CN102851752A - Device and method for preparing layered superfine fiber - Google Patents
Device and method for preparing layered superfine fiber Download PDFInfo
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- CN102851752A CN102851752A CN2012103883708A CN201210388370A CN102851752A CN 102851752 A CN102851752 A CN 102851752A CN 2012103883708 A CN2012103883708 A CN 2012103883708A CN 201210388370 A CN201210388370 A CN 201210388370A CN 102851752 A CN102851752 A CN 102851752A
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Abstract
The invention discloses a device for preparing layered superfine fiber, comprising multiple rotary liquid storage tanks, a high voltage electrostatic generator, an air source device, multiple nozzles, a receiving device, an air duct, a metal electrode and a grounding electrode. An opening is formed over the rotary liquid storage tanks, the bottom surface is provided with vertically upward nozzles, the quantity of the rotary liquid storage tanks is consistent to that of the nozzles, the nozzles are connected with the air source via the air duct, the connection part between the air duct and the air source is higher than the liquid level of the rotary liquid storage tanks, the rotary liquid storage tanks are connected with the high voltage electrostatic generator via the metal electrode, and the receiving device is arranged above the rotary liquid storage tanks and connected with the grounding electrode. By adopting the device for preparing layered superfine fiber provided by the invention, high-efficiency and low-energy-consumption continuous production of the layered superfine fiber can be realized, multiple rotary liquid storage tanks spin simultaneously and rotate to coil the nano fiber, thus, mass production of the layered superfine fiber can be realized, and the device for preparing layered superfine fiber is high in production efficiency, low in production cost, simple in equipment, easy to operate and strong in adaptability.
Description
Technical field
The present invention relates to textile technology field, relate in particular to a kind of preparation method of hierarchical structure superfine fibre and the device of prepared layer aggregated(particle) structure superfine fibre.
Background technology
The superfine fibre of hierarchical structure has very superior performance, such as CNT.The CNT quality is light, and hexagonal structure connects perfect, has many unusual mechanics, electricity and chemical property.Studies show that CNT has high intensity, toughness, and very soft.CNT has the tip of nanoscale, is conducive to electron emission, has how much Field Electron Emission effect.The diameter that CNT is different and helicity can make it present metallic conductivity or characteristic of semiconductor, have unique electric conductivity, very high heat endurance and intrinsic mobility, and specific area is large, has fabulous adsorption capacity.Aspect catalyticing research, CNT also has application simultaneously.
Electrostatic spinning technique is that preparing at present superfine fibre and nanofiber the most direct also is one of the most basic method, have the specific area of superelevation, greatly draw ratio, high surface, superior characteristics such as mechanical performance (high-strength and high ductility) by the nanofiber of electrostatic spinning technique preparation, store with hygiene and health, the energy in Textile Engineering, environmental project, biotechnology, medical treatment, military affairs and anti-terrorism wait safely different field all to have very wide application prospect.
Laboratory and industrial quarters prepare nanofiber at present, extensively adopt the device of single spraying head or many shower nozzles syringe-type electrostatic spinning nano fiber.Such as Chinese patent ZL200410025622.6, ZL200420107832.5, US Patent No. 6713001, US7326043, US6616435.Many improvement are arranged or change the syringe-type sprinkler design, the device that adopts other spray silk modes to carry out spinning, such as Chinese patent ZL200610117671.1, ZL200710036447.4, ZL200710040316.3, ZL200420020596.3, ZL200820058415.4, US Patent No. 7535019, US7390452, Japan Patent JP2009120971-A, JP2009120972-A, world patent WO2008060675-A2, WO2008060675-A3.Improve in addition receiving system, such as US Patent No. 5042789, US4589186.
The superfine fibre of hierarchical structure has very superior performance, and prepared layer aggregated(particle) structure superfine fibre becomes current problem in the urgent need to address.
Summary of the invention
In view of this, the method that the object of the present invention is to provide a kind of device of prepared layer aggregated(particle) structure superfine fibre and adopt this device prepared layer aggregated(particle) structure superfine fibre to remedy the deficiencies in the prior art and defective, meets the demands of production and living.
