CN101818381A - Novel magnetic stirring electrostatic spinning spray head and using method thereof - Google Patents
Novel magnetic stirring electrostatic spinning spray head and using method thereof Download PDFInfo
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- CN101818381A CN101818381A CN 201010159523 CN201010159523A CN101818381A CN 101818381 A CN101818381 A CN 101818381A CN 201010159523 CN201010159523 CN 201010159523 CN 201010159523 A CN201010159523 A CN 201010159523A CN 101818381 A CN101818381 A CN 101818381A
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Abstract
The invention relates to a novel magnetic stirring electrostatic spinning spray head and a using method thereof. The spray head comprises a spinneret, a magnetic stirrer, a rotary magneton, a metal cylinder and a shielding cover, wherein the magnetic stirrer is arranged under the spinneret and drives the magneton arranged in the spinneret to rotate by magnetic force to properly stirring polymer solution in the spray head; the metal cylinder is floated on the surface of the polymer solution, is contacted with inner walls of the spinneret through flexible contacts, and can float along with the polymer solution level up and down; and the spinneret is connected with high voltage static and can more easily draw a plurality of jet flows out under the action of an electrostatic field. Due to the adoption of the spray head for nanofiber production, the use ratio of the polymer solution is improved, the production efficiency is high, and large-scale production of nanofibers is realized by assembling a plurality of spray heads.
Description
Technical field
The present invention relates to the electrostatic spinning apparatus field, particularly relate to a kind of novel magnetic stirring electrostatic spinning spray head and using method thereof.
Background technology
In recent years, because the rapid intensification of nanosecond science and technology research makes this spining technology for preparing the nano-scale fiber of electrostatic spinning evoke people to its great interest of furtheing investigate.At present, electrostatic spinning has become and has produced most important, the effective method of nanofiber.
High-voltage electrostatic spinning be with on polymer solution or the melt band several thousand to volt high-pressure electrostatics up to ten thousand, charged drop is accelerated at Taylor's vertex of a cone under the electric field force effect, when electric field force was enough big, the polymer drop can overcome surface tension and form and spray thread.The refinement that under effects such as electric field force, viscous resistance, surface tension, is stretched of charged polymer jet, simultaneously charged jet in electric field owing to existing surface charge to bend.Thread is solvent evaporation or curing in course of injection, finally drops on the receiving system, forms the nanofiber mats of similar nonwoven fabric.In the electrostatic spinning process, the solution thread is stretched by the traction of big multiple, has certain orientation texture.
High-voltage electrostatic spinning is one of research focus of nanofiber preparation field always.About the result of study of electrostatic spinning, this pertinent literature in several years all is index to be increased.Traditional electrostatic spinning nozzle orifice diameter many places are in micron order, promptly common needle-based spinning head, and this kind method adopts mechanical force to promote solution and extrudes, and form taylor cone in electrostatic field, thereby withdrawing goes out one or more injection stream.The spinneret orifice clogging appears in this kind form spinning head easily, causes produce interrupting, and influences production efficiency, and easy care not.Research at present have or not the needle-based spinning head, this kind spinning head mostly is open type, polymer solution directly contact with air, the form that adopting makes progress sprays thread.But this kind method makes the polymer solution surface cure owing to solvent is more volatile, cause the withdrawing difficulty, is difficult to form stable jet under the equal conditions, influences carrying out smoothly of spinning process.
Summary of the invention
Technical problem to be solved by this invention provides a kind of novel magnetic stirring electrostatic spinning spray head and using method thereof, avoided the drawback that the needle-based spinning head stops up easily, efficient is lower, has improved the shortcoming that the open type spinning head is difficult to form jet.
The technical solution adopted for the present invention to solve the technical problems is: a kind of novel magnetic stirring electrostatic spinning spray head is provided, comprise spinning head, magnetic stirring apparatus, rotation magneton, metal cylinder and radome, described spinning head inner bottom part disposes described rotation magneton; Described magnetic stirring apparatus is arranged on described spinning head below, is used to drive described rotation magneton and rotates; Described radome is arranged between described spinning head and the described magnetic stirring apparatus; When carrying out electrostatic spinning, described metal cylinder is configured in described spinning head inside, floats on the top layer of polymer solution, and its periphery contacts with described spinning head inwall; Described spinning head links to each other with high-voltage static power by power line.
