CN106283219B - A kind of melt electrospun nanofiber of spininess rotation twisting is twisted thread preparation facilities and method - Google Patents
A kind of melt electrospun nanofiber of spininess rotation twisting is twisted thread preparation facilities and method Download PDFInfo
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- CN106283219B CN106283219B CN201610972932.1A CN201610972932A CN106283219B CN 106283219 B CN106283219 B CN 106283219B CN 201610972932 A CN201610972932 A CN 201610972932A CN 106283219 B CN106283219 B CN 106283219B
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- single needle
- spray head
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- fiber
- needle spray
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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
- D01D5/0069—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
- D01D5/0076—Electro-spinning characterised by the electro-spinning apparatus characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid
Abstract
The present invention relates to a kind of melt electrospun nanofibers of spininess rotation twisting to twist thread preparation facilities and method, belongs to electrostatic spinning field.Device specifically includes that heating rod, central axis, runner, turning head, extruder, flow distribution plate, ball, worm screw, thin-walled pressure vessel, copper ring, conical deflector, single needle spray head, worm gear, acrylic board with holes, electrode plate, HV generator, receiving roll etc..Conical deflector is used with central axis and is threadedly coupled in apparatus of the present invention and method, and coaxially arranged with thin-walled pressure vessel.Arrange copper ring as sealing device between syringe needle top and runner.The circumferentially disposed raising spinning efficiency of multiple single needle spray heads and yield, and be conveniently replaceable and clean using being threadedly coupled with thin-walled pressure vessel bottom plate, by using the controllable number of fiber of syringe needle plug replacement single needle spray head.Worm gearing drives the rotation of single needle spray head, and the twist is controllable, and number of fiber is controllable, and fibre diameter is uniform, and the applicability that nanometer is twisted thread can be improved, meet the needs of different field.
Description
Technical field
The present invention relates to a kind of melt electrospun nanofibers of spininess rotation twisting to twist thread preparation facilities and method, belongs to Static Spinning
Silk field.
Background technique
Come into the nanosecond science and technology epoch now, method of electrostatic spinning, which has been acknowledged as preparing nanofiber, most simply most to be had
The method of effect, hindering melt electrostatic spinning industrialized critical issue at present is that the yield of fiber, fibre diameter further subtract
Small and fibre diameter uniformity.
It is the main performance shape of the another kind of nanofiber aggregate at present other than nanofiber mats that nanofiber, which is twisted thread,
Formula has potential application value in many key areas.Varabhas etc. devises an antipriming pipe electrostatic spinning device, the party
Method uses the Porous hollow hard tube of both ends sealing, and electrode is placed in pipe, and pipe built-in electrode contact area is smaller, is not easy to be formed uniformly
Electric field, or even fluid flow characteristics can be interfered, in addition there is also the susceptible to plugging problems of aperture.Chinese patent (patent No.:
201210554168.8) a kind of glass fibre twisting technique, although can achieve the effect that twisting, its twisting stability is low,
Orientation and uniformity are poor, are unable to control the twist.
In view of the above-mentioned problems, the present invention proposes that a kind of melt electrospun nanofiber of spininess rotation twisting is twisted thread preparation facilities and side
Method.The nanometer of device preparation is twisted thread regular, and the twist is controllable, and number of fiber is controllable, and fibre diameter is uniform, improves nanometer and twists thread
Applicability and mechanical property, increase its secondary workability, expand the application field of nanofiber.
Summary of the invention
The present invention proposes that a kind of melt electrospun nanofiber of spininess rotation twisting is twisted thread preparation facilities and method, central axis with point
The runner successively to narrow from top to bottom is formed between flowing plate, guarantees the uniformity of charging.Copper is arranged between syringe needle top and runner
Ring is as sealing device.Multiple single needle spray head annulars uniformly improve spinning efficiency and yield, avoid mechanical viscous in twisting process
Even the problem of.Single needle spray head is threadedly attached on container floor, is conveniently replaceable and is cleaned, and single using the replacement of syringe needle plug
Needle spray head can control number of fiber.Single needle spray head rotates, and rapidly oscillation and whip are dynamic in air for jet stream, and fiber is further
Slenderizing.Uniform electric field is formed between hollow annular electro pole plate and single needle spray head, it is ensured that fibre diameter uniformity consistency.It adjusts
The revolving speed of section motor can control the twist, and the nanometer for preparing high-sequential is twisted thread, and the mechanical property of nanofiber is improved.Entirely
The nanometer of process preparation is twisted thread regular, and the twist is controllable, and number of fiber is controllable, and fibre diameter is uniform, improve nanometer twist thread it is suitable
With property, meets the needs of different field.