For achieving the above object, the invention provides following technical scheme:
A kind of device of prepared layer aggregated(particle) structure superfine fibre, comprise a plurality of rotation liquid storage tanks, HV generator, compressed air source unit, a plurality of shower nozzles, receiving system, wireway, metal electrode and earth electrode, rotation liquid storage tank upper opening, the bottom surface is provided with shower nozzle vertically upward, the quantity of rotation liquid storage tank and shower nozzle is consistent, shower nozzle links to each other with compressed air source unit by wireway, wireway and compressed air source unit connecting place are higher than the liquid level that rotates liquid storage tank, the rotation liquid storage tank links to each other with HV generator by metal electrode, the top is provided with receiving system, and receiving system links to each other with earth electrode.
Described receiving system is for receiving cylinder or receiving pole plate.
Described receiving system is 0.1cm ~ 100cm with the distance adjustment scope of rotation liquid storage tank upper end.
Described compressed air source unit is air pump or hand wind device.
The air-flow velocity of described compressed air source unit output is 0 ~ 100m/s.
The output voltage of described HV generator is 1KV ~ 100KV.
Described rotation liquid storage tank is shaped as cylinder or square.
A kind of method that adopts above-mentioned device prepared layer aggregated(particle) structure superfine fibre may further comprise the steps:
In the rotation liquid storage tank, inject solution or melt; Open compressed air source unit, low pressure is discharged liquid in the wireway, slowly adds atmospheric pressure again, makes liquid level regular air bubble-shaped projection occur by shower nozzle; The opening high pressure electrostatic generator, polarization liquid internal and bubble surface free charge; Jet penetrates from the bubble top, and the rotation liquid storage tank rotarily drives nanofiber and rotates, twines, is deposited on the receiving system, obtains the hierarchical structure superfine fibre.
The opening high pressure electrostatic generator is adjusted to certain voltage, the liquid internal free charge under the high-pressure electrostatic effect with polarized, bubble surface particularly; Distance rotation liquid storage tank upper port certain distance is receiving system, receiving system and earth electrode form negative pole, and and rotation liquid storage tank liquid level between form electric field, when electric field force during greater than solution surface tension, to there be jet to penetrate the receiving system of directive negative electrode from the bubble top.
Can find out from technique scheme, but the device of prepared layer aggregated(particle) structure superfine fibre of the present invention and high efficiency, low power consuming, the serialization production of superfine fibre of adopting the method implementation level structure of this device prepared layer aggregated(particle) structure superfine fibre, by the simultaneously spinning of a plurality of rotation liquid storage tanks, by rotation, nanofiber twines, but a large amount of productions of implementation level superfine fibre, production efficiency is high, and production cost is low, and equipment is simple, easy to operate, strong adaptability.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing relevant of the present invention in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that each junior unit body is by the structural representation of three strands of fibrous hierarchical structure superfine fibres;
Fig. 2 is that each junior unit body is by the structural representation of six strands of fibrous hierarchical structure superfine fibres;
Fig. 3 is the structural representation of a kind of prepared layer aggregated(particle) structure superfine fibre device of the present invention;
Fig. 4 is the structural representation of another kind of prepared layer aggregated(particle) structure superfine fibre device of the present invention;
Fig. 5 is that prepared layer aggregated(particle) structure superfine fibre device of the present invention arranges position and the direction of rotation schematic diagram of two rotations during liquid storage tank;
Fig. 6 is that prepared layer aggregated(particle) structure superfine fibre device of the present invention arranges position and the direction of rotation schematic diagram of four rotations during liquid storage tank;
Fig. 7 is that prepared layer aggregated(particle) structure superfine fibre device of the present invention arranges position and the direction of rotation schematic diagram of six rotations during liquid storage tank.
The specific embodiment
The invention discloses a kind of device of prepared layer aggregated(particle) structure superfine fibre, comprise a plurality of rotation liquid storage tanks 1, HV generator 2, compressed air source unit 3, a plurality of shower nozzles 4, receiving system, wireway 6, metal electrode 7 and earth electrode 8, rotation liquid storage tank 1 upper opening, the bottom surface is provided with shower nozzle 4 vertically upward, rotation liquid storage tank 1 is consistent with the quantity of shower nozzle 4, shower nozzle 4 links to each other with compressed air source unit 3 by wireway 6, wireway 6 is higher than the liquid level that rotates liquid storage tank 1 with compressed air source unit 3 connecting places, rotation liquid storage tank 1 links to each other with HV generator 2 by metal electrode 7, the top is provided with receiving system, and receiving system links to each other with earth electrode 8.