The internal layer of the spinning head of described novel magnetic stirring electrostatic spinning spray head is a sheet metal, and shell is the lucite shell.
The metal cylinder of described novel magnetic stirring electrostatic spinning spray head is the light-weight metal grid, and the solder joint of upper surface is most advanced and sophisticated solder joint, and periphery is provided with flexible contacts.
The magnetic stirring apparatus of described novel magnetic stirring electrostatic spinning spray head adopts direct current supply.
The liquid level of the polymer solution in the described novel magnetic stirring electrostatic spinning spray head is higher than described rotation magneton.
The technical solution adopted for the present invention to solve the technical problems is: a kind of using method of novel magnetic stirring electrostatic spinning spray head also is provided, may further comprise the steps:
(1) in spinning head, is full of polymer solution;
(2) open magnetic stirring apparatus, drive the rotation magneton and rotate;
(3) to the logical high-pressure electrostatic of going up of spinning head, under the effect of rotation magneton and metal cylinder, form taylor cone, upwards penetrate jet;
(4) collect jet by gathering-device, form nanofiber.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the present invention compared with prior art, have following advantage and good effect: the nozzle end that the present invention uses, be open type needleless hair style spinning head, avoided the generation of syringe needle clogging, need not frequent the replacing and the cleaning spinneret orifice, improved production efficiency greatly; Adopt the magnetic agitating device to drive and be placed in the interior rotation magneton stirring of spinning head end; make solution be in flow regime; cooperate the metal grid lines that floats on the polymer solution top layer; can under same voltage effect, form a plurality of taylor cones; thereby easier formation multiple jets; improve the stability of spinning head spinning, improved the reliability of existing apparatus, can realize the continuous and large-scale production of nanofiber.
Description of drawings
Fig. 1 is a spinning head apparatus structural representation of the present invention;
Fig. 2 is a spinning head vertical view of the present invention;
Fig. 3 is a spinning head cross-sectional view of the present invention;
Fig. 4 is a metal cylinder schematic diagram of the present invention.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiments of the present invention relate to a kind of novel magnetic stirring electrostatic spinning spray head, as depicted in figs. 1 and 2, comprise spinning head 1, magnetic stirring apparatus 2, rotation magneton 3, metal cylinder 4 and radome 5, described spinning head 1 inner bottom part disposes described rotation magneton 3, and spinning head 1 cooperates formation magnetic spinning head with rotation magneton 3; Described magnetic stirring apparatus 2 is arranged on described spinning head 1 below, be equivalent to be arranged on cooperates with rotation magneton 3 and form below the magnetic spinning head by spinning head 1, pass through magneticaction, the rotation magneton 3 that driving is positioned at spinning head 1 inside rotates, wherein, magnetic stirring apparatus 2 adopts the DC level power supply, and the spinning electrostatic field is not disturbed; Described radome 5 is arranged between described spinning head 1 and the described magnetic stirring apparatus 2, with the interference of this electric field shielding to magnetic field; When carrying out electrostatic spinning, the polymer solution of packing in spinning head 1, the liquid level of general polymerization thing solution are higher than rotation magneton 3, and described metal cylinder 4 is configured in described spinning head 1 inside, float on the top layer of polymer solution, its periphery contacts with described spinning head 1 inwall; Described spinning head 1 links to each other with high-voltage static power by power line.
As shown in Figure 3, it is sheet metal 1a that described spinning head 1 adopts inwall, and shell is the structure of lucite 1b, adopts lucite 1b can shield the interference of external electrical field as shell, makes electrostatic field more stable.Shown in Figure 4 is metal cylinder 4, and this metal cylinder 4 is the light-weight metal grid, is convenient to float over the polymer solution top layer, and the solder joint on the metal cylinder 4 adopts most advanced and sophisticated solder joint, and periphery is provided with flexible contacts.When electrostatic spinning, magnetic stirring apparatus 2 passes through magneticaction, driving rotation magneton 3 rotates, be stirred in the polymer solution in the spinning head 1, metal cylinder 4 is along with polymer solution fluctuates, and certain rotation is arranged, and contacts with the metal inner surface 1a of spinning head 1 by flexible contacts, can make the polymer solution uniform charged impelling the formation of taylor cone, and promote to form jet by the metal tip solder joint on the grid lines.
