CN106757425B - A kind of electrospinning device and its method for preparing hyperbranched hollow structure natural feather - Google Patents
A kind of electrospinning device and its method for preparing hyperbranched hollow structure natural feather Download PDFInfo
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- CN106757425B CN106757425B CN201710135402.6A CN201710135402A CN106757425B CN 106757425 B CN106757425 B CN 106757425B CN 201710135402 A CN201710135402 A CN 201710135402A CN 106757425 B CN106757425 B CN 106757425B
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- receiver board
- syringe needle
- coaxial
- reception plate
- vertical reception
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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
- D01D5/0015—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
- 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
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention belongs to biomimetic features textile preparation field, a kind of be related to electrospinning device and its prepare hyperbranched hollow structure natural feather method.Including shell, vertical reception plate, upper receiver board, lower receiver board, cutoff tool, coaxial syringe needle, the sandwich layer syringe being connected with coaxial syringe needle inner shaft and the intradermal injection device being connected with coaxial syringe needle outer shaft, and the micro-injection pump of external force is provided to sandwich layer syringe and intradermal injection device, macromolecule is dissolved in volatile solvent and forms homogeneous phase solution, it is placed in the injection device of connection electrostatic spinning syringe needle cortex construction, in syringe needle different location, (receiver board and syringe needle are disposed vertically one to the receiver board of electrostatic spinning, it is placed in parallel two), distance is placed, the voltage of vertical reception plate is in cyclically-varying simultaneously, by in the synperiodic chopped fibers of needle position, it is prepared for the hollow structure natural feather of different suede branch diameters and length.Natural feather obtained has the characteristics that form stable, suede branch is flourishing, bulkiness is good, heat insulating ability is excellent.
Description
Technical field
The invention belongs to biomimetic features textile preparation field, it is related to a kind of electrospinning device and its prepares in hyperbranched
The method of hollow structure natural feather.
Background technique
Natural down is mainly made of the soft feather of the birds chest such as duck, goose.Grey goose down, white goose can be divided by color
Suede, grey duck down, white duck down etc..Natural feather have branched structure (star piece shape structure), i.e., from derived from suede core come out more suede branches, edge
Suede branch bifurcated go out many smaller thinner second level suede branch, even three-level suede branches, suede branch surface have groove or node [Gao Jing, in
Big east, penning, textile journal, 2007,28(1), 1-4].Suede branch is very thin and is easily bent.Due to the feature on down structure, make
When its proper receiving pressure, these suede branches are difficult to mutually squeeze into, and are finally compressed with subtle resistance, but after pressure releases very
Fast to restore, natural feather has excellent bulkiness.
On the other hand, in each suede piece, all include the identical suede branch of tens root knot structures, exist between every suede branch
Certain repulsion, so that spacing between every suede branch is kept maximum, can theoretically there is more air.In each suede branch, all
Long there are many second order suede branches, and when numerous natural feathers mix, second order suede branch is mutually entwined, is overlapped, and are formed and prevent air free
The multibarrier of flowing increases the convection current difficulty of air.Each corduroy branch of natural feather is hollow simultaneously, and the inside is full of sky
Gas, and air is best thermal insulation material.So possessing optimal heat insulation effect in natural material.
Although natural feather has clear advantage, as the byproduct of birds industry, due to by growth cycle and edible valence
The influence of value, ideal suede piece performance can not be guaranteed, while the problems such as mushroom content in natural feather, fugitive dust and bird flu
Annoying the development of natural feather related industry.
Artificial natural feather becomes the direction of natural feather industry development, but existing artificial natural feather mostly uses high mountain yakwool, ultra-fine
The chemical fibres such as the natural fibers such as wool and PVA or fabric, by the methods of flocking processing obtain [Zhou Bin, Wang Huiling, Liu Hua,
Fan Lishan, Qu Caixin, Zhang Shengzhong, a kind of artificial natural feather production equipment, ZL 201510988301.4], either feel, rebound
Property, warmth retention property or comfort level, are all inferior to natural down.
It is straight can to obtain different scale as a kind of novel non-woven method for preparing fabric for another aspect electrostatic spinning
The fiber of diameter, structure.Wherein branch-like structural fibers are to split what timesharing was formed in jet stream, point cause distribution of charges not due to splitting
, thread is caused to be further split into thinner multiply, division forms multi-level branched structure [Li Shanshan, He Suwen, Hu Zu step by step
It is bright, Yu Junrong, Chen Lei, Zhu Jing, synthetic fiber industry, 2009,32(4), 44-46] and, that is, form dissaving structure.It needs to design
The length for controlling dissaving structure, so that guidance system is for artificial natural feather.