Described receiving system is for receiving cylinder 5 or receiving pole plate 9.
Described receiving system is 0.1cm ~ 100cm with the distance adjustment scope of rotation liquid storage tank 1 upper end.
Described compressed air source unit 3 is air pump or hand wind device.
The air-flow velocity of described compressed air source unit 3 outputs is 0 ~ 100m/s.
The output voltage of described HV generator 2 is 1KV ~ 100KV.
Described rotation liquid storage tank 1 is shaped as cylinder or square.
A kind of method that adopts above-mentioned device prepared layer aggregated(particle) structure superfine fibre may further comprise the steps:
In rotation liquid storage tank 1, inject solution or melt; Open compressed air source unit 3, low pressure is discharged liquid in the wireway 6, slowly adds atmospheric pressure again, makes liquid level regular air bubble-shaped projection occur by shower nozzle 4; Opening high pressure electrostatic generator 2, polarization liquid internal and bubble surface free charge; Jet penetrates from the bubble top, and rotation liquid storage tank 1 rotarily drives nanofiber and rotates, twines, is deposited on the receiving system, obtains the hierarchical structure superfine fibre.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is described in detail, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work belongs to the scope of protection of the invention.
Embodiment 1
As shown in Figure 3, this hierarchical structure ultrafine fiber preparation device, comprise three rotation liquid storage tanks 1, HV generator 2, compressed air source unit 3, three shower nozzles 4, receive cylinder 5, wireway 6, metal electrode 7 and earth electrode 8, three equal openings in rotation liquid storage tank 1 top, the bottom surface is provided with three shower nozzles 4 vertically upward altogether, three shower nozzles 4 link to each other with compressed air source unit 3 by wireway 6, wireway 6 is higher than three liquid levels that rotate liquid storage tanks 1 with compressed air source unit 3 connecting places, each rotation liquid storage tank 1 links to each other with HV generator 2 by metal electrode 7, three rotation liquid storage tank 1 tops are provided with and receive cylinder 5, receive cylinder 5 and link to each other with earth electrode 8.
During the work of this device, at first in rotation liquid storage tank 1, inject solution or melt; Open compressed air source unit 3, air pressure is lower during beginning, first liquid in the wireway 6 is discharged, and slowly adds atmospheric pressure again, makes liquid level regular air bubble-shaped projection occur; Then the opening high pressure electrostatic generator 2, are adjusted to certain voltage, the liquid internal free charge under the high-pressure electrostatic effect with polarized, bubble surface particularly; Distance rotation liquid storage tank 1 upper port certain distance is to receive cylinder 5, receive cylinder 5 and form negative pole with earth electrode 8, and form electric field between rotation liquid storage tank 1 liquid level, when electric field force during greater than solution surface tension, to there be jet to penetrate from the bubble top, the reception cylinder 5 of directive negative electrode, rotation liquid storage tank 1 rotarily drive nanofiber and rotate, twine, are deposited on the negative electrode reception cylinder 5, form a large amount of hierarchical structure superfine fibres.
Product is shown in the structural representation of Fig. 1 hierarchical structure superfine fibre, and each junior unit body is fibrous by three strands.
As shown in Figure 4, this hierarchical structure ultrafine fiber preparation device, comprise three rotation liquid storage tanks 1, HV generator 2, compressed air source unit 3, three shower nozzles 4, receive pole plate 9, wireway 6, metal electrode 7 and earth electrode 8, three equal openings in rotation liquid storage tank 1 top, the bottom surface is provided with three shower nozzles 4 vertically upward altogether, three shower nozzles 4 link to each other with compressed air source unit 3 by wireway 6, wireway 6 is higher than three liquid levels that rotate liquid storage tanks 1 with compressed air source unit 3 connecting places, each rotation liquid storage tank 1 links to each other with HV generator 2 by metal electrode 7, three rotation liquid storage tank 1 tops are provided with and receive pole plate 9, receive pole plate 9 and link to each other with earth electrode 8.
