CN107142534B - A kind of solution jet spinning equipment - Google Patents
A kind of solution jet spinning equipment Download PDFInfo
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- CN107142534B CN107142534B CN201710379201.0A CN201710379201A CN107142534B CN 107142534 B CN107142534 B CN 107142534B CN 201710379201 A CN201710379201 A CN 201710379201A CN 107142534 B CN107142534 B CN 107142534B
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- molding room
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- 238000009987 spinning Methods 0.000 title claims abstract description 181
- 239000000243 solution Substances 0.000 claims abstract description 67
- 239000000835 fiber Substances 0.000 claims abstract description 65
- 238000000465 moulding Methods 0.000 claims abstract description 54
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 239000004745 nonwoven fabric Substances 0.000 claims description 41
- 238000004090 dissolution Methods 0.000 claims description 25
- 239000002904 solvent Substances 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 238000004804 winding Methods 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 2
- 229920001410 Microfiber Polymers 0.000 description 20
- 239000003658 microfiber Substances 0.000 description 20
- 229920002239 polyacrylonitrile Polymers 0.000 description 13
- 229920000642 polymer Polymers 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 241000209094 Oryza Species 0.000 description 11
- 235000007164 Oryza sativa Nutrition 0.000 description 11
- 239000004744 fabric Substances 0.000 description 11
- 235000009566 rice Nutrition 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000010041 electrostatic spinning Methods 0.000 description 3
- -1 polypropylene Polymers 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000002121 nanofiber Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000012814 acoustic material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
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- 229920000747 poly(lactic acid) Polymers 0.000 description 1
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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
- D01D5/12—Stretch-spinning methods
- D01D5/14—Stretch-spinning methods with flowing liquid or gaseous stretching media, e.g. solution-blowing
-
- 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
- D01D11/00—Other features of manufacture
-
- 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
- D01D5/04—Dry spinning methods
Abstract
The invention discloses a kind of solution jet spinning equipment, the spinning equipment includes feeding device, spinning die head, reception device, spinning manifold, airflow injection device and heating device, the spinning manifold includes setting gradually inlet air plenum from top to bottom, molding room and suction room, the inlet air plenum, it is interconnected between molding room and suction room, the heating device is between inlet air plenum and molding room, the reception device is between molding room and suction room, the spinning die head is located in molding room, several spinneret capillaries are equipped in the spinning die head, the spinning die head is obliquely installed, several spinneret capillaries in the spinning die head are equipped with angle with horizontal plane, the high pressure draught slenderizing formed when spinning solution is squeezed out through the spinneret capillary in spinning die head by airflow injection device, it is formed and is received in molding room Micrometer fibers.
Description
Technical field
The invention belongs to spinning equipment technical field more particularly to a kind of solution jet spinning equipment.
Background technique
Microfibre of receiving refers to diameter in 5 microns or less or even nanoscale superfine fibre.Since diameter is small, large specific surface area
The advantages that, microfibre of receiving is considered as a kind of high-performance, high added value fiber product, in filtering material, heat insulating material, oil suction material
The fields such as material, medical and health, battery separator and acoustic material are widely used, for receiving microfibre and by receiving microfibre system
At the demand deposited of non-woven cloth constantly increase.
Electrostatic spinning is one of the main path for preparing nanofiber at present, and core is the spinning solution or molten for making electrification
Body flow in the electric field with deformation, then the evaporation through solvent or the cooling of melt and solidify, obtain fibrous material；But it produces
It measures low, high equipment cost and limits electrostatic spinning technique and move towards the industrialization production from laboratory.Meltblown be realized commercialization,
The most manufacturing method for receiving microfiber nonwoven cloth of scale, there are many related patents technical literatures；Due to raw material melt
Mobile performance is more demanding, therefore meltblown is currently limited to adding for a few polymer such as polypropylene, polyester, polylactic acid
Work, and for most polymers such as polyacrylonitrile, Kynoar, cellulose, starch, chitosan etc. if because of fluidity of molten
The reasons such as poor, easy pyrolytic, non-thermal plasticity and can not process.
