CN209082042U - A kind of novel plasma electrostatic spinning machine - Google Patents
A kind of novel plasma electrostatic spinning machine Download PDFInfo
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- CN209082042U CN209082042U CN201821864294.2U CN201821864294U CN209082042U CN 209082042 U CN209082042 U CN 209082042U CN 201821864294 U CN201821864294 U CN 201821864294U CN 209082042 U CN209082042 U CN 209082042U
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Abstract
The utility model belongs to technical field of textile equipment, discloses a kind of novel plasma electrostatic spinning machine, is added to DBD device, and the independence of both prominent electric field guarantees the uniform treatment to electrostatic spinning so that electrostatic spinning process is not influenced by other；Furthermore the utility model can in real time be handled spinning, sufficiently contacted with spinning solution in the also unformed seasonal plasma of spinning fibre, be processed spinning fibre i.e. in nanometer scale, process range is expanded to the inside of spinning by previous spinning surface.The utility model adjusts the pressure, ingredient, concentration of plasma source parameter or gas only to change the component and concentration of active particle, can handle a variety of electrospun fibers；Control variable is more easy, and variable is more apparent, it is easy to accomplish repeats to test, is equally easy to control variable and carries out inquiry test；It is easy to implement and the electrostatic spinning of different requirements is handled.
Description
Technical field
The utility model belongs to technical field of textile equipment more particularly to a kind of novel plasma electrostatic spinning machine.
Background technique
Currently, the prior art commonly used in the trade is such that
With the development of nanotechnology, the demand of nanofiber is gradually increased, and method of electrostatic spinning is a kind of promising
The method for preparing nanofiber.Using plasma, which handles nanofiber, will will increase the polarity of nanofiber surface and hydrophilic
Property, it is conducive to subsequent applications.It therefore is a kind of method of environment-friendly high-efficiency using corona treatment nanofiber.Due to plasma
Penetration capacity is limited, and processing weaving material after molding can only often be modified nano-material surface, for some three-dimensionals
Material, which is especially medical framework material, can not reach requirement.If can send out simultaneously during nano material is weaved to nanometer
Silk carries out surface and is modified, then it is modified to be conducive to significantly the biggish material property of thickness.
In conclusion problem of the existing technology is:
(1) the plasma device electric field of the processing electrospun fibers designed in the past is simultaneously uneven, can change Static Spinning
The field distribution of silk machine, influences the collection and performance of nanofiber；The plasma species of its generation are more single simultaneously, processing
It needs to redesign plasma device when difference electric discharge fiber.
Therefore needing to design a kind of plasma can be uniformly distributed, can generate under the premise of guaranteeing electrostatic spinning performance
A variety of plasmas and sufficiently with the integrated apparatus of fiber contacts.
(2) designed in the past processing electrospun fibers plasma device electric field distortion it is serious, point discharge etc. from
Daughter is easily converted to arc discharge, directly contacts with spinning solution and is highly vulnerable to breakage spinning material.
(3) plasma construction is limited by needle ring symmetrical structure and size, can only be carried out small area weaving, is unfavorable for reality
Border uses.
(4) plasma device of the processing electrospun fibers designed in the past needs impulse modulation high-voltage ac power,
Price is costly.
Solve the meaning of above-mentioned technical problem:
Electrostatic spinning process can be not being influenced by the novel plasma electrostatic spinning machine that the utility model designs
In the case of, the confined plasma of large area is generated in the direction perpendicular to spinning electric field, it can not only be in spinning phase to nanometer
Silk carries out material modification, while can pass through corresponding functional group's gas according to demand, is existed by the activation of plasma
Nano wire surface carries out functional group's grafting, to realize that the three-dimensional material of large area is modified.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of novel plasma electrostatic spinning machine.?
The vertical direction of electrostatic spinning taylor cone adds a kind of netted DBD plasma generator, does not interfere with each other in both guarantees electric field
While in nanometer scale material is carried out by the power and the parameters such as gas component, concentration that adjust plasma device it is whole
It is modifies, with the influence for overcoming the modified penetration depth of material weaving molding post plasma not strong.
