CN102433596A - Gathering unit and method for Taylor cone shower nozzle electrostatic spinning-oriented nanofiber - Google Patents
Gathering unit and method for Taylor cone shower nozzle electrostatic spinning-oriented nanofiber Download PDFInfo
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- CN102433596A CN102433596A CN2011104478447A CN201110447844A CN102433596A CN 102433596 A CN102433596 A CN 102433596A CN 2011104478447 A CN2011104478447 A CN 2011104478447A CN 201110447844 A CN201110447844 A CN 201110447844A CN 102433596 A CN102433596 A CN 102433596A
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- metal ring
- taylor cone
- cone nozzle
- inner metal
- outer metal
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- 239000002121 nanofiber Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 115
- 229910052751 metal Inorganic materials 0.000 claims abstract description 115
- 238000001523 electrospinning Methods 0.000 claims abstract description 22
- 238000009987 spinning Methods 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract 5
- 239000011810 insulating material Substances 0.000 claims abstract 4
- 239000011159 matrix material Substances 0.000 claims description 16
- 230000005684 electric field Effects 0.000 claims description 11
- 229920000728 polyester Polymers 0.000 claims description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 7
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000001802 infusion Methods 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 14
- 238000009413 insulation Methods 0.000 description 12
- 238000010041 electrostatic spinning Methods 0.000 description 6
- 229940068984 polyvinyl alcohol Drugs 0.000 description 6
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 3
- 239000000284 extract Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 238000000879 optical micrograph Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000935 solvent evaporation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
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- Nonwoven Fabrics (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
本发明涉及一种泰勒锥喷头静电纺丝取向纳米纤维的收集装置及方法，装置包括绝缘材料板、外侧金属圆环、内侧金属圆环、交流电压输出装置、绝缘薄膜基体、泰勒锥喷头，所述的绝缘材料板下表面固定中轴线相互重合的外侧金属圆环和内侧金属圆环；泰勒锥喷头位于外侧金属圆环和内侧金属圆环正下方。方法如下：向泰勒锥喷头中注入纺丝溶液，将接线柱与高压正电极相连；将外侧金属圆环与交流电压输出装置相连，将内侧金属圆环与接地线相连，将绝缘薄膜基体置于外侧金属圆环和内侧金属圆环下方；打开高压静电发生装置和交流电压输出装置。本发明相比现有技术，制得的纳米纤维取向度和产量都比较高，并可实现静电纺取向纳米纤维的连续生产。
The invention relates to a collection device and method for electrospinning oriented nanofibers of a Taylor cone nozzle. The device includes an insulating material plate, an outer metal ring, an inner metal ring, an AC voltage output device, an insulating film substrate, and a Taylor cone nozzle. The outer metal ring and the inner metal ring whose central axes coincide with each other are fixed on the lower surface of the insulating material plate; the Taylor cone nozzle is located directly below the outer metal ring and the inner metal ring. The method is as follows: inject spinning solution into the Taylor cone nozzle, connect the terminal to the high-voltage positive electrode; connect the outer metal ring to the AC voltage output device, connect the inner metal ring to the ground wire, and place the insulating film substrate on Below the outer metal ring and the inner metal ring; turn on the high-voltage electrostatic generating device and the AC voltage output device. Compared with the prior art, the invention has higher orientation degree and output of the prepared nanofibers, and can realize continuous production of electrospinning oriented nanofibers.
Description
Technical field
The invention belongs to the electrostatic spinning technique field, particularly relate to a kind of gathering-device and method of taylor cone nozzle electrospinning oriented nanofibers.
Background technology
Electrostatic spinning is a kind of straightforward procedure of at present popular preparation nanofiber, with it possess that equipment is simple, raw material sources extensively, technical process do not destroy characteristics such as material body, received more and more researchers' concern.Electrostatic spinning nano fiber relies on characteristics such as its product fineness is thin, porosity is high, surface area is big, is widely used in fields such as filtering material, sensor, organizational project, medicament slow release.
Electrostatic spinning is that charged drop forms taylor cone under the effect of electric field force with on polymer solution or the melt band several thousand and even the high-pressure electrostatic of volts up to ten thousand, and when electric field force was enough big, electric field force can be bored point at taylor cone and overcome solution surface tension and form and spray thread.The refinement that under effects such as electric field force, viscosity 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.