Solution jet spinning technology is a kind of novel micro nanometer rice fiber technology of preparing [patent No. that my laboratory is had by oneself
ZL201110041792.3], the technology utilization high-speed flow to spinning solution thread carry out it is ultra-fine stretching and make solvent volatilize and
Micro nanometer fiber is prepared, there is spinning efficiency more higher than electrostatic spinning.And spinning solution thread is due to by spinning spinning
The turbulent shear of box house High Speed Airflow Within acts on and is in three-dimensional crimp form and mutually tangles, this method processing flow
Short, simple process, condition is easy to control, and is produced on a large scale；The microfibre average diameter range of receiving of obtained non-woven cloth is
0.01-3 μm, less than the fibre diameter of conventional polypropylene melt-blow nonwoven, function admirable；Its polymer solution not limit
For processing object, existing melt blown technology can be overcome to the thermoplasticity of raw material and the requirement of high fluidity of molten, have and be generally applicable in
Property.
In recent years, solution jet spinning method used always single nozzle spinning equipment, and spinning moulding environment be it is open,
Throughput rate is extremely low, and spinning process is unstable, affects the molding of fiber to a certain extent, is not able to satisfy wanting for large-scale production
It asks.In consideration of it, industrialization production can more preferably be solved by providing one kind we developed a kind of solution jet spinning equipment
Technical solution.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of solution jet spinning equipment, which can be real
Existing multimode head synchronizes spinning, and between inlet air plenum and wind sucting chamber, the one-way gas flow that suction room and inlet air plenum are formed is passed through for molding room
It can accelerate the volatilization of solvent in spinning solution when overmolding room, and the nano micron fibre of formation is collected into reception device；
Spinning die head is obliquely installed simultaneously, so that the spinning solution thread and horizontal plane that squeeze out through spinning die head form angle, is increased single
To air-flow and spinning solution thread contact surface, it ensure that the volatilization of solvent is more thorough, so that fibre fineness is more uniform.
The technical proposal adopted by the invention to solve the above technical problems is that:
A kind of solution jet spinning equipment, the spinning equipment include feeding device, spinning die head and reception device, feature
Be, the spinning equipment further includes spinning manifold, airflow injection device and heating device, the spinning manifold include on to
Under set gradually inlet air plenum, molding room and suction room, be interconnected, institute between the inlet air plenum, molding room and suction room
Heating device is stated between inlet air plenum and molding room, the reception device is between molding room and suction room, the spinning
Die head is located in molding room, several spinneret capillaries is equipped in the spinning die head, the spinning die head is obliquely installed, described
Several spinneret capillaries in spinning die head form angle with horizontal plane, and spinning solution is through the spinneret capillary in spinning die head
The high pressure draught slenderizing formed when pipe squeezes out by airflow injection device, forms nano micron fibre in molding room, takes out simultaneously
The one-way gas flow that suction-chamber and inlet air plenum are formed accelerates the volatilization of solvent in spinning solution, and the nano micron fibre of formation is collected into
In reception device.
Preferably, the airflow injection device includes air accumulator, air compressor machine and air inlet pipe, the feeding device includes
Dissolution kettle, heater box and metering pump are equipped with solution strainer, are equipped in front of the molding room between the dissolution kettle and heater box
Observation window, the dissolution kettle are equipped with heating coil and agitating device.
Preferably, the spinning die head is equipped with feed opening and air inlet, the feed opening passes through metering pump and dissolution
Kettle be connected, several described spinneret capillaries are connected with feed opening, the spinning solution in the dissolution kettle pass through feed opening into
Enter spinning die head, squeezed out by spinneret capillary, when extrusion forms dynamic analysis of spinning, and the air inlet passes through air inlet pipe and air accumulator
It is connected, high pressure gas in the air accumulator enters spinning die head by air inlet, and when ejection forms high pressure draught, the high pressure
Dynamic analysis of spinning slenderizing is formed nano micron fibre by air-flow.
Preferably, the spinning die head is fixed in molding room by mobile device, the mobile device is front and back
Mobile device, the mobile device are equipped with fixing head, and the spinning die head is fixed on the mobile device by fixing head.
Preferably, the inlet air plenum is equipped with air inlet and lower air port, the lower air port face molding room, the leeward
Perforated plate is equipped at mouthful, the heating device is several heating rods, and the heating rod is located at below lower air port, the suction room
Interior to be equipped with wind chamber, the wind chamber upper opening, equipped with several air outlets, the air outlet passes through suction ventilator for the wind chamber lower section
It is connected with filter device, is provided with filter cotton at the air outlet.
