CN103243397A - Multiple-electric-field coupling strong-force-drafting electrostatic spinning device and method - Google Patents
Multiple-electric-field coupling strong-force-drafting electrostatic spinning device and method Download PDFInfo
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- CN103243397A CN103243397A CN2013101595645A CN201310159564A CN103243397A CN 103243397 A CN103243397 A CN 103243397A CN 2013101595645 A CN2013101595645 A CN 2013101595645A CN 201310159564 A CN201310159564 A CN 201310159564A CN 103243397 A CN103243397 A CN 103243397A
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Abstract
The invention discloses multiple-electric-field coupling strong-force-drafting electrostatic spinning device and method, and belongs to the field of electrostatic spinning. The device comprises a spinning sprayer, an electrode plate I, an electrode plate II, a high-voltage electrostatic generator I, a high-voltage electrostatic generator II, a fiber collecting plate and a grounding electrode. The electrode plate I is an electrode plate with a hole in the middle, and the electrode plate II is an electrode plate without a hole in the middle. The spinning sprayer is connected with the grounding electrode. The electrode plate I is mounted at a position with certain distance right below the spinning sprayer and is connected with a high-voltage positive terminal of the high-voltage electrostatic generator I. The electrode plate II is mounted at a position with certain distance right below the electrode plate I and is connected with a high-voltage positive terminal of the high-voltage electrostatic generator II. The fiber collecting plate is placed above the electrode plate II. Through adjustment of distance between the electrode plates and the efficient spinning sprayer on an internal conical surface, distance between the electrodes and voltages of the high-voltage electrostatic generators, certain adjustment can be made to the fineness of fibers, and collection methods of the fibers can be diversified.
Description
Technical field
The present invention relates to electrostatic spinning apparatus and the method for the powerful drawing-off of a kind of many field coupling, belong to the electrostatic spinning field.
Background technology
The principle of electrostatic spinning forms electric field between the two by applying high voltage between shower nozzle and receiving system, making exactly, and polarized melt or solution overcome surface tension under the electric field force effect, forms jet, is ejected on the dash receiver, forms ultra-fine fiber.
In recent years, the research and development of nanometer technology makes the electrostatic spinning technique that can prepare nano-fiber material also be subjected to more concern, and one after another it is developed research, and electrostatic spinning technique has become the most effective, the most important method of preparation nanofiber.But in the present electrostatic spinning, nearly all be to adopt the massive plate electrode of single-stage as collecting electrode, it has only the one-level electric field, and is limited to the drawing-off effect of spun silk, and spun fineness that can reach of institute is limited.
People such as the Yao Yongyi of Sichuan University have mentioned a kind of air-flow-electrostatic spinning machine in document " method of electrostatic spinning and air-flow-method of electrostatic spinning prepare the polysulfones nanofiber ", by at common air-channel system of single nozzle needle shower nozzle outer wrapping, the correlation stream of making a concerted effort with the frictional force between electrostatic force and air-flow and polymer jet stretches, and makes spun fibrous refinement.This method uses air-flow to assist electrostatic spinning, can make spun fibrous refinement, but this nozzle structure complexity is unfavorable for commercial application, and also needs the extra cover feeder that increases, and cost increase and energy consumption are big.
People such as the summertime great waves of Beijing University of Chemical Technology mention the application dissaving polymer polypropylene are carried out modification in document " application of dissaving polymer in melt electrostatic spinning ", to reduce the viscosity of melt polypropylene, make spun fiber thinner.
Up to the present, also there is not a kind of simple pure physical method to realize the refinement of electrospun fibers.
The unstability of solution jet that Deitzel etc. are artificial arranges a plurality of charged rings and comes the whip of about bundle fiber moving between spinning head and gatherer, with the deposition path of control fiber, but he does not have the many electric fields of research and utilization to come fiber is carried out refinement.
Summary of the invention
The present invention proposes electrostatic spinning apparatus and the method for the powerful drawing-off of a kind of many field coupling, it is realized by multistage centre electrode with holes is set under spinning nozzle, thereby under spinning nozzle, form multistage electric field, in the fiber dropping process, realization makes spun fiber thinner to the repeatedly drawing-off of fiber.This device and method is simple, is fit to laboratory research and commercial application.
