CN106757417A - A kind of same core different sheath microfluidic control shower nozzle, device for spinning and spinning process arranged side by side - Google Patents
A kind of same core different sheath microfluidic control shower nozzle, device for spinning and spinning process arranged side by side Download PDFInfo
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- CN106757417A CN106757417A CN201611122996.9A CN201611122996A CN106757417A CN 106757417 A CN106757417 A CN 106757417A CN 201611122996 A CN201611122996 A CN 201611122996A CN 106757417 A CN106757417 A CN 106757417A
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- shower nozzle
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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
-
- 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
- D01D5/0015—Electro-spinning characterised by the initial state of the material
- D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/52—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated carboxylic acids or unsaturated esters
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention provides a kind of same core different sheath microfluidic control shower nozzle arranged side by side, including total capillary, the first tortuous capillary and second tortuous capillary；The section of the port of export of total capillary is ellipse；First tortuous capillary is arranged in total capillary, the port of export of the first tortuous capillary stretches out the port of export of total capillary, the kink of the first tortuous capillary is passed from the side of total capillary, and lateral wall of first tortuous capillary in total capillary is close to the madial wall of total capillary；During the second straight line section of the second tortuous capillary is arranged on total capillary inside and penetrates the straightway of the first capillary, stretched out from the port of export of the first capillary, the lateral wall of the second tortuous capillary is close to the madial wall of close total capillary center section of the first capillary.A kind of high-voltage electrostatic spinning device containing above-mentioned shower nozzle is additionally provided, the nanofiber with multistage arrangement architecture feature can be effectively prepared with single step using said apparatus.
Description
Technical field
The invention belongs to field of nano material preparation, more particularly to a kind of same core different sheath microfluidic control shower nozzle arranged side by side,
A kind of multi-fluid electric spinning equipment with same core different sheath microfluidic control shower nozzle arranged side by side, and carry out electrospinning single step system using the device
The standby method with core different sheath structure nano fiber arranged side by side.
Background technology
High-voltage electrostatic spinning technology（Abbreviation electrospinning）It is a kind of nano-fabrication technique of (top-down) from top to bottom, leads to
Cross extra electric field power to overcome the surface tension of liquid and viscoelastic power of shower nozzle tip drop and form jet, in electrostatic repulsion, coulomb
Under power and surface tension collective effect, the liquid jet after being atomized by high frequency flexural, drawing, division, the quilt within a few tens of milliseconds
Drawing-off thousands of times, nano-scale fiber is obtained through solvent volatilization or melt cooling in receiving terminal.The technical matters process is simple, manipulation
Convenient, selection material ranges are extensive, controllability is strong and can prepare the nanometer with microstructure characteristic by sprinkler design
A kind of fiber, it is considered to be the most possible method for realizing continuous nano-fibre industrialized production, function is prepared using the technology
There is nanofiber good prospect to be expected.
The sharpest edges of electrospinning can be by the design and conversion of spinning header structure, and corresponding knot is effectively prepared in single step
The polymer micro-nanometer fiber of structure feature, this be other various " bottom-up " chemical synthesis process it is impossible.Most
Commonly using coaxial capillary metal sleeve for spinneret prepares core sheath structure nanofiber (Moghe AK and Gupta
BS. Co-axial electrospinning for nanofiber structures: Preparation and
applications. Polym. Rev. 2008;48:Prepare 353-377.) and using left-right relation structure spinneret and receive side by side
Rice fiber (Walther A and M ü ller AHE. Janus particles: synthesis, self-assembly,
physical properties, and applications. Chem. Rev. 2013;113:5194-5261.).But base
In this concept, also more nanostructured products with labyrinth feature have to be developed.
Development of Nano-technology merely reduces the micro-or nano size of product to obtain the concept of relevant nanometer effectiveness to today
Gradually deflect away from main flow.More notices all concentrate on nano-device, complicated micro nano structure and relevant nanometer layer at present
In secondary structure-activity relationship.Structural integrity, the micro nanometer fiber with labyrinth feature how are effectively prepared, and is led to
The architectural feature for crossing fiber goes to design the study hotspot and micro manufacturing field and new micro- that their function is both nanosecond science and technology
The key content solved needed for nanometer product production.
