CN105951195B - A kind of microgravity suspension centrifugal spinning method - Google Patents
A kind of microgravity suspension centrifugal spinning method Download PDFInfo
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- CN105951195B CN105951195B CN201610477733.3A CN201610477733A CN105951195B CN 105951195 B CN105951195 B CN 105951195B CN 201610477733 A CN201610477733 A CN 201610477733A CN 105951195 B CN105951195 B CN 105951195B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/18—Formation of filaments, threads, or the like by means of rotating spinnerets
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Abstract
The present invention relates to a kind of microgravity suspension centrifugal spinning method, belong to textile technology field.The microgravity suspension centrifugal spinning method of the present invention sets fiber collecting device and the first temperature control plate in front of centrifugal spinning tank, at centrifugal spinning tank rear, primary air generator and the second temperature control plate are set, secondary streamses generator is set below the second temperature control plate, negative pressure generator is set below fiber collecting device, make centrifugal spinning tank to the centrifugal spinning gas channel that parabolic path is formed between fiber collecting device, the jet that centrifugal spinning tank ejects is run in centrifugal spinning gas channel in microgravity suspended state to fiber collecting device direction, continuous filament yarn is gradually solidified under the heat radiation effect of the first temperature control plate and the second temperature control plate, it is final uniform, continuously, spread over incessantly on fiber collecting device, form continuous filament yarn net.The method spinning efficiency of the present invention is high, equipment is simple, easy to operate, raw material are extensive.
Description
Technical field
The present invention relates to a kind of microgravity suspension centrifugal spinning method, belong to textile technology field.
Background technology
Its principle is spun in centrifugation：Spinning solution or melt are thrown away into nozzle using centrifugal force caused by high speed rotation spinning device
And initial jets are produced, subsequent drawn and it is solidified to form superfine fibre.
The forming process of fiber can be generally divided into following three phases in centrifugal spinning：The generation in initial jets source, penetrate
The drawing-off of stream and solidification and three processes of collection of fiber.Wherein the first stage determines that can spinning be normally carried out, and is that centrifugation is spun
The primary premise of silk；Second stage determines the pattern and performance of fiber, is a stage the most key in centrifugal spinning；3rd
Stage is mainly responsible for the collection of fiber, is to determine that can centrifugal spinning carry out a key factor of industrial applications.Above-mentioned three
The individual stage influences each other, the final pattern and performance for determining fiber.1991, United States Patent (USP) US5075063 disclosed one
Kind carries out the device of melt spinning using centrifugal force, and the equipment is with continuous feed system, raw materials melt hybrid system and height
The professional centrifugal box-spinning machine of speed centrifugation spinning device.1998, Dutch Akzo Novel N.V. Corp disclosed a kind of solution in China
The patent CN1177385A of method centrifugal spinning equipment, the equipment feature are that coagulator flows in the surface circulation of fiber collector,
But party's law limitation is that the requirement of spinning solution is high, product variety is single and fiber strength is low.Into 21 century, with the U.S.
The research of University of Texas Pan American branch school Karen Lozano team is more deep, and they were in the patent applied in 2009
US20090280325A1 discloses different types of device for spinning, including the spinning disc with four-way drainage trough, different spray nozzles
The syringe of shape and by the use of metallic grid as spinneret orifice of filator etc., utilizes the device, the success of KarenLonazo team
Realize to such as：The conventional materials such as PAN, PEO, PS and ABS carry out trying spinning and have obtained fibre of the diameter in 1 microns
Dimension.At present in the U.S., except the team that the Karen Lozano in texas,U.S university Pan American branch school are led is resonable to centrifugal spinning
It is outer by upper research, the Fiberio companies cooperated with Karen Lozano, Forcespinning trade marks are registered,
Start to build the first set centrifugal spinning production line in the world, its production efficiency has exceeded other nanofibers and prepared skill far away
Art, the centrifugal spinning equipment of the said firm's production are also to represent the highest level that industrialization is spun in centrifugation, wherein Fiberio systems at present
Standby PA6 nanofibers, diameter are distributed as 110 rans, while successfully to such as：Polyacrylonitrile (PAN), gather oneself
Lactone (PCL), polyvinylidene fluoride (PVDF), polyvinylpyrrolidone (PVP), polybutylene terephthalate (PBT), poly- third
Alkene (PP), PLA (PLA), tin-doped indium oxide (ITO), titanium dioxide (TiO2), silica (SiO2), zinc oxide (ZnO),
Zirconium dioxide (ZrO2), barium titanate (BaTiO2), aluminum oxide (Al2O3) etc. carried out centrifugal spinning, but basis
For Forcespinning technologies from existing documents and materials, its fiber prepared is short fibre.
