CN106319650B - A kind of application method of electrostatic spinning nozzle - Google Patents
A kind of application method of electrostatic spinning nozzle Download PDFInfo
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- CN106319650B CN106319650B CN201611066613.0A CN201611066613A CN106319650B CN 106319650 B CN106319650 B CN 106319650B CN 201611066613 A CN201611066613 A CN 201611066613A CN 106319650 B CN106319650 B CN 106319650B
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- supervisor
- pendular ring
- equal pendular
- auxiliary tube
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
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- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The present invention provides a kind of application method of electrostatic spinning nozzle, the nozzle used is made of supervisor and four auxiliary tubes.Operation includes：The first step, the property of solution according to used in experiment clean supervisor and auxiliary tube with solvent or deionized water.Second step installs the feed flow of supervisor and auxiliary tube.Third walks, and setup parameter is initially powered up spinning etc..Present invention has the advantages that it can realize the mixing electrostatic spinning of the solution of two or more different components, functional fiber material for processing nucleocapsid, porous structure provides very big facility, it can be widely applied for the fields such as medicament slow release, organizational project and pharmaceutical carrier, it can be operated according to single needle pipe nozzle, operating procedure is simple.
Description
Technical field
The present invention relates to a kind of methods of electrostatic spinning nozzle, are that one kind is obtained based on method of electrostatic spinning from using
The application method of the electrostatic spinning nozzle of composite fibre.
Background technology
Based on the nanofiber that method of electrostatic spinning obtains because diameter is small, large specific surface area, prepare it is simple, of low cost and
The advantages that technique is controllable and as research hotspot.For at present, high-performance, the multi-functional composite Nano for how preparing needs are fine
Dimension is the key that be studied.Coaxial electrostatic spinning method is that a kind of work that device develops is improved on the basis of electrostatic spinning
Skill, can be used to prepare the fibrous material of specific function structure, its appearance compensate for common electrostatic spin processes prepare it is unconventional
The defects of existing during structural fibers.But nozzle and operating procedure due to coaxial electrostatic spinning and its stringent, do not allow
Generation easy to control is double-deck or compound fiber, the distance that particularly interior syringe needle pipeline stretches out outer syringe needle pipeline are to influence coaxial injection
Flow the key factor formed：When distance is too small, interior conduit solution is easily blocked by the solution of outer layer pipe, and interior syringe needle solution does not have
Method smoothly flows out, and internal layer solution cannot stretch under electric field force effect at this time, and only outer layer solution forms jet stream.Distance is too
When big, solution along inner tubal wall outer surface flow out, interior syringe needle extension can not be coated completely, so cause many solution from
Syringe needle surrounding projects, and can not obtain stable coaxial injection stream.
Therefore, it solves the above problems, needs to design a kind of accurate, coaxial electrostatic spinning nozzle of easy processing and its user
Method, can prepare the support of the fibrous material offer technology of core-cored structure, hollow structure and multilevel hierarchy, and then widen nanometer
The application field of fiber.
Invention content
To solve the above problems, the technical scheme is that：A kind of application method of electrostatic spinning nozzle, what is used is quiet
Electrospun nozzle is made of supervisor and four auxiliary tubes.It is characterized in that：The end of supervisor is by being in that the closing tip of sharp cone distal seals
It closes, in distance closing tip base H3The place of size, processing is there are one lower equal pendular ring, the pendular ring H under distance2The ground of size
Side, processing equal pendular ring there are one in, the pendular ring H in distance1The place of size, there are one upper equal pendular rings for processing.Equal pendular ring
Design is to be coated uniformly on the different solutions of above-mentioned outlet well in supervisor's circumferential wall, avoids the occurrence of line stream and causes each
Kind solution mixing is uneven.Apart from upper equal pendular ring h1The place of size, processing are equipped with that 4 inside/outside diameter sizes are consistent, cross
Arrangement, the concordant auxiliary tube in an aperture lines of opening.Auxiliary tube passes through high temperature resistant bonding or the tie point of Welding
It is connected with supervisor.The design of auxiliary tube in avoiding former coaxial electrostatic spinning nozzle inside and outside nozzle needle, in spinning process,