During the work of this device, at first in rotation liquid storage tank 1, inject solution or melt; Open compressed air source unit 3, air pressure is lower during beginning, first liquid in the wireway 6 is discharged, and slowly adds atmospheric pressure again, makes liquid level regular air bubble-shaped projection occur; Then the opening high pressure electrostatic generator 2, are adjusted to certain voltage, the liquid internal free charge under the high-pressure electrostatic effect with polarized, bubble surface particularly; Distance rotation liquid storage tank 1 upper port certain distance is to receive pole plate 9, receive pole plate 9 and form negative pole with earth electrode 8, and form electric field between rotation liquid storage tank 1 liquid level, when electric field force during greater than solution surface tension, to there be jet to penetrate from the bubble top, the reception pole plate 9 of directive negative electrode, rotation liquid storage tank 1 rotarily drive nanofiber and rotate, twine, are deposited on the negative electrode reception pole plate 9, form a large amount of hierarchical structure superfine fibres.
Product is shown in the structural representation of Fig. 1 hierarchical structure superfine fibre, and each junior unit body is fibrous by three strands.
Embodiment 3
This hierarchical structure ultrafine fiber preparation device, comprise two rotation liquid storage tanks 1, HV generator 2, compressed air source unit 3, two shower nozzles 4, receive cylinder 5, wireway 6, metal electrode 7 and earth electrode 8, two equal openings in rotation liquid storage tank 1 top, the bottom surface is provided with two shower nozzles 4 vertically upward altogether, two shower nozzles 4 link to each other with compressed air source unit 3 by wireway 6, wireway 6 is higher than two liquid levels that rotate liquid storage tanks 1 with compressed air source unit 3 connecting places, each rotation liquid storage tank 1 links to each other with HV generator 2 by metal electrode 7, two rotation liquid storage tank 1 tops are provided with and receive cylinder 5, receive cylinder 5 and link to each other with earth electrode 8.
The position of two rotation liquid storage tanks and direction of rotation are as shown in Figure 5.
During the work of this device, at first in rotation liquid storage tank 1, inject solution or melt; Open compressed air source unit 3, air pressure is lower during beginning, first liquid in the wireway 6 is discharged, and slowly adds atmospheric pressure again, makes liquid level regular air bubble-shaped projection occur; Then the opening high pressure electrostatic generator 2, are adjusted to certain voltage, the liquid internal free charge under the high-pressure electrostatic effect with polarized, bubble surface particularly; Distance rotation liquid storage tank 1 upper port certain distance is to receive cylinder 5, receive cylinder 5 and form negative pole with earth electrode 8, and form electric field between rotation liquid storage tank 1 liquid level, when electric field force during greater than solution surface tension, to there be jet to penetrate from the bubble top, the reception cylinder 5 of directive negative electrode, rotation liquid storage tank 1 rotarily drive nanofiber and rotate, twine, are deposited on the negative electrode reception cylinder 5, form a large amount of hierarchical structure superfine fibres.
Embodiment 4
This hierarchical structure ultrafine fiber preparation device, comprise four rotation liquid storage tanks 1, HV generator 2, compressed air source unit 3, four shower nozzles 4, receive cylinder 5, wireway 6, metal electrode 7 and earth electrode 8, four equal openings in rotation liquid storage tank 1 top, the bottom surface is provided with four shower nozzles 4 vertically upward altogether, four shower nozzles 4 link to each other with compressed air source unit 3 by wireway 6, wireway 6 is higher than four liquid levels that rotate liquid storage tanks 1 with compressed air source unit 3 connecting places, each rotation liquid storage tank 1 links to each other with HV generator 2 by metal electrode 7, four rotation liquid storage tank 1 tops are provided with and receive cylinder 5, receive cylinder 5 and link to each other with earth electrode 8.
The position of four rotation liquid storage tanks and direction of rotation are as shown in Figure 6.
