CN107574486A - A kind of tactile drawing device for spinning prepared for micro/nano-fibre and method - Google Patents
A kind of tactile drawing device for spinning prepared for micro/nano-fibre and method Download PDFInfo
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- CN107574486A CN107574486A CN201710768412.3A CN201710768412A CN107574486A CN 107574486 A CN107574486 A CN 107574486A CN 201710768412 A CN201710768412 A CN 201710768412A CN 107574486 A CN107574486 A CN 107574486A
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Abstract
The present invention relates to a kind of tactile drawing device for spinning prepared for micro/nano-fibre and method, belong to textile technology and functional fibre preparation field.A kind of tactile drawing device for spinning prepared for micro/nano-fibre, the device includes liquid supply assembly, shearing array, motor and contact element, the liquid supply assembly that stable flow velocity is provided to contact element is connected by pipeline with the contact element for accommodating spinning solution, shearing array rotates with motor connection and by motor driven, the shearing array is made up of disk and more shearing rods being arranged on disk, and contact element is adjacent with shearing rod.Compared with electrostatic spinning, touch and draw the simple cost of spinning equipment low, concentration of dope that can than Static Spinning silk spinning higher safer without high pressure, spinning efficiency is high.Compared with centrifugal spinning, touch and draw device for spinning compact, rotating speed needed for motor is small, and required precision is low.
Description
Technical field
The present invention relates to it is a kind of for micro/nano-fibre prepare tactile drawing device for spinning and method, belong to textile technology and
Functional fibre preparation field.
Background technology
Micro/nano-fibre material is used extensively due to having the advantages that fibre diameter is small, specific surface area is big, porosity is high
In tissue engineering bracket, drug delivery, filter medium, artificial blood vessel, biochip, nano-sensor, optics, composite etc.
Field.Micro/nano-fibre film obtains the concern of numerous researchers because of the significant nanoscale effect of micro/nano-fibre.Nanowire
The preparation method of dimension has：Spin processes, molecular engineering prepare method and biological preparation method etc..Wherein, Static Spinning and centrifugation spin, as work as
The preceding conventional spinning process for preparing single continuous micro/nano-fibre, is utilized respectively electrostatic field force and centrifugal force tension spinning solution
Drop forms fiber.Both spinning process " though One's meritorious military service is illustrious ", but still be respectively present following inherent shortcoming and limit the party
Method business large-scale use：Device complexity yields poorly, technique harshness voltage is high, and equipment rotary speed precision is high, bulky receipts silk
Difficulty etc. is limited to.Therefore also have from practical and application demand with a distance from very big in terms of cost, scale, the controllability Study.
The content of the invention
The present invention provides a kind of equipment the simple compact tactile drawing device for spinning for being used for micro/nano-fibre and preparing.
The present invention provides a kind of new tactile drawing spinning process for preparing micro/nano-fibre, and spinning efficiency is high, safety easily behaviour
Work, applicability are wide.
The present invention solves the technical scheme that its technical problem uses：
It is a kind of for micro/nano-fibre prepare tactile drawing device for spinning, the device include liquid supply assembly, shearing array, motor and
Contact element, the liquid supply assembly that stable flow velocity is provided to contact element are connected by pipeline and the contact element for accommodating spinning solution
Connect, shearing array rotates with motor connection and by motor driven, and the shearing array is by disk and is arranged at more on disk
Root shearing rod composition, contact element are adjacent with shearing rod.
In the present invention, liquid supply assembly is made up of syringe pump and heater, and shearing array is made up of shearing rod and disk,
Shearing array center is moved with associated electric motor, and the rotation of array high speed is sheared by motor driven, contact element for internal cavities,
Bottom is provided with liquid injection port, tip is provided with the bullet of liquid outlet, receives the given shape framework that silk annex is motor driven rotation.Touch
When drawing spinning, liquid supply assembly provides the spinning solution of stable flow velocity and specified temp to contact element internal cavities, and from contact portion
Part apex partis petrosae end liquid outlet flows out to form drop, and shearing array highdensity plywood under motor driven stretches the spinning droplet formation liquid
Bridge, and further stretch, solidify in a fluid, silk annex or shearing array are collected in into fibre, so as to prepare high orientation
Nanofiber.Motor speed is generally 1000-4000rpm.
