CN109371479A - A kind of solution melt cospinning multi-nozzle electrospinning integrating device - Google Patents
A kind of solution melt cospinning multi-nozzle electrospinning integrating device Download PDFInfo
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- CN109371479A CN109371479A CN201811570020.7A CN201811570020A CN109371479A CN 109371479 A CN109371479 A CN 109371479A CN 201811570020 A CN201811570020 A CN 201811570020A CN 109371479 A CN109371479 A CN 109371479A
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- 238000001523 electrospinning Methods 0.000 title claims abstract description 25
- 239000000835 fiber Substances 0.000 claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000003860 storage Methods 0.000 claims abstract description 22
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 239000012528 membrane Substances 0.000 claims abstract description 9
- 238000009987 spinning Methods 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 11
- 230000006698 induction Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000002121 nanofiber Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 239000010445 mica Substances 0.000 claims description 3
- 229910052618 mica group Inorganic materials 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 claims description 2
- 238000010041 electrostatic spinning Methods 0.000 abstract description 25
- 230000008021 deposition Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 87
- 229920000642 polymer Polymers 0.000 description 9
- 239000007921 spray Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 8
- 238000005507 spraying Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 230000007246 mechanism Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000010062 adhesion mechanism Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- D01D5/0092—Electro-spinning characterised by the electro-spinning apparatus characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention belongs to electrospinning device technical fields, it is related to a kind of solution melt cospinning multi-nozzle electrospinning integrating device, main structure includes melt sleeve, through-hole, melt inlet, melt outlet, reference cone, first annular runner, holding screw, grounding electrode, heating coil, air-flow inner sleeve, air-flow outer sleeve, screw, air flow inlet, second annular channel, air stream outlet, solution needle holder, annular liquid storage chamber, solution inlet, syringe needle and electrostatic generator, melt electrostatic spinning and solution electrostatic spinning are combined, disposably preparing both has high porosity, high-specific surface area, there is high-intensitive composite cellulosic membrane again, relieve the limitation to reception device, it can be realized the fiber deposition of arbitrary surfaces, and according to actual needs, adjust the quantity of solution and the spun fiber of melt, it is fine to control thickness in composite cellulosic membrane Dimensional ratio, to be suitable for different application；Its structure is simple, easy to operate, and scientific in principle is reliable, and use environment is friendly.
Description
Technical field:
The invention belongs to electrospinning device technical fields, and in particular to a kind of solution melt cospinning multi-nozzle electrospinning
Integrating device, by solution electrostatic spinning in conjunction with solution electrostatic spinning, with the composite cellulosic membrane that processability is excellent.
Background technique:
Electrostatic spinning is a kind of special fiber fabrication process, and polymer solution or melt carry out injection spinning in strong electrical field
Silk, made fiber have the characteristics that high-specific surface area and high porosity, are widely used in ultrafiltration, biological medicine, organizational project etc.
Field；According to the difference of spinning medium, electrostatic spinning is divided into solution electrostatic spinning and melt electrostatic spinning.
The made fibre diameter of solution electrostatic spinning is thinner, and intensity is lower, and spinning syringe needle is mostly used to connect high-field electrode, receives dress
The mode of connection of ground connection is set, for example, one kind disclosed in Chinese patent 201710607631.3 has spinning solution temperature control part
The electrospinning device of part, including spinning solution temperature control unit, the spinning solution temperature control unit include that spinning is molten
Sap cavity body and spinning solution temperature control system, the spinning solution cavity is cylindrical metal cavity, in the metal cavity
Portion is fixed on suspension arm by fixed screw and is suspended on inside electrospinning device, and it is molten that spinning is contained in the metal cavity
4~8 resistance heating rods and 1 electroheat pair are uniformly installed, resistance heating rod and thermocouple and spinning solution in the cavity wall of liquid
Temperature control system is connected, and the resistance heating rod is for heating metal cavity and spinning solution, the thermocouple
For feeding back the temperature of metal cavity, the spinning solution temperature control system is for controlling heating temperature, the metal cavity