The utility model is realized in this way a kind of novel plasma electrostatic spinning machine, the novel plasma are quiet
Electrospun machine includes:
Dielectric barrier discharge DBD device is handled for electrostatic spinning；
Dielectric barrier discharge DBD device includes: DBD device lateral electrode, DBD device inside mesh electrode, DBD device
Dielectric layer；
DBD device dielectric layer is hollow cylinder；Mesh electrode is circle on the inside of DBD device lateral electrode, DBD device
Electrode is simultaneously close to DBD device dielectric layer；
DBD device dielectric layer of the inner wall of DBD device lateral electrode with annular, DBD device dielectric layer and circular Jie
The cathode contact of matter barrier discharge DBD device；
Mesh electrode is reticular structure on the inside of DBD device, generates for plasma in net surface, is distributed plasma
Uniformly；
The electric field of dielectric barrier discharge DBD device is vertical with the electric field of electrostatic spinning machine.
Further, DBD device bottom plate is coated with outside DBD device dielectric layer；It has been screwed on DBD device bottom plate by bolt
Snorkel；Snorkel is communicated with the discharging chamber inside DBD device dielectric layer.
Further, snorkel is communicated with DBD generator；DBD generator connects DBD power supply by conducting wire.
Further, DBD power supply is separately connected collecting board, syringe by conducting wire；The spinning solution that syringe lower part sprays is defeated
Being sent to DBD device dielectric layer is discharging chamber, carries out spinning.
Further, DBD power supply also connects DBD device lateral electrode, DBD device inside mesh electrode by conducting wire.
Further, DBD device lateral electrode, DBD device inside mesh electrode are copper, aluminium or remaining conductive metal.
DBD power supply is high-voltage alternating, a variety of power supplies of high-voltage pulse.
Plasma is discharge gas, is the mixed gas of one or more of air, nitrogen, helium, argon gas.It can root
It is mixed into a small amount of functional group's gas according to actual needs, is ionized by plasma discharge and is activated and access in spinning fibre.
In conclusion the advantages of the utility model and good effect are as follows:
The utility model proposes integrated novel electrostatic spinning machine, be equally applicable to be modified by plasma
A series of devices.The invention devises the DBD device of energy large area Uniform Discharge in the direction perpendicular to electrostatic spinning electric field,
Generated plasma active is high and does not generate electric arc, so that electrostatic spinning process is not influenced by other, guarantees to Static Spinning
The uniform treatment of silk；Furthermore the invention can in real time be handled spinning, be filled in the also unformed seasonal plasma of spinning fibre
Divide and contacted with spinning solution, be processed spinning fibre i.e. in nanometer scale, process range is extended by previous spinning surface
To the inside of spinning；The invention simultaneously can change only by adusting the pressure of plasma source parameter or gas, ingredient, concentration
The component and concentration for becoming active particle, can handle a variety of electrospun fibers, when such as using atmospherical discharges, be lower than in power density
0.4W/cm-2~0.6W/cm-2When, this device mainly generates ozone and ozone and NOXMixing；And it is higher than in power density
0.6W/cm-2When, mainly generate active NOXAntipathogenic composition has greatly excellent on the three-dimensional lasting anti-biotic material of weaving
Gesture；Meanwhile the design can also be discharged by being passed through suitable functional group's gas, plasma makes functional group's activation simultaneously
Grafting is to fiber filament, so that material property is stronger；Furthermore invention control variable is more easy, and variable is more apparent, is easy to
It realizes and repeats to test, be equally easy to control variable and carry out inquiry test.It is easy to implement the electrostatic spinning progress to different requirements
Processing.
Detailed description of the invention
Fig. 1 is dielectric barrier discharge DBD device figure provided by the embodiment of the utility model.
In figure: 1, DBD device lateral electrode；2, mesh electrode on the inside of DBD device；3, DBD device dielectric layer.
