. The radius of the collector provided by the invention is continuously adjustable, and the preparation of different types of fibers can be met.
Description
Technical Field
The invention relates to the technical field of nanofiber manufacturing, in particular to an electrostatic spinning device for preparing uniform film thickness.
Background
Fibers are widely found in nature, and rayon has been used in various industries for a long time. The fiber toughening technology is an effective means for improving the strength of the material, the mechanical strength of the material has an obvious size effect according to the Griffield fracture theory, and the Griffield et al deeply studies the Griffield fracture criterion in 2003 and points out that the smaller the component of the material is, the higher the fracture strength is. At the same time, the high-k project further assumes that when a material is made thin enough to reach a critical thickness in the nanometer range, the material may even exhibit a strength value close to the theoretical strength, at which point the failure is no longer governed by the griffis criterion, but rather by the strength of the atomic bonds under this regime, and the material is no longer sensitive to defects. Therefore, the mechanical property of the prepared nano-scale fiber can be greatly improved.
The electrostatic spinning technology is a simple and general method for obtaining continuous nano fibers, the electrostatic spinning is a special form of electrostatic atomization of high molecular fluid, and substances obtained by atomization and splitting are not micro liquid drops but polymer micro jet flows, so that the continuous nano fibers can run for a quite long distance and are finally solidified into fibers. The principle of electrostatic spinning is that coulomb force is used as spinning power, and when liquid is sprayed out from a spinning needle, electric field force acts between the spinning needle and a collector to perform directional movement, so that the movement direction of the liquid is related to the distribution of the electric field force.
The current electrostatic spinning collector mainly comprises a flat plate collector and a roller collector. The flat plate collecting device is characterized in that a flat plate conductor is used as a high-voltage negative electrode (or positive electrode), a spinning needle head is used as a positive electrode (or negative electrode), a solution is sprayed out from the needle head and flies to the flat plate under the action of an electric field force, but the spinning needle head can be regarded as a point-shaped electrode, and the electric field lines between the spinning needle head and the flat plate are distributed in a radial mode, so that the coulomb force at the position closest to the needle head is strongest, the coulomb force at the position farthest from the needle head is weakest, the electric field force distributed on the flat plate is not uniform, the probability of each position of the solution flying to the flat plate after the solution forms fibers is also different, and the solution is easy to agglomerate at the position of the flat plate closest to the needle head, and the phenomenon of thick middle and thin periphery is caused. The roller collector is a conductive roller made of a collecting device and keeps rotating in the spinning process, but the phenomenon of uneven electric field force distribution also exists, fibers are collected most at the position closest to the needle head, and less fibers are collected at the position far away from the needle head.
For example, the problem of uneven thickness of the fiber film obtained by spinning can be improved to a certain extent by reciprocating the spinning needle above the collector, but the obtained fiber film cannot be completely uniform due to uneven distribution of the electric field force. CN203904515U discloses an arc collecting device, which makes the electric field force equal in the plane of the needle, and makes the fiber uniformly distributed on the plane, but the arc plane can only ensure that the electric field force is completely equal in the plane of the needle, and the electric field force above and below the plane can still be reduced due to the increase of the absolute distance from the needle, so the fiber obtained by the method has thinner upper and lower ends and thicker middle. The prior spherical collector has the radius which cannot be continuously adjusted, the spinning distance is adjusted according to the different requirements of solution conductivity and viscosity when preparing different types of nanofibers, if the spinning distance requirement is met and the spinning needle cannot be guaranteed to be positioned at the spherical center of the spherical collector, the electric field force distribution is still uneven, and the thickness of the obtained nanofiber membrane is also uneven.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an electrostatic spinning device for preparing fibers with uniform film thickness, which can be used for preparing fiber films with completely uniform thickness, has continuously adjustable radius and can meet the preparation requirements of different types of fibers.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an electrostatic spinning device for preparing uniform film thickness comprises a spinning system and a spinning collecting system, wherein the spinning collecting system comprises a spherical framework with adjustable radius, an upper hydraulic system and a lower hydraulic system;
the radius-adjustable spherical skeleton is a hemispherical skeleton structure formed by spherical array through a basic array unit, and the basic array unit comprises an inner layer hinge and an outer layer hinge;
the upper hydraulic system is arranged above the spherical framework with the adjustable radius and comprises a spinning needle head and an upper hydraulic rod, and the spinning needle head is arranged at the lower end of the upper hydraulic rod; the spinning system provides spinning solution for the spinning needle head;
the lower hydraulic system is arranged below the spherical framework with the adjustable radius and comprises a lower hydraulic rod, and the lower hydraulic rod adjusts the radius of the spherical framework with the adjustable radius by adjusting the distance between the inner layer hinge and the outer layer hinge;
the upper hydraulic system is connected with the lower hydraulic system through a communicating pipe, the communicating pipe is filled with hydraulic oil, the diameter of the upper hydraulic rod is the same as that of the lower hydraulic rod, and when the lower hydraulic rod moves upwards, the upper hydraulic rod moves downwards and keeps the spinning needle head always positioned in the center of the sphere of the spherical framework with the adjustable radius.