Preferably, the reception device includes spool, motor, horizontal acceptance frame and the net on horizontal acceptance frame
Curtain, the wind chamber are located at below horizontal acceptance frame, and the spool is driven by motor and rotated, and the spool and motor are equipped with two
It is a, respectively symmetrically it is located at spinning manifold two sides, winding is equipped with non-woven fabrics between two spools, and it is tight to be located at the indoor non-woven fabrics of molding
Lace curtaining setting is pasted, by two rotating rollers, two rotating rollers are erected at horizontal acceptance frame both ends, the spool for the lace curtaining winding
Below rotating roller, pressure roller is equipped with above the lace curtaining, the non-woven fabrics passes through between pressure roller and lace curtaining, in molding room's shape
At nano micron fibre under the action of suction room, be collected on non-woven fabrics, under the drive of non-woven fabrics, winding collect rolling up
On axis.
Preferably, heater box and heating rod are electrically connected with protective switch.
Preferably, the spinning die head is equipped with several, several described spinning die heads uniformly form a line, each
Spinning die head is connected with feeding device, airflow injection device respectively.
Preferably, being arranged in parallel between several described spinneret capillaries.
Preferably, the angular range that several spinneret capillaries are formed with horizontal plane is 15 ° -60 °, optimal case
It is 45 °.
The present invention has the advantages that
1, the synchronous spinning of multimode head may be implemented, molding room is between inlet air plenum and wind sucting chamber, suction room and inlet air plenum
The one-way gas flow of formation can accelerate the volatilization of solvent in spinning solution when passing through molding room, and the nano micron fibre of formation is received
Collect in reception device.
2, in order to preferably by nano micron fibre collect on non-woven fabrics, we below lace curtaining be provided with wind chamber, and it
Preceding we use vacuum chamber, and relative to vacuum chamber, wind chamber equally may be implemented cohesion of the nano micron fibre on non-woven fabrics and collect,
And the advantages of wind chamber, is low for equipment requirements, cost is low, is easier to realize, is convenient for industrialization promotion, sets out under wind chamber
Air port ensure that the non-woven fabrics air draught uniformity at lace curtaining.
3, the nano micron fibre obtained in the present invention is collected on non-woven fabrics, under the drive of non-woven fabrics, winding
It collects on spool, after completing spinning, removes non-woven fabrics from spool, the later period according to actual needs can be micro- to receiving on non-woven fabrics
Rice fiber is stripped, and the non-woven fabrics in the present invention is arranged above lace curtaining, and lace curtaining is played a supporting role, and non-woven fabrics is as direct
Lace curtaining is received, advantage is that cost is relatively low convenient for arranging, saving, and non-woven fabrics is to breathe freely, to will not stop one-way gas flow
Flow downward.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is that (arrow is the flow direction of one-way gas flow to front view of the invention in figure, and dotted line is molding micro-nano fibre
Dimension).
Fig. 2 is left view of the invention.
Fig. 3 is attachment structure schematic diagram of the invention.
Fig. 4 is the flow direction of spinning solution.
The stereoscan photograph figure of the PAN nano micron fibre non-woven cloth prepared in Fig. 5 embodiment 2.
The stereoscan photograph figure of the PAN nano micron fibre non-woven cloth prepared in Fig. 6 embodiment 3.
The stereoscan photograph figure of the PAN nano micron fibre non-woven cloth prepared in Fig. 7 embodiment 4.
The stereoscan photograph figure of the PAN nano micron fibre non-woven cloth prepared in Fig. 8 embodiment 5.
Wherein: 1, inlet air plenum 2, molding room 3, suction room 4, heating device
5, reception device 6, spinning die head 7, air accumulator 8, air compressor machine
9, air inlet pipe 10, dissolution kettle 11, heater box 12, metering pump
13, solution strainer 14, observation window 15, heating coil 16, agitating device
17, air inlet pipe 18, mobile device 19, fixing head 20, air inlet
21, wind chamber 22, air outlet 23, suction ventilator 24, filter device
25, spool 26, motor 27, horizontal acceptance frame 28, lace curtaining
29, non-woven fabrics 30, rotating roller 31, pressure roller 32, lower air port 33, perforated plate
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Embodiment 1
A kind of solution jet spinning equipment, the spinning equipment include feeding device, spinning die head and reception device, the spinning
Silk equipment further includes spinning manifold, airflow injection device and heating device, and the spinning manifold includes setting gradually from top to bottom
Inlet air plenum 1, molding room 2 and suction room 3 are interconnected, the heating dress between the inlet air plenum, molding room and suction room
4 are set between inlet air plenum and molding room, the reception device 5 is between molding room and suction room, the spinning die head 6
In in molding room, several spinneret capillaries (not marking spinneret capillary in figure), the spinneret are equipped in the spinning die head
The quantity of capillary is arranged in parallel between several described spinneret capillaries between 80-140.The spinning
Die head 6 is obliquely installed, several spinneret capillaries in the spinning die head form angle with horizontal plane, and angle is preferably
45 °, the high pressure draught formed when spinning solution is squeezed out through the spinneret capillary in spinning die head by airflow injection device stretches thin
Change, forms nano micron fibre in molding room, while molten in suction room and the one-way gas flow acceleration spinning solution of inlet air plenum formation
The volatilization of agent, and the nano micron fibre of formation is collected into reception device.
