CN106435774A - Method and device of nanofibers collection prepared by electrostatic method - Google Patents
Method and device of nanofibers collection prepared by electrostatic method Download PDFInfo
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- CN106435774A CN106435774A CN201610920771.1A CN201610920771A CN106435774A CN 106435774 A CN106435774 A CN 106435774A CN 201610920771 A CN201610920771 A CN 201610920771A CN 106435774 A CN106435774 A CN 106435774A
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- receptor
- electrostatic
- wire device
- nanofiber aggregate
- nanofibers
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—Electro-spinning characterised by the electro-spinning apparatus characterised by the spinning section, e.g. capillary tube, protrusion or pin
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0092—Electro-spinning characterised by the electro-spinning apparatus characterised by the electrical field, e.g. combined with a magnetic fields, using biased or alternating fields
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention relates to a method and a device of nanofibers collection prepared by electrostatic method, belonging to the field of electrostatic spinning. A method of preparing nanofibers collection by electrostatic method is characterized in that high voltage electrostatic filed is distributed specifically or by specific strength between a silk yielding device and a receptor, with the cooperation between the receptor and the silk yielding device and installation of the receptor. With the help of the high voltage electrostatic filed, electric fluid drops produce Taylor cones and whipping effect, thereby accordingly specific nanofibers or nanofibers in specific array are formed. Nanofibers collection is formed by the nanofibers deposing on the receptor having relative motion with the silk yielding device. The method and the device of nanofibers collection prepared by electrostatic method influence the electrostatic filed by changing the collector or the receptor, make the electrostatic filed have different intensity distributions, make the nanofibers formed in the specific electric field be disposed in array on the receptor by control, by traverse motions of the silk yielding device, and thus the structural nanofibers collection can be formed.
Description
Technical field
The present invention relates to the method that the method and apparatus of electrostatic spinning, more particularly to electrostatic method prepare nanofiber aggregate
And device.
Background technology
Electrostatic spinning is mainly used under high voltage electric field as a kind of nanofiber manufacturing technology, and drop becomes tapered, shape
Become taylor cone, then extend in the presence of electrostatic force, form nano level superfine fiber.Electrostatic spinning can woven material species with which
The advantages of various, process controllability is good, it has also become currently prepare the study hotspot of nano-fiber material.
Based on research at present for electrostatic spinning, it is believed that the essence of electrostatic spinning is quickly to produce injection stream, therefore existing
The impact of the configuration to fiberizing of spinneret orifice, concrete body are all focused primarily upon in a series of researchs for electrostatic spinning
Now for the research of the injection syringe needle of solution or melt, the such as injection syringe needle of variously-shaped or pattern, also or needleless
Spraying canister or injection apparatus etc..
Or for the industrialized research of electrostatic spinning technique, such as the collection side of the nano level superfine fiber for producing
Method etc..As, in United States Patent (USP) US6106913A, superfine fibre being directed on long filament using flow deposition method, through traction winding shape
Become high-tenacity nanofiber covering yarn；Or the dynamic rotary for adopting in Chinese patent CN201410280734.X is tubaeform
Catcher, the collection method that superfine fibre is directed on long filament and is twisted.
Produced based on electrostatic spinning in the production method of nanometer superfine fibre and the research of Collection utilization method at these, front
What person mainly studied is to produce fluid of different shapes using different spinning heads or nozzle, be all using collecting board or receiver board
The fiber for producing is collected；Although the latter is improved to catcher or receptor, catcher is not just made
For the ingredient of high voltage electric field, but it is only used as collection device and the superfine fibre for producing in high voltage electric field is collected.
Content of the invention
The present invention proposes the method and apparatus that a kind of electrostatic method prepares nanofiber aggregate, by change catcher or
Receptor further affects high voltage electric field, makes high voltage electric field have different distribution intensity, in conjunction with the motion of wire device, can
Form the nanofiber aggregate of different distributions or form.
Technical scheme
A kind of method that electrostatic method prepares nanofiber aggregate, it is characterised in that：By setting and the reception of receptor
Device and the cooperation of wire device, form the high-voltage electrostatic field of certain strength or distribution, in height between wire device and receptor
In the presence of pressure electrostatic field, charged drop forms taylor cone and produces whip and moves effect, and then forms nanofiber, the nanometer of formation
Fiber is deposited on the receptor with wire device relative motion, forms nanofiber aggregate.