Preferably, the diameter range of the shearing rod is 0.5-5mm, the length range for shearing rod is 10-500mm, is cut
Cut rod to be uniformly distributed as symmetrical centre using the center of disk perpendicular to disk plane, shearing rod, shear the fixing end and disk of rod
Centre distance >=10mm.It may further be preferable that shearing rod radical is even number, shearing rod is at least 2.Preferably, shear
Rod quantity 10-40 roots, diameter 0.5-3mm, length 50-500mm, shearing rod is perpendicular to disk plane, centered on disc centre
Symmetrically and evenly it is distributed, shearing rod and disc centre distance >=20mm.
Preferably, shearing rod surface hydrophobicity oleophobic, 150 ° of water contact angle ＞, oily 90 ° of contact angle ＞.Further preferred
It is that the shearing bar matter is selected from copper, iron, aluminium, aluminium alloy, stainless steel and its alloy, silicate（Glass, ceramics etc.）, poly- four
PVF（PTFE）, polystyrene（PS）, polyvinyl chloride（PVC）, polymethyl methacrylate（PMMA）, acrylonitrile-butadiene-
Styrene copolymerized compound（ABS）Etc. polymer-based plastics, and above-mentioned material is compound.
Preferably, liquid supply assembly is made up of syringe pump and heater.Syringe pump stores spinning solution and provides stabilization
Flow velocity, flow velocity 2-2000mL/h, heater provide spinning temperature needed for spinning solution, 25-400 DEG C of heating temperature range.Enter one
Step, liquid supply assembly control spinning flow velocity 10-1000mL/h, spinning solution temperature control is at 25-300 DEG C.
Preferably, contact element is the cone of metal material, the cavity for accommodating spinning solution, cone base are provided with cone
Center is provided with liquid injection port, and cone tip is provided with liquid outlet.Spinning solution is injected the cavity of contact element by liquid supply assembly from liquid injection port,
And extrude from liquid outlet and be sheared array high speed shear in liquid outlet and be drawn into liquid bridge.
Preferably, a diameter of 0.5-10mm of the liquid outlet of cone, cone tip is adjacent with the free end for shearing rod, shearing
Rod free end is sheared during array rotation with cone tip at a distance of 0.1-2.0mm.Further, liquid outlet diameter 0.5-5mm.
Preferably, the cone internal cavities have two or more chamber, separated independently of each other between chamber, in onion shape
Jacket structure or simultaneously column distribution.It may further be preferable that each chamber is provided with an independent liquid outlet, when each chamber is in onion
When shape jacket structure is distributed, each liquid outlet section is in concentric annular；When each chamber is in simultaneously column distribution, each liquid outlet section is in honeybee
Nest shape.
Preferably, it is described it is tactile draw device for spinning also include fly the Silk Road footpath on collect be scattered fiber receipts silk annex be by
The framework of motor driven rotation, receive the shape of silk annex include the flat shape such as circle, strip, triangle, taper or spheroid,
The build shape such as cube, calabash shape, and the variant of above-mentioned shape.
One kind, which is touched, draws spinning process, and this method utilizes physical shear power and tensile force, contact, shearing and stretch spinning drop
Liquid bridge is formed, is solidified into silk in a fluid.This method can use described tactile drawing device for spinning, and detailed process is：The confession
Liquid component provides the spinning solution of stable flow velocity to contact element, and shearing array highdensity plywood stretching under the drive of motor is touched
Spinning droplet formation liquid bridge on point member tip, and in a fluid further stretching, solidification, be collected in into fibre silk annex or
Array is sheared, obtains the nanofiber of high orientation.Fluid includes the gaseous environments such as air, nitrogen, oxygen, inert gas, with
And the settable liquid such as water, organic solvent bath.