Since the parameter settings such as inside and outside syringe needle spacing, length are bad, and caused by its interior needle and outer needle different component solution mixing not
Equal problem.In lower equal pendular ring, processing is responsible for axially there are one vertical between equal pendular ring in, and lateral direction penetrating supervisor's internal diameter passes through
Port forms and outlet is penetrated through under 2；In upper equal pendular ring, processing is responsible for axially there are one vertical between equal pendular ring in, is laterally passed through
The openings of logical supervisor's internal diameter form 2 upper perforation outlets；Perforation outlet totally 4 outlet phases under 2 upper perforation outlets and 2
Mutual cruciform symmetry arrangement, corresponds with 4 auxiliary tubes on a vertical line respectively.The liquid that design flows out convenient for auxiliary tube
Outlet is faced, in favor of mixing or coating.The design of the transverse opening of supervisor changes inside and outside former Coaxial nozzle tube opening all
Unanimously, it is easy to cause the problem of each component has little time mutual mixing or bad interior outer cladding.Mutual cruciform symmetry arrangement is passed through
Port designs, and solution is avoided to accumulate in one direction, is easy to solution and sprawls.It is put down on upper equal pendular ring surface and to auxiliary tube opening
Supervisor surface more than neat line is processed into the auxiliary liquid mutually infiltrated with the solution to circulate in auxiliary tube and handles surface.This is the present invention
One of innovative point, it is therefore intended that the solution of auxiliary tube outflow is rapidly paved with supervisor surface, for uniform cladding in next step
Another solution that another solution of supervisor outlet outflow or uniformly mixed charge export outflow is prepared.Upper equal liquid
Supervisor surface, lower equal pendular ring below ring and in equal pendular ring surfaces, until closing tip surface, is machined with being flowed in supervisor
The main liquid processing surface that logical solution mutually infiltrates.The purpose of design is, the solution for being responsible for outflow is rapidly paved with supervisor's table
Face is uniformly coated for the solution in next step by auxiliary tube outflow；It prepares alternatively, uniformly being mixed with the solution of auxiliary tube outflow.
It is characterized in that, application method is.
The first step, the property of solution according to used in experiment clean supervisor and auxiliary tube outer surface with solvent or deionized water；
Open the liquid-supplying system of each pipeline again, with solvent or deionized water clean supervisor auxiliary tube internal channel 0.5h, drying supervisor and
Auxiliary tube is for use.
Second step, installs the feed flow of supervisor and auxiliary tube, first opens the liquid-supplying system of supervisor, closing tip to be responsible for
There are solution drips, and the drippage 2min-5min that remains a constant speed, then open the liquid-supplying system of auxiliary tube, treat the solution cladding of auxiliary tube
The solution of supervisor, and have solution drips in closing tip, remain a constant speed drippage 2min-5min.
Third walks, and setting receives distance as 15cm ~ 30cm, with the kV of voltage 12kV ~ 15, auxiliary tube flow velocity 10mL/h ~
20mL/h is responsible for flow velocity 0.2mL/h ~ 2mL/h, is initially powered up spinning.
4th step after spinning, repeats step 1, and cleaning supervisor and auxiliary tube, drying are for use.
In above-mentioned technical proposal, the opening diameter of the upper perforation outlet of used electrostatic spinning nozzleOnWith lower perforation
The opening diameter of outletUnder, between size relationship beOn=1.5ϕUnder.Purpose of design be in order to ensure supervisor on penetrate through out
Mouth and the solution of lower perforation outlet, under the reasonable caliber and flow velocity of calculating, the solution of upper and lower two layers of outlet can converge rapidly
It closes, uniformly spreads over supervisor surface.The upper perforation outlet and the distance of upper equal pendular ring are h2, h2Size with it is upper perforation export
Opening diameterOnSize, have h2=3ϕOnQuantitative relation.The distance of pendular ring is h in for upper perforation outlet3, h3Ruler
The very little opening diameter with upper perforation outletOnSize, have h3≥2ϕOnQuantitative relation.Lower perforation outlet equal pendular ring in
It is the opening diameter of lower perforation outlet apart from sizeUnder2 times of size.Lower perforation outlet and lower equal pendular ring apart from size >=
The opening diameter of 3 times of lower perforation outletUnderSize.Purpose of design is exported also for the upper perforation for ensureing supervisor under
The solution of outlet is penetrated through, can uniformly spread over supervisor surface, while the solution with being flowed out by auxiliary tube uniformly coats；Alternatively,
It uniformly mixes and prepares with the solution of auxiliary tube outflow.