Further, the wire device is moved back and forth along the receiving plane of receptor, is formed thin on the receiving plane of receptor
Chip nanofiber aggregate.
The receptor is rotated along the rotary shaft parallel to the wire device direction of motion, forms continuous slice formula nanometer
Fiber assembly.
Further, by adjusting the shape of receptor so as to adjust the distribution of high-voltage electrostatic field, in wire device and reception
The high-voltage electrostatic field of specific distribution is formed between device.
Further, the wire device connects the positive pole of electrostatic generator, and the receptor connects the negative of electrostatic generator
Pole or ground connection.
Further, the cross section in the wire vent hole of the wire device is the shape of concentric shape or bias.
A kind of device that should prepare nanofiber aggregate with the aforedescribed process, including wire device and receptor, which is special
Levy and be：The wire device connects the positive pole of electrostatic generator, the negative pole of the receptor connection electrostatic generator or ground connection,
High-voltage electrostatic field is formed between wire device and receptor, and the receptor is by coaxially connected component and electrostatic generator
Negative pole or zero line are connected, and receptor one end is provided with joint, and the coaxially connected component is coaxially connected with joint, described coaxially connect
Connected components connect rotary electric machine output shaft.
Further, the wire device is arranged on spray webbing head arm front end, and spray webbing head arm is driven by reciprocator, realizes
Reciprocating motion along the receiving plane of receptor.
The reciprocator includes slide rail and slide plate, and spray webbing head arm is on slide plate, and motor is installed in cunning
Rail both sides, drive parallel to slide rail and are arranged on the Timing Belt above slide rail, so as to drive the slide plate being arranged on Timing Belt,
Slide on slide rail, slide plate drives spray webbing head arm to move back and forth on slide rail.
The adjustable proximity switch in position is respectively arranged with slide rail two ends, for detecting the marginal position in skateboarding,
Limit the reciprocating mobile range of spray webbing head arm.
The spray webbing head arm adopts arm, between wire device and spray webbing head arm front end and each section of arm of spray webbing head arm
All connected using bearing pin, to realize mutual rotation, spray webbing head arm rear end is also connected on reciprocator with bearing pin, can be made
Wire device rests on the position of setting, adjusts the distance between wire device and receptor.
Further, also include enclosed housing, the wire device and receptor are arranged in casing, in casing predominantly
Electrostatic field areas, is additionally provided with Temperature Humidity Sensor and heating air exhausting device, for adjusting the temperature of box house, wet in casing
Degree and air draft.
The body side has cabinet door, and cabinet door is provided with safety switch where contacting with casing, for controlling
In the case that cabinet door is opened, the electrostatic generator quits work.
The wall box is additionally provided with device for storing liquid, and the device for storing liquid includes multiple independent fluid reservoirs, each liquid storage
Tank connects the different spinning head of the wire device respectively.
The device for storing liquid goes out liquid using Mechanical Driven or pneumatic actuation goes out liquid.
The box bottom is provided with the electric cabinet of control, and body side arranges rotary electric machine, the electric cabinet connection external power supply of control,
Electrostatic generator and controller are provided with the electric cabinet of control, the electric cabinet medial surface of control is provided with cable crawler belt, by connecting line boundling
To in cable crawler belt, draw from rear side of the electric cabinet top plate of control, on the device being respectively connecting in casing and the device of body side.
Beneficial effect
The electrostatic method that the present invention is provided is prepared the method and apparatus of nanofiber aggregate and is changed by the setting of receptor
The intensity of high voltage electric field or distribution, so as to control charged drop to form taylor cone in high voltage electric field, and in high voltage electric field
Follow-up movement locus, can form the nanofiber of particular requirement or the nanofiber of particular arrangement, then by receiving
Device and the relative motion of wire device, make the nanofiber of the specific nanofiber or particular arrangement to be formed through deposition or receive
The nanofiber aggregate with particular types or ad hoc structure is formed after collection, or by controlling wire device along receptor
Receiving plane is moved back and forth, in the different jet of receiving plane diverse location injection, so as to collect the nanofiber to form different arrangements
Aggregation；Assembly of the invention connects receptor and HV generator negative pole by coaxially connected component, allows device
Different receptors are changed, is connect such that it is able to the structure and variety exchanging of nanofiber according to demand or nanofiber aggregate
Device is received, improves versatility and the adaptability of device；
Electrostatic spinning region relative closure in assembly of the invention, reduces environmental effect, and humiture is controlled so that prepare
Nanofiber and nanofiber aggregate can meet the requirements, performance and stable array, and continuous preparation can be realized.