Filamentation process is spun according to centrifugation, in order to alleviate influence of the rough air to jet drawing process, V.R.Gori Dev
With S.Ramakrishna etc., it have developed a kind of enclosed centrifugal spinning device.The characteristics of device is that collector is arranged on circle
Immediately below cylindricality spinning device, nozzle side is provided with a flow generator, and whole device uses the distribution form of " up-down structure ",
By given spinning solution by being thrown away in nozzle, then caused fiber winds and forms level step by step in the underface of spinning device
Structure, then, it will stack gradually and realize that tunica fibrosa winding is collected.It is using flow generator that " tangential " air-flow near nozzle is strong
" radial direction " air-flow is made.In practice, because the air pressure of central area is less than the air pressure in outside, in nozzle faint sinking formed below
Air-flow, further improve the collection efficiency of fiber；In addition this " radial direction down draft " will effectively can wrap on nozzle
The fabric thrashing twined so that the fiber of floating is not easy to be winding on spinning device, and this method is not easy to produce compared with other method
(fiber of random distribution is wound and is wrapped with a large amount of fibers in its side wall raw obstructing problem by rotation spinning device, easily causes nozzle
Clogging).The collection system closed in addition causes device to be isolated with external environment condition, effectively prevent the dry of external air flow
Disturb, be advantageous to the generation of the humiture of inside.This method prepare distribution of fiber diameters more concentrate, the degree of orientation of fiber very
It is high and be not likely to produce spray nozzle clogging phenomenon, the spinning to some noxious materials, improve security.But the device is not
Foot is that yield is relatively low, the thinking still collected on collection mode along annular, although the tunica fibrosa prepared is to air-flow
Influence is effectively reduced, but larger difficulty in terms of mass preparation still be present.Almost at the same time,
S.Mahalingam and Mohan Edirisinghe propose the preparation method of centrifugal flow superfine fibre, and this method depends on
The spinning device of high pressure nitrogen and high speed rotation inside spinning device.Its spinning process is more closely similar to traditional melt-blown, unlike
The former produces jet using centrifugal force, and the latter produces elongate fluid using screw extruder and measuring pump.Compared to conventional centrifugal
Spinning process, air drag are reinforced to the drawing effect of jet, and the level of stretch of jet experience is far above conventional centrifugal spinning
Method.Because the cylindrical spinning device of the device is fitted without " flow generator ", thus during actual spinning, generate fiber roll
The phenomenon being wound on spinning device, but because high pressure nitrogen air-flow at nozzle be present so that the tunica fibrosa of looping is not by nozzle
Covering, thus without generation obstructing problem.This method has the advantages that yield is high, and fibre diameter is thin and is easy to mass production.
It is limited in that the device based on this method is excessively complicated, the sealing between high pressure nitrogen and the at a high speed spinning device of rotation needs to set
Count complicated seal structural part；In addition powerful air-flow dispels fiber, is unfavorable for disposable film forming, therefore its product also needs to
Certain post processing could realize the preparation of nano fibrous membrane.
Basically, two key issues that puzzlement centrifugal spinning technology further develops at present, it is respectively：Fiber
The continuous effective generation collected with fiber morphology.In practice, above-mentioned two problems are highly dependent that collection mode is to jet again
Movement locus and loading process have a major impact, the large-scale application for the centrifugal spinning that particularly looks to the future, cause tradition
Annular collection method and do not meet the demand of following centrifugal spinning technology development.The problem of on this respect, have been obtained for
The attention of numerous researchers.In this context, the centrifugal spinning technology based on electrostatic collection becomes one of people recently
Study hotspot, concrete principle are as follows：The loading process of jet is intervened by electrostatic force, not only changes the motion side of jet
To the drawing process for also optimizing jet simultaneously.It is that centrifugal spinning technology is brought the advantage that by this principle：Solve from
The continuous collection problem of fiber in heart spinning, the stream condition for improving spinning device periphery while improve the pattern and property of fiber
Energy.But because electrostatic is present, the centrifugal spinning technology based on electrostatic collection is caused the shortcomings such as power consumption is high, security is low to be present.
In summary, based on annular collect centrifugation spin first by fibre spinning in annular spread around centrifugal spinning tank
Receive on pillar, then be collected through air-flow, be a kind of centrifugal spinning method of two-step method, and the fiber obtained is discontinuous
Short fibre, efficiency are low；The fiber that centrifugal spinning method based on electrostatic collection obtains is still discontinuous, and whole process is with high pressure
Electrostatic, cause power consumption high, safety coefficient is low, and efficiency is low.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of microgravity suspension centrifugal spinning method.