The electrostatic spinning apparatus of the powerful drawing-off of a kind of many field coupling of the present invention, it mainly comprises spinning nozzle, battery lead plate one, battery lead plate two, HV generator one, HV generator two, fiber dash receiver, earth electrode, wherein, battery lead plate one is middle battery lead plate with holes, battery lead plate two can be middle battery lead plate with holes, battery lead plate not with holes in the middle of also can being, battery lead plate one and battery lead plate two can be circular, square, triangle or polygon arbitrarily; Spinning nozzle links to each other with earth electrode, battery lead plate one be installed in spinning nozzle under a distance, battery lead plate one links to each other with the high-voltage positive electrode terminal of HV generator one, battery lead plate two be installed in battery lead plate one under a distance, battery lead plate two links to each other with the high-voltage positive electrode terminal of HV generator two, and the fiber dash receiver is placed on the top of battery lead plate two.
During spinning work, treat that spinning nozzle is ready, open HV generator one and HV generator two successively, make one of spinning nozzle and battery lead plate form first order electric field, two of battery lead plate one and battery lead plates form second level electric field, under the effect of electric field force, spinning nozzle begins spinning, silk is subjected to a drawing-off effect in first order electric field, by the circular hole on the battery lead plate one, enter second level electric field afterwards, be subjected to the effect of drawing-off again of second level electric field, silk further attenuates, and filum terminale drops on the fiber dash receiver and is received.
The electrostatic spinning apparatus of the powerful drawing-off of a kind of many field coupling of the present invention, its battery lead plate one battery lead plate with holes in the middle of being, its shape can be circular, square, triangle or polygon arbitrarily.
The electrostatic spinning apparatus of the powerful drawing-off of a kind of many field coupling of the present invention, its battery lead plate two battery lead plate with holes in the middle of can being, also can be in the middle of massive plate not with holes, its shape can be circular, square, triangle or polygon arbitrarily.
Electrospinning process and the device of the powerful drawing-off of a kind of many field coupling of the present invention, fiber can be collected above battery lead plate two, also battery lead plate two can be changed into middle battery lead plate with holes, the collection of fiber dash receiver realization fiber below battery lead plate two, fiber can adopt massive plate to collect, also can adopt the lapping machine to collect continuously, also can adopt roller to collect, to realize the orderly orientation collection to fiber, when the linear velocity of roller during greater than the falling speed of fiber, can also play further stretching action to fiber, make fiber refinement more.
The electrostatic spinning apparatus of the powerful drawing-off of a kind of many field coupling of the present invention, below spinning nozzle, it is integer and n that n(n can be set〉2) layer battery lead plate, form multistage electric field, fiber is produced repeatedly drawing-off.
The electrospinning process of the powerful drawing-off of a kind of many field coupling of the present invention by the middle battery lead plate with holes of multilayer is set, forms multistage electric field below spinning nozzle, the spun silk of spinning nozzle is implemented repeatedly drawing-off, realizes the refinement of fiber with this; Control by to institute's making alive size on distance and the battery lead plate between battery lead plate realizes the regulation and control to fibre fineness.
By above technical scheme as can be known, the present invention compared with prior art has following advantage:
1. in the process that fiber falls, adopt multi-electrode to come fiber is carried out drawing-off, can make spun fiber thinner.By the distance between adjusting battery lead plate and the efficient spinning nozzle of inner conical surface and battery lead plate and the battery lead plate, and the voltage of HV generator, can do certain adjusting to the fineness of fiber.
2. adopt electrode with holes, realize the reception of fiber below electrode, this makes that the collection mode of fiber can be diversified, to adapt to different demands.
3. this device and method is simple, is fit to laboratory research and commercial application.
Description of drawings
Fig. 1 is the schematic diagram of the electrostatic spinning apparatus of the powerful drawing-off of a kind of many field coupling of the present invention.
Fig. 2 is the another kind of working method schematic diagram of the electrostatic spinning apparatus of the powerful drawing-off of a kind of many field coupling of the present invention.