Realizing the technical solution of above-mentioned purpose is: a kind of melt electrospun nanofiber of spininess rotation twisting is twisted thread preparation facilities,
Specifically include that heating rod, central axis, runner, turning head, extruder, flow distribution plate, ball, worm screw, thin-walled pressure vessel, copper ring, cone
Shape air deflector, single needle spray head, worm gear, acrylic board with holes, electrode plate, HV generator, receiving roll etc..It extruder and turns
Angle head is connected, and turning head lower end protrudes into runner.Conical deflector is used with central axis and is threadedly coupled, and and thin-walled pressure vessel
It is coaxially arranged.Thin-walled pressure vessel side wall lower ends position, which thickeies, is made worm gear, forms transmission device with endless screw electric motor, bottom passes through screw thread
Connect the single needle spray head being circular layout.Ball is used in the mating part of flow distribution plate and thin-walled pressure vessel, becomes sliding friction to roll
Friction, frictional force when smaller rotation.Annular electro pole plate is connected with HV generator, is placed on acrylic board with holes,
High-voltage electrostatic field is formed with accepted roll.Melt is flowed out simultaneously by multiple single needle spray heads, and under electric field force effect, fiber falls on electrode
On plate, meanwhile, worm and gear drives syringe needle rotation, so that fiber achievees the effect that drawing-off and boundling.Fiber is wound into insulation
On stick, across the mesoporous of electrode plate, it is wound into receiving roll.Accepted roll is placed in immediately below electrode plate, by V belt translation, by motor
It drives around center axis rotation, is collected into twisting thread for orientation.
The present invention relates to a kind of melt electrospun nanofibers of spininess rotation twisting to twist thread preparation facilities, and extruder heats material
Squeeze out, melt enters the runner between flow distribution plate and central axis, and runner becomes narrow gradually from top to bottom, melt through conical deflector,
It uniformly flows into each single needle spray head, ensure that the uniformity of charging.
The present invention relates to a kind of melt electrospun nanofibers of spininess rotation twisting to twist thread preparation facilities, ball be placed in flow distribution plate and
The mating part of thin-walled pressure vessel, change sliding friction reduce frictional force when thin-walled pressure vessel rotates into rolling friction.
The present invention relates to a kind of melt electrospun nanofibers of spininess rotation twisting to twist thread preparation facilities, worm gearing
Spray head is driven to rotate, rapidly oscillation and whip are dynamic in air for jet stream, so that the further slenderizing of fiber.
A kind of melt electrospun nanofiber of present invention spininess rotation twisting is twisted thread preparation facilities, and worm screw drives worm gear rotation, together
When rotate therewith by being threaded in the single needle spray head of thin-walled pressure vessel bottom surface, syringe needle, which can according to need, carries out disassembly peace
Dress, convenient for cleaning.Fiber number can be reduced by replacing single needle spray head by syringe needle plug, achieve the purpose that control number of fiber.
A kind of melt electrospun nanofiber of present invention spininess rotation twisting is twisted thread preparation facilities, and the uniformly distributed single needle spray head of annular is made
Rotary motion, realization gather effect to fibre bundle, and the revolving speed by adjusting motor can control the twist of nanofiber.
A kind of melt electrospun nanofiber of present invention spininess rotation twisting is twisted thread preparation facilities, and the high speed rotation of receiving roll is advantageous
It is orientated in gathering fiber in dropping process, the fiber being finally collected in receiving roll is twisted thread for orientation nano.