Description of the drawings
Fig. 1 is the schematic diagram of the electrostatic field that the wire device of the present invention forms point-to-area distribution with receptor；
Fig. 2 is the schematic diagram of the electrostatic field that the wire device of the present invention forms point-to-point distribution with receptor；
Fig. 3 is formed in the face of a schematic diagram for the electrostatic field of distribution with receptor for the wire device of the present invention；
Fig. 4 is the schematic diagram that the wire device of the present invention forms the electrostatic field in the face of EDS maps with receptor；
Fig. 5 is the schematic diagram for continuously preparing nanofiber aggregate in the present invention using traction long filament；
Fig. 6 is assembly of the invention schematic diagram, and wherein wire device adopts point-like wire device；
Schematic diagram of the Fig. 7 for receptor on coaxially connected component；
Fig. 8 is spray webbing headstock structural representation；
When Fig. 9 is spinneret for wire device, reciprocator schematic diagram；
Figure 10 is the elevational schematic view of Fig. 9；
Figure 11 is the schematic side view of spray webbing head arm；
When Figure 12 is spinneret for wire device, the setting schematic diagram of wire device and receptor in casing；
Figure 13 is column plate type receptor schematic diagram；
Figure 14 is needle plate type receptor schematic diagram；
Figure 15 is cone-shaped metal spiral line receiver schematic diagram.
Wherein：1- enclosed housing, the electric cabinet of 2- control, 3- receptor joint, 4- safety switch, 5- heats air exhausting device,
6- device for storing liquid, 7- fixing axle bolster, the 8- spray webbing headstock, 9- nanofiber, 10- electrostatic generator, 11- magnetic eye, 12- dividing plate bottom
Seat, 13- draws long filament, 14- guide frame, 15- coiler device, 16- wire device, 17- receptor, 18- reciprocator, 19-
Rotary electric machine, 20- pretreatment unit, 21- set screw, 22- hollow axle, 23- power transmission shaft, 24- bearing, 25- receptor base plate,
26- receiver front end, 181- motor, 182- spray webbing head arm, 183- bearing pin, 184- Timing Belt, 185- slide rail, 186- is slided
Plate, 187- proximity switch, the 81- spray webbing headstock, 82- long connecting rod, 83- short connecting rod, 84- pull bar, 85- return spring, 86- is oriented to
Seat, 87- through hole star grip knob.
Specific embodiment
With reference to specific embodiments and the drawings, the present invention is further described.
The electrohydraulic motion model of the taylor cone for being proposed based on Taylor, the extensive research for electrostatic spinning now is all concentrated
In the research of the injection apparatus for solution or melt or the research of fiber collecting device, but different special for preparing
Property or different structure require nanofiber aggregate, be currently still there is no what method.
The present invention is proposed by changing the receptor as an electrostatic field part, makes high voltage electric field in intensity and distribution
Specific requirement is reached, and during taylor cone being formed in charged drop, and exceedes critical charge after taylor cone is formed
Density, taylor cone becomes unstable, forms jet injection, and jet accelerates in the electric field, and diameter diminishes, and relaxes and forms ultra-fine fibre
During this range of motion of dimension, charged drop is affected, the nanometer superfine fibre of particular form is formed, and receptor is used as receipts
Acquisition means, make nanometer superfine fibre be collected according to certain arrangement and requirement, form the nanofiber of specific distribution and specific
The nanofiber aggregate of structure.
When receptor and wire device are connected on the negative pole of HV generator and positive pole respectively, receptor and going out
Between silk device formed high-voltage electrostatic field, wire device connection device for storing liquid in solution or melt through wire device
During capillary tube in front of spinning head, drop is powered, and is subject to electrostatic force in the electrostatic field that receptor is formed with wire device
Effect.
When wire device adopts point-like wire device, when receptor is using the shape with certain distribution face, fill in wire vent
Putting the electrostatic field that point-to-area distribution is formed and receptor between, anticipating as shown in Figure 1,16 is wire device, 17 is receptor, to go out
The jet that silk device sprays can form the jet area of the class taper illustrated by figure dotted line in this electrostatic field, affect nanometer
The form of fiber and distribution.