The airflow injection device includes air accumulator 7, air compressor machine 8 and air inlet pipe 9, and the feeding device includes dissolution kettle
10, heater box 11 and metering pump 12 are equipped with solution strainer 13, the dissolution kettle 10 between the dissolution kettle 10 and heater box 11
Positioned at 2 rear of molding room, observation window 14 is equipped in front of the molding room 2, the dissolution kettle 10 is equipped with heating coil 15 and stirs
Mix device 16.
Several described spinning die heads uniformly form a line, and each spinning die head is filled with feeding device, jet-impingement respectively
Set connected, then it is independent feed liquor, independent air inlet that when more spinning die heads are arranged, each die head, which works independently, mutually not
Interference can be generated, ensure that the independence of each spinning die head work；The spinning die head 6 is equipped with feed opening and air inlet, institute
It states feed opening to be connected by metering pump 12 with dissolution kettle 10, several described spinneret capillaries are connected with feed opening, described molten
Spinning solution in solution kettle enters spinning die head by feed opening, is squeezed out by spinneret capillary, and when extrusion forms dynamic analysis of spinning,
The air inlet is connected by air inlet pipe 17 with air accumulator 7, and the high pressure gas in the air accumulator enters spinning by air inlet
Die head, when ejection, form high pressure draught, and dynamic analysis of spinning slenderizing is formed nano micron fibre by the high pressure draught.
The spinning die head 6 is fixed in molding Room 2 by mobile device 18, and the mobile device 18 is to be moved forward and backward dress
It sets, the mobile device 18 is equipped with fixing head 19, and the spinning die head 6 is fixed in mobile device 18 by fixing head 19.
The inlet air plenum 1 is equipped with air inlet 20 and lower air port 32, the lower 32 face molding room 2 of air port, the lower air port
Perforated plate 33 is equipped at 32, the setting of perforated plate, which ensure that into molding indoor " wind ", has good uniformity, described to add
Thermal 4 is several heating rods, and the heating rod is located at lower 32 lower section of air port, is equipped with wind chamber 21 in the suction room, described
21 upper opening of wind chamber, several air outlets 22 are equipped with below the wind chamber 21, and the air outlet 22 passes through suction ventilator 23 and mistake
It filters device 24 to be connected, is provided with filter cotton at the air outlet 22, the setting of the filter cotton has carried out tentatively the wind pumped out
Filtering, enter back into filter device and carry out profound filtering, to ensure that the feature of environmental protection of discharge.
The reception device includes spool 25, motor 26, horizontal acceptance frame 27 and the lace curtaining on horizontal acceptance frame 27
28, the wind chamber 21 is located at horizontal 27 lower section of acceptance frame, and the spool 25 drives rotation, the spool 25 and electricity by motor 26
There are two machine 26 is all provided with, be respectively symmetrically located at spinning manifold two sides, winding is equipped with non-woven fabrics 29 between two spools 25, be located at
The indoor non-woven fabrics 29 of type is close to lace curtaining 28 and is arranged, and the winding of lace curtaining 28 passes through two rotating rollers 30, two 30 framves of rotating roller
Horizontal 27 both ends of acceptance frame are located at, the spool 25 is located at 30 lower section of rotating roller, is equipped with pressure roller 31 above the lace curtaining 28, described
Non-woven fabrics 29 passes through between pressure roller 31 and lace curtaining 28, in the nano micron fibre that molding room is formed under the action of suction room, quilt
It collects on non-woven fabrics, under the drive of non-woven fabrics, winding is collected on spool.
The heater box and heating rod are electrically connected with protective switch.