Summary of the invention
The present invention is to solve the problems, such as that the existing natural feather production cycle is long, yield is unstable, post-processing is complicated, while solving existing
There is the technical issues of poor artificial down structure similarity, degraded performance, provides a kind of electrospinning device and its preparation over-expense
Change the method for hollow structure natural feather.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of electrospinning device, including shell, vertical reception plate, upper receiver board, lower receiver board, cutoff tool, coaxial needles
Head, the sandwich layer syringe being connected with coaxial syringe needle inner shaft and the intradermal injection device being connected with coaxial syringe needle outer shaft, and give
Sandwich layer syringe and intradermal injection device provide the micro-injection pump of external force, and cutoff tool is parallel to vertical reception plate set on coaxial syringe needle
Place, one end of cutoff tool is fixed on the shell, and the square wave high pressure of entire electrospinning device is by being connected with the high pressure of periodic switch
Generator provide, the periodic switch includes the switch II connecting simultaneously with vertical reception plate with lower receiver board, and with above connect
Receive the switch I that plate is connected.
The vertical reception plate, upper receiver board, lower receiver board, cutoff tool and coaxial syringe needle are each attached on shell, vertically
Receiver board, upper receiver board and lower receiver board form Contraband type, and coaxial syringe needle is located in the middle part of Contraband type.
The vertical reception plate, upper receiver board and lower receiver board are metal plate or the metal plate for being covered with tinfoil paper layer.
A kind of method that electrospinning device prepares hyperbranched hollow structure natural feather, preparation step are as follows:
(1) high-molecular compound is dissolved in volatile solvent and forms homogeneous phase solution, be added in intradermal injection device, sandwich layer object
Matter is passed through in sandwich layer syringe, and the syringe with coaxial syringe needle is then fixed on micro-injection pump；
(2) axial direction of the coaxial syringe needle of electrospinning device is parallel to horizontal plane to place, vertical reception plate, upper reception
Plate and lower receiver board are adjusted to the line perpendicular to coaxial needle tip and the receiver board center, and guarantee that vertical reception plate is vertical
In the axial direction of coaxial syringe needle, upper and lower receiver sheet is parallel to the axial direction of coaxial syringe needle, and is respectively parallel to horizontal plane,
Switch II is connected into vertical reception plate, switch I and upper receiver board are disconnected, passed to for vertical reception plate in periodically variable square wave
Voltage；
(3) environment temperature and humidity for adjusting electrospinning device work, opening micro-injection pump makes solution from coaxial needles
Head sprays, and using the period of syringe needle prescription wave voltage as the period, cutoff tool is moved downward since highest point, at 1/2 period, is cut
Breaking reaches at syringe needle, cut staple, and switch II disconnects vertical reception plate, connects lower receiver board at this time, and switch I is connected and received
Plate；After 1/2 period, switch II connects vertical reception plate, and switch I and upper receiver board disconnect, and cutoff tool reaches lowest point, and quasi-
It is standby to move upwards, it loops back and forth like this, obtains the hollow structure natural feather of different suede branch diameters and length.
In the step (1), high-molecular compound is polylactic acid or polyvinyl alcohol, and volatile solvent is chloroform, two
One of chloromethanes, tetrahydrofuran are a variety of, and the content of high-molecular compound is 3-30wt%, and sandwich layer is air, nitrogen, three
One of chloromethanes is a variety of.
In the step (2), period of the square-wave voltage of vertical reception plate is 0.3s-2s, high-voltage value 10-40kV,
As low pressure when earth-free；Vertical reception plate center is with coaxial needle tip line perpendicular to receiving plane, vertical reception plate distance
Coaxial needle tip is 10-30cm, and upper receiver board plate is 10-30cm apart from needle tip, and lower receiver board is apart from coaxial needle tip
End is 6-50cm, and vertical reception plate and lower receiver board are connected with earthing switch, and upper receiver board is identical as coaxial syringe needle voltage, phase difference
For the half period of square-wave voltage.
In the step (3), electrospinning device work environment temperature be 10-40 DEG C, relative humidity 20-50%；Skin
Layer syringe injection speed is 0.1-3mL/h, and sandwich layer syringe injection speed is 0.2-5mL/h, and the diameter of coaxial syringe needle is
0.2-0.6mm, interior shaft diameter are 0.3-0.8mm, outer shaft diameter 0.5-1.3mm.
