CN106182785A - A kind of device and method utilizing alternating current spinning to realize 3 D-printing micro-nano structure - Google Patents
A kind of device and method utilizing alternating current spinning to realize 3 D-printing micro-nano structure Download PDFInfo
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- CN106182785A CN106182785A CN201610802192.7A CN201610802192A CN106182785A CN 106182785 A CN106182785 A CN 106182785A CN 201610802192 A CN201610802192 A CN 201610802192A CN 106182785 A CN106182785 A CN 106182785A
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- printing
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- high voltage
- syringe needle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
Abstract
The invention provides a kind of device and method utilizing alternating current spinning to realize 3 D-printing micro-nano structure, printing raw material is loaded and injects system, at syringe needle, form the spherical droplets printing raw material；Syringe needle and reception plate apply AC high voltage, makes syringe needle and receive formation alternation high voltage electric field between plate, under the effect of alternation high voltage electric field, print raw material and form single jet, deposit to form micro nanometer fiber on reception plate；Receive the temperature stabilization of plate below the fusing point printing raw material so that micro nanometer fiber solidifies；Control to receive plate motion, obtain the layering cross section of threedimensional model；Each layering of traversal threedimensional model, completes the printing of threedimensional model successively.The present invention can be effectively improved the precision of 3 D-printing.
Description
Technical field
The present invention relates to the device and method of a kind of 3 D-printing micro-nano structure, belong to rapid shaping technique field.
Background technology
Three-dimensional printing technology is a kind of rapid shaping technique carrying out constructed object by the way of successively printing.Engineering plastics
The most commonly used a kind of 3 D-printing material being employed, its printing type be substantially by the way of raw material is extruded successively
Print, but due to the bulking effect limited by jet diameters and after fiber extrusion so that the fibre diameter of extrusion is relatively
Slightly, cause with this three dimensional structure degree of accuracy piled up poor, it is impossible to meet the printing requirement of micro-nano structure.
Electrostatic spinning is that one prepares micro/nano-fibre one of method the most simply and easily, because device is simple, cost
Relatively low and favored by the research worker in each field.Electrospinning fibre has been widely used biomedical engineering, filtering material, efficiently
The every field such as catalysis, photoelectric device.Under the effect of high voltage electric field, the stability of drop is destroyed, and forms tiny jet,
Under the effect of Coulomb force, accelerate to deposit to receive on plate, form micro/nano-fibre.But, along with the prolongation of spinning time,
It is deposited on the fiber accumulation received on plate, Electric Field Distribution is produced serious influence, and then affects formation and the fiber of jet
Further precipitation.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides one to utilize alternating current spinning to realize 3 D-printing micro-nano knot
The device and method of structure, is applied to the electrospinning improved in three-dimensional printing technology, thus improves the precision of 3 D-printing.
The technical solution adopted for the present invention to solve the technical problems is: one utilizes alternating current spinning to realize 3 D-printing
The device of micro-nano structure, including AC high voltage source generator, injects system and reception system；Described reception system includes
Receive plate, temperature-controlling system and three-dimensional motion system；Described temperature-controlling system makes the temperature stabilization receiving plate print raw material
Fusing point below；Described three-dimensional motion system makes reception plate in space along XYZ axle arbitrary motion；Described injects in system
Load and print raw material, deposit to receive on plate by printing raw material outgoing by syringe needle；Described AC high voltage source generator defeated
Go out to hold the two poles of the earth connecting needle respectively and receive plate, between syringe needle and reception plate, forming alternation high voltage electric field.
Described syringe needle is disposed vertically with receiving plate.
The output voltage waveforms of described AC high voltage source generator is sinusoidal wave, and virtual value is 3-10kV, and frequency is 40-
200Hz。
Described printing raw material is electrostatic spinning polymer, includes but not limited to polycaprolactone, polylactic acid, polyurethane, poly-second
Alkene, polypropylene.
The present invention also provides for a kind of method utilizing alternating current spinning to realize 3 D-printing micro-nano structure, including following step
Rapid:
1) build the threedimensional model of micro structure to be printed, and threedimensional model is carried out layered shaping, it is thus achieved that the wheel of each layering
Wide information and filling information；
2) system is injected in the loading of printing raw material, at syringe needle, form the spherical droplets printing raw material；In syringe needle and reception
Apply AC high voltage on plate, make syringe needle and receive formation alternation high voltage electric field between plate, under the effect of alternation high voltage electric field,
Print raw material and form single jet, deposit to receive formation micro nanometer fiber on plate；The temperature stabilization receiving plate is printing raw material
Fusing point below so that micro nanometer fiber solidify；
3) control to receive plate motion, obtain the layering cross section of threedimensional model；Each layering of traversal threedimensional model, completes successively
The printing of threedimensional model.