It is characteristic of the invention that：Method of electrostatic spinning and centrifugal spinning are different from, touches and draws spin processes to use shearing force and drawing
Stretch prepares micro/nano-fibre.Compared with electrostatic spinning, touch and draw the simple cost of spinning equipment low, it is safer without high pressure, can ratio
The higher concentration of dope of Static Spinning silk spinning, spinning efficiency are high.Compared with centrifugal spinning, touch and draw device for spinning compact, electricity
Rotating speed is small needed for machine, and required precision is low.
Brief description of the drawings
Fig. 1 is the structural representation for the tactile drawing device for spinning that embodiment 1 is related to；
Fig. 2 is the structural representation for the tactile drawing device for spinning that embodiment 2 is related to；
Fig. 3 is the onion type of the present invention（It is left）With parallel distribution（It is right）Tapered contact feature profile figure and corresponding liquid outlet section
Figure；
Fig. 4 is nanofiber scanning electron microscope diagram prepared by embodiment 1.
Label declaration：1 reservoir；2 propellers；3 heaters；4 pipelines；5 cones；6 shearing rods；7 disks；8 motors；9 is fine
Tie up beam；10 cubic type wire frame collectors；11 second motors；12 chamber a；13 chamber b；14 chamber c；15 liquid injection port a；16 fluid injections
Mouth b；17 liquid injection port c；18 liquid outlets.
Embodiment
Below by specific embodiment, technical scheme is described in further detail.It should be appreciated that this hair
Bright implementation is not limited to the following examples, and any formal accommodation and/or change made to the present invention will all fall
Enter the scope of the present invention.
In the present invention, if not refering in particular to, all parts, percentage are unit of weight, used equipment and raw material etc.
It is commercially available or commonly used in the art.Method in following embodiments, it is the normal of this area unless otherwise instructed
Rule method.
Embodiment 1：
A kind of tactile drawing device for spinning prepared for micro/nano-fibre, as shown in figure 1, by liquid supply assembly, shearing array, motor 8
And contact element composition.The liquid supply assembly that stable flow velocity is provided to contact element accommodates touching for spinning solution by pipeline 4 with being used for
Point part connection, shearing array are connected with motor 8 and rotated by motor driven, and the shearing array is by disk 7 and is arranged at
More shearing rods 6 on disk 7 form, and contact element is adjacent with shearing rod 6.
Liquid supply assembly is made up of syringe pump and heater 3, and syringe pump is made up of reservoir 1 and propeller 2.Syringe pump stores up
Deposit spinning solution and stable flow velocity is provided.
As shown in figure 3, contact element is the cone 5 of aluminum alloy material, the cavity for accommodating spinning solution, cone are provided with cone 5
Body bottom centre is provided with liquid injection port, and cone tip is provided with liquid outlet 18.The reservoir 1 of liquid injection port and liquid supply assembly passes through pipeline 4
It is connected, inside is provided with 1 chamber, and cone tip is provided with 1 liquid outlet, apex partis petrosae end liquid outlet diameter 5mm.Spinning solution is by feed flow
Component injects the cavity of contact element from liquid injection port, and is extruded from liquid outlet and be sheared the stretching of array high speed shear in liquid outlet
Into liquid bridge.
Cone tip and the free end for shearing array glass rod are adjacent, glass rod tip and cone tip when shearing array rotation
At a distance of 1.5mm.
In the present embodiment, shearing array has the effect for collecting fiber concurrently.Shearing array center is moved with associated electric motor, by motor
Shearing array is driven to rotate.It is glass material to shear array shearing rod used, and glass rod is modified through fluorine-contained finishing agent, and glass rod surface is dredged
Water oleophobic, 150 ° of water contact angle ＞, oily 90 ° of contact angle ＞, glass rod radical 30, diameter 1.5mm, length 200mm, glass rod is vertical
In disk plane, a circle, glass rod and disc centre distance 350mm are symmetrically and evenly distributed centered on disc centre.
