CN106868675A - A kind of continuous preparation device of nanofiber covering yarn - Google Patents
A kind of continuous preparation device of nanofiber covering yarn Download PDFInfo
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- CN106868675A CN106868675A CN201710056690.6A CN201710056690A CN106868675A CN 106868675 A CN106868675 A CN 106868675A CN 201710056690 A CN201710056690 A CN 201710056690A CN 106868675 A CN106868675 A CN 106868675A
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- nanofiber
- tubaeform
- yarn
- secondary sink
- spinning head
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
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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
- D01D13/00—Complete machines for producing artificial threads
-
- 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
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0015—Electro-spinning characterised by the initial state of the material
- D01D5/003—Electro-spinning characterised by the initial state of the material the material being a polymer solution or dispersion
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/0007—Electro-spinning
- D01D5/0061—Electro-spinning characterised by the electro-spinning apparatus
- D01D5/0069—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
-
- 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H13/00—Other common constructional features, details or accessories
- D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
- D01H13/045—Guide tube
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a kind of continuous preparation device of nanofiber covering yarn, belong to electrostatic spinning and complex yarn production technical field；The symmetrically placed lower section both sides in tubaeform secondary sink of left and right sides spinning head of the device, and be connected with high-pressure electrostatic positive pole respectively；L-shaped bobbin winoler one end with good deformation and recovery capacity is fixedly connected with tubaeform secondary sink heavy caliber end, and with its common rotation；Tension piece is set above tubaeform secondary sink, sandwich layer yarn is imported through tension piece and stainless steel thread tube, and nanofiber covering yarn is formed after the nano fiber coated produced by both sides spinning head, after being derived through the twizzle immediately below tubaeform secondary sink after it on spool；The present invention realizes continuous production of the nanofiber to cladding and the complex yarn completely of sandwich layer yarn, improves the throughput rate and utilization rate of nanofiber, and gained nanofiber covering yarn pattern is good, the degree of orientation is higher.
Description
Technical field
The present invention relates to a kind of spinning device of novel composite yarn, more particularly to a kind of nanofiber covering yarn it is continuous
Preparation facilities, belongs to electrostatic spinning and complex yarn production technical field.
Background technology
Electrostatic spinning is a kind of special nanometer and Sub-micro Fibers manufacturing technology, and the technology has process is simple, height
The characteristics of effect low consumption.Products obtained therefrom has the advantages that porosity is high, specific surface area is big, adsorptivity is strong, is urged in biological medicine, chemistry
The fields such as change, membrane filtration, electronic device have boundless application prospect.
Electrostatic spinning technique carries out jet spinning by the highfield of (usually thousands of to the tens thousand of volts) generations of high-pressure electrostatic
Prepare nanometer and Sub-micro Fibers.Polymer solution, emulsion or molten mass overcome its own face after high-pressure electrostatic is applied
Power simultaneously sprays electrified jet；The electrified jet for being formed in the presence of electrostatic repulsion further cleave, refinement, formed nanometer and
Sub-micro Fibers beam；Fibre bundle rapid curing with the volatilization of solvent, and be eventually deposited in reception device.
However, Electrospun nano-fibers are general exist in the form of non-woven mat or orientation fiber, and by its mechanical property
Influence have the shortcomings that twisting, braiding are difficult, it is impossible to obtain extensive use as conventional textile fabric material.If can combine
The strength advantage of conventional yarn, conventional yarn is effectively combined with Electrospun nano-fibers, is formed by nanofiber bag
The novel composite yarn for covering, will certainly will further widen applications to nanostructures field and scope.
Traditional textile yarn can be generally divided into composite yarn of staple yarn, continuous filament yarn, chopped fiber and continuous filament yarn etc.,
Species is various, multi-size.Such yarn has continuous length and excellent mechanical property very long, in clothes, ornaments, biology
Medicine and other fields are widely used.