And work as wire device using point-like wire device, when receptor is using point-like or wire receptor, in wire device
The electrostatic field of point-to-point distribution being formed and receptor between, being anticipated as shown in Figure 2, the jet that wire device sprays is in this electrostatic
Can form, in, fusiform jet area that in figure dotted line is illustrated.
When wire device is using the shape with certain distribution face, when receptor is using point-like or wire receptor, going out
Formed between silk device and receptor in the face of an electrostatic field for distribution, anticipate as shown in Figure 3, the jet that wire device sprays is at this
Plant the jet area that the inverted cone illustrated by figure dotted line can be formed in electrostatic field.
When wire device is using the shape with certain distribution face, receptor is also adopted by the shape with certain distribution face
When, the electrostatic field in the face of EDS maps is formed between wire device and receptor, is anticipated as shown in Figure 3, wire device sprays
Jet can form the jet area of the tubular illustrated by figure dotted line in this electrostatic field.
Point-like or become certain plane distribution wire device had now multiple, therefore by changing different receptors
Coordinated with wire device, different electrostatic fields are formed, different jet areas can be just formed, affect the form of nanofiber
And distribution, obtain the nanofiber of particular demands or the nanofiber of specific distribution arrangement.
The intensity of high-voltage electrostatic field can also be adjusted simultaneously by adjusting the distance between receptor and wire device, formed
The high-voltage electrostatic field of certain strength, auxiliary forms different nanofibers.
The wire vent hole of wire device can adopt single hole or MULTILAYER COMPOSITE hole, mold Single Fiber or composite fibre,
The cross section in wire vent hole can be the shape of concentric shape or bias, receive so as to the control when charged drop forms taylor cone
The shape of rice fiber.
Receptor and wire device relative motion is made, makes the nanofiber to be formed more more preferably or heavy according to certain sequence
Product with the receptor of wire device relative motion on, formed need nanofiber aggregate.During collection, reception is made
Device is rotated around central axis, can help collect.
A piece traction long filament can also be set on the central axis of receptor, and rotated as rotary shaft with central axis
Receptor coordinates and receives nanofiber, nanofiber under electrostatic field force, the traction pull strength of long filament and receptor active force
Traction filament surface forms nanofiber aggregate, and traction long filament one end connects coiler device, realizes continuously preparing nanofiber
Aggregation.Anticipate as shown in Figure 5, in figure 13 is traction long filament.
Or the receiving plane by wire device along receptor is moved back and forth, sheet type is formed on the receiving plane of receptor and is received
Rice fiber assembly, receptor is rotated along the rotary shaft parallel to the wire device direction of motion, is formed continuous slice formula and is received
Rice fiber assembly.The property of jet that so can also be by the position of control wire device movement and in diverse location injection
Matter, realizes the sheet type nanofiber aggregate of particular arrangement requirement.
Based on the above-mentioned method for preparing nanofiber and nanofiber aggregate, can be using anticipating as shown in Figure 6
Device.Wire device and receptor are arranged on inside enclosed housing, wire device connects the positive pole of electrostatic generator, receive
The negative pole of device connection electrostatic generator or ground connection, form high-voltage electrostatic field, the receptor between wire device and receptor
It is connected by the negative pole or zero line of coaxially connected component and electrostatic generator, receptor one end is provided with joint, described coaxially connects
Connected components are coaxially connected with joint, and the coaxially connected component connects rotary electric machine output shaft.
The coaxially connected component includes the power transmission shaft coaxially connected with the joint of receptor, and transmission outer shaft sleeve is equipped with coaxial
Hollow axle, hollow axle is arranged on fixing axle bolster by bearing, passes through set screw between the hollow axle and power transmission shaft
Fixing.Hollow axle side wall has a through hole, and in the hole arranges set screw, by unclamp set screw adjust power transmission shaft with hollow
The relative position of axle, will be fixing between power transmission shaft and hollow axle after secured adjusted screw, realize adjusting in front and back for receptor position.
Anticipate as shown in Figure 7.
A piece traction long filament is set on the central axis of receptor, and the center of the receptor and coaxially connected component is equal
The duct of UNICOM is provided with, is passed through for drawing long filament, traction long filament is driven by coiler device, through receptor and wire device
Between electrostatic field areas, will traction filament surface formation nanofiber aggregate continuously collected.As shown in Figure 6
Meaning, in figure 13 is traction long filament, and 14 is guide frame, and 15 is coiler device.