The 1-spinning nozzle, 2-battery lead plate one, 3-fiber dash receiver, 4-battery lead plate two, the 5-earth electrode, 6-HV generator one, 7-HV generator two, 8-battery lead plate three, 9-battery lead plate four, 10-roller receiving system, 11-HV generator three, 12-HV generator four
The specific embodiment
As shown in Figure 1, the electrostatic spinning apparatus of the powerful drawing-off of a kind of many field coupling of the present invention, mainly comprise spinning nozzle 1, battery lead plate 1, battery lead plate 24, HV generator 1, HV generator 27, fiber dash receiver 3, earth electrode 5, wherein, battery lead plate 1 is middle battery lead plates with holes, battery lead plate 24 can be middle battery lead plate with holes, battery lead plate not with holes in the middle of also can being, battery lead plate 1 and battery lead plate 24 can be circular, square, triangle or polygon arbitrarily; Spinning nozzle 1 links to each other with earth electrode 5, battery lead plate 1 be installed in spinning nozzle 1 under a distance, battery lead plate 1 links to each other with the high-voltage positive electrode terminal of HV generator 1, battery lead plate 24 be installed in battery lead plate 1 under a distance, battery lead plate 24 links to each other with the high-voltage positive electrode terminal of HV generator 27, and fiber dash receiver 3 is placed on the top of battery lead plate 24.
During spinning work, treat that spinning nozzle 1 is ready, open HV generator 1 and HV generator 27 successively, make one 2 of spinning nozzle 1 and battery lead plates form first order electric field, 24 of battery lead plate 1 and battery lead plates form second level electric field, under the effect of electric field force, spinning nozzle 1 beginning spinning, silk is subjected to a drawing-off effect in first order electric field, by the circular hole on the battery lead plate 1, enter second level electric field afterwards, be subjected to the effect of drawing-off again of second level electric field, silk further attenuates, and filum terminale drops on the fiber dash receiver 3 and is received.
As shown in Figure 2, this embodiment is identical with the operation principle of embodiment 1, difference is, be arranged with the triple electrode plate at spinning nozzle, battery lead plate 1, battery lead plate 38, battery lead plate 49, three electrode plate all are middle battery lead plate with holes, below battery lead plate 49, roller receiving system 10 is installed is used for receiving fiber.During spinning, spinning nozzle 1 links to each other with earth electrode 5, battery lead plate 1 links to each other with the high-voltage positive electrode terminal of HV generator 1, battery lead plate 38 links to each other with the high-voltage positive electrode terminal of HV generator 3 11, battery lead plate 49 links to each other with the high-voltage positive electrode terminal of HV generator 4 12, when spinning nozzle is ready, open HV generator 1 successively, HV generator 38, HV generator 49, and open the motor of roller receiving system 10 simultaneously, under the effect of electric field force, spinning nozzle 1 spins silk, under three grades of effect of electric field, be subjected to three drawing-off effects, successively by the hole on the triple electrode plate, finally received by the roller receiving system 10 under the battery lead plate 49.
Claims (6)
1. the electrostatic spinning apparatus of the powerful drawing-off of field coupling more than a kind, it is characterized in that: it mainly comprises spinning nozzle, battery lead plate one, battery lead plate two, HV generator one, HV generator two, fiber dash receiver, earth electrode, wherein, battery lead plate one is middle battery lead plate with holes, is middle battery lead plate not with holes; Spinning nozzle links to each other with earth electrode, battery lead plate one be installed in spinning nozzle under a distance, battery lead plate one links to each other with the high-voltage positive electrode terminal of HV generator one, battery lead plate two be installed in battery lead plate one under a distance, battery lead plate two links to each other with the high-voltage positive electrode terminal of HV generator two, and the fiber dash receiver is placed on the top of battery lead plate two.
2. the electrostatic spinning apparatus of the powerful drawing-off of a kind of many field coupling according to claim 1 is characterized in that: battery lead plate one battery lead plate with holes in the middle of being, its shape can be circular, square, triangle or polygon arbitrarily.
3. the electrostatic spinning apparatus of the powerful drawing-off of a kind of many field coupling according to claim 1 is characterized in that: battery lead plate two battery lead plate with holes in the middle of being, its shape can be circular, square, triangle or polygon arbitrarily.
4. the electrostatic spinning apparatus of the powerful drawing-off of a kind of many field coupling according to claim 3, it is characterized in that: the fiber dash receiver is below battery lead plate two, and the fiber dash receiver is massive plate, or is the lapping machine, or is roller.
5. the electrostatic spinning apparatus of the powerful drawing-off of a kind of many field coupling according to claim 1, it is characterized in that: below spinning nozzle, n layer battery lead plate can be set, n is integer and n〉2.