Molding room's length of the present embodiment is between 1.2-1.5 meters, and width is between 1-1.2 meters, highly at 1.3-1.5 meters
Between, but not limited to this dimension data can accordingly adjust the size of molding room, spinning die head according to the quantity of spinning die head
Positioned at molding room upper left side, since spinning die head is obliquely installed, then the spinneret capillary on spinning die head and horizontal plane, which are formed, is pressed from both sides
Angle is also then that inclination sprays by the spinning solution that spinneret capillary squeezes out on spinning die head, in the present embodiment, spinning die head
The upper left side of molding room is set, so that the nano micron fibre formed by high pressure draught slenderizing is flowed from the upper left side of molding room
The right side of horizontal acceptance frame is moved, nano micron fibre is banking motion in forming process, is had with horizontal acceptance frame certain
Angle forms indoor atmosphere wind, and the air outlet and under the action of suction ventilator in lower section, is the one-way gas flow of vertical downward movement,
Spinning die head is all vertically arranged before, and nano micron fibre is vertical downward movement in forming process, forms indoor atmosphere
Wind is consistent with the direction of motion of nano micron fibre, cannot achieve atmosphere wind and contacts with the effective of nano micron fibre, in the present invention,
The direction of motion of nano micron fibre and the atmosphere wind of one-way gas flow have certain angle, and beneficial effect is: in a limited space
Interior increase nano micron fibre forming stroke guarantees that solvent volatilizees more thorough in spinning solution；The movement side of nano micron fibre
There is certain angle to the atmosphere wind with one-way gas flow, increases the contact surface of nano micron fibre and one-way gas flow, on the one hand may be used
So that in spinning solution solvent volatilize more thoroughly, be on the other hand so that formed nano micron fibre have preferably
Evenness.Similarly, spinning die head also can be set in the upper right side of molding room.
The heating of two steps has been carried out to spinning solution, has been the heating of the heating coil of dissolution kettle first, accelerates the molten of solute
Solution, improves the uniformity of spinning solution；It is to be heated again when spinning solution flows through heater box again, is added by setting
Hot tank considerably increases spinning solution concentration, improves spinning speed to a certain extent, while obtained fibre fineness is more equal
It is even.
The high pressure draught slenderizing formed when spinning solution is squeezed out through spinning die head by airflow injection device, in molding room
Interior formation nano micron fibre, while suction room and the one-way gas flow of inlet air plenum formation accelerate the volatilization of solvent in spinning solution, and
The nano micron fibre of formation is collected into reception device.Two " wind " being arranged in this equipment, are high pressure draught and list respectively
To air-flow, high pressure draught is sprayed from die head, by the spinning solution slenderizing of synchronous extruding spinning die head；One-way gas flow is forming
Indoor formation atmosphere wind accelerates the volatilization of solvent in spinning solution, guarantees the uniformity of shaping fiber, further increase fiber
Fineness, and the nano micron fibre of formation is collected into reception device；The two " wind " can all heat, high pressure draught
Heating is realized in heating when it flows through heater (not marking in figure), and the heating of one-way gas flow is realized when it flows through heating rod to be added
Heat, preliminary temperature can determine that actual temp is needed according to multiple Spinning according to the volatility of spinning solution solvent for use
To determine.Heater and heating rod are electrically connected with protective switch, and when not having air-flow to pass through, protective switch can make heater
Stop heating work with heating rod, ensure that safety.
It is all that the nano micron fibre of formation is deposited to receipts in the prior art due to the fineness problem of nano micron fibre
Collect on lace curtaining, the later period is removed again, and most collection lace curtaining material is masking foil, such collects lace curtaining higher cost, no
It is easy to maintain, be not suitable for applying when industrialization production, therefore, the nano micron fibre obtained in the present invention is to be collected into non-woven fabrics
On, under the drive of non-woven fabrics, winding is collected on spool, after completing spinning, remove non-woven fabrics from spool, the later period according to
Actual needs can strip the nano micron fibre on non-woven fabrics, and the non-woven fabrics in the present invention is arranged above lace curtaining, lace curtaining
It plays a supporting role, non-woven fabrics is that cost is relatively low, and non-woven fabrics is convenient for arranging, saving as lace curtaining, advantage is directly received
Ventilative, so that flowing downward for one-way gas flow will not be stopped；In order to which preferably nano micron fibre is collected on non-woven fabrics, I
Below lace curtaining be provided with wind chamber, and before we use vacuum chamber, relative to vacuum chamber, wind chamber equally may be implemented to receive micro-
Cohesion of the rice fiber on non-woven fabrics is collected, and the advantages of wind chamber is low for equipment requirements, and cost is low, is easier to realize,
Convenient for industrialization promotion, air outlet is divided into wind chamber, ensure that the non-woven fabrics air draught uniformity at lace curtaining, it can be according to industrialization
Demand, at any time to molding chamber size be adjusted, can guarantee the uniformity of the non-woven fabrics air draught at lace curtaining.