In the scheme, the inner layer hinge comprises an inner layer winch, inner layer connecting rings and inner layer connecting rods, wherein the inner layer connecting rings are uniformly arranged on the inner layer winch along the circumferential direction, and each inner layer connecting ring is connected with one end of one inner layer connecting rod; the outer layer hinge comprises an outer layer winch, outer layer connecting rings and outer layer connecting rods, the outer layer connecting rings are uniformly arranged on the outer layer winch along the circumferential direction, and each outer layer connecting ring is connected with one end of one outer layer connecting rod; the middle part of the inner connecting rod is hinged with the middle part of the corresponding outer connecting rod, the other end of the inner connecting rod is hinged with the inner connecting rod of the adjacent basic array unit, and the other end of the outer connecting rod is hinged with the outer connecting rod of the adjacent basic array unit.
In the above scheme, the number of the inner layer connecting rings in the basic array unit is 4 or 3, and the number of the outer layer connecting rings is correspondingly equal.
In the scheme, the spinning collecting device further comprises a mounting bracket, the mounting bracket comprises a lower base, an upper base and a supporting rod, and the supporting rod is positioned between the lower base and the upper base;
an outer layer winch of the basic array unit of the spherical framework with the adjustable radius positioned at the bottom is fixed on the lower base through a support column, and an inner layer winch is connected with the upper end of the lower hydraulic rod; the upper hydraulic rod is fixedly arranged on the upper base.
In the above scheme, the upper hydraulic system further includes an upper hydraulic sleeve, the upper hydraulic rod is mounted in the upper hydraulic sleeve, and the upper hydraulic sleeve is fixed to the upper base; the lower hydraulic system further comprises a lower hydraulic sleeve, the lower hydraulic rod is arranged in the lower hydraulic sleeve, and the lower hydraulic sleeve is fixed on the lower base through a cross beam and a support column.
In the scheme, the spinning system comprises a constant-temperature water bath kettle, a peristaltic constant-flow pump and a high-pressure generator, wherein the constant-temperature water bath kettle is connected with the peristaltic constant-flow pump, and the peristaltic constant-flow pump is connected with the spinning needle head so as to convey the spinning solution in the constant-temperature water bath kettle to the spinning needle head; the positive pole of the high-voltage generator is connected with the spinning needle head, and the negative pole of the high-voltage generator is connected with the tinfoil or aluminum foil paper laid inside the spherical framework with the adjustable radius.
In the above scheme, radius adjustable spherical skeleton, last hydraulic system and lower hydraulic system are made by polytetrafluoroethylene, and the inside tinfoil or aluminium foil paper of having laid of radius adjustable spherical skeleton, communicating pipe is made by silica gel.
The invention has the beneficial effects that:
(1) the invention provides an electrostatic spinning device for preparing uniform film thickness, wherein a collector is spherical, a spinning needle is positioned at the center of a sphere, electric field force is distributed in a radial manner in the spinning process, coulomb force of each point on the collector is completely equal, the probability that fibers fly to any point is equal, and the fiber film with completely uniform thickness can be prepared.