Fig. 2 is electrostatic spinning machine wiring construction schematic diagram provided by the embodiment of the utility model.
In figure: 1, DBD device lateral electrode；2, mesh electrode on the inside of DBD device；3, DBD device dielectric layer；4, DBD is filled
Bottom set plate；5, snorkel；6, bolt.
Fig. 3 is experimental provision structure chart provided by the embodiment of the utility model.
In figure: 1, DBD device lateral electrode；2, mesh electrode on the inside of DBD device；3, DBD device dielectric layer；7, it injects
Device；8, spinning solution；9, electrostatic spinning machine high voltage power supply；10, DBD power supply；11, collecting board.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain that this is practical
It is novel, it is not used to limit the utility model.
A kind of netted plasma generator is added in the vertical direction of electrostatic spinning taylor cone, is guaranteeing that the two electric field is mutual
While interference by adjust plasma device power and the parameters such as gas component, concentration in nanometer scale to material
Carry out it is bulk modified, with the influence for overcoming the modified penetration depth of material weaving molding post plasma not strong.
The utility model is further described below with reference to concrete analysis.
Novel plasma electrostatic spinning machine provided by the embodiment of the utility model is to the processing method of spinning fibre to spinning
The processing method of silk fiber includes: the plasma using the dielectric barrier discharge device generation perpendicular to taylor cone direction to quiet
Electricity spinning fibre is handled, and handles spinning fibre just to realize spinning fibre by plasma when also non-condensing
Surface is modified.
Electrode can be copper, aluminum or remaining conductive metal system.
High voltage power supply can be the diversified forms such as exchange, pulse.
The size adjustable of dielectric barrier discharge device.
Discharge gas can for air, nitrogen, helium, argon gas or more than several mixed gas.
Plasma discharge power Independent adjustable.
The time and length that electrostatic spinning liquid is handled in heating region are adjustable.
The utility model designs a kind of dielectric barrier discharge (DBD) dress comprising gamut, uniform processing electrostatic spinning
The novel electrostatic spinning machine set is handled for electrostatic spinning.
The dielectric barrier discharge DBD device of electrostatic spinning is handled, medium is hollow cylinder, and two electrodes are circular electrode
And be close to medium, i.e., the inner wall of lateral electrode is with annular medium, medium inside and circular DBD cathode contact.In DBD
Lateral electrode is reticular structure, and plasma will be generated in net surface, to guarantee that plasma is evenly distributed.DBD device at this time
Electric field is vertical with the electric field of electrostatic spinning machine, i.e., the electric field that DBD device generates will not interfere electrostatic spinning.
The plasma that DBD electric discharge generates, which will be diffused up, to be contacted to handle spinning with spinning solution, that is, is spun
The plasma that DBD is generated when silk liquid does not volatilize completely contacts in real time, adequately with spinning.Spinning liquid syringe is filled to DBD
Distance is adjustable between setting, and the two hypotelorism electrostatic spinning electric field can interact with DBD electric field influences the effect of electrostatic spinning, and two
Person's hypertelorism fiber may be condensed to micron dimension Shi Caiyu Plasma contact, i.e., most of fiber is not by plasma
It is modified.
The discharge power Independent adjustable of DBD device, main long-life active constituent is different under different discharge powers, passes through
The discharge power for adjusting DBD can analyze different activities particle to the disposition of spinning fibre.In addition, intermediate ventilated body was both
It can be air, the gas that can also be specified from extraneous input, gas pressure intensity, ingredient, concentration are adjustable.It can be by changing gas
The main active that condition carrys out plasma is controlled.
The utility model is further described combined with specific embodiments below.
Embodiment 1
DBD schematic device such as Fig. 1；It include: DBD device lateral electrode 1, DBD device inside mesh electrode 2, DBD device
Dielectric layer 3.