The present invention is on the basis of test of many times, it then follows the behavioural characteristic of fluid and basic natural rule under high voltage electric field
Rule, finds out a kind of same core different sheath microfluidic control shower nozzle side by side, using shower nozzle assembling electric spinning equipment, implements electrospinning processes,
The same core different sheath nanofiber arranged side by side of structural integrity, size uniformity can be effectively prepared with single step, is new structure nanometer work(
Design, preparation and the large-scale production and application of energy material provide possible.
The content of the invention
For above-mentioned technical problem of the prior art, the invention provides a kind of different sheath microfluidic control spray side by side of same core
Head, device for spinning and spinning process, described this same core different sheath microfluidic control shower nozzle, device for spinning and spinning process arranged side by side
Solve to prepare in the prior art the technical problem of the same core complex process of different sheath structure nano fiber side by side.
The invention provides a kind of same core different sheath microfluidic control shower nozzle arranged side by side, including total capillary, first bending
Capillary and the second tortuous capillary, the section at described total capillary outlet are ellipse；The first described bending capillary
Pipe includes a first straight line section and the first kink, and described first straight line section is arranged in described total capillary and abuts
The madial wall of total capillary, the port of export of the first tortuous capillary stretches out the port of export of described total capillary, the first curved hairs
First kink of tubule is passed from a side of total capillary；The second described tortuous capillary includes a second straight line
Section and the second kink, the second straight line section of described the second tortuous capillary are arranged on total capillary inside and penetrate first mao
In the straightway of tubule, stretched out from the port of export of the first capillary, the lateral wall of the second described tortuous capillary is close to first
The madial wall of close total capillary center section of capillary, the second kink of described the second tortuous capillary is from total capillary
Another side of pipe passes.
Further, the junction of the straightway of the second straight line section and the first capillary of the second described tortuous capillary
Sealing is set.
Further, the port of export of the first described tortuous capillary stretches out the outlet 0.2mm of described total capillary, institute
The port of export of the second tortuous capillary stated stretches out the outlet 0.2mm of the first described tortuous capillary.
Further, the length of described total capillary is 70 mm, and the entrance point of described total capillary is provided with one
Interface, is provided with spiral reinforcement on the lateral wall of described interface, the length of the first described tortuous capillary is 60
mm；The length of the second described tortuous capillary is 65 mm；It is described total capillary interface, the first tortuous capillary, second curved
Bent capillary uses the gluing sealing of epoxy resin with total capillary junction.
Further, on the lateral wall of the tail end of the kink of the first described tortuous capillary and the second tortuous capillary
It is provided with the projection of annular.
Present invention also offers a kind of high-voltage electrostatic spinning device, including the first syringe pump, the first syringe, the second injection
Pump, the second syringe, the 3rd syringe pump, the 3rd syringe, fiber receiver board, high pressure generator and above-mentioned same core different sheath arranged side by side
Microfluidic control shower nozzle, described the first syringe is arranged in the first described syringe pump, the first described syringe and institute
The microfluidic control shower nozzle connection stated, the second described syringe is arranged in the second described syringe pump, the second described note
Emitter connects described microfluidic control shower nozzle by first silica gel hose, and the 3rd described syringe is arranged on described
In 3rd syringe pump, the 3rd described syringe connects described microfluidic control shower nozzle, institute by second silica gel hose
The high pressure generator and described microfluidic control shower nozzle stated are connected by wire, and the lower end of described microfluidic control shower nozzle sets
It is equipped with fiber receiver board.
Method present invention also offers being prepared using above-mentioned electric spinning equipment with core different sheath structure nano fiber arranged side by side,
The spinning liquid in the middle of the first arrangement is added in first syringe, second spinning solution on one side is added in the second syringe
The spinning liquid of the third another side is added in body, the 3rd syringe, by high voltage electrostatic field, you can single step is effectively made
It is standby go out same core different sheath structure nano fiber side by side.