To achieve these goals, technical solution of the invention is,
A kind of microgravity suspension centrifugal spinning method, i.e., set fiber collecting device, fiber in front of centrifugal spinning tank
Collection device is the conveying mechanism of guide roll type, the plane where the leader of fiber collecting device and the bottom of centrifugal spinning tank it
Between angle be 5-40 °, the air line distance between the central point of leader and bottom centre's point of centrifugal spinning tank is 50-
150cm, the lower section of leader set negative pressure generator, and the inlet scoop of negative pressure generator and the lower surface of leader are oppositely arranged,
The distance between inlet scoop and the lower surface of leader are 1cm, and the air quantity of negative pressure generator is 200-500m3/ h, spun in centrifugation
The first temperature control plate that radian is 0.04-0.08rad is set between silk tank and fiber collecting device, and the lower surface of the first temperature control plate is set
Put and be parallel to each other and equally distributed heater, the both ends of the first temperature control plate are respectively higher than centrifugal spinning tank and fiber collecting device
Leader upper surface, centrifugal spinning tank rear set primary air generator, primary air generator be provided with it is horizontally arranged
Air outlet, the air outlet of primary air generator is provided with master towards fiber collecting device at the air outlet of primary air generator
Wind direction adjusting plate, the central point of the air outlet of primary air generator and the bottom of centrifugal spinning tank are in same level, main gas
Air line distance between the central point of the air outlet of flow-generator and bottom centre's point of centrifugal spinning tank is 50-200cm, main gas
The air quantity of flow-generator is 200-500m3/ h, the second temperature control plate, the second temperature are set between centrifugal spinning tank and primary air generator
The lower surface setting of control plate is parallel to each other and equally distributed heater, the both ends of the second temperature control plate are respectively higher than centrifugal spinning tank
With primary air generator, secondary streamses generator is set in the lower section of the second temperature control plate, secondary streamses generator is provided with horizontally arranged
Air outlet, the lower surface of air outlet and the second temperature control plate is oppositely arranged, and secondary wind direction adjusting plate, secondary streamses are provided with air outlet
The central point of the air outlet of generator is 100-150cm with the air line distance of centrifugal spinning pot bottom central point, and secondary streamses occur
The air quantity of device is 200-500m3/ h, during centrifugal spinning, by adjust primary air generator and secondary streamses generator air quantity and
The angle of prevailing wind direction adjustable plate and secondary wind direction adjusting plate forms centrifugal spinning gas channel, is injected by device for storing liquid through infusion device
Spinning solution to centrifugal spinning tank under the action of the centrifugal force projects to form jet from the spinneret orifice of centrifugal spinning tank, and is spun in centrifugation
Silk gas channel in run forward in microgravity suspended state, the second temperature control plate and the first temperature control plate heat radiation act under by
Continuous filament yarn is gradually solidified into, in the presence of negative pressure generator negative pressure, the continuous filament yarn that is suspended in centrifugal spinning gas channel
To be fallen in the continuous continual gas channel from centrifugal spinning in parabolical track, operating leader is finally spread over
Upper surface, form continuous filament yarn net.
Vertical range between one end and centrifugal spinning tank top of the first described temperature control plate is 1-3cm, the first temperature control
Vertical range between the top of the other end of plate and the leader of fiber collecting device is 1-5cm.
Vertical range between the second described temperature control plate and centrifugal spinning tank top is 1-3cm, the second temperature control plate and master
Vertical range at the top of flow generator is 1-5cm.
The air outlet of described primary air generator, the air outlet of secondary streamses generator, the first temperature control plate and the second temperature control
The width of plate is consistent.
The width of the first described temperature control plate is more than the width of leader.
As a result of above technical scheme, technical characterstic of the invention is：
Compared with using traditional the centrifugal spinning method of annular collection and the centrifugal spinning method based on electrostatic collection, this
Patent of invention is mainly realized by gas channel carries out continuous continual collection to centrifugal spinning fiber, and the fiber obtained is
Continuous filament yarn.Primary air generator produces the leader level or the horizontal primary air to advance downwards to fiber collecting device, should
Air-flow can promote centrifugal spinning fiber level or level to move downwardly in the leader of fiber collecting device, and secondary streamses occur
Device produces the secondary streamses advanced up to the leader level of fiber collecting device, and the air-flow, which primarily serves, weakens centrifugal spinning fibre
Tie up the Action of Gravity Field that is subject to, make that it is subject to hang down it is downward make a concerted effort for the 10-20% of its gravity, the negative pressure hair below leader
Raw device mainly obtains negative-pressure air-flow, primary air and secondary streamses is collected to leader upper surface, plays and collects centrifugal spinning fiber
Effect.The gravity being subject to the wind-force of primary air, secondary streamses and negative-pressure air-flow with direction and with reference to centrifugal spinning jet is carried out
Mechanics decomposes and analysis, and with this change primary air generator, secondary streamses generator and negative pressure generator and centrifugal spinning tank it
Between position relationship, adjust the air quantity and wind direction of primary air generator and secondary streamses generator, the wind of the negative pressure generator of adjustment
Amount, the centrifugal spinning gas channel of parabolic path can be formed in the space of centrifugal spinning tank to leader upper surface, and should
Parabolic path can be adjusted, to control the morphosis of centrifugal spinning fiber and size.Before centrifugal spinning gas channel
When proceeding to the leader upper surface of fiber collecting device, the negative pressure of negative pressure generator is by air-flow by absorbing and turning on away.