Gas component, concentration, pressure can be changed in electrostatic spinning machine wiring construction schematic diagram such as Fig. 2.Include:
DBD device lateral electrode 1, DBD device dielectric layer 3, DBD device bottom plate 4, leads to DBD device inside mesh electrode 2
Tracheae 5, bolt 6.
DBD device electrode positive and negative anodes can be free, and mesh electrode is grounded by this example.
A certain amount of spinning solution is put into syringe, syringe is located at the surface of DBD device.Electrode is infused to spinning solution
The distance of emitter can be by fixed DBD device, and up and down adjustment syringe position is adjusted.To guarantee that plasma can fill
Tap touching fiber, while the transverse electric field of DBD device does not affect the electric field of electrostatic spinning.
It is powered to DBD device, discharging condition such as discharge power can be configured as needed.
The power supply of electrostatic spinning machine is connected after DBD device stable discharge, spinning fibre will will receive in forming process
The abundant processing of gas ions will be fallen on collecting board in the effect of gravity.
Certain time is needed to wait for after electric discharge, again by collecting board after condensing plasma diffusion and spinning fibre completely
On spinning fibre take out.
Embodiment 2
Ventable figure DBD device
Ventilate figure DBD schematic device such as Fig. 3.It include: DBD device lateral electrode 1, DBD device inside mesh electrode
2, DBD device dielectric layer 3, syringe 7, spinning solution 8, DBD power supply 9, DBD energy source 10, collecting board 11.
Two bottom covers of the cylindrical body that opposite Fig. 1, DBD device inside mesh electrode 1 are surrounded have installed circular glass plate additional,
Wherein one pressure gauge is terminated with to monitor internal pressure.
Bottom cover install additional 2 circular glass plates carry out punch and use the hard seal of tube, stereoplasm tube outlet installation one bolt
Control gas cut-off and flow rate.
Discharge gas ingredient than air, can also be rare gas, nitrogen, one of oxygen or several mixing.
The bolt of Fig. 3 shown device is opened, the gas cylinder input designated gas of gas flow controller, dress were connected in one end
Air in setting will be discharged from the other end.Air inlet is in lower end if being less than air for ventilated volume density, and otherwise air inlet is upper
End.
Venting process continues 5 to gas outlet is closed after ten minutes, and gas pressure intensity is still atmospheric pressure in device at this time.If desired
It is with air pressure capable of being increased, continue to input gas, if desired subtracts air pressure and then stop inputting gas, air inlet connects aspiration pump and is evacuated.
Air inlet is closed, 1 process of embodiment is repeated.
The utility model is further described below with reference to concrete analysis.
Novel plasma electrostatic spinning machine provided by the embodiment of the utility model includes:
Dielectric barrier discharge DBD device is handled for electrostatic spinning；
Dielectric barrier discharge DBD device includes: DBD device lateral electrode, DBD device inside mesh electrode, DBD device
Dielectric layer；
DBD device dielectric layer is hollow cylinder；Mesh electrode is circle on the inside of DBD device lateral electrode, DBD device
Electrode is simultaneously close to DBD device dielectric layer；
DBD device dielectric layer of the inner wall of DBD device lateral electrode with annular, DBD device dielectric layer and circular Jie
The cathode contact of matter barrier discharge DBD device；
Mesh electrode is reticular structure on the inside of DBD device, generates for plasma in net surface, is distributed plasma
Uniformly；
The electric field of dielectric barrier discharge DBD device is vertical with the electric field of electrostatic spinning machine.
DBD device bottom plate is coated with outside DBD device dielectric layer；Snorkel has been screwed by bolt on DBD device bottom plate；
Snorkel is communicated with the discharging chamber inside DBD device dielectric layer.
Snorkel is communicated with DBD generator；DBD generator connects DBD power supply by conducting wire.
DBD power supply is separately connected collecting board, syringe by conducting wire；The spinning solution that syringe lower part sprays is transported to DBD
Device dielectric layer is discharging chamber, carries out spinning.