It is twisted thread the present invention relates to a kind of melt electrospun nanofiber of spininess rotation twisting the preparation method comprises the following steps: fused materials entrance point
Runner between flowing plate and central axis, runner become narrow gradually from top to bottom, and melt uniformly flows into each single needle through conical deflector
In spray head.Heating rod insertion flow distribution plate is heated.High-voltage electrostatic field is formed between single needle spray head and electrode plate, worm and gear passes
Dynamic device band rotating ring is rotated to uniformly distributed single needle spray head, and under electric field force effect, fiber is stretched refinement.Fibre bundle is wound into
On a piece insulating bar, across the mesoporous of electrode plate, in receiving roll.Receiving roll is rotated by motor drive, to fibre
Dimension is received, revolving speed and the considerably advantageous regular collection in fiber of fiber falling speed, while fiber further stretches carefully
Change.The rotation speed of the uniformly distributed single needle spray head of annular is controlled by adjusting the revolving speed of motor, with the rotation of single needle spray head,
Fiber between spray head and receiving roll will do it twisting, and twisting angle can control nanofiber by controlling the revolving speed of motor
The twist.
By the introduction of technical solution above, compared with prior art, the present invention its advantage has:
1. the single needle spray head that transmission device drives annular uniformly distributed rotates, the twisting to bundles of nanofibers is realized, lead to
The revolving speed for crossing control motor can control the twist of fiber, improve the mechanical property of nanofiber.
2. receiving roll is located at immediately below electrode plate, high speed rotation is conducive to gather fiber to be orientated in dropping process,
Revolving speed and the considerably advantageous regular collection in fiber of fiber falling speed are conducive to the refinement of fibre diameter and gather the shape of long fibre
At.
3. by the revolving speed for adjusting motor, and then controlling the rotation speed of the uniformly distributed single needle spray head of annular, and then to control
The twisting angle of fiber processed, the nanometer for obtaining the different twists are twisted thread.
4. twisting thread by using the nanometer that syringe needle plug replacement single needle spray head can obtain different number of fiber, nanometer is improved
The applicability twisted thread.
5. the single needle spray head being circular layout and thin-walled pressure vessel bottom surface be using being threadedly coupled, convenient for the dismounting and change of syringe needle and clear
It washes.
Detailed description of the invention
A kind of melt electrospun nanofiber of Fig. 1 present invention spininess rotation twisting is twisted thread preparation facilities schematic diagram.
Fig. 2 is that the spininess arrangement of structure shown in Fig. 1 looks up diagrammatic cross-section.
Fig. 3 is the central axis and conical deflector partial cutaway schematic of structure shown in Fig. 1.
Fig. 4 is the syringe needle diagrammatic cross-section of structure shown in Fig. 1.
Fig. 5 is the syringe needle plug diagrammatic cross-section of structure shown in Fig. 1.
In figure: 1- heating rod；2- central axis；3- runner；The turning 4- head；5- extruder；6- flow distribution plate；7- ball；8-
Worm screw；9- thin-walled pressure vessel；10- copper ring；11- conical deflector；12- single needle spray head；13- worm gear；14- acrylic board with holes；15-
Electrode plate；16- HV generator；17- receiving roll.
Specific implementation method
A kind of melt electrospun nanofiber of present invention spininess rotation twisting is twisted thread preparation facilities, as shown in Figure 1, it is mainly wrapped
It includes: heating rod 1, central axis 2, runner 3, turning head 4, extruder 5, flow distribution plate 6, ball 7, worm screw 8, thin-walled pressure vessel 9, copper ring
10, conical deflector 11, single needle spray head 12, worm gear 13, acrylic board 14 with holes, electrode plate 15, HV generator 16 connects
Receive roller 17.5 end outlet of extruder is connected with the import of turning head 4.Flow distribution plate 6 and central axis 2 form runner 3, runner 3
It becomes narrow gradually, connects with the outlet of turning head 4 from top to bottom.Arrange copper ring 10 as sealing between 12 top of syringe needle and runner 3
Device.Melt uniformly flows into each single needle spray head 12 through runner 3 and conical deflector 11, ensure that the uniformity of charging.In
Mandrel 2 and flow distribution plate 6 are positioned using the shaft shoulder, and lower end uses with conical deflector 11 and is threadedly coupled.Heating rod 1 is inserted into flow distribution plate 6
It is heated.9 side surface lower end worm gear 13 of thin-walled pressure vessel forms transmission device (the also optional band of transmission device herein with worm screw 8
Spininess rotation twisting is realized in transmission, chain conveyer, gear drive etc., herein by taking Worm Wheel System as an example), bottom is evenly distributed with single needle spray
First 12.Ball 7 is placed in the mating part of flow distribution plate 6 and thin-walled pressure vessel 9, and change sliding friction reduces thin-walled appearance into rolling friction
Frictional force when device 9 rotates.Electrode plate 15 is connected with HV generator 16, is fixed on acrylic board 14 with holes
On, high-voltage electrostatic field, and the mesoporous of electrode plate 15 and single needle spray head 12 and conical deflector 11 are formed between single needle spray head 12
Center it is coaxial.Receiving roll 17 is placed in immediately below electrode plate 15, is connected by V belt translation with motor, is twisted thread for collecting.