One kind, which is touched, draws spinning process, and this method utilizes physical shear power and tensile force, contact, shearing and stretch spinning drop
Liquid bridge is formed, is solidified into silk in a fluid.Using the device of the present embodiment touch when drawing spinning, liquid supply assembly is to contact element
Internal cavities provide the spinning solution of stable flow velocity and specified temp, and flow out to form liquid from contact element apex partis petrosae end liquid outlet
Drop, shearing array highdensity plywood under motor driven stretches the spinning droplet formation liquid bridge, and further stretches in atmosphere, be solid
Change, shearing array is collected in into fibre, so as to prepare the bundles of nanofibers of high orientation.Motor speed is generally 1000-
2000rpm。
Spinning solution configures：The polyacrylonitrile that molecular weight is 200000 is dissolved in DMF, is formed homogeneous molten
Liquid, mass fraction 30%.Liquid supply assembly controls spinning flow velocity 300mL/h, and spinning solution temperature control is at 80 DEG C.The nanometer of preparation
Fiber scanning electron microscope diagram is shown in Fig. 4.Compared with electrostatic spinning, touch and draw the simple cost of spinning equipment low, more pacify without high pressure
Entirely, concentration of dope that can be higher than Static Spinning silk spinning, spinning efficiency is high, the 1-2 order of magnitude higher than electrostatic spinning yield.With from
Heart spinning is compared, and is touched and is drawn device for spinning compact, rotating speed needed for motor is small, 1 order of magnitude lower than centrifugal spinning rotating speed, precision
It is required that poorly rated property is strong.
Embodiment 2：
A kind of tactile drawing device for spinning prepared for micro/nano-fibre, with embodiment 1, difference is concrete structure：Also wrap
A receipts silk annex is included, silk annex is received directly over shearing array at 30mm, the vertical of rotation is driven for the second motor 11
Cube molded line frame collector 10, it is copper cash frame, and its rotating speed is 500rpm, and rotation direction is opposite with shearing array rotation direction.
In the present embodiment, glass rod radical 20, diameter 1.5mm, length 200mm, glass rod is perpendicular to disk plane, with disk
A circle, glass rod and disc centre distance 450mm are symmetrically and evenly distributed centered on center.Cone as contact element is stainless steel
Material, apex partis petrosae end liquid outlet diameter 8mm.Glass rod tip and cone are sophisticated at a distance of 2.0mm when shearing array rotation.
One kind, which is touched, draws spinning process, and this method utilizes physical shear power and tensile force, contact, shearing and stretch spinning drop
Liquid bridge is formed, is solidified into silk in a fluid.Using the device of the present embodiment touch when drawing spinning, liquid supply assembly is to contact element
Internal cavities provide the spinning solution of stable flow velocity and specified temp, and flow out to form liquid from contact element apex partis petrosae end liquid outlet
Drop, shearing array highdensity plywood under motor driven stretches the spinning droplet formation liquid bridge, and further stretches in atmosphere, be solid
Change, be collected in silk annex into fibre, so as to prepare the bundles of nanofibers of high orientation.Motor speed is generally 1000-
2000rpm。
Spinning solution configures：The polyacrylonitrile that molecular weight is 200000 is dissolved in DMF, is formed homogeneous molten
Liquid, mass fraction 40%.Liquid supply assembly controls spinning flow velocity 200mL/h, and spinning solution temperature control is at 80 DEG C.