Up to the present, existing some Electrospun nano-fibers cladding conventional yarn prepares the report of enhanced complex yarn
Road, such as Zhou Fenglei [Zhou F L, Surface and Coatings Technology, 2009,204 (5):621-628] etc. will
PET (PET) long filament is drawn through spinning zone, has obtained being covered by polyethylene glycol oxide (PEO) nanofiber
Complex yarn；Yang great Xiang [Yang great Xiang, armored force engineering institute journal, 2011,25 (3), 78-81] et al. is also by same
Method has obtained polyacrylonitrile (PAN) nanofiber complex yarn.But the set composite that the method is used cannot realize Nanowire
Dimension is coated with the rotation of conventional yarn, the complex yarn of preparation do not only exist cladding not exclusively, coating thickness is uneven lacks
Point, and nanofiber wastes problem seriously, and the nanofiber beyond yarn run trace cannot be used effectively.Chinese patent
CN 102912502B disclose the spinning apparatus of a kind of nanofiber and filament composite yarn, and the device is by physical absorption
Be attached to nanofiber on enhancing long filament by method, and the peeling of nanofiber is prevented by the Split Down of two threads.This is answered
Attach together to put and there is also that nanofiber utilization rate is low, coat incomplete drawback, nanofiber content in prepared complex yarn
It is less, it is unfavorable for the performance of nanofiber effect.Dabirian[Dabirian F,Polymer Engineering&
Science,2012,52(8):1724-1732] etc. using rotation round metal table apparatus sandwich layer yarn is coated, have
Preferable novelty, and have collected nanofiber composite yarn.But the mode of connection of the device is limited to a certain extent
The output speed of nanofiber, and the orientation of yam surface nanofiber is not easy to control, causes complex yarn because of fluffy more piece
And poor performance；In addition, have a large amount of nanofibres deposits in spinning process on metal round platform surface, nanofiber waste problem according to
So exist.
The content of the invention
The technical problems to be solved by the invention are to overcome the deficiencies in the prior art, there is provided a kind of nanofiber covering yarn
Be combined with each other for functional nano-fiber and conventional yarn well by continuous preparation device, the device, obtains with nano effect
The nanofiber covering yarn good with the pattern of yarn enhancement effect.
A kind of continuous preparation device of nanofiber covering yarn proposed by the present invention, including left side spinning head and right side spinneret
Head, twizzle, tubaeform secondary sink, insulation tube, stainless steel thread tube, tension piece, spool, for support twizzle and
The fixed support of stainless steel thread tube and two motors, it is characterised in that the device also includes thering is deformation and recovery capacity
L-shaped bobbin winoler；Wherein, the left side spinning head and the symmetrically placed lower section two in tubaeform secondary sink of right side spinning head
Side, and be connected with high-pressure electrostatic positive pole respectively；One end of the L-shaped bobbin winoler is fixed with tubaeform secondary sink heavy caliber end
Connection, and rotated jointly with tubaeform secondary sink；The insulation tube, stainless steel thread tube and tubaeform secondary sink three
Person is coaxially disposed, and insulation tube passes through tubaeform secondary sink small-caliber end jointly after being wrapped in stainless steel thread tube outside, no
Rust steel thread tube is connected with high-pressure electrostatic negative pole；The tension piece is located at tubaeform secondary sink top, and sandwich layer yarn is through opening
Power piece and stainless steel thread tube are imported, and form nanofiber covering yarn after the nano fiber coated produced by both sides spinning head；
The nanofiber covering yarn is after the twizzle derivation immediately below tubaeform secondary sink on spool；It is described
Tubaeform secondary sink and spool are driven by the first motor and the second motor respectively.
The L-shaped bobbin winoler is by L-shaped hard wire and is enclosed within rotatable capillary module on the outside of the hard wire and constitutes；
Wherein, L-shaped hard wire two ends are 45 ° with horizontal angle, and the hard wire is provided with the pact of constraint capillary module sliding
Beam solder joint, the constraint solder joint matches with the closing at capillary module two ends.
The present invention relates to a kind of continuous preparation device of nanofiber covering yarn, there is advantages below compared with existing apparatus
And good effect：
The yarn traction of collection sandwich layer, prepared by nanofiber, twisting is complex as a whole, and realizes the continuous of nanofiber covering yarn
Production；Both sides spinning head is connected with high-pressure electrostatic positive pole, significantly improves the throughput rate of nanofiber；By L-shaped coiling
The quick rotation of device and tubaeform secondary sink, realizes layer by layer cladding of the nanofiber in sandwich layer yarn, coats complete, close
Reality and thickness is uniform；L-shaped bobbin winoler surface sets rotatable capillary module, and its good deformation and recovery capacity are good
Solve the problems, such as the waste of nanofiber, it is to avoid the local accumulation of nanofiber, improve the utilization rate of nanofiber；Using
Nanofiber covering yarn morphology controllable prepared by the device, the nanofiber degree of orientation is high；Preparation facilities simple structure, operation is held
Easily, it is adapted to various spinning solutions.