A kind of melt electrospun nanofiber of present invention spininess rotation twisting is twisted thread preparation facilities.Worm screw 8, worm gear 13, thin-walled hold
Device 9 and single needle spray head 12 constitute the main component of spininess rotation twister.9 side wall lower ends part of thin-walled pressure vessel, which thickeies, is made snail
Wheel 13 forms transmission device with worm screw 8, and base circle is evenly arranged multiple single needle spray heads 12, as shown in Figure 2.Single needle spray head 12 with
Thin-walled pressure vessel 9 is using being threadedly coupled, as shown in figure 4, being conveniently replaceable and cleaning single needle spray head, and can be by using syringe needle
Plug, as shown in figure 5, replacement single needle spray head achievees the purpose that control number of fiber.
A kind of melt electrospun nanofiber of present invention spininess rotation twisting is twisted thread preparation facilities.Central axis 2 and flow distribution plate 6 use
Shaft shoulder positioning, lower end use with conical deflector 11 and are threadedly coupled.Runner 3 becomes narrow gradually from top to bottom, as shown in Figure 3.Melt
Through conical deflector 11, uniformly flows into each single needle spray head, ensure that the uniformity of charging.
A kind of melt electrospun nanofiber of present invention spininess rotation twisting is twisted thread preparation method, and the temperature of barrel is 180 DEG C, machine
Head in melt flow channel turning temperature be 220 DEG C, into conical deflector after flow into single needle nozzle temperature be 240 DEG C.Single needle spray
Head is that 10cm adjusts high-pressure electrostatic after polypropylene (PP6820) solid particle is added in barrel at a distance from electrode plate
14 voltage readings of device form high-voltage electrostatic field to 50kV between single needle spray head and electrode plate, form jet stream at single needle spray head and draw
It stretches to form superfine fibre.Meanwhile worm and gear drives multiple single needle spray head rotations, so that fiber reaches the effect of drawing-off and boundling
Fruit.Fiber is wound on insulating bar, across the mesoporous of electrode plate, is wound into receiving roll.Receiving roll passes through V belt translation and electricity
Motivation, which is connected, to rotate, and collection has the nanometer of orientation to twist thread.Single needle spray head is adjusted by controlling the revolving speed of motor
Rotation speed can realize the control action to the fiber twist, while the rotation of receiving roll can make fibre to the fiber orientation of whereabouts
Dimension is more uniform when twisting.When receiving roll gathering speed is 2500r/min, the fibers parallel degree of orientation of collection is
0.95, fiber orientation degree is fine, fibre diameter 400nm, adjusts motor speed to change the rotation speed of single needle spray head, thus
The nanometer that the different twists can be obtained is twisted thread.When the rotation speed of disk is 1000r/min, the fiber twisting angle of collection is
35 ° -40 °, greatly improve the mechanical property of fiber.
Claims (4)
- The preparation facilities 1. a kind of melt electrospun nanofiber of spininess rotation twisting is twisted thread, it is characterised in that: specifically include that heating rod, Central axis, runner, turning head, extruder, flow distribution plate, ball, worm screw, thin-walled pressure vessel, copper ring, conical deflector, single needle spray Head, worm gear, acrylic board with holes, electrode plate, HV generator and receiving roll, extruder are connected with turning head, turning Head lower end protrudes into runner；Conical deflector is used with central axis and is threadedly coupled, and coaxially arranged with thin-walled pressure vessel；Thin-walled holds Device side wall lower ends positions, which thickeies, is made worm gear, forms transmission device with endless screw electric motor, bottom, which is connected through a screw thread, to be circular layout Single needle spray head；Ball is used in the mating part of flow distribution plate and thin-walled pressure vessel, change sliding friction is rolling friction, when smaller rotation Frictional force；Arrange that copper ring occurs as sealing device, annular electro pole plate and high-pressure electrostatic between single needle spray head top and runner Device is connected, and is placed on acrylic board with holes, forms high-voltage electrostatic field with accepted roll；Melt is flowed simultaneously by multiple single needle spray heads Out, under electric field force effect, fiber is fallen on electrode plate, meanwhile, worm and gear drives the rotation of single needle spray head, so that fiber reaches The effect of drawing-off and boundling；Fiber is wound on insulating bar, across the mesoporous of electrode plate, is wound into receiving roll；Accepted roll It is placed in immediately below electrode plate, by V belt translation, is driven by a motor around center axis rotation, is collected into twisting thread for orientation.