Interior to be equipped with propelling piston, the propelling piston and the cooperation of metal cavity inner wall realize that the encapsulation to spinning solution, the propulsion are lived
Plug is connect with pushing ram, and the pushing ram is connect with stepper motor output end, and stepper motor input terminal and electrostatic spinning control are
System connection, the metal cavity bottom are equipped with spray head connector, and the spray head connector is connected to by solution delivery line with spray head；
A kind of polymer solution electrostatic spinning component and device disclosed in Chinese patent 201320206585.1, the filament spinning component packet
Include, first electrode, with first electrode second electrode staggered relatively and be located at the first electrode and it is described second electricity
Spraying mechanism between pole, wherein the first electrode is plate electrode, and the spraying mechanism is used for the first electrode table
Face spray solution, the spraying mechanism have plate and scraper；Polymer Solution disclosed in Chinese patent 200710000533.X
The device of electrospun nanofibers film, composition characteristic are with the nozzle group by double-layer structure cylinder sprinkler composition.Often
A spray head is made of an outer layer cylinder and a small cylinder of internal layer, and electrospinning liquid carries out Static Spinning in interlayer by internal layer to outer layer
Silk film；A kind of polymer solution electrostatic spinning component disclosed in Chinese patent 201310148008.8, including first electrode, with
First electrode second electrode staggered relatively and the flush coater between the first electrode and the second electrode
Structure, wherein the first electrode is plate electrode, and the spraying mechanism is used for the first electrode surface spray solution；Institute
Stating spraying mechanism includes positioned at the jet pipe and plate disposed in parallel close to the first electrode side, wherein the length of the jet pipe
Degree is oriented parallel to plane where first electrode, has on the tube wall of the jet pipe for the first electrode spray solution
Opening, there are gaps between the plate and the first electrode surface.
Melt electrostatic spinning need heating device keep melt temperature, equipment is more complex, and made fiber is thicker, intensity compared with
Height, the interference in order to avoid high-pressure electrostatic to heating device, mostly uses spinning nozzle to be grounded, and reception device connects connecing for high-field electrode
Line mode makes spinning nozzle induction charging spinning, for example, a kind of autofeed formula disclosed in Chinese patent 201811144808.1
Melt electrostatic spinning device, including storage device, feed device, heat melt device for spinning；Be provided with above the feed device into
Material mouth, the storage device are set to above the feed inlet, and the storage device is for storing polymer wire raw material；It is described
Be provided with gear and idler wheel below feed inlet, the polymer wire raw material be clipped in the gear and idler wheel the field of conjugate action it
Between, the gear can drive the polymer wire raw material to move down；The heat melts device for spinning and is set to the gear
With the underface of the field of conjugate action of idler wheel, it includes heater, high voltage power supply and catch tray, the heater that the heat, which melts device for spinning,
Top be equipped with feed hopper, the lower part of the heater is equipped with Conic nozzle, and the feed hopper is connected to institute with the Conic nozzle
Catch tray is stated to be set to below the Conic nozzle；The polymer wire raw material can enter described add by the feed hopper
Hot device, and projected by the Conic nozzle；The Conic nozzle and the catch tray are metal material, the high voltage power supply
Positive to be electrically connected with the catch tray, the cathode of the high voltage power supply is electrically connected and is grounded with the Conic nozzle；Chinese patent
A kind of melt electrostatic spinning device disclosed in 201810775664.3, including feed unit, electrostatic spinning unit, atmosphere adjust list
Member and control unit；It is feed unit includes feeding roller, connect with feeding roller feeding stepper motor, disposed in parallel with feeding roller
Nip rolls, spinning material roller, the spinning material heater being fed to the gap between feeding roller and nip rolls；Electrostatic spinning unit
Spray head, adjustable high-voltage electrostatic including ground connection occur module, the electricity that the anode of module is connect occur with adjustable high-voltage electrostatic
Spin fiber collecting board；It includes flow type calorifier that atmosphere, which adjusts unit,；Control unit includes gas flow sensor, temperature sensing
Device, control panel, transformer and controller；A kind of centrifugation melt electrostatic spinning dress disclosed in Chinese patent 201810775663.9
It sets, including feed unit, electrospinning unit and control unit；Feed unit includes two feed pressure rollers, feed stepper motor, spinning
Material roller and heating tube；Electrospinning unit includes HV generator, spinning disc, connect with spinning disc lower surface center