Further, above-mentioned preparation comprises the following steps with the method for core different sheath structure nano fiber arranged side by side：
1) the step of preparation spinning solution, the first spinning solution is the ethanol solution that Eudragit E100 and phosphotungstic acid are constituted,
In described ethanol solution, the mass percent concentration of Eudragit E100 is 13%, the mass percent concentration of phosphotungstic acid
It is 1%；Second spinning solution is the ethanol solution that Eudragit L100 and phosphotungstic acid are constituted, in described ethanol solution,
The mass percent concentration of Eudragit L100 is 13%, and the mass percent concentration of phosphotungstic acid is 0.5%；3rd spinning solution is
Mass percent concentration is 13% Eudragit L100 ethanol solutions；
2) by step 1）First, second, and third spinning solution of gained is added separately in corresponding syringe, is then turned on first
Syringe pump, the second syringe pump and the 3rd syringe pump；
3) the sheath flow quantity of the first syringe is controlled for 0.8 ml/h, and the core flow quantity of the syringe of control second and the 3rd is respectively
1.0 and 0.5 ml/h opens high pressure generator, and adjustment fiberboard receives distance, and voltage is upgraded into 14kV carries out electrospinning, i.e., much
Level parallel construction nanofiber.
Principle of the invention is：With core, the specific structural features of different sheath microfluidic control shower nozzle are to prepare corresponding construction side by side
Nano material provides a macroscopical masterplate, by the interaction of high-voltage electrostatic field and fluid, in several millis in high-pressure electrostatic off field
Liquid spinning dope is drawn into the solid nano fiber of clear in structure within second.On the other hand, spray outlet is with core different sheath arranged side by side
Fluid constitutes a round complete curve closing structure under high voltage electric field, and on the one hand this closing structure is conducive to high voltage electric field
To three kinds of uniform synchro-draws of fluid, there are enough contacts area between three kinds of fluids on the other hand keeping arrangement, effectively
Prevent " same sex is repelled each other " between fluid and the separation that causes.Above-mentioned principle collective effect, it is ensured that high-pressure electrostatic off field, from grand
See accurate " duplication " that masterplate interconnects arrangement architecture feature nanofiber to microcosmic three Room.
The present invention is compared with prior art, and its technological progress is significant.Same core of the invention different sheath high-pressure electrostatic arranged side by side
Spinning process application is simple and convenient to operate, easily controllable, and it is different side by side same core can effectively to be prepared with single step under high voltage electric field
Sheath structure nano fiber, and extensive amplification production can be carried out by increasing spinneret quantity.
Brief description of the drawings
Fig. 1 is a kind of structural representation of same core of the invention different sheath microfluid electric injector side by side, the total capillaries of 1-, 2- the
One tortuous capillary, the tortuous capillaries of 3- second, 4- joints, 5- bulge loops, 6- epoxy resin.
Fig. 2 is a kind of outlet shooting figure of same core of the invention different sheath microfluid electric injector arranged side by side.
Fig. 3 is the structural representation of many jet electric spinning equipments containing same core of the invention different sheath microfluid electric injector arranged side by side
Figure, 7- high pressure generators, the syringe pumps of 8- first, the syringe pumps of 9- second, the syringe pumps of 10- the 3rd, 11- are with core different sheath miniflow arranged side by side
Body electric injector, 12- fibers receiver board, the syringes of 13- first, the syringes of 14- second, the syringes of 15- the 3rd, 16- first are high-elastic
Property silica gel hose；17- the second high resiliency silica gel hoses.
Fig. 4 is Application Example gained with core different sheath structure nano fiber SEM electron microscope arranged side by side；
Fig. 5 is Application Example gained with core different sheath structure nano fiber transmission electron microscope electron microscope arranged side by side.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content for having read instruction of the present invention, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiment 1
As shown in figure 1, the invention provides a kind of same core different sheath microfluidic control shower nozzle side by side, including total capillary 1, the
One tortuous capillary 2 and the second tortuous capillary 3；The section of the port of export of described total capillary 1 is ellipse；Described
One tortuous capillary 2 includes a first straight line section and the first kink, and described first straight line section is arranged on described total hair
In tubule 1 and against the madial wall of total capillary 1, the port of export of the first tortuous capillary 2 stretches out the port of export of total capillary 1,
First kink of the first tortuous capillary 2 is passed from a side of total capillary 1；The second described tortuous capillary 3 is wrapped
A second straight line section and the second kink are included, the second straight line section of the second described tortuous capillary 3 is arranged on total capillary 1
In straightway that is internal and penetrating the first capillary 2, the port of export, the second described bending are extended to from the first capillary inside 2
The lateral wall of capillary 3 is close to the madial wall by the center section of total capillary 1 of the first capillary 1, the second described curved hairs
Second kink of tubule 3 is passed from another side of total capillary 1.