- The preparation facilities 2. a kind of melt electrospun nanofiber of spininess rotation twisting according to claim 1 is twisted thread, feature exist In: ball is placed in the mating part of flow distribution plate and thin-walled pressure vessel.
- The preparation facilities 3. a kind of melt electrospun nanofiber of spininess rotation twisting according to claim 1 is twisted thread, feature exist In: single needle spray head plug replaces part single needle spray head.
- The preparation method 4. a kind of melt electrospun nanofiber of spininess rotation twisting is twisted thread, it is characterised in that: fused materials enter shunting Runner between plate and central axis, runner become narrow gradually from top to bottom, and melt uniformly flows into each single needle spray through conical deflector Arrange copper ring as sealing device in head, between single needle spray head top and runner；Heating rod insertion flow distribution plate is heated；Single needle High-voltage electrostatic field is formed between spray head and electrode plate, worm gearing drives circumferential uniformly distributed single needle spray head rotation, Under electric field force effect, fiber is stretched refinement；Fibre bundle is wound on an insulating bar, across the mesoporous of electrode plate, around In receiving roll；Receiving roll is rotated by motor drive, is received to fiber, revolving speed and fiber falling speed phase When, while the further slenderizing of fiber；The rotation speed of the uniformly distributed single needle spray head of annular is controlled by adjusting the revolving speed of motor Degree, with the rotation of single needle spray head, the fiber between spray head and receiving roll will do it twisting, and twisting angle can pass through control The revolving speed of motor controls the twist of nanofiber.
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| CN108796687B (en) * | 2018-05-21 | 2021-02-12 | 浙江理工大学 | Continuous preparation device and method for self-twisting nanofiber yarn |
| CN109750361A (en) * | 2019-03-22 | 2019-05-14 | 大连民族大学 | The electrospinning fibre controllable electric magnetic field injection experiment device of more solution ratios |
| CN113308768B (en) * | 2021-06-22 | 2022-06-21 | 青岛科技大学 | Electrostatic spinning superfine fiber twisting device and method |
| CN114134580B (en) * | 2021-11-24 | 2023-03-21 | 青岛科技大学 | Electrostatic spinning superfine fiber bundling system and method |
| CN115262051A (en) * | 2022-05-13 | 2022-11-01 | 北京化工大学 | Polymer melt differential down in-situ composite spinning device |
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| JP3910038B2 (en) * | 2001-10-18 | 2007-04-25 | 旭化成せんい株式会社 | Pre-oriented yarn package and manufacturing method thereof |
| JP4743194B2 (en) * | 2006-12-07 | 2011-08-10 | パナソニック株式会社 | Nanofiber spinning method and apparatus |
| JP4803113B2 (en) * | 2007-05-29 | 2011-10-26 | パナソニック株式会社 | Nanofiber compounding method and apparatus |
| JP5135638B2 (en) * | 2008-07-25 | 2013-02-06 | パナソニック株式会社 | Nanofiber compounding method and apparatus |
| CN203229599U (en) * | 2013-03-27 | 2013-10-09 | 吴江市金平华纺织有限公司 | Spinning and yarn forming machine |
| CN105133054B (en) * | 2015-10-10 | 2017-04-26 | 北京化工大学 | Supergravity polymer differential electrostatic spinning device and supergravity polymer differential electrostatic spinning method |
| CN206157281U (en) * | 2016-11-07 | 2017-05-10 | 北京化工大学 | Fuse -element electricity of rotatory twisting of many needles spins nanometer preparation facilities of twisting thread |
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