Solution thread from coaxial syringe needle come out after, individual filament have positive charge, as the solvent evaporates, charge density increase
Greatly, energy increases, and explosion occurs and forms spherical tow；Simultaneously with the generation of upper and lower receiver board voltage difference, thread is to vertical
The movement of receiver sheet turns to 90 ° of movements for becoming downward receiver board suddenly, and monofilament further divides, to form hyperbranched natural feather
Structure.
Square wave high pressure is provided by the high pressure generator (high voltage power supply) for being connected with periodic switch, that is, square wave high voltage is
High pressure generator voltage is defined as low-pressure state with high voltage power supply off-state.
The beneficial effects of the present invention are:
1. the electrospinning device structure that the present invention prepares natural feather is simple, design is reasonable；Using commodity polymer, price
Low, no subsequent processes, preparation route is simple；
2. hyperbranched hollow structure natural feather prepared by the present invention is nontoxic, tasteless, environmentally protective, without post-processing, suede branch is long
Degree is controllable, and bulkiness, warmth retention property are adjustable；Structure is fluffy, and resilience is good；
3. natural feather prepared by the present invention is hollow structure, warmth retention property is further improved；It is hyperbranched and hollow dual bionical
Structure maintains the bulkiness and warmth retention property of natural feather to the full extent.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electrospinning device, wherein 1- vertical reception plate, 2- upper receiver board receive under 3-
Plate, 4- cutoff tool, the coaxial syringe needle of 5-, 6- sandwich layer syringe, 7- intradermal injection device, 8- micro-injection pump, 9- switch I, 10- switch
Ⅱ。
Specific embodiment
A kind of electrospinning device, including shell, vertical reception plate, upper receiver board, lower receiver board, cutoff tool, coaxial needles
Head, the sandwich layer syringe being connected with coaxial syringe needle inner shaft and the intradermal injection device being connected with coaxial syringe needle outer shaft, and give
Sandwich layer syringe and intradermal injection device provide the micro-injection pump of external force, and cutoff tool is parallel to vertical reception plate set on coaxial syringe needle
Place, one end of cutoff tool is fixed on the shell, and the square wave high pressure of entire electrospinning device is by being connected with the high pressure of periodic switch
Generator provides.
The vertical reception plate, upper receiver board, lower receiver board, cutoff tool and coaxial syringe needle are each attached on shell, vertically
Receiver board, upper receiver board and lower receiver board form Contraband type, and coaxial syringe needle is located in the middle part of Contraband type.
The vertical reception plate, upper receiver board and lower receiver board are metal plate or the metal plate for being covered with tinfoil paper layer.
A kind of method that electrospinning device prepares hyperbranched hollow structure natural feather, preparation step are as follows:
(1) high-molecular compound is dissolved in volatile solvent and forms homogeneous phase solution, be added in intradermal injection device, sandwich layer object
Matter is passed through in sandwich layer syringe, and the syringe with coaxial syringe needle is then fixed on micro-injection pump；
(2) axial direction of the coaxial syringe needle of electrospinning device is parallel to horizontal plane to place, vertical reception plate, upper reception
Plate and lower receiver board are adjusted to the line perpendicular to coaxial needle tip and the receiver board center, and guarantee that vertical reception plate is vertical
In the axial direction of coaxial syringe needle, upper and lower receiver sheet is parallel to the axial direction of coaxial syringe needle, and is respectively parallel to horizontal plane,
Switch II is connected into vertical reception plate, switch I and upper receiver board are disconnected, passed to for vertical reception plate in periodically variable square wave
Voltage；
(3) environment temperature and humidity for adjusting electrospinning device work, opening micro-injection pump makes solution from coaxial needles
Head sprays, and using the period of syringe needle prescription wave voltage as the period, cutoff tool is moved downward since highest point, at 1/2 period, is cut
Breaking reaches at syringe needle, cut staple, and switch II disconnects vertical reception plate, connects lower receiver board at this time, and switch I is connected and received
Plate；After 1/2 period, switch II connects vertical reception plate, and switch I and upper receiver board disconnect, and cutoff tool reaches lowest point, and quasi-
It is standby to move upwards, it loops back and forth like this, obtains the hollow structure natural feather of different suede branch diameters and length.
In the step (1), high-molecular compound is polylactic acid or polyvinyl alcohol, and volatile solvent is chloroform, two
One of chloromethanes, tetrahydrofuran are a variety of, and the content of high-molecular compound is 3-30wt%, and sandwich layer is air, nitrogen, three
One of chloromethanes is a variety of.