The receptor can adopt the shape with certain receiving plane, and such as column plate type receptor or circular ring type is received
Device, or Wheel-type receptor, or disk mesh type receptor, or mesh type loudspeaker receptor.Multiple receptors can all make nanometer
Fiber is more orderly, is tightly combined.Wheel-type receptor, mesh type loudspeaker receptor and disk mesh type receptor mainly by
Receptor both sides have airflow hole, can be formed rotation choke with resentment stream come fetter jet diverging, make nanofiber ordered arrangement.As accompanying drawing
13 is column plate type receptor schematic diagram.
The receptor can also adopt point-like or wire receptor, such as needle plate type receptor or cone-shaped metal helix
Receptor.When the receptor using pin type array, if nanofiber can be made to be divided into carried interest, it is to avoid the mixed and disorderly nothing of nanofiber
Chapter, but be attached on different reception pins respectively, realize ordered arrangement；And when adopting cone-type spiral metal line receiver, electric charge
Concentrate in helical wire, the nanofiber more crypto set that receive can the top of cone-shaped metal helix, the nanometer of deposition
Fibre density is bigger, and nanofiber density is tapered into below, realizes the nanofiber of ad hoc structure.If accompanying drawing 14 is needle plate
Formula receptor schematic diagram, accompanying drawing 15 be cone-shaped metal spiral line receiver schematic diagram, both receptors be all include nonmetallic
Receptor base plate and metal receiver front end, receiver front end be respectively needle plate type and cone-shaped metal spiral form, needle plate
The front end of formula is in the linear receptor being made up of point.
And wire device can also adopt point-like wire device, including single spinning head or many spinning heads.Adopt in the present embodiment
Wire device is the double-spinneret being arranged on the spray webbing headstock, and the double-spinneret is symmetrical arranged, two spray webbing headstocks
Bottom is all vertically fixed on long connecting rod one end, and the long connecting rod other end is fixed using alignment pin, is connected with short company in the middle part of long connecting rod
Bar, described short connecting rod one end is fixed on long connecting rod using bearing pin, and the short connecting rod other end connects a pull bar, and solid by bearing pin
Described pull bar one end is scheduled on, the pull bar is fixed on guide holder, pull bar is pulled, pull bar promotes long connecting rod around length by short connecting rod
The fixing end of connecting rod is rotated, drive spinning head on two spray webbing headstocks away from or be close to receptor.Anticipate as shown in Figure 8.
The wire device or multiple concentrations can also such as be had using the wire device with certain distribution face shape
Spinneret orifice spinneret.Wire device is arranged on spray webbing head arm front end, and spray webbing head arm is driven by reciprocator, realizes edge
The reciprocating motion of the receiving plane of receptor.
The reciprocator includes slide rail and slide plate, and spray webbing head arm is on slide plate, and motor is installed in cunning
Rail both sides, drive parallel to slide rail and are arranged on the Timing Belt above slide rail, so as to drive the slide plate being arranged on Timing Belt,
Slide on slide rail, slide plate drives spray webbing head arm to move back and forth on slide rail.It is respectively arranged with slide rail two ends that position is adjustable to be connect
Nearly switch, for detecting the marginal position in skateboarding, limits the reciprocating mobile range of spray webbing head arm.The spinning head
Arm can adopt arm, be all connected using bearing pin between wire device and spray webbing head arm front end and each section of arm of spray webbing head arm,
To realize mutually rotating, spray webbing head arm rear end is also connected on reciprocator with bearing pin, rests on can wire device
The position of setting, adjusts the distance between wire device and receptor.The structure of reciprocator is as shown in accompanying drawing 9～11
Meaning, Figure 10 is the elevational schematic view of Fig. 9, and Figure 11 is the spray webbing head arm schematic diagram of side-looking.Accompanying drawing 12 is to set in closed enclosure body
Put the wire device of spinneret and the setting schematic diagram of cylindric receptor.