During centrifugal spinning, the spinning solution for being injected into centrifugal spinning tank through infusion device by device for storing liquid is spun from centrifugation under the action of the centrifugal force
The spinneret orifice of silk tank projects to form jet, in centrifugal spinning gas channel, primary air wind-force, secondary streamses wind-force and gravity it is comprehensive
Cooperation with make jet with eccentric circular rotation status in centrifugal spinning gas channel in microgravity suspended state to leader side
To traveling, in the presence of the first temperature control plate and the second temperature control plate, jet is set to be solidified into continuous filament yarn by heat radiation, it is continuous long
Silk keeps eccentric circular rotation status and in the presence of negative pressure generator negative pressure, with parabolical track it is continuous it is continual from
Fallen in centrifugal spinning gas channel, finally spread over the upper surface of operating leader, form continuous filament yarn net.
The heat radiation effect of first temperature control plate and the second temperature control plate can must effectively act on centrifugal spinning gas channel, accelerate
Curing molding of the jet in centrifugal spinning gas channel, and the width of the first temperature control plate and the second temperature control plate is both greater than centrifuged and spun
The width of the leader of silk gas channel and fiber collecting device, jet leads in centrifugal spinning air-flow during reducing centrifugal spinning
Difference during curing molding in road.The radian of first temperature control plate is 0.04-0.08rad, and the space that the radian is formed can be
Primary air, secondary streamses and the negative-pressure air-flow air flow swirl with reference to caused by provide effective place, and contribute to the air flow swirl to disappear
Dissipate.
Selvage guide tape speed, centrifugal spinning speed, main flow velocity, secondary streamses speed and the negative-pressure air-flow of fiber collecting device
It can be allocated between speed, and then before can must effectively regulating and controlling and optimizing the continuous filament yarn in centrifugal spinning gas channel
Enter movement velocity so that continuous filament yarn being capable of uniform, continuous, the continual upper surface for spreading over leader.Meanwhile adjustment is led
The angle between plane where the bottom of strap and centrifugal spinning tank, can be in the upper surface of the leader of fiber collecting device
Obtain with annular or fold the continuous filament yarn net of chain track distribution.
The present invention proposes a kind of microgravity suspension centrifugal spinning method, realizes high efficiency scale production in enormous quantities
The purpose of nanometer or sub-micron fibers.This method breach it is existing based on annular collect centrifugation spin and based on electrostatic collection from
The technical essential that the heart is spun, solves the problems, such as the preparation of continuous filament yarn, solves the technical problem that mass production is spun in centrifugation, avoids
The actual application problem that power consumption is high, danger coefficient is high during industrialization production is spun in centrifugation, is applicable to wide cut nonwoven surface
The production of the composite modified or non-woven fabrics of wide cut nanometer or submicron-scale of nanofiber or sub-micron fibers.
Brief description of the drawings
Fig. 1 is the microgravity suspension centrifugal spinning equipment arrangement schematic diagram of the present invention.
Embodiment
The present invention is specifically described with instantiation below in conjunction with the accompanying drawings.
See accompanying drawing 1.
A kind of microgravity suspension centrifugal spinning method, centrifugal spinning tank 1 is placed on support grillage, centrifugal spinning tank
1 a diameter of 4-7cm, fiber collecting device is set in the front of centrifugal spinning tank 1, and fiber collecting device is the conveyer of guide roll type
Structure, the width of the leader 2 of fiber collecting device are 40-100cm, leader 2 and the centrifugal spinning tank 1 of fiber collecting device
The angle between plane where bottom is 5-40 °, between the central point of leader 2 and bottom centre's point of centrifugal spinning tank 1
Air line distance be 50-150cm, the lower section of leader 2 is provided with negative pressure generator 3, the width of the air outlet of negative pressure generator 3
Consistent with the width of the leader 2 of fiber collecting device, the inlet scoop of negative pressure generator 3 is relative with the lower surface of leader 2 to be set
Put, the distance between lower surface of inlet scoop and leader 2 is 1cm, and the air quantity of negative pressure generator 3 is 200-500m3/ h, from
The first temperature control plate 4 that radian is 0.04-0.08rad is set between heart spinning box 1 and fiber collecting device, the first temperature control plate 4 with
Centrifugal spinning tank 1 is connected by support, and the width of the first temperature control plate 4 is 50-110cm, and the lower surface of the first temperature control plate 4 sets phase
Mutually parallel and equally distributed heater, heater can be thermal resistance or infrared lamp mainly based on heat radiation temperature control, work(