In the step (2), period of the square-wave voltage of vertical reception plate is 0.3s-2s, high-voltage value 10-40kV,
As low pressure when earth-free；Vertical reception plate center is with coaxial needle tip line perpendicular to receiving plane, vertical reception plate distance
Coaxial needle tip is 10-30cm, and upper receiver board plate is 10-30cm apart from needle tip, and lower receiver board is apart from coaxial needle tip
End is 6-50cm, and vertical reception plate and lower receiver board are connected with earthing switch, and upper receiver board is identical as coaxial syringe needle voltage, phase difference
For the half period of square-wave voltage.
In the step (3), electrospinning device work environment temperature be 10-40 DEG C, relative humidity 20-50%；Skin
Layer syringe injection speed is 0.1-3mL/h, and sandwich layer syringe injection speed is 0.2-5mL/h, and the diameter of coaxial syringe needle is
0.2-0.6mm, interior shaft diameter are 0.3-0.8mm, outer shaft diameter 0.5-1.3mm.
Combined with specific embodiments below, a preferred embodiment of the present invention will be described in detail.Illustrated embodiment be for
Preferably the contents of the present invention are illustrated, but are not the contents of the present invention are only limitted to illustrated embodiment.So being familiar with
The non-intrinsically safe modifications and adaptations that those skilled in the art carries out embodiment according to foregoing invention content, still fall within the present invention
Protection scope.
Embodiment 1
Polylactic acid macromolecule is dissolved in the homogeneous phase solution for forming 3wt% in chloroform, is placed in outside connection electrostatic spinning syringe needle
In the injection device of layer structure, air is placed in the injection device of connection electrostatic spinning syringe needle core structure, and is fixed on micro
On syringe pump.
Perpendicular to receiving plane, vertical reception plate 1 is 10cm apart from needle tip for receiver board center and needle tip line, on
Parallel-plate 2 apart from needle tip be 10cm, lower parallel-plate 3 apart from needle tip be 6cm, receiver board 1,3 be grounded, receiver board 2 with
Syringe needle voltage is identical, and phase difference is the half period.The period of the square-wave voltage of vertical reception plate is 0.3s, and voltage high level is 10kV,
Low value is 0.
The environment temperature of electrostatic spinning is set as 10 DEG C, relative humidity 20%.Intradermal injection speed is 0.1 ml/h, core
Layer injection speed is 0.2ml/h, and the syringe needle sandwich layer diameter 0.2mm of coaxial electrostatic spinning, cortex internal diameter is 0.3mm, cortex outer diameter
For 0.5mm.The period is cut off using the period of receiver board square-wave voltage as the period, when vertical reception plate (1) and high voltage power supply disconnect,
In needle position cut staple, and connect parallel receiver board (2,3) high-voltage switch gear up and down；In the lower half disconnected with high voltage power supply
Interim, receiver board 3 receives the hyperbranched hollow structure natural feather generated, and then circulation carries out next period.
So that 15-25 μm of diameter of level-one suede branch is obtained, 3-10 μm of diameter of second level suede branch, 0.3-1 μm of diameter of three-level suede branch
Piece suede.Obtaining fluffy degree using natural feather fluffy degree method of testing in GB/T 14272-2011<down coat>is 15.6cm.Reference
GB11048-89<textile thermal property experimental method>, thermal coefficient when loading is 25g is 1.0W/m2DEG C, heat preservation rate
It is 87.3%.
Embodiment 2
Polyvinyl alcohol is dissolved in the homogeneous phase solution for forming 30wt% in chloroform, is placed in connection electrostatic spinning syringe needle cortex
In the injection device of structure, air is placed in the injection device of connection electrostatic spinning syringe needle core structure, and is fixed on micro note
It penetrates on pump.
Perpendicular to receiving plane, vertical reception plate 1 is 30cm apart from needle tip for receiver board center and needle tip line, on
Parallel-plate 2 apart from needle tip be 30cm, lower parallel-plate 3 apart from needle tip be 50cm, receiver board 1,3 be grounded, receiver board 2 with
Syringe needle voltage is identical, and phase difference is the half period.The period of the square-wave voltage of vertical reception plate is 2s, and voltage high level is 40kV, low
Value is 0.
The environment temperature of electrostatic spinning is set as 40 DEG C, relative humidity 50%.Intradermal injection speed is 3ml/h, sandwich layer note
Firing rate degree is 5ml/h, and the syringe needle sandwich layer diameter 0.6mm of coaxial electrostatic spinning, cortex internal diameter is 0.8mm, and cortex outer diameter is
1.3mm.The period is cut off using the period of receiver board square-wave voltage as the period, when vertical reception plate (1) and high voltage power supply disconnect,
Needle position cut staple, and connect parallel receiver board (2,3) high-voltage switch gear up and down；In the lower half period disconnected with high voltage power supply
In, receiver board 3 receives the hyperbranched hollow structure natural feather generated, and then circulation carries out next period.