Up to the present, most of electrostatic spinning nano fibers are to collect with the form of nonwoven fabric, and the arrangement of nanofiber is disorderly and unsystematic, thereby have limited its range of application.Yet we know according to traditional fiber and textile industry knowledge, continuous single nanofiber and vertically the bundles of nanofibers of orientation will have more widely and use.But the bundles of nanofibers or the single nanofiber that utilize electro-spinning to get orientations all are very difficult.Because spin in the process at static, the motion of polymer jet is very complicated, three-dimensional " whip is moving ", and the motion state of non-rectilinear, therefore domestic and international many researchers make the method for oriented nanofibers in effort research.Some scholar is based on the needle-based shower nozzle, and the round turntable or the framework that adopt the metal roller of rotation at a high speed or have sharp edges be as gathering-device, though the degree of orientation of the nanofiber of collecting increases, output is very low.
Summary of the invention
Technical problem to be solved by this invention provides a kind of gathering-device and method of taylor cone nozzle electrospinning oriented nanofibers, and the degree of orientation that changes oriented nanofibers in the present electrostatic spinning process is not high, and the present situation that yields poorly.
The technical solution adopted for the present invention to solve the technical problems is: the gathering-device that a kind of taylor cone nozzle electrospinning oriented nanofibers is provided; Comprise dielectric panel, outside metal ring, inboard metal ring, alternating voltage output device, insulation film matrix, taylor cone shower nozzle, described dielectric panel lower surface is fixed with outside metal ring and inboard metal ring; The axis of described outside metal ring and inboard metal ring overlaps, and is positioned at same plane; Described outside metal ring links to each other with the alternating voltage output device, and described inboard metal ring links to each other with earth connection; Described insulation film matrix places under outside metal ring and the inboard metal ring, and covers under described outside metal ring and the inboard metal ring; Described taylor cone shower nozzle is the open type disk, and its axis overlaps with the axis of outside metal ring and inboard metal ring, and is positioned under outside metal ring and the inboard metal ring; Described taylor cone shower nozzle is provided with binding post, and described binding post links to each other with the high pressure positive electrode of external high-voltage electrostatic generator.
Described inboard metal ring radius is 0.1～10cm, the big 0.5～2cm of the inboard metal ring radius of described outside metal ring radius ratio.
Described insulation film matrix is polyester (PET) film-shaped matrix, and thickness is 50～1000 μ m.
Described taylor cone shower nozzle adopts copper material to process.
Vertical range between described outside metal ring and the taylor cone shower nozzle is 20～50cm.
A kind of collection method of taylor cone nozzle electrospinning oriented nanofibers comprises the following steps:
(1) in the taylor cone shower nozzle, injects spinning solution through external automatic infusion device, the binding post on the taylor cone shower nozzle is linked to each other with the high pressure positive electrode of external high-voltage electrostatic generator;
(2) outside metal ring is linked to each other with the alternating voltage output device; Inboard metal ring is linked to each other with earth connection; And the insulation film matrix placed under the outside metal ring and the inboard metal ring, and cover under described outside metal ring and the inboard metal ring;
(3) open high-voltage electrostatic generator and alternating voltage output device;
(4) spinning solution in the taylor cone shower nozzle forms taylor cone under the effect of electric field force, upwards extracts jet out, solvent evaporates; Utilize the AC field that produces between outside metal ring and the inboard metal ring simultaneously, make the nanofiber of generation produce orientation, and be collected on the insulation film matrix in the circular zone between outside metal ring and inboard metal ring; Collected oriented nanofibers felt appears circular, and its external diameter equals the radius of outside metal ring, and its internal diameter equals the radius of inboard metal ring.
Described spinning solution is a poly-vinyl alcohol solution, and concentration is 8%～12%.
The voltage value of described high-voltage electrostatic generator is set to 45kV; The field intensity of described alternating voltage output device (8) is set to 0.33kV/mm, and frequency is set to 500Hz.
Beneficial effect
The present invention compares prior art, and the nanofiber degree of orientation that makes and output is all than higher, and can realize that static spins the continuous production of oriented nanofibers.In addition, apparatus of the present invention are rational in infrastructure and succinct, and manufacturing cost is low, and method is simple to operation, and is practical, has broad application prospects.
Description of drawings
Fig. 1 is a kind of gathering-device structural representation of taylor cone nozzle electrospinning oriented nanofibers;
Fig. 2 is a kind of gathering-device vertical view of taylor cone nozzle electrospinning oriented nanofibers;
Fig. 3 is the three-dimensional simple and easy sketch map of a kind of gathering-device of taylor cone nozzle electrospinning oriented nanofibers;
Fig. 4 is the indicative of local optical microphotograph that utilizes the nanofiber mats that device and method of the present invention collects;
1. taylor cone shower nozzle 2. binding posts 3. insulation film matrixes 4. outside metal rings 5. inboard metal rings
6. dielectric panel 7. high pressure positive electrodes 8. alternating voltage output devices 9. earth connections
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 the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to 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.