6. the method that adopts the electrostatic spinning apparatus of the powerful drawing-off of the described a kind of many field coupling of claim 1 to carry out spinning, it is characterized in that: during spinning work, treat that spinning nozzle is ready, open HV generator one and HV generator two successively, make one of spinning nozzle and battery lead plate form first order electric field, two of battery lead plate one and battery lead plates form second level electric field, under the effect of electric field force, spinning nozzle begins spinning, silk is subjected to a drawing-off effect in first order electric field, afterwards by the circular hole on the battery lead plate one, enter second level electric field, be subjected to the effect of drawing-off again of second level electric field, silk further attenuates, and filum terminale drops on the fiber dash receiver and is received.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101595645A CN103243397A (en) | 2013-05-03 | 2013-05-03 | Multiple-electric-field coupling strong-force-drafting electrostatic spinning device and method |
| PCT/CN2014/076385 WO2014177039A1 (en) | 2013-05-03 | 2014-04-28 | Melt differential electrospinning device and process |
| US14/888,059 US10344400B2 (en) | 2013-05-03 | 2014-04-28 | Melt differential electrospinning device and process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101595645A CN103243397A (en) | 2013-05-03 | 2013-05-03 | Multiple-electric-field coupling strong-force-drafting electrostatic spinning device and method |
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| CN103243397A true CN103243397A (en) | 2013-08-14 |
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| CN2013101595645A Pending CN103243397A (en) | 2013-05-03 | 2013-05-03 | Multiple-electric-field coupling strong-force-drafting electrostatic spinning device and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572387A (en) * | 2013-11-11 | 2014-02-12 | 北京化工大学 | Melt differential electrostatic spinning device and process |
| WO2014177039A1 (en) * | 2013-05-03 | 2014-11-06 | 北京化工大学 | Melt differential electrospinning device and process |
| CN109487348A (en) * | 2018-11-28 | 2019-03-19 | 青岛科技大学 | A kind of electrostatic spinning nozzle tip induced field strength enhancement device and method |
| CN109913959A (en) * | 2019-04-11 | 2019-06-21 | 上海工程技术大学 | Melt electrostatic spinning method and its product based on reverse enhancing compound field |
| CN110004502A (en) * | 2019-04-11 | 2019-07-12 | 上海工程技术大学 | Melt electrostatic spinning method and its product based on enhancing compound field in the same direction |
| CN111926461A (en) * | 2020-08-27 | 2020-11-13 | 北京化工大学 | Double-electrode high-voltage electrostatic spinning melt-blowing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7086846B2 (en) * | 2001-01-10 | 2006-08-08 | The United States Of America As Represented By The Secretary Of The Army | Electro spinning of submicron diameter polymer filaments |
| JP2008223186A (en) * | 2007-03-14 | 2008-09-25 | Mecc Co Ltd | Method for producing nanofibers and apparatus therefor |
-
2013
- 2013-05-03 CN CN2013101595645A patent/CN103243397A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7086846B2 (en) * | 2001-01-10 | 2006-08-08 | The United States Of America As Represented By The Secretary Of The Army | Electro spinning of submicron diameter polymer filaments |
| JP2008223186A (en) * | 2007-03-14 | 2008-09-25 | Mecc Co Ltd | Method for producing nanofibers and apparatus therefor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014177039A1 (en) * | 2013-05-03 | 2014-11-06 | 北京化工大学 | Melt differential electrospinning device and process |
| US10344400B2 (en) | 2013-05-03 | 2019-07-09 | Beijing University Of Chemical Technology | Melt differential electrospinning device and process |
| CN103572387A (en) * | 2013-11-11 | 2014-02-12 | 北京化工大学 | Melt differential electrostatic spinning device and process |
| CN109487348A (en) * | 2018-11-28 | 2019-03-19 | 青岛科技大学 | A kind of electrostatic spinning nozzle tip induced field strength enhancement device and method |
| CN109913959A (en) * | 2019-04-11 | 2019-06-21 | 上海工程技术大学 | Melt electrostatic spinning method and its product based on reverse enhancing compound field |
| CN110004502A (en) * | 2019-04-11 | 2019-07-12 | 上海工程技术大学 | Melt electrostatic spinning method and its product based on enhancing compound field in the same direction |
| CN111926461A (en) * | 2020-08-27 | 2020-11-13 | 北京化工大学 | Double-electrode high-voltage electrostatic spinning melt-blowing device |
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Application publication date: 20130814 |