Embodiments of the present invention also relate to a kind of novel magnetic stirring electrostatic spinning spray head using method, may further comprise the steps: (1) is full of polymer solution in spinning head; (2) open magnetic stirring apparatus, under magneticaction, drive the rotation magneton and rotate, thereby stir polymer solution flow; (3) to the logical high-pressure electrostatic of going up of spinning head, under the effect of rotation magneton and metal cylinder, form taylor cone, upwards penetrate jet; (4) collect jet by gathering-device, form nanofiber.
Further specify this using method with polyvinyl alcohol as polymer solution below.Earlier poly-vinyl alcohol solution is injected spinning head 1 by automatic infusion device, unlatching is arranged at the magnetic stirring apparatus 2 of spinning head 1 below, under magneticaction, the rotation magneton 3 that drives in the spinning head 1 rotates with the speed of 120rpm, thereby stirring the poly-vinyl alcohol solution appropriateness flows, simultaneously, metal cylinder 4 and the relative motion of poly-vinyl alcohol solution liquid level, and tangent with the poly-vinyl alcohol solution liquid level.The voltage of high-voltage static power is adjusted to 55V, again spinning head 1 is connected high-voltage static power, after adding electrostatic field, spinning head 1 promotes to form taylor cone under the acting in conjunction of rotation magneton 3 and metal cylinder 4, upwards extract tens of even up to a hundred jets out, solution evaporation is collected by gathering-device (as base cloth or fiber collecting curtain), form the nanofiber mats that diameter is about 250nm, weight is 1.5g/m
2Gathering-device is with the certain speed translation during collection, and matches with the reciprocating motion of electrostatic spinning nozzle, and receiving range is approximately 20cm.
Be not difficult to find that the nozzle end that the present invention uses for open type needleless hair style spinning head, has been avoided the generation of syringe needle clogging, need not frequent the replacing and the cleaning spinneret orifice, improved production efficiency greatly; Adopt the magnetic agitating device to drive and be placed in the interior rotation magneton stirring of spinning head end; make solution be in flow regime; cooperate the metal grid lines that floats on the polymer solution top layer; can under same voltage effect, form a plurality of taylor cones; thereby easier formation multiple jets; improve the stability of spinning head spinning, improved the reliability of existing apparatus, can realize the continuous and large-scale production of nanofiber.
Claims (6)
1. novel magnetic stirring electrostatic spinning spray head, comprise spinning head (1), magnetic stirring apparatus (2), rotation magneton (3), metal cylinder (4) and radome (5), it is characterized in that described spinning head (1) inner bottom part disposes described rotation magneton (3); Described magnetic stirring apparatus (2) is arranged on described spinning head (1) below, is used to drive described rotation magneton (3) and rotates; Described radome (5) is arranged between described spinning head (1) and the described magnetic stirring apparatus (2); When carrying out electrostatic spinning, described metal cylinder (4) is configured in described spinning head (1) inside, floats on the top layer of polymer solution, and its periphery contacts with described spinning head (1) inwall; Described spinning head (1) links to each other with high-voltage static power by power line.
2. novel magnetic stirring electrostatic spinning spray head according to claim 1 is characterized in that, the internal layer of described spinning head (1) is sheet metal (1a), and shell is lucite shell (1b).
3. novel magnetic stirring electrostatic spinning spray head according to claim 1 is characterized in that, described metal cylinder (4) is the light-weight metal grid, and the solder joint of upper surface is most advanced and sophisticated solder joint, and periphery is provided with flexible contacts.
4. novel magnetic stirring electrostatic spinning spray head according to claim 1 is characterized in that, described magnetic stirring apparatus (2) adopts direct current supply.
5. novel magnetic stirring electrostatic spinning spray head according to claim 1 is characterized in that, the liquid level of described polymer solution is higher than described rotation magneton (3).