Further, the connection of the straightway of the second straight line section and the first capillary 2 of the second described tortuous capillary 3
Place's sealing is set.
Further, the port of export of the first described tortuous capillary 2 stretches out the port of export 0.2 of described total capillary 1
Mm, the port of export of the second described tortuous capillary 3 stretches out the mm of the port of export 0.2 of the first described tortuous capillary 1.
Further, the length of described total capillary 1 is 70 mm, and the entrance point of described total capillary 1 is provided with one
Individual interface 4, is provided with spiral reinforcement on the lateral wall of described interface 4, the length of described the first tortuous capillary 2
It is 60 mm；The length of the second described tortuous capillary 3 is 65 mm；Described total capillary 1, the and of the first tortuous capillary 2
Second tortuous capillary 3, and the connection of interface 4 uses the adhesive sealing of epoxy resin 6.
Further, on the lateral wall of the kink tail end of the first described tortuous capillary 2 and the second tortuous capillary 3
Raised the 5 of annular are provided with, for connecting high resiliency silica gel hose.
Embodiment 2
A kind of high-voltage electrostatic spinning device of application shower nozzle assembling, its composition schematic diagram as shown in figure 3,7- high pressure generators,
Different sheath microfluid electric injector, 12- fibers connect side by side with core for the syringe pumps of 8- first, the syringe pumps of 9- second, the syringe pumps of 10- the 3rd, 11-
Receive plate, the syringes of 13- first, the syringes of 14- second, the syringes of 15- the 3rd, 16- the first high resiliency silica gel hoses；17- second
High resiliency silica gel hose.
Implement electrospinning to three fluid streams using the electric spinning equipment with same core different sheath microfluidic control shower nozzle arranged side by side to prepare, its
Comprise the following steps that：First syringe 13 is arranged in the first syringe pump 8, and the first spinning liquid is added in syringe 13, is noted
Emitter 13 is directly connected to the interface end of same core different sheath microfluidic control shower nozzle 11 arranged side by side.Second syringe 14 is arranged on the second injection
In pump 9, the second spinning solution is added in syringe 9, it is arranged side by side that spinning liquid imports same core by the first high resiliency silica gel hose 16
In the tortuous capillary 2 of different sheath microfluidic control shower nozzle 11.3rd syringe 15 is arranged in the 3rd syringe pump 10, in syringe
The 3rd spinning liquid, spinning liquid is added to import the different sheath microfluid control side by side of same core by the second high resiliency silica gel hose 17 in 15
In the tortuous capillary 3 of shower nozzle processed 11.High pressure generator 7 and with core side by side different sheath microfluidic control shower nozzle 11 by wire it is direct
Connection, a fiber receiver board 12 is provided with the lower end of shower nozzle 11, and it is 15cm to receive distance；It is aluminium foil parcel to receive flat board 12
Hardboard, this receives plate earthing.