Spinning motor, the collection circle connecting with the positive conductive of HV generator collect circle outside and are fixedly installed internal band spiral shell
The screw interconnecting piece of pit, screw interconnecting piece connection wire rod and height adjustment stepper motor；Control unit includes transformer and becomes
The controller and control panel connected to the controller that depressor is conductively connected, HV generator, feed stepper motor, spinning
Motor, height adjustment stepper motor, heating tube, spinning disc power supply elastic slice pass through conducting wire and are connected with controller；Chinese patent
A kind of melt electrostatic spinning device disclosed in 201710933372.3, including upper nozzle body and lower nozzle body are opened on upper nozzle body
Equipped with top nozzle inner cylinder, offer lower nozzle inner cylinder on lower nozzle body, top nozzle inner cylinder and the corresponding setting of lower nozzle inner cylinder and
Axis is overlapped；It is provided with jack at the top of upper nozzle body, core liquid pipe road is inserted through upper nozzle body and lower nozzle body, core by jack
Liquid pipe road is located in top nozzle inner cylinder and lower nozzle inner cylinder and three's axis is overlapped；There is core sap cavity, core liquid inside core liquid pipe road
The outer wall of pipeline and the closed composition skin sap cavity of inner wall of top nozzle inner cylinder and lower nozzle inner cylinder, lower nozzle body top is provided with connection
The chute of skin sap cavity is provided with skin liquid input duct on upper nozzle body, which is connected with chute；Core liquid pipe road and
Nozzle body is provided with below lower nozzle inner cylinder；Top nozzle inner cylinder, lower nozzle inner cylinder, core liquid pipe road, skin liquid input duct with
And it is provided with bumps on the surface of chute being in contact with polymer melt and prevents adhesion mechanism；The bumps anti-adhesion structure is equal
The recess and protrusion of even distribution.
By solution electrostatic spinning in conjunction with the made fiber of solution electrostatic spinning, can prepare both has high porosity, height
Specific surface area, and there is high-intensitive composite cellulosic membrane, have extensively in fields such as air filtration, water filtering and tissue engineering brackets
General application prospect.
Summary of the invention:
It is an object of the invention to overcome defect of the existing technology, a kind of more spray head electrostatic of solution melt cospinning are researched and developed
Spinning integrating device both has high porosity, height by solution electrostatic spinning in conjunction with the made fiber of solution electrostatic spinning to prepare
Specific surface area, and there is high-intensitive composite cellulosic membrane.
To achieve the goals above, solution melt cospinning multi-nozzle electrospinning integrating device main body knot of the present invention
Structure includes melt sleeve, through-hole, melt inlet, melt outlet, reference cone, first annular runner, holding screw, grounding electrode, adds
Gas ket, air-flow inner sleeve, air-flow outer sleeve, screw, air flow inlet, the second annular channel, air stream outlet, solution needle holder, ring
Shape liquid storage chamber, solution inlet, syringe needle and electrostatic generator；Top is in the form of annular discs, the melt sleeve of the cylindrical structure in lower part
Center offers the through-hole of circular configuration, and the top of through-hole is melt inlet, and the bottom end of through-hole is melt outlet, the inside of through-hole
Top is provided in cusp-shaped, the reference cone of the cylindrical structure in lower part, the gap between through-hole and reference cone forms first annular stream
Road, reference cone are connect by holding screw and melt sleeve connection, melt upper cartridge integrated disc portions with grounding electrode, melt sleeve
The outer wall of lower cylindrical part is embedded with the heating coil of cirque structure, the bottom surface of melt upper cartridge integrated disc portions, lower part circle
Air-flow inner sleeve is laid on the outside of the outer wall and heating coil of post part, the outside of air-flow inner sleeve is provided with air-flow outer sleeve,
Air-flow outer sleeve is connect by screw with the bottom surface of melt upper cartridge integrated disc portions after blocking air-flow inner sleeve, air-flow outer sleeve
Top offer the air flow inlet of circular configuration, the gap between air-flow inner sleeve and air-flow outer sleeve forms the second annular flow
The bottom end in road, the second annular channel is air stream outlet, and the outer wall of air-flow outer sleeve is arranged with the solution needle holder of cirque structure,
Solution needle holder is internally provided with annular liquid storage chamber, and the top uniform intervals formula setting of solution needle holder enters there are two solution
Mouthful, the bottom end uniform intervals formula of solution needle holder is provided with 20-30 syringe needle, and solution needle holder is connect with electrostatic generator.