Brief description of the drawings
Fig. 1 is nanofiber covering yarn continuous preparation device schematic diagram of the present invention；
Fig. 2 is the partial structural diagram of L-shaped bobbin winoler and tubaeform secondary sink in the present invention；
Fig. 3 is a kind of nanofiber covering yarn design sketch prepared using apparatus of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and specific implementation case to a kind of continuous preparation of nanofiber covering yarn proposed by the present invention
Device is described further：
The present invention relates to a kind of continuous preparation device of nanofiber covering yarn, its structure is as shown in figure 1, the device includes
Left side spinning head 1 and right side spinning head 2, the L-shaped bobbin winoler 3 with deformation and recovery capacity, twizzle 4, tubaeform auxiliary connect
Receive device 6, insulation tube 8, stainless steel thread tube 9, tension piece 10, spool 14, for supporting twizzle and stainless steel thread tube
Fixed support 19 (refers to Fig. 2), two motors；Wherein, left side spinning head 1 and right side spinning head 2 are symmetrically placed in tubaeform auxiliary
Help the lower section both sides of receiver 6, and be connected with high-pressure electrostatic positive pole 13 respectively；One end of L-shaped bobbin winoler 3 connects with tubaeform auxiliary
Receive the heavy caliber end of device 6 to be fixedly connected, and rotated jointly with tubaeform secondary sink 6；Insulation tube 8, stainless steel thread tube 9 and loudspeaker
The three of shape secondary sink 6 is coaxially disposed, and insulation tube 8 passes through tubaeform auxiliary jointly after being wrapped on the outside of stainless steel thread tube 9
The small-caliber end of receiver 6, stainless steel thread tube 9 is helped to be connected with high-pressure electrostatic negative pole 12；The tension piece 10 is located at tubaeform auxiliary
Receiver top is helped, sandwich layer yarn 15 is imported through tension piece 10 and stainless steel thread tube 9, and the nanometer produced by both sides spinning head
Nanofiber covering yarn 11 is formed after fiber cladding；The nanofiber covering yarn is through being located at immediately below tubaeform secondary sink
After the derivation of twizzle 4 on spool 14；Tubaeform secondary sink 6 and spool 14 are respectively by the first motor 7 and
Two motors 5 drive.
The L-shaped bobbin winoler 3 is by L-shaped hard wire 16 and is enclosed within rotatable capillary group on the outside of the L-shaped hard wire
Part 17 is constituted, as shown in Figure 2.Wherein, a diameter of 0.5mm of L-shaped hard wire 16, uses between tubaeform secondary sink 6
Welding manner is connected, and L-shaped hard wire two ends are 45 ° with horizontal angle, with preferably deformation and recovery capacity, stress
Structure resets good after elimination；The internal diameter of the capillary module 17 is 1mm, wall thickness 0.2mm, and shell nosing treatment is done at two ends, can
Motion is rotated freely under external force；L-shaped hard wire 16 is provided with constraint solder joint 18, the receipts with the two ends of capillary module 17
Mouth matches so that capillary module 17 cannot slide along the axial direction of L-shaped hard wire 16；It is produced in spinning process
Nanofiber is influenceed concentration to be arranged between L-shaped bobbin winoler 3 and sandwich layer yarn 15 by electrostatic field, and with tubaeform secondary sink
6 and the rotation of L-shaped bobbin winoler 3 be coated on layer by layer on sandwich layer yarn 15；With the quick winding of nanofiber, fibre length is continuous
Shorten, so as to produce stress between L-shaped bobbin winoler 3 and sandwich layer yarn 15, cause L-shaped hard wire 16 slowly to deform, now, core
Layer yarn 15 twists the nanofiber on the surface of capillary module 17 in the lump, has effectively evaded the local accumulation of nanofiber；Treat
Nanofiber twisting finishes rear stress elimination, and it is good that L-shaped bobbin winoler 3 resets rapidly and structure resets, enter immediately it is next plus
Circulation is twisted with the fingers, it is reciprocal with this.The application of L-shaped hard wire 16 and capillary module 17 significantly improves the utilization rate of nanofiber, very
The good waste for solving the problems, such as nanofiber.