Embodiment 3：
A kind of tactile drawing device for spinning prepared for micro/nano-fibre, with embodiment 1, difference is structure：The cone
5 internal cavities have three chambers, see left figure in Fig. 3, respectively chamber a 2；Chamber b 3；Chamber c 4, between chamber mutually solely
Vertical separation, is distributed in onion shape jacket structure.Each chamber is provided with an independent liquid outlet, and three liquid outlet sections are in concentric
Ring-type.Chamber a 2, chamber b 3, chamber c 4 correspond to each independent liquid injection port a 15, liquid injection port b 16, liquid injection port c respectively
17。
Embodiment 4：
A kind of tactile drawing device for spinning prepared for micro/nano-fibre, with embodiment 1, difference is structure：The cone
5 internal cavities have three chambers, see left figure in Fig. 3, respectively chamber a 2；Chamber b 3；Chamber c 4, between chamber mutually solely
Vertical separation, in simultaneously column distribution.Each chamber is provided with an independent liquid outlet, and three liquid outlet sections are in cellular.Chamber a
2nd, chamber b 3, chamber c 4 correspond to each independent liquid injection port a 15, liquid injection port b 16, liquid injection port c 17 respectively.
Compared with electrostatic spinning, touch and draw the simple cost of spinning equipment low, it is safer without high pressure, can be higher than Static Spinning silk spinning
Concentration of dope, spinning efficiency is high, the 1-2 order of magnitude higher than electrostatic spinning yield.Compared with centrifugal spinning, touch and draw device for spinning
Compact, rotating speed needed for motor is small, 1 order of magnitude lower than centrifugal spinning rotating speed, and the poorly rated property of required precision is strong.
Embodiment described above is a kind of preferable scheme of the present invention, not the present invention is made any formal
Limitation, there are other variants and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (10)
- A kind of 1. tactile drawing device for spinning prepared for micro/nano-fibre, it is characterised in that：The device includes liquid supply assembly, cut Array, motor and contact element are cut, the liquid supply assembly that stable flow velocity is provided to contact element accommodates spinning by pipeline with being used for The contact element connection of liquid, shearing array rotate with motor connection and by motor driven, and the shearing array is by disk and set More shearing rod compositions being placed on disk, contact element are adjacent with shearing rod.
- 2. the tactile drawing device for spinning according to claim 1 prepared for micro/nano-fibre, it is characterised in that：It is described to cut The diameter range for cutting rod is 0.5-5mm, and the length range for shearing rod is 10-500mm, and shearing rod is perpendicular to disk plane, shearing Rod is uniformly distributed using the center of disk as symmetrical centre, shears the fixing end and disc centre distance >=10mm of rod.
- 3. the tactile drawing device for spinning according to claim 1 prepared for micro/nano-fibre, it is characterised in that：Shear rod Surface hydrophobicity oleophobic, 150 ° of water contact angle ＞, oily 90 ° of contact angle ＞.
- 4. the tactile drawing device for spinning according to claim 1 prepared for micro/nano-fibre, it is characterised in that：It is described to cut Cut bar matter and be selected from copper, iron, aluminium, aluminium alloy, stainless steel and its alloy, silicate, polytetrafluoroethylene (PTFE)（PTFE）, polystyrene （PS）, polyvinyl chloride（PVC）, polymethyl methacrylate（PMMA）, acrylonitrile-butadiene-styrene (ABS) co-polymer（ABS）, And above-mentioned material is compound.
- 5. the tactile drawing device for spinning according to claim 1 prepared for micro/nano-fibre, it is characterised in that：Feed flow group Part is made up of syringe pump and heater.
- 6. the tactile drawing device for spinning according to claim 1 prepared for micro/nano-fibre, it is characterised in that：Contact portion Part is the cone of metal material, and the cavity for accommodating spinning solution is provided with cone, and cone base center is provided with liquid injection port, cone tip Provided with liquid outlet.
- 7. the tactile drawing device for spinning according to claim 1 prepared for micro/nano-fibre, it is characterised in that：Cone The a diameter of 0.5-10mm of liquid outlet, cone tip is adjacent with the free end for shearing rod, and rod free end is sheared when shearing array rotation Portion is with cone tip at a distance of 0.1-2.0mm.