In above-mentioned technical proposal, the upper equal pendular ring of used electrostatic spinning nozzle the distance between pendular ring H in1≥
5ϕOn, in the distance between pendular ring and lower equal pendular ring H2 ≥5 ϕUnder, lower equal pendular ring to the distance H on closing tip base3 =
2/3（H1+ H2）, close wedge angle angle [alpha]≤60 ° of tip.The selection for defining experiment optimized parameter of distance and angle, purpose
It is another solution for the solution and supervisor's outflow for ensureing auxiliary tube outflow, there is enough flow mixing or cladding.In high pressure
During electrostatic stretch, guarantee has been integrated.The outer diameter b of the supervisor be less than the diameter a, a of three equal pendular rings-
B=1mm-2mm ensure that equal pendular ring plays the uniform purpose of solution level on delay and ring.
In above-mentioned technical proposal, the diameter of the auxiliary tube opening of used electrostatic spinning nozzle0It is exported with lower perforation
Opening diameterUnderIt is identical, i.e.,0 = ϕUnder；The concordant line of tube opening is assisted to the distance h of upper equal pendular ring1 =5 ϕ0.This sets
Meter, reaching the solution of 4 auxiliary tubes can uniformly mix, the flow velocity base of its flow velocity and the solution of supervisor under identical parameters setting
This is identical, simplifies the parameter setting of operation, unified arrange parameter.It is described, auxiliary liquid processing surface and main liquid processing surface
Be both hydrophilic surface or be both hydrophobic surface or one be water-wetted surface, one be hydrophobic surface.
Above-mentioned technical conditions design is that the present invention it is fine can to prepare different composite electrostatic spinnings according to different experiments
Dimension.If the solution of auxiliary tube with supervisor solution be as it is hydrophilic or hydrophobic, can use the present invention.The two solution
Rate of volatilization is similar, can easily form mixing composite fibre, and such as the two solution evaporation rate has difference, can easily be formed
The composite fibre of core-shell structure copolymer layer structure.If the solution of auxiliary tube is hydrophilic, the solution of another supervisor is hydrophobic, the present invention
Also it can use.Alternatively, the solution of supervisor is hydrophilic, the solution of auxiliary tube is hydrophobic, and the present invention can also use.It also being capable of easy shape
The composite fibre of nucleation-shell shape structure.
Compared with existing conventional coaxial electrostatic spinning, the present invention has following the coaxial electrostatic spinning nozzle that the present invention designs
Advantageous effect.
（1）It is integrated because several material solutions have mixed before high-voltage electrostatic spinning, in the setting of operating parameter
Cheng Zhong can be operated according to single needle pipe nozzle, only need to form compound taylor cone at the closing tip of nozzle of the present invention, after
And from the fiber of the stretched same axle housing-core composite construction that stratum nucleare is coated with by shell of Taylor cone.Operating procedure is simple.
（2）Meanwhile, it is capable to realize the mixing electrostatic spinning of the solution of two or more different components, for processing nucleocapsid structure,
Hollow structure, porous structure functional fiber material very big facility is provided.
（3）Invention can be widely applied for the fields such as medicament slow release, organizational project and pharmaceutical carrier.
Description of the drawings
Fig. 1 is the main structure diagram of the present invention.
Fig. 2 is the front view structure size marking schematic diagram of the present invention.
Fig. 3 is the elevational schematic view of the front view of the present invention.
Wherein：1. supervisor；Equal pendular ring under 2.；Equal pendular ring in 3.；Equal pendular ring on 4.；5. auxiliary tube；6. tie point；7. auxiliary liquid
Handle surface；8. outlet is penetrated through on；9. lower perforation outlet；10. main liquid handles surface；11. close tip.
Specific embodiment
Further the present invention is illustrated with reference to the accompanying drawings and examples.