Like Fig. 1, Fig. 2, shown in Figure 3; The gathering-device of a kind of taylor cone nozzle electrospinning of the present invention oriented nanofibers; Comprise dielectric panel 6, outside metal ring 4, inboard metal ring 5, alternating voltage output device 8, insulation film matrix 3, taylor cone shower nozzle 1, described dielectric panel 6 lower surfaces are fixed with outside metal ring 4 and inboard metal ring 5; The axis of described outside metal ring 4 and inboard metal ring 5 overlaps, and is positioned at same plane; Described outside metal ring 4 links to each other with alternating voltage output device 8, and described inboard metal ring 5 links to each other with earth connection 9; Described insulation film matrix 3 places under outside metal ring 4 and the inboard metal ring 5, and covers described outside metal ring 4 and inboard metal ring 5 times; Described taylor cone shower nozzle 1 is the open type disk, and its axis overlaps with the axis of outside metal ring 4 and inboard metal ring 5, and is positioned under outside metal ring 4 and the inboard metal ring 5; Described taylor cone shower nozzle 1 is provided with binding post 2, and described binding post 2 links to each other with the high pressure positive electrode 7 of external high-voltage electrostatic generator.
Described inboard metal ring 5 radiuses are 0.1～10cm, the big 0.5～2cm of inboard metal ring 5 radiuses of described outside metal ring 4 radius ratios.
Described insulation film matrix 3 is polyester (PET) film-shaped matrix, and thickness is 50～1000 μ m.
Described taylor cone shower nozzle 1 adopts copper material to process.
Vertical range between described outside metal ring 4 and the taylor cone shower nozzle 1 is 20～50cm.
A kind of collection method of taylor cone nozzle electrospinning oriented nanofibers comprises the following steps:
(1) in taylor cone shower nozzle 1, injects spinning solution through external automatic infusion device, the binding post on the taylor cone shower nozzle 12 is linked to each other with the high pressure positive electrode 7 of external high-voltage electrostatic generator;
(2) outside metal ring 4 is linked to each other with alternating voltage output device 8; Inboard metal ring 5 is linked to each other with earth connection 9; And insulation film matrix 3 placed under outside metal ring 4 and the inboard metal ring 5, and cover described outside metal ring 4 and inboard metal ring 5 times;
(3) open high-voltage electrostatic generator and alternating voltage output device 8;
(4) spinning solution in the taylor cone shower nozzle 1 forms taylor cone under the effect of electric field force, upwards extracts jet out, solvent evaporates; Utilize the AC field that produces between outside metal ring 4 and the inboard metal ring 5 simultaneously, make the nanofiber of generation produce orientation, and be collected on the insulation film matrix 3 in the circular zone between outside metal ring 4 and inboard metal ring 5; Collected oriented nanofibers felt appears circular, and its external diameter equals the radius of outside metal ring 4, and its internal diameter equals the radius of inboard metal ring 5.
Described spinning solution is a poly-vinyl alcohol solution, and concentration is 8%～12%.
The voltage value of described high-voltage electrostatic generator is set to 45kV; The field intensity of described alternating voltage output device 8 is set to 0.33kV/mm, and frequency is set to 500Hz.
The used taylor cone shower nozzle 1 of the present invention is the open type disk, has avoided the generation of needle head structure device clogging, need not frequent change and cleans shower nozzle, has improved production efficiency greatly, and has used the back to clean easily.Taylor cone shower nozzle 1 adopts copper material to process, because conducting electricity very well of copper reduced energy loss; On the other hand, can know according to the ABC of electric field that the inwall tip edges electric-field intensity of taylor cone shower nozzle 1 is maximum, the surface tension that overcomes spinning solution more easily forms jet, has increased the output of oriented nanofibers.
Further specify the present invention with the instance that adopts polyvinyl alcohol (PVA) solution to carry out spinning below.Is that 10% polyvinyl alcohol (PVA) solution injects taylor cone shower nozzle 1 through external automatic infusion device with concentration, and the binding post on the taylor cone shower nozzle 12 is linked to each other with the high pressure positive electrode 7 of external high-voltage electrostatic generator; The vertical range that is provided with between outside metal ring 4 and the taylor cone shower nozzle 1 is 25cm; Outside metal ring 4 is linked to each other with alternating voltage output device 8; Inboard metal ring 5 is linked to each other with earth connection 9; Selecting thickness for use is that polyester (PET) film-shaped matrix of 100 μ m is as insulation film matrix 3; And be placed on metal ring 4 belows, the outside, and cover the circular zone between outside metal ring 4 and the inboard metal ring 5; Open high-voltage electrostatic generator, it is 45kV that voltage value is set; Open alternating voltage output device 8, it is 0.33kV/mm that field intensity is set, and frequency is 500Hz; As shown in Figure 4, the diameter of the oriented nanofibers of preparing is about 460nm (average diameter is about 460nm for the indicative of local optical microphotograph of nanofiber mats, 1000 times of multiplication factors).