Application Example 1
High-voltage electrostatic spinning device using a kind of application shower nozzle assembling described in embodiment 2 implements electrospinning, to prepare same core
Different sheath structure nano fiber arranged side by side, step is as follows：
（1）, spinning solution preparation
First spinning solution, mass percent concentration is the ethanol solution of 13%Eudragit L100 and 1% phosphotungstic acid, its preparation side
Method is as follows：Will the phosphotungstic acid of Eudragit E100 and 1 g of 13 g be added in the ethanol of 76 g, stir and obtain final product matter
Amount percent concentration is 13% Eudragit E100 and the ethanol solution of 1% phosphotungstic acid；
Second spinning solution, mass percent concentration is the ethanol solution of 13%Eudragit L100 and 0.5% phosphotungstic acid, its preparation
Method is as follows：Will the phosphotungstic acid of Eudragit E100 and 0.5 g of 13 g be added in the ethanol of 76.5 g, stir
Obtain final product the ethanol solution of Eudragit E100 that mass percent concentration is 13% and 0.5% phosphotungstic acid；
3rd spinning solution, mass percent concentration is 13% Eudragit L100 ethanol solutions, and its compound method is as follows：Will
The Eudragit E100 of 13 g are added in the ethanol of 77 g, and it is 13% to stir and obtain final product mass percent concentration
The ethanol solution of Eudragit E100；
1) by step（1）First, second, and third spinning solution of gained is added separately in corresponding syringe, is then turned on first
Syringe pump, the second syringe pump and the 3rd syringe pump；
2) the sheath flow quantity of the first syringe is controlled for 0.8 ml/h, and the core flow quantity of the syringe of control second and the 3rd is respectively
1.0 and 0.5 ml/h opens high pressure generator, and it is 15 cm that adjustment fiberboard receives distance, and voltage is upgraded into 14kV carries out electrospinning,
Obtain final product multistage parallel construction nanofiber.
Application Example 2
After surface metal spraying being carried out using field scan Electronic Speculum to the same core different sheath structure nano fiber arranged side by side prepared by Application Example 1
Observation, as a result as shown in Figure 4.Prepared same core side by side collect uniformly and good linear shape be presented by different sheath structure nano fiber
State, a diameter of 710 ± 110 nm.Using high resolution transmission electron microscopy to prepared same core different sheath structure nano arranged side by side
Fiber is observed, as a result as shown in figure 5, the left, center, right of nanofiber is with core different sheath structure clear in structure arranged side by side, due to overlapping
Relation, core and two sheath portions arranged side by side are constituted by two gray portions, and core has maximum ash with the lap of sheath portion 1
Degree, and independent sheath portion 2 has minimum gray scale.
The above is only the citing of embodiments of the present invention, it is noted that for those skilled in the art
For, on the premise of the technology of the present invention principle is not departed from, some improvement can also be made, these improvement also should be regarded as the present invention
Protection domain.
Claims (8)
1. a kind of same core side by side different sheath microfluidic control shower nozzle, it is characterised in that：Including a total capillary, the first bending capillary
Pipe and the second tortuous capillary, the section at described total capillary outlet are ellipse；The first described tortuous capillary bag
A first straight line section and the first kink are included, described first straight line section is arranged in described total capillary and against total hair
The madial wall of tubule, the port of export of the first tortuous capillary stretches out the port of export of described total capillary, the first tortuous capillary
The first kink passed from a side of total capillary；The second described tortuous capillary include second straight line section and
Second kink, the second straight line section of the second described tortuous capillary is arranged on total capillary inside and penetrates the first capillary
Straightway in, stretched out from the port of export of the first capillary, the lateral wall of the second described tortuous capillary is close to the first capillary
The madial wall of close total capillary center section of pipe, the second kink of described the second tortuous capillary is from total capillary
Another side passes.
2. a kind of same core according to claim 1 side by side different sheath microfluidic control shower nozzle, it is characterised in that：Described second
The junction sealing of the straightway of the second straight line section and the first capillary of tortuous capillary is set.
3. a kind of same core according to claim 1 side by side different sheath microfluidic control shower nozzle, it is characterised in that：Described first
The port of export of tortuous capillary stretches out the outlet 0.2mm of described total capillary, the port of export of described the second tortuous capillary
Stretch out the outlet 0.2mm of the first described tortuous capillary.
4. a kind of same core according to claim 1 side by side different sheath microfluidic control shower nozzle, it is characterised in that：Described total hair
The length of tubule is 70 mm, and the entrance point of described total capillary is provided with an interface, is set on the lateral wall of described interface
Spiral reinforcement is equipped with, the length of the first described tortuous capillary is 60 mm；The length of the second described tortuous capillary
It is 65 mm to spend；Described total capillary interface, the first tortuous capillary, the second tortuous capillary are adopted with total capillary junction
With the gluing sealing of epoxy resin.
5. a kind of same core according to claim 1 side by side different sheath microfluidic control shower nozzle, it is characterised in that：Described first
The projection of annular is provided with the lateral wall of the tail end of the kink of tortuous capillary and the second tortuous capillary.