So that 10-15 μm of diameter of level-one suede branch is obtained, 3-6 μm of diameter of second level suede branch, 0.2-0.6 μm of diameter of three-level suede branch
Piece suede.Obtaining fluffy degree using natural feather fluffy degree method of testing in GB/T 14272-2011<down coat>is 17.6cm.Reference
GB11048-89<textile thermal property experimental method>, thermal coefficient when loading is 25g is 0.8W/m2DEG C, heat preservation rate
It is 89.3%.
Embodiment 3
Polylactic acid is dissolved in the homogeneous phase solution for forming 15wt% in methylene chloride, is placed in connection electrostatic spinning syringe needle cortex knot
In the injection device of structure, nitrogen is placed in the injection device of connection electrostatic spinning syringe needle core structure, and is fixed on micro-injection
On pump.
Perpendicular to receiving plane, vertical reception plate 1 is 20cm apart from needle tip for receiver board center and needle tip line, on
Parallel-plate 2 apart from needle tip be 20cm, lower parallel-plate 3 apart from needle tip be 30cm, receiver board 1,3 be grounded, receiver board 2 with
Syringe needle voltage is identical, and phase difference is the half period.The period of the square-wave voltage of vertical reception plate is 1.6s, and voltage high level is 30kV,
Low value is 0.
The environment temperature of electrostatic spinning is set as 30 DEG C, relative humidity 21%.Intradermal injection speed is 0.5ml/h, sandwich layer
Injection speed is 0.9ml/h, and the syringe needle sandwich layer diameter 0.4mm of coaxial electrostatic spinning, cortex internal diameter is 0.6mm, and cortex outer diameter is
1.0mm.The period is cut off using the period of receiver board square-wave voltage as the period, when vertical reception plate (1) and high voltage power supply disconnect,
Needle position cut staple, and connect parallel receiver board (2,3) high-voltage switch gear up and down；In the lower half period disconnected with high voltage power supply
In, receiver board 3 receives the hyperbranched hollow structure natural feather generated, and then circulation carries out next period.
So that 11-17 μm of diameter of level-one suede branch is obtained, 2-8 μm of diameter of second level suede branch, 0.4-0.9 μm of diameter of three-level suede branch
Piece suede.Obtaining fluffy degree using natural feather fluffy degree method of testing in GB/T 14272-2011<down coat>is 18.6cm.Reference
GB11048-89<textile thermal property experimental method>, thermal coefficient when loading is 25g is 0.83W/m2DEG C, heat preservation rate
It is 88.3%.
Embodiment 4
Polylactic acid is dissolved in the homogeneous phase solution for forming 18wt% in tetrahydrofuran, is placed in connection electrostatic spinning syringe needle cortex knot
In the injection device of structure, chloroform is placed in the injection device of connection electrostatic spinning syringe needle core structure, and is fixed on micro
On syringe pump.
Perpendicular to receiving plane, vertical reception plate 1 is 10cm apart from needle tip for receiver board center and needle tip line, on
Parallel-plate 2 apart from needle tip be 20cm, lower parallel-plate 3 apart from needle tip be 6cm, receiver board 1,3 be grounded, receiver board 2 with
Syringe needle voltage is identical, and phase difference is the half period.The period of the square-wave voltage of vertical reception plate is 2s, and voltage high level is 20kV, low
Value is 0.
The environment temperature of electrostatic spinning is set as 20 DEG C, relative humidity 20%.Intradermal injection speed is 0.2ml/h, sandwich layer
Injection speed is 4ml/h, and the syringe needle sandwich layer diameter 0.2mm of coaxial electrostatic spinning, cortex internal diameter is 0.3mm, and cortex outer diameter is
0.5mm.The period is cut off using the period of receiver board square-wave voltage as the period, when vertical reception plate (1) and high voltage power supply disconnect,
Needle position cut staple, and connect parallel receiver board (2,3) high-voltage switch gear up and down；In the lower half period disconnected with high voltage power supply
In, receiver board 3 receives the hyperbranched hollow structure natural feather generated, and then circulation carries out next period.