6. a method of using novel magnetic stirring electrostatic spinning spray head as claimed in claim 1 is characterized in that, may further comprise the steps:
(1) in spinning head, is full of polymer solution;
(2) open magnetic stirring apparatus, drive the rotation magneton and rotate;
(3) to the logical high-pressure electrostatic of going up of spinning head, under the effect of rotation magneton and metal cylinder, form taylor cone, upwards penetrate jet;
(4) collect jet by gathering-device, form nanofiber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101595232A CN101818381B (en) | 2010-04-27 | 2010-04-27 | Novel magnetic stirring electrostatic spinning spray head and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101595232A CN101818381B (en) | 2010-04-27 | 2010-04-27 | Novel magnetic stirring electrostatic spinning spray head and using method thereof |
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| CN101818381A true CN101818381A (en) | 2010-09-01 |
| CN101818381B CN101818381B (en) | 2012-01-04 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568406A (en) * | 2016-01-27 | 2016-05-11 | 广东工业大学 | Mechanical stirring solution supply electrostatic spinning device |
| CN105568405A (en) * | 2016-01-27 | 2016-05-11 | 广东工业大学 | Magnetic-stirring liquid supply electrostatic spinning device |
| CN105937059A (en) * | 2016-06-27 | 2016-09-14 | 佛山轻子精密测控技术有限公司 | Netted rotating electrode |
| CN109537068A (en) * | 2018-12-19 | 2019-03-29 | 上海固甲新材料科技有限公司 | A kind of liquid spray device for spinning |
| CN110158170A (en) * | 2019-06-26 | 2019-08-23 | 广东工业大学 | A kind of centrifugation electrostatic spinning apparatus and control method |
| CN113215667A (en) * | 2021-04-29 | 2021-08-06 | 南京工业大学 | Preparation method for preparing micron/nano fiber by electromagnetic vibration and magnetic coupling |
| CN113510015A (en) * | 2021-07-29 | 2021-10-19 | 厦门大学 | Novel micro-nano spray head |
| WO2021238236A1 (en) * | 2020-05-25 | 2021-12-02 | 苏州大学 | Recess-type electrostatic spinning device capable of reducing solution viscosity |
| CN113930897A (en) * | 2021-04-02 | 2022-01-14 | 武汉纺织大学 | Water-soluble non-woven fabric mask and preparation method thereof |
| CN115262004A (en) * | 2022-08-03 | 2022-11-01 | 江南大学 | Free liquid level multi-jet electrostatic spinning device and method for producing nano fibers |
| CN115386972A (en) * | 2022-09-05 | 2022-11-25 | 广东石油化工学院 | Cam drive wire net type electrostatic spinning device and using method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105568405A (en) * | 2016-01-27 | 2016-05-11 | 广东工业大学 | Magnetic-stirring liquid supply electrostatic spinning device |
| CN105568406A (en) * | 2016-01-27 | 2016-05-11 | 广东工业大学 | Mechanical stirring solution supply electrostatic spinning device |
| CN105937059A (en) * | 2016-06-27 | 2016-09-14 | 佛山轻子精密测控技术有限公司 | Netted rotating electrode |
| CN109537068B (en) * | 2018-12-19 | 2021-08-06 | 上海固甲新材料科技有限公司 | Liquid jet spinning device |
| CN109537068A (en) * | 2018-12-19 | 2019-03-29 | 上海固甲新材料科技有限公司 | A kind of liquid spray device for spinning |
| CN110158170A (en) * | 2019-06-26 | 2019-08-23 | 广东工业大学 | A kind of centrifugation electrostatic spinning apparatus and control method |
| CN110158170B (en) * | 2019-06-26 | 2021-03-16 | 广东工业大学 | Centrifugal electrostatic spinning device and control method |
| WO2021238236A1 (en) * | 2020-05-25 | 2021-12-02 | 苏州大学 | Recess-type electrostatic spinning device capable of reducing solution viscosity |
| CN113930897A (en) * | 2021-04-02 | 2022-01-14 | 武汉纺织大学 | Water-soluble non-woven fabric mask and preparation method thereof |
| CN113215667A (en) * | 2021-04-29 | 2021-08-06 | 南京工业大学 | Preparation method for preparing micron/nano fiber by electromagnetic vibration and magnetic coupling |
| CN113510015A (en) * | 2021-07-29 | 2021-10-19 | 厦门大学 | Novel micro-nano spray head |
| CN115262004A (en) * | 2022-08-03 | 2022-11-01 | 江南大学 | Free liquid level multi-jet electrostatic spinning device and method for producing nano fibers |
| CN115386972A (en) * | 2022-09-05 | 2022-11-25 | 广东石油化工学院 | Cam drive wire net type electrostatic spinning device and using method thereof |
| CN115386972B (en) * | 2022-09-05 | 2023-07-14 | 广东石油化工学院 | Cam driving wire mesh type electrostatic spinning device and use method thereof |
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| CN101818381B (en) | 2012-01-04 |
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