(2) The radius of the collector provided by the invention is continuously adjustable, and the preparation of different types of fibers can be met.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic structural view of an electrospinning apparatus according to the present invention for producing a uniform film thickness while being adjusted to a large radius;
FIG. 2 is a schematic structural view of an electrospinning apparatus according to the present invention for preparing a uniform film thickness adjusted to a small radius;
FIG. 3 is a schematic structural view of the radius adjustable spherical skeleton adjusted to a large radius;
FIG. 4 is a schematic structural view of a radius adjustable spherical skeleton adjusted to a small radius;
FIG. 5 is a schematic diagram of the basic array unit of a radius adjustable spherical skeleton;
fig. 6 is a schematic structural diagram of the upper hydraulic system and the lower hydraulic system.
In the figure: 11. a constant-temperature water bath kettle; 12. a peristaltic constant flow pump; 13. a conduit; 20. a spherical skeleton with adjustable radius; 21. an inner layer hinge; 211. an inner layer capstan; 212. an inner layer connecting ring; 213. an inner layer connecting rod; 22. an outer layer hinge; 221. an outer layer capstan; 222. an outer layer connecting ring; 223. an outer layer connecting rod; 30. an upper hydraulic system; 31. a spinning needle head; 32. an upper hydraulic rod; 33. an upper hydraulic sleeve; 40. a lower hydraulic system; 41. a lower hydraulic rod; 42. a lower hydraulic sleeve; 51. a lower base; 52. an upper base; 53. a support bar; 54. a pillar; 55. a cross beam; 60. a communication pipe is provided.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1-2, the electrostatic spinning apparatus for preparing a uniform film thickness provided by the present invention comprises a spinning system and a spinning collecting system.
The spinning system comprises a constant-temperature water bath 11, a peristaltic constant-flow pump 12 and a high-pressure generator (not shown), wherein the constant-temperature water bath 11 is connected with the peristaltic constant-flow pump 12 through a conduit 13, and the peristaltic constant-flow pump 12 is connected with a spinning needle 31 through the conduit 13 so as to convey a spinning solution to the spinning needle 31.
The spinning collection system comprises a spherical skeleton 20 with an adjustable radius, an upper hydraulic system 30, a lower hydraulic system 40 and a mounting bracket. The mounting bracket is used as a mounting carrier of the whole spinning collecting system and comprises a lower base 51, an upper base 52 and a supporting rod 53, wherein the supporting rod 53 is positioned between the lower base 51 and the upper base 52.
The radius adjustable spherical skeleton 20 is a hemispherical skeleton structure formed by spherically arraying basic array units, as shown in fig. 5, the basic array units include an inner layer hinge 21 and an outer layer hinge 22. The inner layer hinge 21 includes an inner layer capstan 211, inner layer connecting rings 212, and inner layer links 213, the inner layer connecting rings 212 are uniformly installed on the inner layer capstan 211 along the circumferential direction, and each inner layer connecting ring 212 is connected to one end of one inner layer link 213. The outer layer hinge 22 comprises an outer layer winch 221, outer layer connecting rings 222 and outer layer connecting rods 223, wherein the outer layer connecting rings 222 are uniformly arranged on the outer layer winch 221 along the circumferential direction, and each outer layer connecting ring 222 is connected with one end of one outer layer connecting rod 223. The middle part of the inner connecting rod 213 is hinged with the middle part of the corresponding outer connecting rod 223, the other end of the inner connecting rod 213 is hinged with the inner connecting rod 213 of the adjacent basic array unit, and the other end of the outer connecting rod 223 is hinged with the outer connecting rod 223 of the adjacent basic array unit.