So that 3-15 μm of diameter of level-one suede branch is obtained, 1-6 μm of diameter of second level suede branch, 0.2-0.4 μm of diameter of three-level suede branch
Piece suede.Obtaining fluffy degree using natural feather fluffy degree method of testing in GB/T 14272-2011<down coat>is 18.6cm.Reference
GB11048-89<textile thermal property experimental method>, thermal coefficient when loading is 25g is 0.6W/m2DEG C, heat preservation rate
It is 92.3%.
Embodiment 5
Polyvinyl alcohol is dissolved in the homogeneous phase solution for forming 5wt% in chloroform, is placed in connection electrostatic spinning syringe needle cortex knot
In the injection device of structure, nitrogen is placed in the injection device of connection electrostatic spinning syringe needle core structure, and is fixed on micro-injection
On pump.
Perpendicular to receiving plane, vertical reception plate 1 is 30cm apart from needle tip for receiver board center and needle tip line, on
Parallel-plate 2 apart from needle tip be 10cm, lower parallel-plate 3 apart from needle tip be 50cm, receiver board 1,3 be grounded, receiver board 2 with
Syringe needle voltage is identical, and phase difference is the half period.The period of the square-wave voltage of vertical reception plate is 2s, and voltage high level is 20kV, low
Value is 0.
The environment temperature of electrostatic spinning is set as 40 DEG C, relative humidity 20%.Intradermal injection speed is 0.3ml/h, sandwich layer
Injection speed is 0.2ml/h, and the syringe needle sandwich layer diameter 0.5mm of coaxial electrostatic spinning, cortex internal diameter is 0.8mm, and cortex outer diameter is
1.0mm.The period is cut off using the period of receiver board square-wave voltage as the period, when vertical reception plate (1) and high voltage power supply disconnect,
Needle position cut staple, and connect parallel receiver board (2,3) high-voltage switch gear up and down；In the lower half period disconnected with high voltage power supply
In, receiver board 3 receives the hyperbranched hollow structure natural feather generated, and then circulation carries out next period.
So that 4-13 μm of diameter of level-one suede branch is obtained, 1-8 μm of diameter of second level suede branch, 0.3-0.6 μm of diameter of three-level suede branch
Piece suede.Obtaining fluffy degree using natural feather fluffy degree method of testing in GB/T 14272-2011<down coat>is 18.6cm.Reference
GB11048-89<textile thermal property experimental method>, thermal coefficient when loading is 25g is 0.9W/m2DEG C, heat preservation rate
It is 88.3%.
Embodiment 6
Polylactic acid is dissolved in the homogeneous phase solution for forming 23wt% in chloroform, is placed in connection electrostatic spinning syringe needle cortex knot
In the injection device of structure, air is placed in the injection device of connection electrostatic spinning syringe needle core structure, and is fixed on micro-injection
On pump.
Perpendicular to receiving plane, vertical reception plate 1 is 30cm apart from needle tip for receiver board center and needle tip line, on
Parallel-plate 2 apart from needle tip be 20cm, lower parallel-plate 3 apart from needle tip be 40cm, receiver board 1,3 be grounded, receiver board 2 with
Syringe needle voltage is identical, and phase difference is the half period.The period of the square-wave voltage of vertical reception plate is 2s, and voltage high level is 30kV, low
Value is 0.
The environment temperature of electrostatic spinning is set as 30 DEG C, relative humidity 50%.Intradermal injection speed is 2ml/h, sandwich layer note
Firing rate degree is 4ml/h, and the syringe needle sandwich layer diameter 0.6mm of coaxial electrostatic spinning, cortex internal diameter is 0.8mm, and cortex outer diameter is
1.3mm.The period is cut off using the period of receiver board square-wave voltage as the period, when vertical reception plate (1) and high voltage power supply disconnect,
Needle position cut staple, and connect parallel receiver board (2,3) high-voltage switch gear up and down；In the lower half period disconnected with high voltage power supply
In, receiver board 3 receives the hyperbranched hollow structure natural feather generated, and then circulation carries out next period.
So that 10-13 μm of diameter of level-one suede branch is obtained, 3-7 μm of diameter of second level suede branch, 0.4-0.6 μm of diameter of three-level suede branch
Piece suede.Obtaining fluffy degree using natural feather fluffy degree method of testing in GB/T 14272-2011<down coat>is 14.6cm.Reference
GB11048-89<textile thermal property experimental method>, thermal coefficient when loading is 25g is 1.2W/m2DEG C, heat preservation rate
It is 69.3%.