The bottom end of melt sleeve of the present invention extends to form conical surface tip from inside to outside；The diameter of through-hole is greater than reference cone
Diameter so that formation gap between through-hole and reference cone and constituting first annular runner；Melt inlet and melt outlet difference
Passway as melt disengaging melt sleeve；The size of first annular runner screws in the depth tune of reference cone by holding screw
It is whole；Grounding electrode is protective grounding electrode；Heating coil be stainless steel mica electric heating coil, heating coil to keep the temperature of melt with
Maintain its mobility；The material of air-flow inner sleeve and air-flow outer sleeve is high-temperature insulation material；Screw is nylon screw；Air-flow
Entrance and air stream outlet are respectively the passway that high-temperature high-speed airflow passes in and out the second annular channel；Annular liquid storage chamber is solution storage
Chamber；Solution inlet is the passway that solution enters annular liquid storage chamber；At cylindric, lower part is in cusp-shaped on the top of syringe needle.
Solution melt cospinning multi-nozzle electrospinning integrating device of the present invention in use, solution and melt simultaneously into
It gives, solution is driven to enter via solution inlet by micro pump to flow out in annular liquid storage chamber and under pressure from syringe needle, melt
Entered in melt sleeve by melt inlet, melt annular under the shunting function of reference cone is uniformly distributed, by first annular runner
Be thinned after be further thinned at the conical surface tip of melt sleeve and be uniformly distributed in a ring, solution to be flowed out and melt divide
High-temperature high-speed airflow is passed through the second annular channel by air flow inlet, then opens electrostatic by cloth uniformly and after outflow stabilization
Voltage is adjusted to 5-30kV by device, and syringe needle is charged by conduction, and the solution at needle tip forms jet stream, jet stream dropping process
In, solvent volatilizees to form nanofiber, the conical surface tip induction charging of melt sleeve, and melt is swashed under the effect of strong induction field
Hair forms jet stream, and diameter micron order fiber is cooled into dropping process, and high-temperature high-speed airflow passes through the second annular channel
Be uniformly distributed and sprayed by air stream outlet in a ring afterwards, solution and the spun fiber of melt are isolated, prevent the spun fiber of solution by
The conical surface tip of melt sleeve is flown in Electrostatic Absorption effect and interferes the spun fiber of melt, meanwhile, high-temperature high-speed airflow is to molten
Liquid and the spun fiber of melt further stretch, and aggravation fiber whip is dynamic, help to reduce average fibre diameter, two kinds of fibers are falling
In the process, mutually winding, forms solution melt composite cellulosic membrane；The part syringe needle of solution needle holder is substituted with plug, is passed through
The quantity for controlling wire vent syringe needle adjusts the ratio of the spun fiber of solution melt, to meet the needs of different use occasions；Pass through tune
The size of the conical surface tip induction field intensity of the voltage adjusting melt sleeve of electrostatic generator is saved, control the spun fiber of melt
Quantity and diameter；The diameter of solution and the spun fiber of melt and molten is adjusted by adjusting the temperature and speed of high-temperature high-speed airflow
Liquid and the spun fiber of melt are entangled with winding degree.
Air-flow inner sleeve, air-flow outer sleeve and screw of the present invention are made of insulating material, so that electrostatic occurs
The high-pressure electrostatic that device is applied to solution needle holder will not be connected with melt sleeve, avoid high-pressure electrostatic breakdown heating coil to it
Damage, to guarantee solution melt cospinning multi-nozzle electrospinning integrating device stable operation, meanwhile, electrostatic generator and
Grounding electrode acts on solution melt cospinning multi-nozzle electrospinning integrating device simultaneously, so that fiber reception device not receiving electrode
It can be achieved with the generation and collection of fiber, to release the limitation to recipient's formula, can be realized the fibre in any body surface
Dimension spraying.
Compared with prior art, the present invention melt electrostatic spinning and solution electrostatic spinning are combined, disposably prepare
Not only there is high porosity, high-specific surface area, but also there is high-intensitive composite cellulosic membrane, relieve the limitation to reception device, energy
It enough realizes the fiber deposition of arbitrary surfaces, and according to actual needs, adjusts the quantity of solution and the spun fiber of melt, control is multiple
Thickness proportion of fibers in condensating fiber film, to be suitable for different application；Its structure is simple, easy to operate, and scientific in principle is reliable,
Use environment is friendly.
Detailed description of the invention:
Fig. 1 is main structure schematic illustration of the invention.
Fig. 2 is the main structure schematic illustration of solution needle holder of the present invention.