Electrostatic field areas is mainly in the closed enclosure body, in casing, is additionally provided with Temperature Humidity Sensor and heating air draft
Device, for adjusting temperature, humidity and the air draft of box house.Anticipate as shown in Figure 6, casing top is provided with heating row
Wind apparatus, using equally distributed multiple heating modules to uniformly being heated in casing, the edge of each heating module sets
It is equipped with vent.Using enclosed housing, impact of the environment to electrostatic spinning can be reduced, improve safety, case-side again
Face has cabinet door, and cabinet door is provided with safety switch where contacting with casing, in the case of controlling cabinet door to open
The electrostatic generator quits work.Safety switch is embedded in where casing edge contacted with cabinet door, and quiet with high pressure
Electric generator is connected, if opening chamber door when HV generator is opened, HV generator can be realized certainly
Dynamic circuit breaker electricity, so that it is guaranteed that safety during operation.
Wall box is additionally provided with device for storing liquid, and the device for storing liquid includes multiple independent fluid reservoirs, and each fluid reservoir divides
Do not connect the different spinning head of the wire device.Device for storing liquid can go out liquid using Mechanical Driven or pneumatic actuation goes out
Liquid.
Box bottom is provided with the electric cabinet of control, and body side arranges rotary electric machine, the electric cabinet connection external power supply of control, control
Electrostatic generator and controller is provided with electric cabinet, and the electric cabinet medial surface of control is provided with cable crawler belt, and connecting line is bundled to electricity
In cable crawler belt, draw from rear side of the electric cabinet top plate of control, on the device being respectively connecting in casing and the device of body side.
When attached device illustrated in Figure 6 works, traction long filament is pushed away by guide frame after laying out, and the power transmission shaft through having through hole enters
Enter box house, the through hole that the shaft through-hole other end connects receptor center is driven, after so that traction long filament is passed by receptor through hole
The electrostatic spinning region for entering between receptor and the spinning head of wire device, then by the magnetic eye on the side wall of casing offside
Derive, collected by the coiler device outside casing.During electrostatic spinning, the propulsion system on the outside of casing and high-pressure electrostatic is opened
Generator, makes spinning head spray solution, and forms nanofiber under electrostatic field, and the nanofibres deposit of formation is to traction
On long filament, nanofiber aggregate is formed.The power transmission shaft outer sheath of connection receptor is equipped with coaxial hollow axle, and hollow axle is fixed
On fixing axle bolster, and the power transmission shaft other end stretches out casing, and is provided with driven pulley and is connected with rotary electric machine.Rotating electricity
Under the driving of machine, the receptor of rotation drives the nanofiber of deposition constantly to rotate, then by drawing long filament receiving molding
Rice fiber assembly is derived, and is wound on the coiler device outside casing.
During attached device work illustrated in Figure 12, cylindric receptor rotation, using spinneret wire device reciprocal
Telecontrol equipment drives the receiving plane of lower opposed receivers to move back and forth, and forms sheet type nanofiber on the receiving plane of receptor
Aggregation, receptor is rotated along the rotary shaft parallel to the wire device direction of motion, forms continuous slice formula nanofiber
Aggregation, can achieve after exporting to outside casing continuously to prepare sheet type nanofiber aggregate.
Claims (16)
1. a kind of method that electrostatic method prepares nanofiber aggregate, it is characterised in that：By setting and the receptor of receptor
With the cooperation of wire device, the high-voltage electrostatic field of certain strength or distribution is formed between wire device and receptor, in high pressure
In the presence of electrostatic field, charged drop forms taylor cone and produces whip and moves effect, and then forms nanofiber, the Nanowire of formation
Dimension is deposited on the receptor with wire device relative motion, forms nanofiber aggregate.
2. the method that electrostatic method as claimed in claim 1 prepares nanofiber aggregate, it is characterised in that：The wire device
Receiving plane along receptor is moved back and forth, and forms sheet type nanofiber aggregate on the receiving plane of receptor.
3. the method that electrostatic method as claimed in claim 2 prepares nanofiber aggregate, it is characterised in that：The receptor edge
Rotary shaft parallel to the wire device direction of motion is rotated, and forms continuous slice formula nanofiber aggregate.
4. the method that electrostatic method as claimed in claim 1 prepares nanofiber aggregate, it is characterised in that：Received by adjusting
The shape of device forms the high-pressure electrostatic of specific distribution so as to adjust the distribution of high-voltage electrostatic field between wire device and receptor
?.
5. the method that the electrostatic method as described in claim 1 or 2 or 3 prepares nanofiber aggregate, it is characterised in that：Described go out
The positive pole of silk device connection electrostatic generator, the negative pole of the receptor connection electrostatic generator or ground connection.