Embodiment 7
Polyvinyl alcohol is dissolved in the mixed solution of chloroform/methylene chloride (wt% of 50wt%/50) and forms the equal of 8wt%
Phase solution is placed in the injection device of connection electrostatic spinning syringe needle cortex construction, and air is placed in connection electrostatic spinning syringe needle sandwich layer
In the injection device of structure, and it is fixed on micro-injection pump.
Perpendicular to receiving plane, vertical reception plate 1 is 19cm apart from needle tip for receiver board center and needle tip line, on
Parallel-plate 2 apart from needle tip be 23cm, lower parallel-plate 3 apart from needle tip be 35cm, receiver board 1,3 be grounded, receiver board 2 with
Syringe needle voltage is identical, and phase difference is the half period.The period of the square-wave voltage of vertical reception plate is 1.3s, and voltage high level is 22kV,
Low value is 0.
The environment temperature of electrostatic spinning is set as 30 DEG C, relative humidity 34%.Intradermal injection speed is 0.3ml/h, sandwich layer
Injection speed is 5ml/h, and the syringe needle sandwich layer diameter 0.6mm of coaxial electrostatic spinning, cortex internal diameter is 0.8mm, and cortex outer diameter is
1.3mm.The period is cut off using the period of receiver board square-wave voltage as the period, when vertical reception plate (1) and high voltage power supply disconnect,
Needle position cut staple, and connect parallel receiver board (2,3) high-voltage switch gear up and down；In the lower half period disconnected with high voltage power supply
In, receiver board 3 receives the hyperbranched hollow structure natural feather generated, and then circulation carries out next period.
To obtain 14-18 μm of diameter of level-one suede branch, 3-5 μm of diameter of second level suede branch, piece of 0.2-1 μm of diameter of three-level suede branch
Suede.Obtaining fluffy degree using natural feather fluffy degree method of testing in GB/T 14272-2011<down coat>is 14.6cm.Reference
GB11048-89<textile thermal property experimental method>, thermal coefficient when loading is 25g is 1.1W/m2DEG C, heat preservation rate
It is 79.2%.
Claims (4)
1. a kind of method that electrospinning device prepares hyperbranched hollow structure natural feather, which is characterized in that preparation step is as follows:
(1) high-molecular compound is dissolved in volatile solvent and forms homogeneous phase solution, be added in intradermal injection device, sandwich layer substance is logical
Enter in sandwich layer syringe, the syringe with coaxial syringe needle is then fixed on micro-injection pump；
(2) by the axial direction of the coaxial syringe needle of electrospinning device be parallel to horizontal plane place, vertical reception plate, upper receiver board and
Lower receiver board is adjusted to the line perpendicular to coaxial needle tip and the receiver board center, and guarantees vertical reception plate perpendicular to same
The axial direction of axonometer head, upper and lower receiver sheet are parallel to the axial direction of coaxial syringe needle, and are respectively parallel to horizontal plane, will open
It closes II and connects vertical reception plate, switch I and upper receiver board disconnect, and pass to for vertical reception plate in periodically variable square wave electricity
Pressure；
(3) environment temperature and humidity for adjusting electrospinning device work, opening micro-injection pump sprays solution from coaxial syringe needle
Out, using the period of syringe needle prescription wave voltage as the period, cutoff tool is moved downward since highest point, at 1/2 period, cutoff tool
It reaches at syringe needle, cut staple, switch II disconnects vertical reception plate, connects lower receiver board at this time, and switch I connects upper receiver board；
After 1/2 period, switch II connects vertical reception plate, and switch I and upper receiver board disconnect, and cutoff tool reaches lowest point, and prepares
It moves upwards, loops back and forth like this, obtain the hollow structure natural feather of different suede branch diameters and length；
The electrospinning device, including shell, vertical reception plate, upper receiver board, lower receiver board, cutoff tool, coaxial syringe needle, with
The coaxial syringe needle inner shaft sandwich layer syringe being connected and the intradermal injection device being connected with coaxial syringe needle outer shaft, and infused to sandwich layer
Emitter and intradermal injection device provide the micro-injection pump of external force, and cutoff tool is parallel to vertical reception plate at coaxial syringe needle, cuts
One end of breaking is fixed on the shell, and the square wave high pressure of entire electrospinning device is by being connected with the high pressure generator of periodic switch
There is provided, the periodic switch includes the switch II connecting simultaneously with vertical reception plate with lower receiver board, and with upper receiver board phase
The switch I of connection；
The vertical reception plate, upper receiver board, lower receiver board, cutoff tool and coaxial syringe needle are each attached on shell, vertical reception
Plate, upper receiver board and lower receiver board form Contraband type, and coaxial syringe needle is located in the middle part of Contraband type；
The vertical reception plate, upper receiver board and lower receiver board are metal plate or the metal plate for being covered with tinfoil paper layer.