Specific embodiment:
Invention is further described in detail with reference to the accompanying drawing and by embodiment.
Embodiment 1:
The main structure for the solution melt cospinning multi-nozzle electrospinning integrating device that the present embodiment is related to includes melt set
Cylinder 1, through-hole 2, melt inlet 3, melt outlet 4, reference cone 5, first annular runner 6, holding screw 7, grounding electrode 8, heating coil
9, air-flow inner sleeve 10, air-flow outer sleeve 11, screw 12, air flow inlet 13, the second annular channel 14, air stream outlet 15, solution
Needle holder 16, annular liquid storage chamber 17, solution inlet 18, syringe needle 19 and electrostatic generator 20；Top is in the form of annular discs, and lower part is in cylinder
The center of the melt sleeve 1 of shape structure offers the through-hole 2 of circular configuration, and the top of through-hole 2 is melt inlet 3, the bottom of through-hole 2
End is melt outlet 4, and through-hole 2 is internally provided with top in cusp-shaped, the reference cone 5 of the cylindrical structure in lower part, through-hole 2 with point
Gap between cone 5 forms first annular runner 6, and reference cone 5 is connect by holding screw 7 with melt sleeve 1, on melt sleeve 1
Portion's integrated disc portions are connect with grounding electrode 8, and the outer wall of 1 lower cylindrical part of melt sleeve is embedded with the heating coil of cirque structure
9, bottom surface, the outer wall of lower cylindrical part and the outside of heating coil 9 of 1 upper disk part of melt sleeve are laid with air-flow inner sleeve
Cylinder 10, the outside of air-flow inner sleeve 10 is provided with air-flow outer sleeve 11, and air-flow outer sleeve 11 passes through after blocking air-flow inner sleeve 10
Screw 12 is connect with the bottom surface of 1 upper disk part of melt sleeve, and the top of air-flow outer sleeve 11 offers the gas of circular configuration
Inflow entrance 13, the gap between air-flow inner sleeve 10 and air-flow outer sleeve 11 form the second annular channel 14, the second annular channel
14 bottom end is air stream outlet 15, and the outer wall of air-flow outer sleeve 11 is arranged with the solution needle holder 16 of cirque structure, solution needle
Headstock 16 is internally provided with annular liquid storage chamber 17, and there are two solution inlets for the top uniform intervals formula setting of solution needle holder 16
18, the bottom end uniform intervals formula of solution needle holder 16 is provided with 20-30 syringe needle 19, solution needle holder 16 and electrostatic generator 20
Connection.
The bottom end for the melt sleeve 1 that the present embodiment is related to extends to form conical surface tip from inside to outside；The diameter of through-hole 2 is greater than
The diameter of reference cone 5, so that formation gap between through-hole 2 and reference cone 5 and constituting first annular runner 6；Melt inlet 3 and melt
Passway of the outlet 4 respectively as melt disengaging melt sleeve 1；The size of first annular runner 6 is screwed in by holding screw 7 divides
The depth adjustment of cone 5；Grounding electrode 8 is protective grounding electrode；Heating coil 9 is stainless steel mica electric heating coil, and heating coil 9 is to protect
The temperature of melt is held to maintain its mobility；The material of air-flow inner sleeve 10 and air-flow outer sleeve 11 is high-temperature insulation material；
Screw 12 is nylon screw；Air flow inlet 13 and air stream outlet 15 are respectively that high-temperature high-speed airflow passes in and out the second annular channel 14
Passway；Annular liquid storage chamber 17 is solution storage chamber；Solution inlet 18 is the passway that solution enters annular liquid storage chamber 17；Needle
At cylindric, lower part is in cusp-shaped on first 19 top.