Specific embodiment one
A kind of application method of electrostatic spinning nozzle of the present invention, nozzle are made of supervisor 1 and four auxiliary tubes 5.Supervisor 1
Internal diameter 2mm is responsible for 1 outer diameter b=4mm, equal pendular ring diameter a=6mm.The opening diameter of upper perforation outlet 8On=0.9mm,
The opening diameter of lower perforation outlet 9Under=0.6mm, the diameter that auxiliary tube 5 is open0= 0.6mm.It is upper perforation outlet 8 with it is upper
The distance h of equal pendular ring 42 =2.7mm, upper perforation outlet 8 distance h of pendular ring 3 in3= 2mm.Lower perforation outlet 9 is equal in
Distance=1.2mm of pendular ring 3, lower perforation outlet 9 and distance=1.8mm of lower equal pendular ring 2.Upper equal pendular ring 4 and between pendular ring 3
Distance H1=5.6mm, in the distance between pendular ring 3 and lower equal pendular ring 2 H2=3.6mm, lower equal pendular ring 2 to 11 bottom of closing tip
The distance H on side3=6.1mm closes wedge angle angle [alpha]=60 ° of tip 11.The concordant line that auxiliary tube 5 is open is to upper equal pendular ring 4
Distance h1=3mm.Supervisor 1 surface of the upper equal pendular ring below 4, lower equal pendular ring 2 and in equal 3 surfaces of pendular ring, until closing tip
11 surfaces are processed into hydrophilic and oleophobic surface.1 table of supervisor more than the line concordant with to tube opening is assisted of upper equal 4 surface of pendular ring
Hydrophobic oleophilic oil surface is processed into face.Concrete operation step is as follows.
The first step cleans 1 surface of supervisor with deionized water, 5 outer surface of auxiliary tube is cleaned with chloroform；Each pipe is opened again
The liquid-supplying system on road cleans the internal channel 0.5h of supervisor 1 with deionized water, and the internal channel of auxiliary tube 5 is cleaned with chloroform
0.5h, drying supervisor 1 and auxiliary tube 5 are for use.
Second step, by Poly(D,L-lactide-co-glycolide PLGA（Molecular weight 100,000）Chloroform is dissolved in, is configured to 15%
（w/v）Solution is fitted into the liquid-supplying system of auxiliary tube 5.By polyethyleneimine PEI（Molecular weight 60,000）It is configured to 30%（w/v）It is water-soluble
Liquid is fitted into the liquid-supplying system of supervisor 1.The liquid-supplying system of supervisor 1 is first opened, treating the closing tip 11 of supervisor 1 has solution drips,
And the drippage 2min that remains a constant speed, then the liquid-supplying system of auxiliary tube 5 is opened, treat the solution of the solution cladding supervisor 1 of auxiliary tube 5, and
There are solution drips in closing tip 11, remain a constant speed drippage 5min.
Third walks, and setting receives distance as 15cm, with voltage 14kV, 5 flow velocity 10mL/h of auxiliary tube, is responsible for 1 flow velocity
0.2mL/h is initially powered up spinning.
4th step after spinning, repeats step 1, and cleaning supervisor 1 and auxiliary tube 5, drying are for use.
Specific embodiment two
A kind of application method of electrostatic spinning nozzle of the present invention, nozzle are made of supervisor 1 and four auxiliary tubes 5.Supervisor 1
Internal diameter 0.85mm is responsible for 1 outer diameter b=3mm, equal pendular ring diameter a=4mm.The opening diameter of upper perforation outlet 8On=
0.45mm, the opening diameter of lower perforation outlet 9Under=0.3mm, the diameter that auxiliary tube 5 is open0= 0.3mm.On penetrate through out
The distance h of mouth 8 and upper equal pendular ring 42 =1.35mm, upper perforation outlet 8 distance h of pendular ring 3 in3=2mm.Lower perforation outlet 9
Distance=2mm of equal pendular ring 3 in, lower perforation outlet 9 and distance=2mm of lower equal pendular ring 2.Upper equal pendular ring 4 in pendular ring 3 it
Between distance H1=3.8mm, in the distance between pendular ring 3 and lower equal pendular ring 2 H2 =4.3mm, lower equal pendular ring 2 to closing tip 11
The distance H on base3=5.4mm closes wedge angle angle [alpha]=15 ° of tip 11.The concordant line that auxiliary tube 5 is open is to upper equal pendular ring 4
Distance h1=1.5mm.Supervisor 1 surface of the upper equal pendular ring below 4, lower equal pendular ring 2 and in equal 3 surfaces of pendular ring, until closing
11 surface of tip, is processed into hydrophobic oleophilic oil surface.Supervisor more than the line concordant with to tube opening is assisted of upper equal 4 surface of pendular ring
Hydrophilic and oleophobic surface is processed on 1 surface.Concrete operation step is as follows.