Remaining part of the present invention can be realized using conventional products, wherein：
The left side spinning head 1 and right side spinning head 2 with sandwich layer yarn 15 as axis, it is level, symmetrically placed, and and high pressure
Electrostatic positive pole 13 is connected, and voltage is adjustable, adjustable extent 0-50kV；Under same experimental conditions, this mode of connection and conventional connections
Mode (left side spinning head 1 connects high-pressure electrostatic positive pole, and right side spinning head 2 connects high-pressure electrostatic negative pole) is compared, the yield of nanofiber
Improve more than 25%.
The relative altitude at left side spinning head 1 and the place plane of right side spinning head 2 and the heavy caliber end of tubaeform secondary sink 6
Adjustable, adjustable extent is 0-25cm；The distance between left and right sides spinning head is also adjustable, and adjustable extent is 15-40cm.
The tubaeform secondary sink 6 is hollow shell structure, and heavy caliber end diameter 10cm is not arranged in L-shaped for collecting
Nanofiber on bobbin winoler 3, and be wound on sandwich layer yarn 15；The rotation of tubaeform secondary sink 6 is by the second electricity
Machine 7 drives, and rotating speed is adjustable, adjustable extent 0-800rpm.
The stainless steel thread tube 9 be external diameter 4mm, the conductive steel pipe of wall thickness 0.5mm, position is by (such as Fig. 2 of fixed support 19
It is shown) regulation, coaxial with tubaeform secondary sink 6, contactless placement after being insulated through insulation tube 8, not with the He of L-shaped bobbin winoler 3
The rotation of tubaeform secondary sink 6 and rotate；Stainless steel thread tube 9 is connected with high-pressure electrostatic negative pole 12, and voltage is adjustable, adjustable
Scope -30-0kV.
The twizzle 4 is located on the axis of stainless steel thread tube 9, for fixing sandwich layer yarn 15 and nanofiber cored
The wire direction of yarn 11；Twizzle 4 is also fixed by fixed support 19, and it is adjustable with the relative altitude of the bottom of L-shaped bobbin winoler 3, can
Adjust scope 0-20cm.
The spool 14 is driven by the first motor 5, and volume yarn speed is adjustable, adjustable extent 0-140rpm.
Composite spinning is carried out using the continuous preparation device of nanofiber covering yarn of the invention, a kind of Nanowire has been obtained
Dimension covering yarn, concrete technology step is as follows：
(1) electrostatic spinning：The polymer dope that will be prepared is added in liquid dispensing apparatus, and according to environmental factor, molten
Liquid property adjustments Optimal Experimental parameter, makes spinning solution obtain nanofiber through left side spinning head 1 and the spinning of right side spinning head 2；It is left
Side spinning head 1 and right side spinning head 2 connect high-pressure electrostatic positive pole 13；
(2) sandwich layer yarn 15 is introduced through tension piece 10 and stainless steel thread tube 9, both sides spinning head is produced through electrostatic spinning
Nanofiber be arranged on L-shaped bobbin winoler 3, and with L-shaped bobbin winoler 3 and tubaeform secondary sink 6 quick rotation layer by layer
It is coated on sandwich layer yarn 15, forms nanofiber covering yarn 11；The stainless steel thread tube connects high-pressure electrostatic negative pole 12；
(3) the nanofiber covering yarn 11 for being formed through lower section twizzle 4, on spool 14；By the first motor 5
Spool 14 is driven, the uninterrupted traveling of sandwich layer yarn 15 and the continuous production of nanofiber covering yarn 11 is realized.
Embodiment one
(1) lithium chloride of the poly (PMIA) that mass fraction is 12.6% is prepared first
(LiCl)/dimethylacetylamide (DMAC) initial soln, the mass fraction of Chlorine in Solution lithium (LiCl) is 3.0%.
(2) phase transition function ingredients hydroxypropyl base cellulose fatty acid mixed ester (HPCMEs) of certain mass is added to above-mentioned
In PMIA initial solns, and a small amount of hexamethylene/dimethylbenzene/normal octane (mass ratio is 1/2/2) ternary is added in composite solution
Mixed liquor, stirring is completely dissolved to HPCMEs, obtains homogeneous spinning emulsion.In spinning emulsion, phase transition function component HPCMEs
It is 1.5/1 with the mass ratio of PMIA, hexamethylene/dimethylbenzene/normal octane ternary mixed liquor is 1/2 with the mass ratio of DMAC.