Solution melt cospinning multi-nozzle electrospinning integrating device that the present embodiment is related in use, solution and melt simultaneously
Feeding, solution is driven by micro pump to be entered in annular liquid storage chamber 17 via solution inlet 18 and flows under pressure from syringe needle 19
Out, melt is entered in melt sleeve 1 by melt inlet 3, and melt annular under the shunting function of reference cone 5 is uniformly distributed, by the
One annular channel 6 be thinned after at the conical surface tip of melt sleeve 1 further be thinned and be uniformly distributed in a ring, it is to be flowed out
High-temperature high-speed airflow is passed through the second annular channel 14 by air flow inlet 13 uniformly and after outflow stabilization by solution and melt distribution,
Then electrostatic generator 20 is opened, voltage is adjusted to 5-30kV, syringe needle 19 is charged by conduction, the solution at 19 tip of syringe needle
Jet stream is formed, in jet stream dropping process, solvent volatilizees to form nanofiber, the conical surface tip induction charging of melt sleeve 1, melt
It is excited to form jet stream under the effect of strong induction field, and is cooled into diameter micron order fiber in dropping process, high temperature is high
Fast air-flow is uniformly distributed in a ring after the second annular channel 14 and is sprayed by air stream outlet 15, by solution and the spun fibre of melt
Dimension isolation, prevents the spun fiber of solution from interfering melt to be spun since Electrostatic Absorption effect flies to the conical surface tip of melt sleeve 1
Fiber, meanwhile, high-temperature high-speed airflow further stretches solution and the spun fiber of melt, and aggravation fiber whip is dynamic, helps to reduce
Average fibre diameter, two kinds of fibers are mutually wound in dropping process, form solution melt composite cellulosic membrane；By solution syringe needle
For the part syringe needle 19 of seat 16 with the substitution of plug 21, the quantity by controlling wire vent syringe needle 19 adjusts the ratio of the spun fiber of solution melt
Example, to meet the needs of different use occasions；Voltage by adjusting electrostatic generator 20 adjusts the conical surface tip of melt sleeve 1
The size of induction field intensity controls the quantity and diameter of the spun fiber of melt；By adjusting high-temperature high-speed airflow temperature and
The diameter and solution and the spun fiber of melt of speed adjusting solution and the spun fiber of melt are entangled with winding degree.
Air-flow inner sleeve 10, air-flow outer sleeve 11 and the screw 12 that the present embodiment is related to are made of insulating material, so that
The high-pressure electrostatic that electrostatic generator 20 is applied to solution needle holder 16 will not be connected with melt sleeve 1, avoid high-pressure electrostatic
Breakdown heating coil 9 damages it, to guarantee solution melt cospinning multi-nozzle electrospinning integrating device stable operation, together
When, electrostatic generator 20 and grounding electrode 8 act on solution melt cospinning multi-nozzle electrospinning integrating device simultaneously, so that fine
Dimension reception device generation and collection that receiving electrode not can be achieved with fiber can be realized to release the limitation to recipient's formula
In the fiber coating of any body surface.
Claims (4)
1. a kind of solution melt cospinning multi-nozzle electrospinning integrating device, it is characterised in that main structure include melt sleeve,
Through-hole, melt inlet, melt outlet, reference cone, first annular runner, holding screw, grounding electrode, heating coil, air-flow inner sleeve,
Air-flow outer sleeve, screw, air flow inlet, the second annular channel, air stream outlet, solution needle holder, annular liquid storage chamber, solution enter
Mouth, syringe needle and electrostatic generator；Top is in the form of annular discs, and the center of the melt sleeve of the cylindrical structure in lower part offers round knot
The through-hole of structure, the top of through-hole are melt inlet, and the bottom end of through-hole is melt outlet, and through-hole is internally provided with top in tip
Shape, the reference cone of the cylindrical structure in lower part, the gap between through-hole and reference cone form first annular runner, and reference cone passes through clamp screw
Nail and melt sleeve connection, melt upper cartridge integrated disc portions are connect with grounding electrode, outside melt lower cartridge column part
Wall is embedded with the heating coil of cirque structure, the bottom surface of melt upper cartridge integrated disc portions, the outer wall of lower cylindrical part and adds
Air-flow inner sleeve is laid on the outside of gas ket, the outside of air-flow inner sleeve is provided with air-flow outer sleeve, and air-flow outer sleeve blocks gas
It is connect by screw with the bottom surface of melt upper cartridge integrated disc portions after stream inner sleeve, the top of air-flow outer sleeve offers circle
The air flow inlet of structure, the gap between air-flow inner sleeve and air-flow outer sleeve form the second annular channel, the second annular channel
Bottom end be air stream outlet, the outer wall of air-flow outer sleeve is arranged with the solution needle holder of cirque structure, solution needle holder it is interior
Portion is provided with annular liquid storage chamber, and the top uniform intervals formula of solution needle holder is arranged there are two solution inlet, solution needle holder
Bottom end uniform intervals formula is provided with 20-30 syringe needle, and solution needle holder is connect with electrostatic generator.