The first step cleans 5 surface of auxiliary tube with deionized water, and 1 outer surface of supervisor is cleaned with chloroform；Each pipe is opened again
The liquid-supplying system on road cleans the internal channel 0.5h of auxiliary tube 5 with deionized water, and the internal channel of supervisor 1 is cleaned with chloroform
0.5h, drying supervisor 1 and auxiliary tube 5 are for use.
Second step, by Poly(D,L-lactide-co-glycolide PLGA（Molecular weight 100,000）Chloroform is dissolved in, is configured to 15%
（w/v）Solution is fitted into the liquid-supplying system of supervisor 1.By polyethyleneimine PEI（Molecular weight 60,000）It is configured to 30%（w/v）It is water-soluble
Liquid is fitted into the liquid-supplying system of auxiliary tube 5.The liquid-supplying system of auxiliary tube 5 is first opened, treats the solution of auxiliary tube 5 in closing tip
11 have solution drips, and remain a constant speed drippage 2min.The liquid-supplying system of supervisor 1 is opened again, treats that the solution of supervisor 1 is covered by auxiliary
In the solution of pipe 5, and after closing tip 11 has solution drips, remain a constant speed drippage 5min.
Third walks, and setting receives distance as 20cm, with voltage 15kV, 5 flow velocity 11mL/h of auxiliary tube, is responsible for 1 flow velocity 1mL/
H is initially powered up spinning.
4th step after spinning, repeats step 1, and cleaning supervisor 1 and auxiliary tube 5, drying are for use.
Claims (4)
1. a kind of application method of electrostatic spinning nozzle, the electrostatic spinning nozzle used is by being responsible for（1）With four auxiliary tubes（5）Group
Into；Supervisor（1）End by be in sharp cone distal closing tip（11）Closing closes tip in distance（11）Base H3The ground of size
Side, there are one lower equal pendular rings for processing（2）, the equal pendular ring under distance（2）H2The place of size, processing equal pendular ring there are one in（3）,
The equal pendular ring in distance（3）H1The place of size, there are one upper equal pendular rings for processing（4）；Apart from upper equal pendular ring（4）h1Size
Place, processing are equipped with that 4 inside/outside diameter sizes are consistent, the concordant auxiliary tube in an aperture lines of cross arrangement, opening
（5）；Auxiliary tube（5）Pass through tie point（6）With supervisor（1）It is connected；In lower equal pendular ring（2）The equal pendular ring in（3）Between be machined with
One vertical supervisor（1）It is axial, lateral direction penetrating supervisor（1）The openings of internal diameter form and outlet are penetrated through under 2（9）；In upper equal liquid
Ring（4）The equal pendular ring in（3）Between processing there are one vertical supervisors（1）It is axial, lateral direction penetrating supervisor（1）The openings of internal diameter,
Form 2 upper perforation outlets（8）；2 upper perforation outlets（8）With 2 under penetrate through outlet（9）Totally 4 mutual cruciform symmetries in outlet
Arrangement, with 4 auxiliary tubes（5）It corresponds respectively on a vertical line；In upper equal pendular ring（4）Surface and to auxiliary tube（5）
The supervisor being open more than concordant line（1）Surface is processed into the auxiliary liquid mutually infiltrated with the solution to circulate in auxiliary tube and handles surface
（7）, in upper equal pendular ring（4）Following supervisor（1）Surface, lower equal pendular ring（2）The equal pendular ring in（3）Surface, until closing point
Head（11）Surface is machined with the main liquid mutually infiltrated with being responsible for the interior solution to circulate and handles surface（10）；It is characterized in that, it uses
Method is：
The first step, the property of solution according to used in experiment clean supervisor with solvent or deionized water（1）And auxiliary tube（5）Appearance
Face；The liquid-supplying system of each pipeline is opened again, and supervisor is cleaned with solvent or deionized water（1）Auxiliary tube（5）Internal channel 0.5h, dry
Dry supervisor（1）And auxiliary tube（5）For use；
Second step installs supervisor（1）And auxiliary tube（5）Liquid-supplying system, first open supervisor（1）Liquid-supplying system, wait to be responsible for
（1）Closing tip（11）There are solution drips, and the drippage 2min-5min that remains a constant speed, then open auxiliary tube（5）Feed flow system
System, treats auxiliary tube（5）Solution cladding supervisor（1）Solution, and closing tip（11）There are solution drips, remain a constant speed drippage
2min-5min；Alternatively, opening sequence overturns；
Third walks, and setting receives distance as 15cm ~ 30cm, with voltage 12kV ~ 15kV, auxiliary tube（5）Flow velocity 10mL/h ~ 20mL/
H, supervisor（1）Flow velocity 0.2mL/h ~ 2mL/h, is initially powered up spinning；
4th step after spinning, repeats step 1, cleaning supervisor（1）And auxiliary tube（5）, drying is for use.