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110447844.7A CN102433596B (en) | 2011-12-28 | 2011-12-28 | Gathering unit and method for Taylor cone shower nozzle electrostatic spinning-oriented nanofiber |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110447844.7A CN102433596B (en) | 2011-12-28 | 2011-12-28 | Gathering unit and method for Taylor cone shower nozzle electrostatic spinning-oriented nanofiber |
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| Publication Number | Publication Date |
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| CN102433596A true CN102433596A (en) | 2012-05-02 |
| CN102433596B CN102433596B (en) | 2014-07-02 |
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| CN201110447844.7A Expired - Fee Related CN102433596B (en) | 2011-12-28 | 2011-12-28 | Gathering unit and method for Taylor cone shower nozzle electrostatic spinning-oriented nanofiber |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060931A (en) * | 2012-12-25 | 2013-04-24 | 浙江大东南集团有限公司 | Sprayer-free large-area continuous nanofiber electrostatic spinning device |
| CN103103642A (en) * | 2013-02-22 | 2013-05-15 | 东华大学 | Device and method for orientation electrostatic spinning nanometer fiber vortex spun yarn |
| CN104611772A (en) * | 2015-01-15 | 2015-05-13 | 东华大学 | Electrostatic spinning device for preparing coaxial nanofiber in batches |
| CN108350618A (en) * | 2015-06-05 | 2018-07-31 | 利伯西科技大学 | The linear fibre formation of the polymer nanofiber coating of the linear formation of support of core and the method and apparatus for manufacturing it are constituted with encapsulating |
| CN112946050A (en) * | 2021-03-16 | 2021-06-11 | 扬州大学 | Anti-static multi-morphology experimental deposition device and method for electrostatic spinning experiment |
| CN112981556A (en) * | 2021-02-08 | 2021-06-18 | 华南理工大学 | Electrostatic spinning fiber collecting device and method for preparing nanofiber membrane with radial orientation structure |
| CN113710835A (en) * | 2018-12-14 | 2021-11-26 | 邵思恒 | Electrospinning apparatus and method for forming oriented fibers |
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-
2011
- 2011-12-28 CN CN201110447844.7A patent/CN102433596B/en not_active Expired - Fee Related
Patent Citations (3)
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Non-Patent Citations (1)
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060931A (en) * | 2012-12-25 | 2013-04-24 | 浙江大东南集团有限公司 | Sprayer-free large-area continuous nanofiber electrostatic spinning device |
| CN103103642A (en) * | 2013-02-22 | 2013-05-15 | 东华大学 | Device and method for orientation electrostatic spinning nanometer fiber vortex spun yarn |
| CN104611772A (en) * | 2015-01-15 | 2015-05-13 | 东华大学 | Electrostatic spinning device for preparing coaxial nanofiber in batches |
| CN104611772B (en) * | 2015-01-15 | 2017-01-25 | 东华大学 | An electrospinning device for batch preparation of coaxial nanofibers |
| CN108350618A (en) * | 2015-06-05 | 2018-07-31 | 利伯西科技大学 | The linear fibre formation of the polymer nanofiber coating of the linear formation of support of core and the method and apparatus for manufacturing it are constituted with encapsulating |
| CN108350618B (en) * | 2015-06-05 | 2022-02-01 | 利伯西科技大学 | Linear fiber formation and method and apparatus for making same |
| CN113710835A (en) * | 2018-12-14 | 2021-11-26 | 邵思恒 | Electrospinning apparatus and method for forming oriented fibers |
| CN113710835B (en) * | 2018-12-14 | 2023-09-22 | 邵思恒 | Electrospinning apparatus and methods for forming oriented fibers |
| CN112981556A (en) * | 2021-02-08 | 2021-06-18 | 华南理工大学 | Electrostatic spinning fiber collecting device and method for preparing nanofiber membrane with radial orientation structure |
| CN112981556B (en) * | 2021-02-08 | 2022-05-17 | 华南理工大学 | Electrospinning fiber collection device and method for preparing nanofiber membrane with radially oriented structure |
| CN112946050A (en) * | 2021-03-16 | 2021-06-11 | 扬州大学 | Anti-static multi-morphology experimental deposition device and method for electrostatic spinning experiment |
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