During the work of this device, at first in rotation liquid storage tank 1, inject solution or melt; Open compressed air source unit 3, air pressure is lower during beginning, first liquid in the wireway 6 is discharged, and slowly adds atmospheric pressure again, makes liquid level regular air bubble-shaped projection occur; Then the opening high pressure electrostatic generator 2, are adjusted to certain voltage, the liquid internal free charge under the high-pressure electrostatic effect with polarized, bubble surface particularly; Distance rotation liquid storage tank 1 upper port certain distance is to receive cylinder 5, receive cylinder 5 and form negative pole with earth electrode 8, and form electric field between rotation liquid storage tank 1 liquid level, when electric field force during greater than solution surface tension, to there be jet to penetrate from the bubble top, the reception cylinder 5 of directive negative electrode, rotation liquid storage tank 1 rotarily drive nanofiber and rotate, twine, are deposited on the negative electrode reception cylinder 5, form a large amount of hierarchical structure superfine fibres.
This hierarchical structure ultrafine fiber preparation device, comprise six rotation liquid storage tanks 1, HV generator 2, compressed air source unit 3, six shower nozzles 4, receive cylinder 5, wireway 6, metal electrode 7 and earth electrode 8, six equal openings in rotation liquid storage tank 1 top, the bottom surface is provided with six shower nozzles 4 vertically upward altogether, six shower nozzles 4 link to each other with compressed air source unit 3 by wireway 6, wireway 6 is higher than six liquid levels that rotate liquid storage tanks 1 with compressed air source unit 3 connecting places, each rotation liquid storage tank 1 links to each other with HV generator 2 by metal electrode 7, six rotation liquid storage tank 1 tops are provided with and receive cylinder 5, receive cylinder 5 and link to each other with earth electrode 8.
The position of six rotation liquid storage tanks and direction of rotation are as shown in Figure 5.
During the work of this device, at first in rotation liquid storage tank 1, inject solution or melt; Open compressed air source unit 3, air pressure is lower during beginning, first liquid in the wireway 6 is discharged, and slowly adds atmospheric pressure again, makes liquid level regular air bubble-shaped projection occur; Then the opening high pressure electrostatic generator 2, are adjusted to certain voltage, the liquid internal free charge under the high-pressure electrostatic effect with polarized, bubble surface particularly; Distance rotation liquid storage tank 1 upper port certain distance is to receive cylinder 5, receive cylinder 5 and form negative pole with earth electrode 8, and form electric field between rotation liquid storage tank 1 liquid level, when electric field force during greater than solution surface tension, to there be jet to penetrate from the bubble top, the reception cylinder 5 of directive negative electrode, rotation liquid storage tank 1 rotarily drive nanofiber and rotate, twine, are deposited on the negative electrode reception cylinder 5, form a large amount of hierarchical structure superfine fibres.
Product is shown in the structural representation of Fig. 2 hierarchical structure superfine fibre, and each junior unit body is fibrous by six strands.
In sum, but the device of the prepared layer aggregated(particle) structure superfine fibre of the embodiment of the invention and high efficiency, low power consuming, the serialization production of superfine fibre of adopting the method implementation level structure of this device prepared layer aggregated(particle) structure superfine fibre, by the simultaneously spinning of a plurality of rotation liquid storage tanks, by rotation, nanofiber twines, but a large amount of productions of implementation level superfine fibre, production efficiency is high, and production cost is low, and equipment is simple, easy to operate, strong adaptability.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned example embodiment, and in the situation that does not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims rather than above-mentioned explanation, therefore is intended to include in the present invention dropping on the implication that is equal to important document of claim and all changes in the scope.Any Reference numeral in the claim should be considered as limit related claim.
In addition, be to be understood that, although this specification is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of specification only is for clarity sake, those skilled in the art should make specification as a whole, and the technical scheme among each embodiment also can through appropriate combination, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (8)
1. the device of a prepared layer aggregated(particle) structure superfine fibre, it is characterized in that: comprise a plurality of rotation liquid storage tanks (1), HV generator (2), compressed air source unit (3), a plurality of shower nozzles (4), receiving system, wireway (6), metal electrode (7) and earth electrode (8), rotation liquid storage tank (1) upper opening, the bottom surface is provided with shower nozzle (4) vertically upward, rotation liquid storage tank (1) is consistent with the quantity of shower nozzle (4), shower nozzle (4) links to each other with compressed air source unit (3) by wireway (6), wireway (6) is higher than the liquid level that rotates liquid storage tank (1) with compressed air source unit (3) connecting place, rotation liquid storage tank (1) links to each other with HV generator (2) by metal electrode (7), the top is provided with receiving system, and receiving system links to each other with earth electrode (8).