(3) above-mentioned spinning emulsion is added in the two spinning syringes in left and right, the delivery rate for setting solution is 150 μ
L/h；Spinning syringe in the left and right sides is connected with left side spinning head 1 and right side spinning head 2 respectively, and left side spinning head 1 and right side are sprayed
The symmetrical, horizontal positioned of silk first 2, spacing between the two is set as 20cm；Left side spinning head 1 and right side spinning head 2 are and high pressure
Electrostatic positive pole is connected, and spinning voltage is 14kV；Horizontal plane and the heavy caliber transverse plane of tubaeform secondary sink 6 where spinning head
Vertical range is 10cm；Stainless steel thread tube 9 is connected with high-pressure electrostatic negative pole 12, and voltage is set to -2kV；Ambient temperature and
Relative humidity is respectively 25.0 ± 2.3 DEG C and 45 ± 4%.
(4) while electrostatic spinning prepares nano phase change fiber, by the poly- polyvinyl of sandwich layer (PVA) yarn through tension piece 10, no
Rust steel thread tube 9 is imported, and the yarn count of yarn is 40s；Yarn forms nanofiber covering yarn 11 after nano fiber coated, through leading
Yarn hook 4 is on spool 14；Distance of the twizzle 4 away from the bottom of L-shaped bobbin winoler 3 is 10cm.
(5) speed setting of L-shaped bobbin winoler 3 and tubaeform secondary sink 6 is 250rpm, the speed setting of spool 14
It is 0.8rpm.
(6) as shown in figure 3, the pattern of gained nanofiber covering yarn 11 is good, the degree of orientation of outer layer nanofiber is higher,
And yarn cladding is complete, closely knit, uniform.Through measurement, complex yarn diameter is about 174 μm, the average diameter of outer layer nanofiber
About 350nm, nano fiber coated thickness degree is about 25 μm.
Claims (4)
1. a kind of continuous preparation device of nanofiber covering yarn, including left side spinning head and right side spinning head, twizzle, loudspeaker
Shape secondary sink, insulation tube, stainless steel thread tube, tension piece, spool, for supporting twizzle and stainless steel thread tube
Fixed support and two motors, it is characterised in that the device also includes the L-shaped bobbin winoler with deformation and recovery capacity；Its
In, the left side spinning head and the symmetrically placed lower section both sides in tubaeform secondary sink of right side spinning head, and respectively with height
Pressure electrostatic positive pole is connected；One end of the L-shaped bobbin winoler is fixedly connected with tubaeform secondary sink heavy caliber end, and with loudspeaker
Shape secondary sink rotates jointly；The insulation tube, stainless steel thread tube and tubaeform secondary sink three are coaxially disposed, absolutely
Edge pipe passes through tubaeform secondary sink small-caliber end, stainless steel thread tube and height jointly after being wrapped in stainless steel thread tube outside
Pressure electrostatic negative pole is connected；The tension piece is located at tubaeform secondary sink top, and sandwich layer yarn is led through tension piece and stainless steel
Spool is imported, and forms nanofiber covering yarn after the nano fiber coated produced by both sides spinning head；The nanofiber cored
Yarn is after the twizzle derivation immediately below tubaeform secondary sink on spool；The tubaeform auxiliary reception
Device and spool are driven by the first motor and the second motor respectively.
2. the continuous preparation device of nanofiber covering yarn according to claim 1, it is characterised in that the L-shaped coiling
Device is by L-shaped hard wire and is enclosed within rotatable capillary module on the outside of the hard wire and constitutes；Wherein, L-shaped hard wire two ends
Be 45 ° with horizontal angle, the hard wire be provided with constraint capillary module sliding constraint solder joint, the constraint solder joint with
The closing at capillary module two ends matches.
3. the continuous preparation device of nanofiber covering yarn according to claim 2, it is characterised in that the L-shaped hard steel
A diameter of 0.5mm of silk.
4. the continuous preparation device of nanofiber covering yarn according to claim 2, it is characterised in that the capillary group
The internal diameter of part is 1mm, wall thickness is 0.2mm.
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| CN109137199A (en) * | 2018-10-24 | 2019-01-04 | 东华大学 | A kind of preparation facilities and method being orientated controllable electrostatic spinning nano fiber covering yarn |
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| CN103088478A (en) * | 2013-02-22 | 2013-05-08 | 东华大学 | Continuous preparation device and method for orientated electrostatic spinning nanofiber yarn |
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