One spinning die head is installed, spinneret number of capillaries is 120, by this equipment, our spinning speed from
5 Grams Per Hours of open single nozzle before, have been increased to 550 Grams Per Hours, increase the quantity of spinning die head, and yield is accordingly at double
Increase.
Embodiment 2
One spinning die head is installed, carries out spinning through the invention, by polymer poly acrylonitrile (PAN) with mass fraction
15% ratio is dissolved in n,N-dimethylacetamide, is stirred 30-60 minutes and is uniformly mixed in dissolution kettle, it is molten that spinning is made
Liquid, spinning parameter are as follows: the drawing-off wind pressure for being used to form high pressure draught is 2.6bar, and the temperature of the high pressure draught is 45 DEG C, spinning
Speed 207ml/h, the air draught wind pressure for being used to form one-way gas flow is 4413.6pa, and the temperature of the one-way gas flow is room temperature, spinning
Dissolution kettle temperature is kept for 40 DEG C in the process, and high pressure draught stretch spinning solution thread, solvent volatilizees to form nano micron fibre, receive micro-
Rice fiber is collected on non-woven fabrics under high speed jet-stream wind and suction airstream effect, that is, polymer nano microfiber nonwoven is made
Cloth.
Microfibre is received using SEM radiographic measurement is obtained, and gained receives the diameter of microfibre and is concentrated mainly on 350-450 and receives
Between rice, fibre fineness is more uniform.
Embodiment 3
One spinning die head is installed, carries out spinning through the invention, by polymer poly acrylonitrile (PAN) with mass fraction
20% ratio is dissolved in n,N-dimethylacetamide, is stirred 30-60 minutes and is uniformly mixed in dissolution kettle, it is molten that spinning is made
Liquid, spinning parameter are as follows: the drawing-off wind pressure for being used to form high pressure draught is 2.6bar, and the temperature of the high pressure draught is 45 DEG C, spinning
Speed 276ml/h, the air draught wind pressure for being used to form one-way gas flow is 4413.6pa, and the temperature of the one-way gas flow is room temperature, spinning
Dissolution kettle temperature is kept for 40 DEG C in the process, and high pressure draught stretch spinning solution thread, solvent volatilizees to form nano micron fibre, receive micro-
Rice fiber is collected on non-woven fabrics under high speed jet-stream wind and suction airstream effect, that is, polymer nano microfiber nonwoven is made
Cloth.
Microfibre is received using SEM radiographic measurement is obtained, and gained receives the diameter of microfibre and is concentrated mainly on 700-800 and receives
Between rice, fibre fineness is more uniform.
Embodiment 4
One spinning die head is installed, carries out spinning through the invention, by polymer poly acrylonitrile (PAN) with mass fraction
15% ratio is dissolved in n,N-dimethylacetamide, is stirred 30-60 minutes and is uniformly mixed in dissolution kettle, it is molten that spinning is made
Liquid, spinning parameter are as follows: the drawing-off wind pressure for being used to form high pressure draught is 2.8bar, and the temperature of the high pressure draught is 45 DEG C, spinning
Speed 207ml/h, the air draught wind pressure for being used to form one-way gas flow is 4413.6pa, and the temperature of the one-way gas flow is room temperature, spinning
Dissolution kettle temperature is kept for 40 DEG C in the process, and high pressure draught stretch spinning solution thread, solvent volatilizees to form nano micron fibre, receive micro-
Rice fiber is collected on non-woven fabrics under high speed jet-stream wind and suction airstream effect, that is, polymer nano microfiber nonwoven is made
Cloth.
Microfibre is received using SEM radiographic measurement is obtained, and gained receives the diameter of microfibre and is concentrated mainly on 250-350 and receives
Between rice, fibre fineness is more uniform.