2. device according to claim 1 is characterized in that: described receiving system is for receiving cylinder (5) or receiving pole plate (9).
3. device according to claim 1, it is characterized in that: described rotation liquid storage tank (1) is shaped as cylinder or square.
4. device according to claim 1, it is characterized in that: the output voltage of described HV generator (2) is 1KV ~ 100KV.
5. device according to claim 1, it is characterized in that: described compressed air source unit (3) is air pump or hand wind device.
6. device according to claim 1 is characterized in that: the air-flow velocity of described compressed air source unit (3) output is 0 ~ 100m/s.
7. device according to claim 1 is characterized in that: described receiving system is 0.1cm ~ 100cm with the distance adjustment scope of rotation liquid storage tank (1) upper end.
8. a method that adopts claim 1 or 2 described device prepared layer aggregated(particle) structure superfine fibres is characterized in that, may further comprise the steps: inject solution or melt in rotation liquid storage tank (1); Open compressed air source unit (3), low pressure is discharged liquid in the wireway (6), slowly adds atmospheric pressure again, makes liquid level regular air bubble-shaped projection occur by shower nozzle (4); Opening high pressure electrostatic generator (2), polarization liquid internal and bubble surface free charge; Jet penetrates from the bubble top, and rotation liquid storage tank (1) rotarily drives nanofiber and rotates, twines, is deposited on the receiving system, obtains the hierarchical structure superfine fibre.
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| CN201210388370.8A CN102851752B (en) | 2012-10-15 | 2012-10-15 | hierarchical structure superfine fibre preparation method and device |
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| CN201210388370.8A CN102851752B (en) | 2012-10-15 | 2012-10-15 | hierarchical structure superfine fibre preparation method and device |
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Cited By (3)
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| CN103382625A (en) * | 2013-08-06 | 2013-11-06 | 苏州大学 | Preparation method of nano film |
| CN104862787A (en) * | 2015-05-19 | 2015-08-26 | 上海大学 | System and method for partition electrospinning of multiple materials |
| CN109322061A (en) * | 2018-10-16 | 2019-02-12 | 浙江农林大学暨阳学院 | A kind of fiber filter membrane preparation device and preparation method thereof |
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| CN101542025A (en) * | 2006-11-24 | 2009-09-23 | 松下电器产业株式会社 | Process and apparatus for producing nanofiber and polymer web |
| CN202187098U (en) * | 2011-07-20 | 2012-04-11 | 厦门大学 | Rotary electrostatic spinning sprayer |
| CN102660784A (en) * | 2012-05-31 | 2012-09-12 | 苏州大学 | Bubble electrostatic spinning device |
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| CN101542025A (en) * | 2006-11-24 | 2009-09-23 | 松下电器产业株式会社 | Process and apparatus for producing nanofiber and polymer web |
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| DE102007027014A1 (en) * | 2007-06-08 | 2008-12-18 | Rainer Busch | Spinning nano- and micro-fibers, rapidly accelerates stratified polymers and polymer solutions whilst applying electrical field to modify physical- and surface properties |
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| CN102660784A (en) * | 2012-05-31 | 2012-09-12 | 苏州大学 | Bubble electrostatic spinning device |
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| CN103382625A (en) * | 2013-08-06 | 2013-11-06 | 苏州大学 | Preparation method of nano film |
| CN103382625B (en) * | 2013-08-06 | 2016-08-24 | 苏州大学 | The preparation method of nano thin-film |
| CN104862787A (en) * | 2015-05-19 | 2015-08-26 | 上海大学 | System and method for partition electrospinning of multiple materials |
| CN109322061A (en) * | 2018-10-16 | 2019-02-12 | 浙江农林大学暨阳学院 | A kind of fiber filter membrane preparation device and preparation method thereof |
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