Referring to fig. 6, the upper hydraulic system 30 is disposed above the radius adjustable spherical skeleton 20 for adjusting the position of the spinning needle 31. The upper hydraulic system 30 comprises a spinning needle 31, an upper hydraulic rod 32 and an upper hydraulic sleeve 33, the upper hydraulic sleeve 33 is fixedly arranged on the upper base 52, the upper hydraulic rod 32 is arranged in the upper hydraulic sleeve 33, and the spinning needle 31 is arranged at the lower end of the upper hydraulic rod 32. The lower hydraulic system 40 is arranged below the radius-adjustable spherical skeleton 20 and is used for adjusting the radius of the spherical skeleton. The lower hydraulic system 40 comprises a lower hydraulic rod 41 and a lower hydraulic sleeve 42, the lower hydraulic sleeve 42 is fixed on the lower base 51 through a cross beam 55 and a support column 54, an outer layer winch 221 of the basic array unit with the radius-adjustable spherical framework 20 at the bottom is fixed on the lower base 51 through the support column 54, and an inner layer winch 211 is connected with the upper end of the lower hydraulic rod 41. The distance between the inner layer capstan 211 and the outer layer capstan 221 is adjusted by the lower hydraulic rod 41, so as to adjust the radius of the radius-adjustable spherical skeleton 20, and the adjustment can be continuous. When the lower hydraulic rod 41 pushes the inner layer winch to move upwards, the distance between the inner layer hinge 21 and the outer layer hinge 22 is increased, and the connecting rods are driven to contract through the connecting rings on the winch, so that the connecting rods for connecting the winch are gathered towards the winch to achieve the purpose of contracting the radius of the spherical framework; on the contrary, when the lower hydraulic rod 41 pushes the inner layer winch to move downwards, the purpose of enlarging the radius of the spherical framework is achieved.
The upper hydraulic system 30 is connected with the lower hydraulic system 40 through a communication pipe 60, the communication pipe 60 is filled with hydraulic oil, the diameters of the upper hydraulic rod 32 and the lower hydraulic rod 41 are the same, so that when the lower hydraulic rod 41 moves upwards, the upper hydraulic rod 32 moves downwards and the spinning needle 31 is kept to be located at the center of a spherical skeleton all the time.
The radius of the spherical skeleton is continuously adjustable, the spinning needle 31 can be always positioned at the spherical center of the spherical skeleton, the inner side of the spherical skeleton is kept perpendicular to electric field lines in the spinning process, the electric potential energy of each point at the inner side is equal, the probability that the nano fibers are attached to any point is equal, and the thickness of the prepared nano film is completely uniform
Further preferably, in this embodiment, the number of the inner connection rings 212 in the basic array unit is 4 or 3, and the number of the outer connection rings 222 is correspondingly equal.
Further preferably, in this embodiment, tinfoil or aluminum foil is laid inside the spherical skeleton 20 with adjustable radius. The high-voltage generator needs to provide a high-voltage electric field of 5KV-20KV, and in the spinning process, the positive electrode of the high-voltage generator is connected with the spinning needle 31, and the negative electrode of the high-voltage generator is connected with the tinfoil or aluminum foil paper laid inside the spherical framework 20 with the adjustable radius.
Further preferably, in this embodiment, the radius-adjustable spherical skeleton 20, the upper hydraulic system 30, and the lower hydraulic system 40 are made of teflon, and the communicating pipe is made of silica gel.
The radius of the collector provided by the invention is continuously adjustable, and the preparation of different types of fibers can be met, for example:
(1) the device of the invention is adopted to prepare the nano alumina fiber membrane with uniform thickness
1. Preparing an aluminum nitrate spinning solution: aluminum nitrate and deionized water were mixed in a 1: 9, adding polyoxyethylene accounting for 3 percent of the total weight of the solution, and fully stirring until the polyoxyethylene is completely dissolved;
2. adding the solution into a beaker shown in figure 1, and keeping high-speed stirring and heating in a water bath at 30 ℃;
3. adjusting the position of a spinning needle head 31, simultaneously, automatically pushing a lower hydraulic system 40 by a communicating pipe to adjust the radius of the spherical skeleton 20 with the adjustable radius by 15cm, simultaneously, laying a layer of aluminum foil paper inside the spherical skeleton 20 with the adjustable radius and connecting the aluminum foil paper with the negative pole of a power supply, wherein the spinning needle head 31 is positioned at the center of the sphere and is connected with the positive pole of the power supply;
4. and (3) opening the peristaltic constant flow pump 12 and a high-voltage power supply, regulating the flow rate to 2ml/h, regulating the voltage to 10KV, and spinning for 5h to obtain the nano alumina fiber membrane with uniform thickness.
Because the aluminum nitrate solution has certain conductivity, the high-voltage power supply does not need to be modulated to be very high (8-10 KV), meanwhile, in order to reduce the action of electric field force, the spinning needle head 31 and the collector need to keep a larger distance more than or equal to 15cm), and the thickness of the obtained nano alumina fiber film is completely uniform.