Embodiment 5
One spinning die head is installed, carries out spinning through the invention, by polymer poly acrylonitrile (PAN) with mass fraction
20% ratio is dissolved in n,N-dimethylacetamide, is stirred 30-60 minutes and is uniformly mixed in dissolution kettle, it is molten that spinning is made
Liquid, spinning parameter are as follows: the drawing-off wind pressure for being used to form high pressure draught is 3.0bar, and the temperature of the high pressure draught is 45 DEG C, spinning
Speed 276ml/h, the air draught wind pressure for being used to form one-way gas flow is 4413.6pa, and the temperature of the one-way gas flow is room temperature, spinning
Dissolution kettle temperature is kept for 40 DEG C in the process, and high pressure draught stretch spinning solution thread, solvent volatilizees to form nano micron fibre, receive micro-
Rice fiber is collected on non-woven fabrics under high speed jet-stream wind and suction airstream effect, that is, polymer nano microfiber nonwoven is made
Cloth.
Microfibre is received using SEM radiographic measurement is obtained, and gained receives the diameter of microfibre and is concentrated mainly on 550-700 and receives
Between rice, fibre fineness is more uniform.
In the above description, preparation method of the present invention determines various listed characteristic ginsengs using following test method
Number.
1. spinning solution concentration: weighing polymer quality and solvent quality respectively with electronic balance, calculate polymer quality
Account for the percentage of gross mass.
2. receiving microfiber diameter: being observed, measured by scanning electron microscope, for each microfiber article sample of receiving
Product, the diameter for measuring 100 fibers provide its average diameter range.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of solution jet spinning equipment, the spinning equipment include feeding device, spinning die head and reception device, feature exists
In the spinning equipment further includes spinning manifold, airflow injection device and heating device, and the spinning manifold includes from top to bottom
Set gradually inlet air plenum, molding room and suction room, be between the inlet air plenum, molding room and suction room it is interconnected, it is described
Heating device is between inlet air plenum and molding room, and the reception device is between molding room and suction room, the spinning mould
Head is located in molding room, several spinneret capillaries are equipped in the spinning die head, and the spinning die head is obliquely installed, the spinning
Several spinneret capillaries in silk die head form angle with horizontal plane, and spinning solution is through the spinneret capillary in spinning die head
The high pressure draught slenderizing formed when extrusion by airflow injection device, forms nano micron fibre in molding room, aspirates simultaneously
The one-way gas flow that room and inlet air plenum are formed accelerates the volatilization of solvent in spinning solution, and the nano micron fibre of formation is collected into and is connect
On receiving apparatus.
2. a kind of solution jet spinning equipment according to claim 1, which is characterized in that the airflow injection device includes
Air accumulator, air compressor machine and air inlet pipe, the feeding device include dissolution kettle, heater box and metering pump, the dissolution kettle and heating
It is equipped with solution strainer between case, observation window is equipped in front of the molding room, the dissolution kettle is equipped with heating coil and stirring
Device.
3. a kind of solution jet spinning equipment according to claim 2, which is characterized in that the spinning die head is equipped with charging
Hole and air inlet, the feed opening are connected by metering pump with dissolution kettle, several described spinneret capillaries are connected with feed opening
Logical, the spinning solution in the dissolution kettle enters spinning die head by feed opening, is squeezed out by spinneret capillary, and when extrusion is formed
Dynamic analysis of spinning, the air inlet are connected by air inlet pipe with air accumulator, the high pressure gas in the air accumulator pass through air inlet into
Enter spinning die head, when ejection forms high pressure draught, and dynamic analysis of spinning slenderizing is formed nano micron fibre by the high pressure draught.
4. a kind of solution jet spinning equipment according to claim 1, which is characterized in that the spinning die head passes through movement
Device is fixed in molding room, and the mobile device is to be moved forward and backward device, and the mobile device is equipped with fixing head, the spinning
Silk die head is fixed on the mobile device by fixing head.
5. a kind of solution jet spinning equipment according to claim 2, which is characterized in that the inlet air plenum is equipped with air inlet
With lower air port, the lower air port face molding room is equipped with perforated plate at the lower air port, and the heating device is that several are heated
Stick, the heating rod are located at below lower air port, are equipped with wind chamber in the suction room, the wind chamber upper opening, under the wind chamber
Side is equipped with several air outlets, and the air outlet is connected by suction ventilator with filter device, and filtering is provided at the air outlet
Cotton.