DBD power supply also connects DBD device lateral electrode, DBD device inside mesh electrode by conducting wire.On the outside of DBD device
Mesh electrode can be copper, aluminum or remaining conductive metal system on the inside of electrode, DBD device.
DBD power supply can be the diversified forms such as high-voltage alternating, high-voltage pulse.
The size adjustable of dielectric barrier discharge device.
The discharge gas of plasma can for air, nitrogen, helium, argon gas or more than several mixed gas.
Plasma discharge power Independent adjustable.
The time and length that electrostatic spinning liquid is handled in heating region are adjustable.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (6)
1. a kind of novel plasma electrostatic spinning machine, which is characterized in that the novel plasma electrostatic spinning machine includes:
Dielectric barrier discharge DBD device is handled for electrostatic spinning；
Dielectric barrier discharge DBD device includes: DBD device lateral electrode, DBD device inside mesh electrode, DBD device medium
Layer；
DBD device dielectric layer is hollow cylinder；Mesh electrode is circular electrode on the inside of DBD device lateral electrode, DBD device
And it is close to DBD device dielectric layer；
DBD device dielectric layer of the inner wall of DBD device lateral electrode with annular, DBD device dielectric layer and circular medium hinder
The cathode contact of gear electric discharge DBD device；
Mesh electrode is reticular structure on the inside of DBD device, generates for plasma in net surface, keeps plasma distribution equal
It is even；
The electric field of dielectric barrier discharge DBD device is vertical with the electric field of electrostatic spinning machine.
2. novel plasma electrostatic spinning machine as described in claim 1, which is characterized in that packet outside DBD device dielectric layer
It is covered with DBD device bottom plate；Snorkel has been screwed by bolt on DBD device bottom plate；Inside snorkel and DBD device dielectric layer
Discharging chamber communicates.
3. novel plasma electrostatic spinning machine as claimed in claim 2, which is characterized in that snorkel is communicated with DBD
Device；DBD generator connects DBD power supply by conducting wire.
4. novel plasma electrostatic spinning machine as claimed in claim 3, which is characterized in that DBD power supply is distinguished by conducting wire
Connect collecting board, syringe；It is discharging chamber that the spinning solution that syringe lower part sprays, which is transported to DBD device dielectric layer, is spun
Silk.
5. novel plasma electrostatic spinning machine as described in claim 1, which is characterized in that DBD power supply is also connected by conducting wire
Connect DBD device lateral electrode, DBD device inside mesh electrode.
6. novel plasma electrostatic spinning machine as described in claim 1, which is characterized in that DBD device lateral electrode, DBD
Mesh electrode is copper, aluminium or remaining conductive metal on the inside of device；
DBD power supply is high-voltage alternating, a variety of power supplies of high-voltage pulse.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821864294.2U CN209082042U (en) | 2018-11-13 | 2018-11-13 | A kind of novel plasma electrostatic spinning machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821864294.2U CN209082042U (en) | 2018-11-13 | 2018-11-13 | A kind of novel plasma electrostatic spinning machine |
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| CN209082042U true CN209082042U (en) | 2019-07-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109112645A (en) * | 2018-11-13 | 2019-01-01 | 华中科技大学 | A kind of novel plasma electrostatic spinning machine and the processing method to spinning fibre |
| CN111010790A (en) * | 2019-12-05 | 2020-04-14 | 北京东方计量测试研究所 | Dielectric barrier discharge plasma reactor and sterilizing device |
-
2018
- 2018-11-13 CN CN201821864294.2U patent/CN209082042U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109112645A (en) * | 2018-11-13 | 2019-01-01 | 华中科技大学 | A kind of novel plasma electrostatic spinning machine and the processing method to spinning fibre |
| CN109112645B (en) * | 2018-11-13 | 2023-08-15 | 华中科技大学 | Plasma electrostatic spinning machine and method for processing spinning fiber |
| CN111010790A (en) * | 2019-12-05 | 2020-04-14 | 北京东方计量测试研究所 | Dielectric barrier discharge plasma reactor and sterilizing device |
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