2. solution melt cospinning multi-nozzle electrospinning integrating device according to claim 1, it is characterised in that melt set
The bottom end of cylinder extends to form conical surface tip from inside to outside；The diameter of through-hole is greater than the diameter of reference cone, so that between through-hole and reference cone
Formation gap and constitute first annular runner；Melt inlet and melt outlet pass in and out the channel of melt sleeve respectively as melt
Mouthful；The size of first annular runner is adjusted by the depth that holding screw screws in reference cone；Grounding electrode is protective grounding electrode；Add
Gas ket is stainless steel mica electric heating coil, and heating coil is to keep the temperature of melt to maintain its mobility；Air-flow inner sleeve is gentle
The material for flowing outer sleeve is high-temperature insulation material；Screw is nylon screw；Air flow inlet and air stream outlet are respectively high temperature height
Fast air-flow passes in and out the passway of the second annular channel；Annular liquid storage chamber is solution storage chamber；Solution inlet is that solution enters ring
The passway of shape liquid storage chamber；At cylindric, lower part is in cusp-shaped on the top of syringe needle.
3. solution melt cospinning multi-nozzle electrospinning integrating device according to claim 1, it is characterised in that in use,
Solution and melt are fed simultaneously, and solution is driven by micro pump to be entered in annular liquid storage chamber and under pressure via solution inlet
It is flowed out from syringe needle, melt is entered in melt sleeve by melt inlet, and melt annular under the shunting function of reference cone is uniformly distributed, warp
Cross first annular runner be thinned after at the conical surface tip of melt sleeve further be thinned and be uniformly distributed in a ring, wait flow out
Solution and melt distribution uniformly and outflow stablize after, high-temperature high-speed airflow is passed through the second annular channel by air flow inlet, so
After open electrostatic generator, voltage is adjusted to 5-30kV, syringe needle by conduction electrification, penetrates by the solution formation at needle tip
It flows, in jet stream dropping process, solvent volatilizees to form nanofiber, and the conical surface tip induction charging of melt sleeve, melt is being felt by force
It answers and is excited to form jet stream under electric field action, and be cooled into diameter micron order fiber, high-temperature high-speed airflow in dropping process
It is uniformly distributed after the second annular channel and is sprayed by air stream outlet in a ring, solution and the spun fiber of melt are isolated, prevented
Only the spun fiber of solution interferes the spun fiber of melt since Electrostatic Absorption effect flies to the conical surface tip of melt sleeve, meanwhile,
High-temperature high-speed airflow further stretches solution and the spun fiber of melt, and aggravation fiber whip is dynamic, and it is average straight to facilitate reduction fiber
Diameter, two kinds of fibers are mutually wound in dropping process, form solution melt composite cellulosic membrane；By the part needle of solution needle holder
Head is substituted with plug, and the quantity by controlling wire vent syringe needle adjusts the ratio of the spun fiber of solution melt, to meet different uses
The demand of occasion；Voltage by adjusting electrostatic generator adjusts the size of the conical surface tip induction field intensity of melt sleeve,
Control the quantity and diameter of the spun fiber of melt；Solution and melt institute are adjusted by adjusting the temperature and speed of high-temperature high-speed airflow
The diameter and solution and the spun fiber of melt for spinning fiber are entangled with winding degree.
4. solution melt cospinning multi-nozzle electrospinning integrating device according to claim 1, it is characterised in that in air-flow
Sleeve, air-flow outer sleeve and screw are made of insulating material, so that the high pressure that electrostatic generator is applied to solution needle holder is quiet
Electricity will not be connected with melt sleeve, avoid high-pressure electrostatic breakdown heating coil and damage to it, to guarantee solution melt
Cospinning multi-nozzle electrospinning integrating device stable operation, meanwhile, electrostatic generator and grounding electrode act on solution simultaneously and melt
Body cospinning multi-nozzle electrospinning integrating device, so that receiving electrode not can be achieved with the generation and receipts of fiber to fiber reception device
Collection can be realized the fiber coating in any body surface to release the limitation to recipient's formula.
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| CN201811570020.7A CN109371479B (en) | 2018-12-21 | 2018-12-21 | Solution melt co-spinning multi-nozzle electrostatic spinning integrated device |
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| CN201811570020.7A CN109371479B (en) | 2018-12-21 | 2018-12-21 | Solution melt co-spinning multi-nozzle electrostatic spinning integrated device |
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