6. a kind of solution jet spinning equipment according to claim 5, which is characterized in that the reception device includes volume
Axis, motor, horizontal acceptance frame and the lace curtaining on horizontal acceptance frame, the wind chamber are located at below horizontal acceptance frame, the volume
Axis is driven by motor and is rotated, and there are two the spool and motor are all provided with, is respectively symmetrically located at spinning manifold two sides, two spools
Between winding be equipped with non-woven fabrics, be located at and form indoor non-woven fabrics and be close to lace curtaining setting, the lace curtaining winding passes through two rotations
Roller, two rotating rollers are erected at horizontal acceptance frame both ends, and the spool is located at below rotating roller, and pressure is equipped with above the lace curtaining
Roller, the non-woven fabrics pass through between pressure roller and lace curtaining, in the nano micron fibre that molding room is formed under the action of suction room, quilt
It collects on non-woven fabrics, under the drive of non-woven fabrics, winding is collected on spool.
7. a kind of solution jet spinning equipment according to claim 5, which is characterized in that heater box and heating rod with guarantor
Shield switch electrical connection.
8. a kind of solution jet spinning equipment according to claim 1, which is characterized in that the spinning die head is equipped with several
A, several described spinning die heads uniformly form a line, each spinning die head respectively with feeding device, airflow injection device phase
Even.
9. a kind of solution jet spinning equipment according to claim 1, which is characterized in that several described spinneret capillaries
Between be arranged in parallel.
10. a kind of solution jet spinning equipment according to claim 1, which is characterized in that several spinneret capillaries are equal
It is 15 ° -60 ° with the angular range that horizontal plane is formed.
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| CN108396390B (en) * | 2018-03-26 | 2020-04-10 | 深圳维度新材料有限公司 | Preparation device of nano material |
| CN108866668B (en) * | 2018-05-28 | 2021-02-19 | 泽塔纳米科技（苏州）有限公司 | Nano flame-retardant fiber and preparation method thereof |
| CN109137131B (en) * | 2018-09-04 | 2021-08-06 | 江苏科来材料科技有限公司 | Solution spraying method modified antibacterial degradable nanofiber and application thereof in air filtration |
| CN109234919A (en) * | 2018-10-24 | 2019-01-18 | 南京捷纳思新材料有限公司 | A kind of gas blowout microfluidic device being used to prepare nanofiber and technique |
| CN109537068B (en) * | 2018-12-19 | 2021-08-06 | 上海固甲新材料科技有限公司 | Liquid jet spinning device |
| CN110592728B (en) * | 2019-10-09 | 2020-12-01 | 中国科学院山西煤炭化学研究所 | Method for preparing polyacrylonitrile-based carbon fiber precursor by dry-wet method |
| CN112090289B (en) * | 2020-09-15 | 2022-07-05 | 苏州足迹智能制造有限公司 | Device and process for preparing hollow fiber membrane by spinning hollow fiber yarns |
| CN112411020A (en) * | 2020-11-24 | 2021-02-26 | 浙江熔聚装备科技有限公司 | Energy-saving device and non-woven fabric manufacturing equipment |
| CN113802193A (en) * | 2021-10-27 | 2021-12-17 | 江南大学 | Solution jet spinning device and application thereof in preparation of nanofiber membrane |
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| US8211353B2 (en) * | 2008-09-05 | 2012-07-03 | E. I. Du Pont De Nemours And Company | Fiber spinning process using a weakly interacting polymer |
| CN202131466U (en) * | 2011-02-25 | 2012-02-01 | 谢维 | Equipment for continuous and bulk production of electrospun nano-fiber membrane |
| JP2015132030A (en) * | 2014-01-15 | 2015-07-23 | 株式会社化繊ノズル製作所 | Nonwoven fabric manufacturing device |
| CN104362279B (en) * | 2014-11-17 | 2017-01-04 | 天津工业大学 | A kind of preparation method of lithium ion battery superfine fibre barrier film |
| CN106222762A (en) * | 2016-04-14 | 2016-12-14 | 浙江海洋学院 | Nano fiber electrostatic spinning equipment and using method thereof |
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Effective date of registration: 20231007 Address after: Building 4, No. 980 Pinghai Road, Lingang New Area, China (Shanghai) Pilot Free Trade Zone, Pudong New Area, Shanghai, 200000 Patentee after: Shanghai Rongrong New Material Technology Co.,Ltd. Address before: No. 399, Binshui West Road, Xiqing District, Tianjin Patentee before: TIANJIN POLYTECHNIC University |
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