6. a kind of high-voltage electrostatic spinning device, it is characterised in that：Including the first syringe pump, the first syringe, the second syringe pump,
Same core described in two syringes, the 3rd syringe pump, the 3rd syringe, fiber receiver board, high pressure generator and claim 1 is arranged side by side
Different sheath microfluidic control shower nozzle, the first described syringe is arranged in the first described syringe pump, the first described syringe
Connected with described microfluidic control shower nozzle, the second described syringe is arranged in the second described syringe pump, described the
Two syringes connect described microfluidic control shower nozzle by first silica gel hose, and the 3rd described syringe is arranged on institute
In the 3rd syringe pump stated, the 3rd described syringe connects described microfluidic control and sprays by second silica gel hose
Head, described high pressure generator and described microfluidic control shower nozzle are connected by wire, described microfluidic control shower nozzle
Lower end is provided with fiber receiver board.
7. the method with core different sheath structure nano fiber arranged side by side, its feature are prepared using electric spinning equipment as claimed in claim 6
It is：The spinning liquid in the middle of the first arrangement is added in the first syringe, second one side of addition in the second syringe
The spinning liquid of the third another side is added in spinning liquid, the 3rd syringe, by high voltage electrostatic field, you can single step has
Prepare to effect same core different sheath structure nano fiber side by side.
8. the method with core different sheath structure nano fiber arranged side by side is prepared as claimed in claim 7, it is characterised in that including as follows
Step：
1）The step of one preparation spinning solution, the first spinning solution is the ethanol solution that Eudragit E100 and phosphotungstic acid are constituted,
In described ethanol solution, the mass percent concentration of Eudragit E100 is 13%, the mass percent concentration of phosphotungstic acid
It is 1%；Second spinning solution is the ethanol solution that Eudragit L100 and phosphotungstic acid are constituted, in described ethanol solution,
The mass percent concentration of Eudragit L100 is 13%, and the mass percent concentration of phosphotungstic acid is 0.5%；3rd spinning solution is
Mass percent concentration is 13% Eudragit L100 ethanol solutions；
2）By step 1）First, second, and third spinning solution of gained is added separately in corresponding syringe, is then turned on first
Syringe pump, the second syringe pump and the 3rd syringe pump；
3）The sheath flow quantity of the first syringe is controlled for 0.8 ml/h, the core flow quantity of the syringe of control second and the 3rd is respectively
1.0 and 0.5 ml/h opens high pressure generator, and adjustment fiberboard receives distance, and voltage is upgraded into 14kV carries out electrospinning, i.e., much
Level parallel construction nanofiber.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611122996.9A CN106757417B (en) | 2016-12-08 | 2016-12-08 | A kind of same core different sheath microfluidic control spray head, device for spinning and spinning process side by side |
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|---|---|---|---|
| CN201611122996.9A CN106757417B (en) | 2016-12-08 | 2016-12-08 | A kind of same core different sheath microfluidic control spray head, device for spinning and spinning process side by side |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385694A (en) * | 2018-09-21 | 2019-02-26 | 华中科技大学 | A kind of screw type graphene fiber and the preparation method and application thereof |
| CN111113838A (en) * | 2020-01-08 | 2020-05-08 | 广东工业大学 | Processing method and device of shape-controllable 3D spiral micro antenna |
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| CN105926055A (en) * | 2016-06-23 | 2016-09-07 | 浙江大学 | Electrostatic spinning method capable of realizing in-situ control of micro/nano fiber surface shape |
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| CN105926055A (en) * | 2016-06-23 | 2016-09-07 | 浙江大学 | Electrostatic spinning method capable of realizing in-situ control of micro/nano fiber surface shape |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385694A (en) * | 2018-09-21 | 2019-02-26 | 华中科技大学 | A kind of screw type graphene fiber and the preparation method and application thereof |
| CN109385694B (en) * | 2018-09-21 | 2020-02-14 | 华中科技大学 | Spiral graphene fiber and preparation method and application thereof |
| CN111113838A (en) * | 2020-01-08 | 2020-05-08 | 广东工业大学 | Processing method and device of shape-controllable 3D spiral micro antenna |
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