2. a kind of application method of electrostatic spinning nozzle according to claim 1, it is characterised in that：Used Static Spinning
The upper perforation outlet of silk nozzle（8）Opening diameterOnIt is exported with lower perforation（9）Opening diameterUnder, between size relationship be
ϕOn= 1.5ϕUnder；The upper perforation outlet（8）With upper equal pendular ring（4）Distance be h2, h2Size with it is upper perforation export（8）
Opening diameterOnSize, have h2=3ϕOnQuantitative relation；Upper perforation outlet（8）The equal pendular ring in（3）Distance be h3,
h3Size with it is upper perforation export（8）Opening diameterOnSize, have h3≥2ϕOnQuantitative relation；Lower perforation outlet（9）
The equal pendular ring in（3）Apart from size, be lower perforation outlet（9）Opening diameterUnder2 times of size；Lower perforation outlet（9）
With lower equal pendular ring（2）Apart from size >=3 times lower perforation outlet（9）Opening diameterUnderSize.
3. a kind of application method of electrostatic spinning nozzle according to claim 1, it is characterised in that：Used Static Spinning
The upper equal pendular ring of silk nozzle（4）The equal pendular ring in（3）The distance between H1 ≥5 ϕOn, in equal pendular ring（3）With lower equal pendular ring（2）
The distance between H2 ≥5 ϕUnder, lower equal pendular ring（2）To closing tip（11）The distance H on base3=2/3（H1+ H2）, closing point
Head（11）Wedge angle angle [alpha]≤60 °；The supervisor（1）Outer diameter b be less than the diameter a, a- of three equal pendular rings
b = 1mm-2mm。
4. a kind of application method of electrostatic spinning nozzle according to claim 1, it is characterised in that：Used Static Spinning
The auxiliary tube of silk nozzle（5）The diameter of opening0It is exported with lower perforation（9）Opening diameterUnderIt is identical, i.e.,0 = ϕUnder；It is auxiliary
Help pipe（5）The concordant line of opening is to upper equal pendular ring（4）Distance h1 =5 ϕ0；The auxiliary liquid processing surface（7）With the processing of main liquid
Surface（10）It is both hydrophilic surface or is both hydrophobic surface or one is water-wetted surface, one is hydrophobic surface.
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| CN201611066613.0A CN106319650B (en) | 2016-11-28 | 2016-11-28 | A kind of application method of electrostatic spinning nozzle |
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| CN201611066613.0A CN106319650B (en) | 2016-11-28 | 2016-11-28 | A kind of application method of electrostatic spinning nozzle |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010090868A2 (en) * | 2009-01-21 | 2010-08-12 | The Florida International University Board Of Trustees | Needle-in-needle electrospinning spinneret |
| CN202809021U (en) * | 2012-05-30 | 2013-03-20 | 湖南博弈飞装备新材料研究所 | Electrostatic spinning device |
| CN204491055U (en) * | 2015-03-06 | 2015-07-22 | 北京化工大学 | A kind of spout cyclone type is prepared nanometer and to be twisted thread electrostatic spinning nozzle device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7309498B2 (en) * | 2001-10-10 | 2007-12-18 | Belenkaya Bronislava G | Biodegradable absorbents and methods of preparation |
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2016
- 2016-11-28 CN CN201611066613.0A patent/CN106319650B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010090868A2 (en) * | 2009-01-21 | 2010-08-12 | The Florida International University Board Of Trustees | Needle-in-needle electrospinning spinneret |
| CN202809021U (en) * | 2012-05-30 | 2013-03-20 | 湖南博弈飞装备新材料研究所 | Electrostatic spinning device |
| CN204491055U (en) * | 2015-03-06 | 2015-07-22 | 北京化工大学 | A kind of spout cyclone type is prepared nanometer and to be twisted thread electrostatic spinning nozzle device |
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| CN106319650A (en) | 2017-01-11 |
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