Rate is 500-2000w, and the both ends of the first temperature control plate 4 are respectively positioned at the upper of the leader 2 of centrifugal spinning tank 1 and fiber collecting device
The top on surface, the vertical range between one end 4 of the first temperature control plate and the top of centrifugal spinning tank 1 are 1-3cm, the first temperature control plate
Vertical range between the top of 4 other end and the leader 2 of fiber collecting device is 1-5cm, the length of the first temperature control plate 4
It can be counted according to the angle between the plane where the leader 2 of fiber collecting device and the bottom of centrifugal spinning tank 1 and radian
Calculate, primary air generator 6 is set at the rear of centrifugal spinning tank 1, and the height of primary air generator 6 is 30-60cm, and primary air occurs
Device 6 is connected with centrifugal spinning tank 1 by support, and primary air generator 6 is provided with horizontally arranged air outlet, primary air generator
The width of 6 air outlet is consistent with the width of the first temperature control plate 4, the air outlet of primary air generator 6 towards fiber collecting device,
Prevailing wind direction adjustable plate, width and the primary air generator 6 of prevailing wind direction adjustable plate are provided with the air outlet of primary air generator 6
The width of air outlet is consistent, and the angle of prevailing wind direction adjustable plate is freely adjustable, the central point of the air outlet of primary air generator 6 with
The bottom of centrifugal spinning tank 1 is in same level, central point and the centrifugal spinning tank 1 of the air outlet of primary air generator 6
Air line distance between bottom centre's point is 50-200cm, and the air quantity of primary air generator 6 is 200-500m3/ h, centrifugal spinning
Second temperature control plate 7, the second temperature control plate 7 and centrifugal spinning tank 1 and primary air generator 6 are set between tank 1 and primary air generator 6
Connected by support, the width of the second temperature control plate 7 is consistent with the width of the first temperature control plate 4, and the lower surface of the second temperature control plate 7 is set
It is parallel to each other and equally distributed heater, the heater of the second temperature control plate 7 is consistent with the heater of the first temperature control plate 4, and second
The both ends of temperature control plate 7 are respectively positioned at the top of centrifugal spinning tank 1 and primary air generator 6, the second temperature control plate 7 and centrifugal spinning tank
Vertical range between 1 top is 1-3cm, and the second temperature control plate 7 and the vertical range at the top of primary air generator 6 are 1-5cm, the
The length of two temperature control plates 7 can be calculated according to the relation between primary air generator 6 and centrifugal spinning tank 1, in the second temperature control
The lower section of plate 7 sets secondary streamses generator 8, and secondary streamses generator 8 is provided with horizontally arranged air outlet, secondary streamses generator 8
Length be 30-60cm, the width of 4 pairs of the width of the air outlet of secondary streamses generator 8 and the first temperature control plate is consistent, air outlet with
The lower surface of second temperature control plate 7 is oppositely arranged, and secondary wind direction adjusting plate, width and the pair of secondary wind direction adjusting plate are provided with air outlet
The width of the air outlet of flow generator 8 is consistent, and the angle of secondary wind direction adjusting plate is freely adjustable, and secondary streamses generator 8 goes out
The central point in air port and the air line distance of the bottom centre's point of centrifugal spinning tank 1 are 100-150cm, the air quantity of secondary streamses generator 8
For 200-500m3/ h, during centrifugal spinning, by the air quantity and prevailing wind direction that adjust primary air generator 6 and secondary streamses generator 8
The angle of adjustable plate and secondary wind direction adjusting plate forms centrifugal spinning gas channel, and centrifugal spinning tank 1 is turned with 2000-6000rpm's
Speed is rotated, by device for storing liquid 10 through infusion device 11 be injected into the spinning solution of centrifugal spinning tank 1 under the action of the centrifugal force from
The spinneret orifice of centrifugal spinning tank 1 projects to form jet, and is transported forward in microgravity suspended state in centrifugal spinning gas channel
OK, continuous filament yarn is gradually solidified under the heat radiation effect of the second temperature control plate 7 and the first temperature control plate 4, it is negative in negative pressure generator 3
In the presence of pressure, the continuous filament yarn being suspended in centrifugal spinning gas channel is continuous continual from centrifugation with parabolical track
Fallen in spinning gas channel, finally spread over and led with the 2-10m/min speed of service from driven voller 9 to what drive roll 5 moved
The upper surface of strap 2, form continuous filament yarn net.
A kind of microgravity suspension centrifugal spinning method of the present invention is applied to melt spinning system and solvent spinning system.