(2) The device of the invention is adopted to prepare the carbon nanofiber membrane with uniform thickness
1. Preparation of polyvinylpyrrolidone spinning solution: mixing polyvinylpyrrolidone and deionized water in a ratio of 1: 9, fully stirring until the mixture is completely dissolved;
2. adding the solution into a beaker shown in figure 1, and keeping high-speed stirring and heating in a water bath at 30 ℃;
3. adjusting the position of a spinning needle head 31, simultaneously, automatically pushing a lower hydraulic system 40 by a communicating pipe to adjust the radius of the spherical skeleton 20 with the adjustable radius by 10cm, simultaneously, laying a layer of aluminum foil paper inside the spherical skeleton 20 with the adjustable radius and connecting the aluminum foil paper with the negative pole of a power supply, wherein the spinning needle head 31 is positioned at the center of the sphere and is connected with the positive pole of the power supply;
4. the peristaltic constant flow pump 12 and a high-voltage power supply are started, the flow rate is adjusted to 1.5ml/h, the voltage is adjusted to 18KV, and spinning is carried out for 6 h;
5. and (3) cutting off a power supply, closing the peristaltic constant flow pump 12, taking the fiber membrane down, and carbonizing the fiber membrane for 1h at 800 ℃ in a muffle furnace in a nitrogen atmosphere to obtain the carbon nanofiber membrane with uniform thickness.
Because the organic polymer has poor conductivity, a high voltage power supply needs higher voltage (above 15 KV), and meanwhile, in order to increase the electric field force, the distance between the spinning needle 31 and the collector needs to be very close (8-10cm), and the thickness of the obtained carbon nanofiber film is completely uniform.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. The electrostatic spinning device for preparing uniform film thickness comprises a spinning system and a spinning collecting system, and is characterized in that the spinning collecting system comprises a spherical framework with adjustable radius, an upper hydraulic system and a lower hydraulic system;
the radius-adjustable spherical skeleton is a hemispherical skeleton structure formed by spherical array through a basic array unit, and the basic array unit comprises an inner layer hinge and an outer layer hinge; the inner layer hinge comprises an inner layer winch, inner layer connecting rings and inner layer connecting rods, the inner layer connecting rings are uniformly arranged on the inner layer winch along the circumferential direction, and each inner layer connecting ring is connected with one end of one inner layer connecting rod; the outer layer hinge comprises an outer layer winch, outer layer connecting rings and outer layer connecting rods, the outer layer connecting rings are uniformly arranged on the outer layer winch along the circumferential direction, and each outer layer connecting ring is connected with one end of one outer layer connecting rod; the middle part of the inner connecting rod is hinged with the middle part of the corresponding outer connecting rod, the other end of the inner connecting rod is hinged with the inner connecting rod of the adjacent basic array unit, and the other end of the outer connecting rod is hinged with the outer connecting rod of the adjacent basic array unit;
the upper hydraulic system is arranged above the spherical framework with the adjustable radius and comprises a spinning needle head and an upper hydraulic rod, and the spinning needle head is arranged at the lower end of the upper hydraulic rod; the spinning system provides spinning solution for the spinning needle head;
the lower hydraulic system is arranged below the spherical framework with the adjustable radius and comprises a lower hydraulic rod, and the lower hydraulic rod adjusts the radius of the spherical framework with the adjustable radius by adjusting the distance between the inner layer hinge and the outer layer hinge so as to enable the radius of the spherical framework with the adjustable radius to be continuously adjustable;
the upper hydraulic system and the lower hydraulic system are connected through a communicating pipe, the inside of the communicating pipe is filled with hydraulic oil, the diameters of the upper hydraulic rod and the lower hydraulic rod are the same, when the lower hydraulic rod moves upwards, the upper hydraulic rod moves downwards and the spinning needle head is kept to be located at the sphere center of the spherical framework with the adjustable radius all the time; the spherical skeleton with the adjustable radius, the upper hydraulic system and the lower hydraulic system are made of polytetrafluoroethylene, tinfoil paper or aluminum foil paper is laid inside the spherical skeleton with the adjustable radius, and the communicating pipe is made of silica gel.
2. The electrospinning device of claim 1, wherein the number of the inner connection rings in the basic array unit is 4 or 3, and the number of the outer connection rings is equal.