2. the method that electrospinning device according to claim 1 prepares hyperbranched hollow structure natural feather, it is characterised in that:
In the step (1), high-molecular compound is polylactic acid or polyvinyl alcohol, and volatile solvent is chloroform, methylene chloride, four
One of hydrogen furans is a variety of, and the content of high-molecular compound is 3-30wt%, and sandwich layer is air, in nitrogen, chloroform
It is one or more.
3. the method that electrospinning device according to claim 1 prepares hyperbranched hollow structure natural feather, it is characterised in that:
In the step (2), the period of the square-wave voltage of vertical reception plate is 0.3s-2s, high-voltage value 10-40kV, when earth-free
As low pressure；Vertical reception plate center is with coaxial needle tip line perpendicular to receiving plane, and vertical reception plate is apart from coaxial syringe needle
Tip is 10-30cm, and upper receiver board plate is 10-30cm apart from needle tip, and lower receiver board is 6- apart from coaxial needle tip
50cm, vertical reception plate and lower receiver board are connected with earthing switch, and upper receiver board is identical as coaxial syringe needle voltage, and phase difference is square wave
The half period of voltage.
4. the method that electrospinning device according to claim 1 prepares hyperbranched hollow structure natural feather, it is characterised in that:
In the step (3), electrospinning device work environment temperature be 10-40 DEG C, relative humidity 20-50%；Intradermal injection device
Injection speed is 0.1-3mL/h, and sandwich layer syringe injection speed is 0.2-5mL/h, and the diameter of coaxial syringe needle is 0.2-0.6mm,
Interior shaft diameter is 0.3-0.8mm, outer shaft diameter 0.5-1.3mm.
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| CN201710135402.6A CN106757425B (en) | 2017-03-08 | 2017-03-08 | A kind of electrospinning device and its method for preparing hyperbranched hollow structure natural feather |
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| CN110284208B (en) * | 2019-05-28 | 2020-08-04 | 武汉纺织大学 | Two-way collection system of centrifugal spinning |
| CN111394810B (en) * | 2020-03-24 | 2021-06-11 | 苏州经结纬面料科技有限公司 | Down-like feather preparation device and working method thereof |
| CN111364107B (en) * | 2020-03-24 | 2021-05-25 | 苏州经结纬面料科技有限公司 | Device and method for preparing down-like feather |
| CN111690993A (en) * | 2020-06-24 | 2020-09-22 | 湖南工程学院 | Coaxial injection needle tube for electrostatic spinning |
| CN115262051A (en) * | 2022-05-13 | 2022-11-01 | 北京化工大学 | Polymer melt differential down in-situ composite spinning device |
| CN114941179B (en) * | 2022-06-06 | 2023-02-28 | 北京化工大学 | Method for preparing long-stagnant-space superfine hollow conductive long fiber through electrostatic spinning |
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| JP4710783B2 (en) * | 2006-10-02 | 2011-06-29 | パナソニック株式会社 | Electrostatic discharge method and apparatus, electrostatic work method and apparatus using them |
| US20110245922A1 (en) * | 2010-03-31 | 2011-10-06 | National University Corporation Nagoya Institute Of Technology | Material for filling bone defects and production method thereof |
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| US20130196405A1 (en) * | 2010-11-12 | 2013-08-01 | Ngee Ann Polytechnic | Porous fiber, methods of making the same and uses thereof |
| CN106087078A (en) * | 2016-06-21 | 2016-11-09 | 华南理工大学 | A kind of receptor for electrostatic spinning, electrostatic spinning apparatus, there is the preparation method of the three-dimensional manometer fibre structure of multi-stage porous |
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| JP4710783B2 (en) * | 2006-10-02 | 2011-06-29 | パナソニック株式会社 | Electrostatic discharge method and apparatus, electrostatic work method and apparatus using them |
| US20110245922A1 (en) * | 2010-03-31 | 2011-10-06 | National University Corporation Nagoya Institute Of Technology | Material for filling bone defects and production method thereof |
| US20110250308A1 (en) * | 2010-04-12 | 2011-10-13 | The UAB Foundation | Electrospinning apparatus, methods of use, and uncompressed fibrous mesh |
| US20130196405A1 (en) * | 2010-11-12 | 2013-08-01 | Ngee Ann Polytechnic | Porous fiber, methods of making the same and uses thereof |
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