Specific embodiment
Embodiment 1
During centrifugal spinning, the angle between plane where the leader of fiber collecting device and the bottom of centrifugal spinning tank
For 5 °, the air line distance between the central point of leader and bottom centre's point of centrifugal spinning tank is 50cm, fiber collecting device
The width of leader be 40cm, the lower section of leader sets negative pressure generator, the inlet scoop of negative pressure generator and leader
Lower surface is oppositely arranged, and the distance between lower surface of inlet scoop and leader is 1cm, and the air quantity of negative pressure generator is 200m3/
H, the first temperature control plate that radian is 0.04rad, the width of the first temperature control plate are set between centrifugal spinning tank and fiber collecting device
Spend for 50cm, the lower surface of the first temperature control plate, which is set, to be parallel to each other and equally distributed heater, the both ends point of the first temperature control plate
Not Wei Yu centrifugal spinning tank and fiber collecting device leader upper surface top, one end and the centrifugation of the first temperature control plate are spun
Vertical range between silk tank top is 1cm, between the other end of the first temperature control plate and the leader top of fiber collecting device
Vertical range be 1cm, centrifugal spinning tank rear set primary air generator, primary air generator be provided with it is horizontally arranged
Air outlet, the width of the air outlet of primary air generator is consistent with the width of the first temperature control plate, the air outlet of primary air generator
Towards fiber collecting device, prevailing wind direction adjustable plate, the air-out of primary air generator are provided with the air outlet of primary air generator
The central point of mouth and the bottom of centrifugal spinning tank are in same level, the central point of the air outlet of primary air generator and centrifugation
Air line distance between bottom centre's point of spinning box is 50cm, and the air quantity of primary air generator is 200m3/ h, centrifugal spinning tank
Second temperature control plate is set between primary air generator, the lower surface of the second temperature control plate set be parallel to each other and it is equally distributed plus
Hot device, the both ends of the second temperature control plate are respectively positioned at the top of centrifugal spinning tank and primary air generator, the second temperature control plate and main gas
Vertical range at the top of flow-generator is 1cm, and the vertical range between the second temperature control plate and centrifugal spinning tank top is 1cm, the
The width of two temperature control plates is consistent with the width of the first temperature control plate, and secondary streamses generator, secondary gas are set in the lower section of the second temperature control plate
Flow-generator is provided with horizontally arranged air outlet, and the lower surface of air outlet and the second temperature control plate is oppositely arranged, the width of air outlet
Degree is consistent with the width of the first temperature control plate, is provided with secondary wind direction adjusting plate at air outlet, in the air outlet of secondary streamses generator
The air line distance of heart point and centrifugal spinning pot bottom central point is 100cm, and the air quantity of secondary streamses generator is 200m3/ h, in master
The air quantity of flow generator and secondary streamses generator is 200m3Adjusted under/h regulation by regulating main air to adjustable plate and secondary wind direction
The angle for saving plate forms centrifugal spinning gas channel, and centrifugal spinning tank is rotated with 2000rpm rotating speed, passed through by device for storing liquid
The spinning solution that infusion device is injected into centrifugal spinning tank is projected to be formed and penetrated from the spinneret orifice of centrifugal spinning tank under the action of the centrifugal force
Stream, and runs forward in centrifugal spinning gas channel in microgravity suspended state, in the second temperature control plate and the first temperature control plate
Continuous filament yarn is gradually solidified under heat radiation effect, in the presence of negative pressure generator negative pressure, centrifugal spinning air-flow is suspended in and leads to
Continuous filament yarn in road to be fallen in the continuous continual gas channel from centrifugal spinning in parabolical track, finally spread over
The upper surface for the leader that the 2-10m/min speed of service is moved from driven voller to drive roll, form continuous filament yarn net.
Embodiment 2
During centrifugal spinning, the angle between plane where the leader of fiber collecting device and the bottom of centrifugal spinning tank
For 40 °, the air line distance between the central point of leader and bottom centre's point of centrifugal spinning tank is 150cm, and fiber collects dress
The width for the leader put is 100cm, and the lower section of leader sets negative pressure generator, the inlet scoop of negative pressure generator and leader
Lower surface be oppositely arranged, the distance between lower surface of inlet scoop and leader is 1cm, and the air quantity of negative pressure generator is
500m3/ h, the first temperature control plate that radian is 0.08rad, the first temperature control are set between centrifugal spinning tank and fiber collecting device
The width of plate is 110cm, and the lower surface setting of the first temperature control plate is parallel to each other and equally distributed heater, the first temperature control plate
Both ends respectively positioned at centrifugal spinning tank and fiber collecting device leader upper surface top, one end of the first temperature control plate with
Vertical range between centrifugal spinning tank top is 3cm, the other end of the first temperature control plate and the leader top of fiber collecting device
Vertical range between portion is 5cm, and primary air generator is set at centrifugal spinning tank rear, and primary air generator is provided with level
The air outlet of arrangement, the width of the air outlet of primary air generator is consistent with the width of the first temperature control plate, primary air generator
Air outlet is provided with prevailing wind direction adjustable plate, primary air generator towards fiber collecting device at the air outlet of primary air generator
Air outlet central point and centrifugal spinning tank bottom in same level, the central point of the air outlet of primary air generator
Air line distance between bottom centre's point of centrifugal spinning tank is 200cm, and the air quantity of primary air generator is 500m3/ h, from
Second temperature control plate is set between heart spinning box and primary air generator, and the lower surface of the second temperature control plate, which is set, to be parallel to each other and uniformly
The heater of distribution, the both ends of the second temperature control plate are respectively positioned at the top of centrifugal spinning tank and primary air generator, the second temperature control
Vertical range between plate and centrifugal spinning tank top is 3cm, the second temperature control plate and the vertical range at the top of primary air generator
For 5cm, the width of the second temperature control plate is consistent with the width of the first temperature control plate, and secondary streamses are set in the lower section of the second temperature control plate
Device, secondary streamses generator are provided with horizontally arranged air outlet, and the lower surface of air outlet and the second temperature control plate is oppositely arranged, air-out
The width of mouth is consistent with the width of the first temperature control plate, and secondary wind direction adjusting plate, the air-out of secondary streamses generator are provided with air outlet
The central point of mouth is 150cm with the air line distance of centrifugal spinning pot bottom central point, and the air quantity of secondary streamses generator is 500m3/
H, it is 500m in the air quantity of primary air generator and secondary streamses generator3By regulating main air to adjustable plate and pair under/h regulation
The angle of wind direction adjusting plate forms centrifugal spinning gas channel, and centrifugal spinning tank is rotated with 6000rpm rotating speed, by liquid storage
The spinning solution that device is injected into centrifugal spinning tank through infusion device projects from the spinneret orifice of centrifugal spinning tank under the action of the centrifugal force
Jet is formed, and is run forward in microgravity suspended state in centrifugal spinning gas channel, in the second temperature control plate and the first temperature
Continuous filament yarn is gradually solidified under the heat radiation effect of control plate, in the presence of negative pressure generator negative pressure, is suspended in centrifugal spinning
Continuous filament yarn in gas channel in the continuous continual gas channel from centrifugal spinning in parabolical track to fall, final paving
Exhibition is in the upper surface for the leader moved with the 10m/min speed of service from driven voller to drive roll, formation continuous filament yarn net.