- 8. the tactile drawing device for spinning according to claim 1 prepared for micro/nano-fibre, it is characterised in that：The cone Body internal cavities have two or more chamber, are separated independently of each other between chamber, in onion shape jacket structure or simultaneously column distribution.
- 9. the tactile drawing device for spinning according to claim 1 prepared for micro/nano-fibre, it is characterised in that：It is described to touch The receipts silk annex that drawing device for spinning also includes collecting the fiber that is scattered on the Silk Road footpath is flown is the framework rotated by motor driven, receives silk The shape of annex includes the build shapes such as flat shape or spheroid, cube, calabash shape such as circle, strip, triangle, taper Shape, and the variant of above-mentioned shape.
- 10. one kind, which is touched, draws spinning process, it is characterised in that：This method utilizes physical shear power and tensile force, contacts, shears and draws Spinning droplet formation liquid bridge is stretched, is solidified into silk in a fluid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710768412.3A CN107574486B (en) | 2017-08-31 | 2017-08-31 | A kind of touching drawing device for spinning and method for micro/nano-fibre preparation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710768412.3A CN107574486B (en) | 2017-08-31 | 2017-08-31 | A kind of touching drawing device for spinning and method for micro/nano-fibre preparation |
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| CN107574486A true CN107574486A (en) | 2018-01-12 |
| CN107574486B CN107574486B (en) | 2019-04-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112210838A (en) * | 2020-08-19 | 2021-01-12 | 浙江理工大学 | Preparation method of polytetrafluoroethylene fiber with surface microsphere structure |
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| JPH05321040A (en) * | 1992-05-11 | 1993-12-07 | Showa Shell Sekiyu Kk | Apparatus for spinning carbon fiber and spinning method |
| US20050249950A1 (en) * | 2002-11-19 | 2005-11-10 | Industrial Technology Research Institute | Functional composite fiber and preparation thereof and spinneret for preparing the same |
| CN103114342A (en) * | 2013-03-05 | 2013-05-22 | 青岛大学 | Simple and efficient electrostatic spinning device for preparing directional nanofibers |
| CN103215666A (en) * | 2013-05-09 | 2013-07-24 | 北京化工大学 | Novel centrifugal melt electrostatic spinning device |
| CN203583028U (en) * | 2013-12-05 | 2014-05-07 | 厦门大学 | Device for manufacturing nanofibers |
| CN105543990A (en) * | 2016-01-19 | 2016-05-04 | 浙江理工大学 | Centrifugal spinning preparation method for micro-nano fiber membrane |
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- 2017-08-31 CN CN201710768412.3A patent/CN107574486B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3920362A (en) * | 1972-10-27 | 1975-11-18 | Jeffers Albert L | Filament forming apparatus with sweep fluid channel surrounding spinning needle |
| JPH05321040A (en) * | 1992-05-11 | 1993-12-07 | Showa Shell Sekiyu Kk | Apparatus for spinning carbon fiber and spinning method |
| US20050249950A1 (en) * | 2002-11-19 | 2005-11-10 | Industrial Technology Research Institute | Functional composite fiber and preparation thereof and spinneret for preparing the same |
| CN103114342A (en) * | 2013-03-05 | 2013-05-22 | 青岛大学 | Simple and efficient electrostatic spinning device for preparing directional nanofibers |
| CN103215666A (en) * | 2013-05-09 | 2013-07-24 | 北京化工大学 | Novel centrifugal melt electrostatic spinning device |
| CN203583028U (en) * | 2013-12-05 | 2014-05-07 | 厦门大学 | Device for manufacturing nanofibers |
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| CN112210838A (en) * | 2020-08-19 | 2021-01-12 | 浙江理工大学 | Preparation method of polytetrafluoroethylene fiber with surface microsphere structure |
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