6. the method that the electrostatic method as described in claim 1 or 2 or 3 prepares nanofiber aggregate, it is characterised in that：Described go out
The cross section in the wire vent hole of silk device is the shape of concentric shape or bias.
7. a kind of application the method for claim 1 prepares the device of nanofiber aggregate, including wire device and connects
Receive device, it is characterised in that：The wire device connects the positive pole of electrostatic generator, and the receptor connects the negative of electrostatic generator
Pole or ground connection, between wire device and receptor formed high-voltage electrostatic field, the receptor by coaxially connected component with quiet
The negative pole of electric generator or zero line are connected, and receptor one end is provided with joint, and the coaxially connected component is coaxially connected with joint,
The coaxially connected component connects rotary electric machine output shaft.
8. the device of nanofiber aggregate is prepared as claimed in claim 7, it is characterised in that：The wire device is arranged on
Spray webbing head arm front end, spray webbing head arm is driven by reciprocator, realizes the reciprocating motion of the receiving plane along receptor.
9. the device of nanofiber aggregate is prepared as claimed in claim 8, it is characterised in that：The reciprocator bag
Slide rail and slide plate is included, spray webbing head arm is on slide plate, and motor is arranged on slide rail both sides, drives parallel to slide rail and arranges
Timing Belt above slide rail, so as to drive the slide plate being arranged on Timing Belt, slides on slide rail, and slide plate drives spray webbing head arm
Move back and forth on slide rail.
10. the device of nanofiber aggregate is prepared as claimed in claim 9, it is characterised in that：Set at slide rail two ends respectively
The adjustable proximity switch in position is equipped with, for the marginal position in skateboarding is detected, limits the reciprocating shifting of spray webbing head arm
Dynamic amplitude.
11. devices for preparing nanofiber aggregate as claimed in claim 8, it is characterised in that：The spray webbing head arm is adopted
Arm, is all connected using bearing pin between wire device and spray webbing head arm front end and each section of arm of spray webbing head arm, to realize mutually
Rotate, spray webbing head arm rear end is also connected on reciprocator with bearing pin, and wire device can be made to rest on the position of setting,
Adjust the distance between wire device and receptor.
12. devices for preparing nanofiber aggregate as claimed in claim 7, it is characterised in that：Also include enclosed housing,
The wire device and receptor are arranged in casing, be mainly electrostatic field areas, be additionally provided with humiture in casing in casing
Sensor and heating air exhausting device, for adjusting temperature, humidity and the air draft of box house.
13. devices for preparing nanofiber aggregate as claimed in claim 12, it is characterised in that：The body side has
Cabinet door, cabinet door is provided with safety switch where contacting with casing, for controlling cabinet door described quiet in the case of opening
Electric generator quits work.
14. devices for preparing nanofiber aggregate as claimed in claim 12, it is characterised in that：The wall box also sets
Device for storing liquid is equipped with, the device for storing liquid includes multiple independent fluid reservoirs, each fluid reservoir connects the wire device respectively
Different spinning heads.
15. devices for preparing nanofiber aggregate as claimed in claim 14, it is characterised in that：The device for storing liquid is adopted
Mechanical Driven goes out liquid or pneumatic actuation goes out liquid.
16. devices for preparing nanofiber aggregate as claimed in claim 12, it is characterised in that：The box bottom is arranged
There is the electric cabinet of control, body side arranges rotary electric machine, the electric cabinet connection external power supply of control, electrostatic generation is provided with the electric cabinet of control
Device and controller, the electric cabinet medial surface of control is provided with cable crawler belt, and connecting line is bundled in cable crawler belt, from the electric cabinet top of control
Draw on rear side of plate, on the device being respectively connecting in casing and the device of body side.
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| CN201610920771.1A CN106435774A (en) | 2016-10-21 | 2016-10-21 | Method and device of nanofibers collection prepared by electrostatic method |
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| CN201610920771.1A CN106435774A (en) | 2016-10-21 | 2016-10-21 | Method and device of nanofibers collection prepared by electrostatic method |
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| CN110205685A (en) * | 2019-05-23 | 2019-09-06 | 东华大学 | Spinning self-regulation electrostatic spinning apparatus and its application method |
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Application publication date: 20170222 |