Embodiment 3
During centrifugal spinning, the angle between plane where the leader of fiber collecting device and the bottom of centrifugal spinning tank
For 25。, the air line distance between the central point of leader and bottom centre's point of centrifugal spinning tank is 100cm, and fiber collects dress
The width for the leader put is 70cm, and the lower section of leader sets negative pressure generator, the inlet scoop of negative pressure generator and leader
Lower surface be oppositely arranged, the distance between lower surface of inlet scoop and leader is 1cm, and the air quantity of negative pressure generator is
350m3/ h, the first temperature control plate that radian is 0.06rad, the first temperature control are set between centrifugal spinning tank and fiber collecting device
The width of plate is 80cm, and the lower surface setting of the first temperature control plate is parallel to each other and equally distributed heater, the first temperature control plate
Both ends respectively positioned at centrifugal spinning tank and fiber collecting device leader upper surface top, one end of the first temperature control plate with
Vertical range between centrifugal spinning tank top is 2cm, the other end of the first temperature control plate and the leader top of fiber collecting device
Vertical range between portion is 3cm, and primary air generator is set at centrifugal spinning tank rear, and primary air generator is provided with level
The air outlet of arrangement, the width of the air outlet of primary air generator is consistent with the width of the first temperature control plate, primary air generator
Air outlet is provided with prevailing wind direction adjustable plate, primary air generator towards fiber collecting device at the air outlet of primary air generator
Air outlet central point and centrifugal spinning tank bottom in same level, the central point of the air outlet of primary air generator
Air line distance between bottom centre's point of centrifugal spinning tank is 125cm, and the air quantity of primary air generator is 350m3/ h, from
Second temperature control plate is set between heart spinning box and primary air generator, and the lower surface of the second temperature control plate, which is set, to be parallel to each other and uniformly
The heater of distribution, the both ends of the second temperature control plate are respectively positioned at the top of centrifugal spinning tank and primary air generator, the second temperature control
Vertical range between plate and centrifugal spinning tank top is 2cm, the second temperature control plate and the vertical range at the top of primary air generator
For 3cm, the width of the second temperature control plate is consistent with the width of the first temperature control plate, and secondary streamses are set in the lower section of the second temperature control plate
Device, secondary streamses generator are provided with horizontally arranged air outlet, and the lower surface of air outlet and the second temperature control plate is oppositely arranged, air-out
The width of mouth is consistent with the width of the first temperature control plate, and secondary wind direction adjusting plate, the air-out of secondary streamses generator are provided with air outlet
The central point of mouth is 125cm with the air line distance of centrifugal spinning pot bottom central point, and the air quantity of secondary streamses generator is 350m3/
H, it is 350m in the air quantity of primary air generator and secondary streamses generator3By regulating main air to adjustable plate and pair under/h regulation
The angle of wind direction adjusting plate forms centrifugal spinning gas channel, and centrifugal spinning tank is rotated with 4000rpm rotating speed, by liquid storage
The spinning solution that device is injected into centrifugal spinning tank through infusion device projects from the spinneret orifice of centrifugal spinning tank under the action of the centrifugal force
Jet is formed, and is run forward in microgravity suspended state in centrifugal spinning gas channel, in the second temperature control plate and the first temperature
Continuous filament yarn is gradually solidified under the heat radiation effect of control plate, in the presence of negative pressure generator negative pressure, is suspended in centrifugal spinning
Continuous filament yarn in gas channel in the continuous continual gas channel from centrifugal spinning in parabolical track to fall, final paving
Exhibition is in the upper surface for the leader moved with the 2-6m/min speed of service from driven voller to drive roll, formation continuous filament yarn net.