3. The electrospinning device of claim 1, wherein the spinning collection device further comprises a mounting bracket, the mounting bracket comprises a lower base, an upper base and a support rod, and the support rod is positioned between the lower base and the upper base;
an outer layer winch of the basic array unit of the spherical framework with the adjustable radius positioned at the bottom is fixed on the lower base through a support column, and an inner layer winch is connected with the upper end of the lower hydraulic rod; the upper hydraulic rod is fixedly arranged on the upper base.
4. The electrospinning apparatus of claim 3, wherein the upper hydraulic system further comprises an upper hydraulic sleeve, the upper hydraulic rod is mounted in the upper hydraulic sleeve, and the upper hydraulic sleeve is fixed to the upper base; the lower hydraulic system further comprises a lower hydraulic sleeve, the lower hydraulic rod is arranged in the lower hydraulic sleeve, and the lower hydraulic sleeve is fixed on the lower base through a cross beam and a support column.
5. The electrospinning apparatus according to claim 1, wherein the spinning system comprises a constant-temperature water bath, a peristaltic constant-flow pump and a high-pressure generator, the constant-temperature water bath is connected with the peristaltic constant-flow pump, and the peristaltic constant-flow pump is connected with the spinning needle head to deliver the spinning solution in the constant-temperature water bath to the spinning needle head; the positive pole of the high-voltage generator is connected with the spinning needle head, and the negative pole of the high-voltage generator is connected with the tinfoil or aluminum foil paper laid inside the spherical framework with the adjustable radius.
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| JPS62231007A (en) * | 1986-03-26 | 1987-10-09 | Mitsubishi Heavy Ind Ltd | Spinning apparatus for carbon fiber |
| JP4523013B2 (en) * | 2007-03-22 | 2010-08-11 | パナソニック株式会社 | Nonwoven fabric manufacturing equipment |
| EP2045375B1 (en) * | 2007-10-02 | 2011-03-16 | Stem Cell Technology Company | Apparatus and method for electrospinning 2D- or 3D-structures of micro- or nano-fibrous materials |
| CN101280469B (en) * | 2008-05-09 | 2011-04-20 | 宁波大学 | Electro-spinning device for preparing porous nano-fibre |
| CN101487172B (en) * | 2009-02-19 | 2010-10-20 | 浙江大学 | Multi-nozzle and spherical surface film-forming electrostatic spinning film production apparatus for hollow circular ring pipe |
| US8551390B2 (en) * | 2010-04-12 | 2013-10-08 | The UAB Foundation | Electrospinning apparatus, methods of use, and uncompressed fibrous mesh |
| CN201924106U (en) * | 2010-11-22 | 2011-08-10 | 北京化工大学 | Device adopting electrostatic spinning for continuous preparation of non-woven fabric products |
| JP5637479B2 (en) * | 2010-12-06 | 2014-12-10 | 光弘 高橋 | Nanofiber manufacturing equipment |
| CN102528905B (en) * | 2012-03-11 | 2013-10-23 | 唐敏峰 | Anvil pressing machine |
| JP5719421B2 (en) * | 2012-10-11 | 2015-05-20 | 花王株式会社 | Electrospinning apparatus and nanofiber manufacturing apparatus having the same |
| CN104018237B (en) * | 2014-06-18 | 2016-08-24 | 清华大学 | Static spinning membrane thickness adjusting apparatus and electrostatic spinning machine |
| CN203904515U (en) * | 2014-06-19 | 2014-10-29 | 中国药科大学 | Electrostatic spinning device |
| EP3408438B1 (en) * | 2016-01-27 | 2023-11-29 | Indian Institute of Technology Delhi | Apparatus and process for uniform deposition of polymeric nanofibers on substrate |
| CN106087078A (en) * | 2016-06-21 | 2016-11-09 | 华南理工大学 | A kind of receptor for electrostatic spinning, electrostatic spinning apparatus, there is the preparation method of the three-dimensional manometer fibre structure of multi-stage porous |
| CN109778324B (en) * | 2019-01-25 | 2023-09-15 | 青岛科技大学 | Spherical free interface melt electrostatic spinning device |
| CN110129899B (en) * | 2019-06-18 | 2020-06-09 | 广东工业大学 | Needleless electrostatic spinning device |
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