Claims (5)
- A kind of 1. microgravity suspension centrifugal spinning method, it is characterised in that：Fiber is set to collect in front of centrifugal spinning tank (1) Device, fiber collecting device are the conveying mechanism of guide roll type, the leader (2) of fiber collecting device and centrifugal spinning tank (1) The angle between plane where bottom is 5-40 °, the central point of leader (2) and bottom centre's point of centrifugal spinning tank (1) Between air line distance be 50-150cm, the lower section of leader (2) sets negative pressure generator (3), the air draught of negative pressure generator (3) The lower surface of mouth and leader (2) is oppositely arranged, and the distance between lower surface of inlet scoop and leader (2) is 1cm, and negative pressure is sent out The air quantity of raw device (3) is 200-500m3/ h, it is 0.04- that radian is set between fiber collecting device in centrifugal spinning tank (1) 0.08rad the first temperature control plate (4), the lower surface setting of the first temperature control plate (4) is parallel to each other and equally distributed heater, the The both ends of one temperature control plate (4) are respectively higher than the upper surface of the leader (2) of centrifugal spinning tank (1) and fiber collecting device, from Heart spinning box (1) rear sets primary air generator (6), and primary air generator (6) is provided with horizontally arranged air outlet, main gas The air outlet of flow-generator (6) is provided with prevailing wind direction regulation towards fiber collecting device at the air outlet of primary air generator (6) Plate, the central point of the air outlet of primary air generator (6) and the bottom of centrifugal spinning tank (1) are in same level, primary air Air line distance between the central point of the air outlet of generator (6) and bottom centre's point of centrifugal spinning tank (1) is 50-200cm, The air quantity of primary air generator (6) is 200-500m3/ h, second is set between centrifugal spinning tank (1) and primary air generator (6) Temperature control plate (7), the lower surface setting of the second temperature control plate (7) is parallel to each other and equally distributed heater, the second temperature control plate (7) Both ends are respectively higher than centrifugal spinning tank (1) and primary air generator (6), set secondary streamses to send out in the lower section of the second temperature control plate (7) Raw device (8), secondary streamses generator (8) are provided with horizontally arranged air outlet, the lower surface phase of air outlet and the second temperature control plate (7) To setting, secondary wind direction adjusting plate, central point and the centrifugal spinning tank of the air outlet of secondary streamses generator (8) are provided with air outlet (1) air line distance of bottom centre's point is 100-150cm, and the air quantity of secondary streamses generator (8) is 200-500m3/ h, centrifugation are spun During silk, by the air quantity and prevailing wind direction adjustable plate and secondary wind direction tune that adjust primary air generator (6) and secondary streamses generator (8) The angle for saving plate forms centrifugal spinning gas channel, and centrifugal spinning tank is injected into through infusion device (11) by device for storing liquid (10) (1) spinning solution projects to form jet from the spinneret orifice of centrifugal spinning tank (1) under the action of the centrifugal force, and in centrifugal spinning air-flow Run forward in microgravity suspended state in passage, the second temperature control plate (7) and the first temperature control plate (4) heat radiation effect under by Continuous filament yarn is gradually solidified into, in the presence of negative pressure generator (3) negative pressure, the continuous length that is suspended in centrifugal spinning gas channel Silk finally spreads over operating leader to be fallen in the continuous continual gas channel from centrifugal spinning in parabolical track (2) upper surface, continuous filament yarn net is formed.
- A kind of 2. microgravity suspension centrifugal spinning method as claimed in claim 1, it is characterised in that：The first described temperature control Vertical range between at the top of one end of plate (4) and centrifugal spinning tank (1) be 1-3cm, the other end and the fibre of the first temperature control plate (4) The vertical range tieed up between the top of the leader (2) of collection device is 1-5cm.
- A kind of 3. microgravity suspension centrifugal spinning method as claimed in claim 1, it is characterised in that：The second described temperature control Vertical range between at the top of plate (7) and centrifugal spinning tank (1) is 1-3cm, the second temperature control plate (7) and primary air generator (6) The vertical range at top is 1-5cm.
- A kind of 4. microgravity suspension centrifugal spinning method as claimed in claim 1, it is characterised in that：Described primary air hair Give birth to the width one of the air outlet of device (6), the air outlet of secondary streamses generator (8), the first temperature control plate (4) and the second temperature control plate (7) Cause.
- A kind of 5. microgravity suspension centrifugal spinning method as claimed in claim 1, it is characterised in that：The first described temperature control The width of plate (4) is more than the width of leader (2).
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| US3429953A (en) * | 1965-06-16 | 1969-02-25 | Monsanto Co | Method for producing fibers |
| US5702658A (en) * | 1996-02-29 | 1997-12-30 | Owens-Corning Fiberglas Technology, Inc. | Bicomponent polymer fibers made by rotary process |
| US6113818A (en) * | 1997-11-24 | 2000-09-05 | Owens Corning Fiberglas Technology, Inc. | Method and apparatus for integrating organic fibers with mineral fibers |
| CA2703958A1 (en) * | 2007-10-23 | 2009-04-30 | Ppg Industries Ohio, Inc. | Fiber formation by electrical-mechanical spinning |
| US9365951B2 (en) * | 2014-01-30 | 2016-06-14 | Kimberly-Clark Worldwide, Inc. | Negative polarity on the nanofiber line |
| CN105350093B (en) * | 2015-11-13 | 2018-04-17 | 广东工业大学 | A kind of negative pressure array centrifuges pneumoelectric device for spinning |
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