The thickness of each layering of described threedimensional model is 0.001-0.2mm.
Described syringe needle is 1-10mm with the distance of reception plate.
Described reception plate is 0.5-5m/min relative to the movement velocity of syringe needle.
The described speed of injecting injecting system is 0.5-3ml/h.
The invention has the beneficial effects as follows: after using ac high voltage source, under the effect of alternation high voltage electric field, at needle point
It is stretched drop period, the unstability aggravation on drop surface, when electric field force is more than surface tension, the surface meeting of drop
Forming tiny jet, the surface charge polar cycle of this jet ground changes, and then can make the electric charge that jet carried can be by
Self neutralizes, it is to avoid the follow-up jet being newly formed is ostracised because of band like charges, causes the fiber being newly formed to be difficult to deposition
To receiving on plate.Use alternation high voltage electric field, it is also possible to effectively increase the thickness of fiber deposition.Use alternation high voltage electric field
After, fiber can receive in insulation and deposit on plate, is effectively prevented from fiber and persistently piles up and cause Electric Field Distribution to change, improves
Fiber is at the deposition accuracy received on plate and deposit thickness.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of the present invention；
In figure, 1.-inject system, 2.-temperature control instrument, 3.-heating muff, 4.-ac high voltage source, 5.-XYZ kinetic system
System, 6.-thermostatic platform.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings, and the present invention includes but are not limited to following enforcement
Example.
A kind of device utilizing alternating current spinning to realize 3 D-printing micro structure that the present invention provides, ac high voltage source is sent out
Give birth to device, inject system and reception system；Described reception system includes receiving plate, temperature-controlling system and XYZ motor system, makes
Receiving plate and can keep a certain steady temperature and along XYZ axle arbitrary motion, the syringe needle injecting system is disposed vertically with receiving plate.
Print raw material loading and inject system so that it is at syringe needle, form spherical droplets, alternating current power supply is connected on respectively syringe needle
In place and reception plate so that it is form alternation high voltage electric field between syringe needle and reception plate, under the effect of alternation high voltage electric field,
The stability of drop is destroyed, and forms tiny single jet, under the effect of Coulomb force, accelerates to deposit to receive shape on device
Become micro/nano-fibre, made a certain perseverance connecing collection stable plate below printed material fusing point by the temperature-controlling system of regulation reception plate
Fixed temperature, makes the micro/nano-fibre depositing to receive on plate solidify rapidly, and can be tight with the micro/nano-fibre being newly formed
Close combination, is not destroyed.
By controlling motor system so that it is motion path is consistent with hierarchical information, obtain the cross section of layering.Often complete one
After the electrospinning of layer, XYZ motion platform is made to decline the height of a layer along Z axis.Circulation is until completing all of hierarchy successively.
Described high voltage power supply is ac high voltage source, and output voltage waveforms is sinusoidal wave, and virtual value is 3-10kV, and frequency is
40-200Hz。
Described printing raw material be can the polymer of electrostatic spinning, be prepared as having one by the method using solvent or heating
Determine the uniform solution of viscosity, including polycaprolactone, polylactic acid, polyurethane, polyethylene, polypropylene etc..
The thickness of each layering of described three-dimensional micro-nano structure is 0.001-0.2mm.
Described syringe needle is 1-10mm with the distance of reception plate.
Described syringe needle is 0.5-5m/min with the speed of related movement of reception plate.
Described speed of injecting is 0.5-3ml/h.
A kind of method utilizing alternating current spinning to realize 3 D-printing micro structure of the present invention, including walking in detail below
Rapid:
(1) utilize the 3 d structure model of computer drawing pre-print micro structure, and it is done layered shaping, obtain pre-beating
The hierarchical information of print micro structure, and import in the motor system receiving device；The thickness of above-mentioned each layering is 0.001-
0.2mm。
(2) load system of injecting after being dissolved or add heat fusing by printing Materials Solvents, adjust and inject speed at 0.5-2ml/h
Between, respectively the two ends of ac high voltage source are connected with syringe needle and reception plate, make syringe needle and receive formation alternation between plate
High voltage electric field, the output voltage of regulation ac high voltage source is 3-10kV, then adjusts syringe needle and the distance received between plate exists
Between 1-10mm, making the drop being pushed out can be under the effect of alternation high voltage electric field, the stability on surface be destroyed, and is formed thin
Little jet, under the effect of Coulomb force, accelerates to deposit to receive to form micro/nano-fibre on device, receives plate by regulation
Temperature-controlling system makes a certain steady temperature connecing collection stable plate below printed material fusing point, make to deposit to receive on plate micro-/receive
Rice fiber solidifies rapidly, and can combine closely with the micro/nano-fibre being newly formed, and is not destroyed.
(3) by controlling motor system so that it is motion path is consistent with hierarchical information, often completes the electrospinning of a layer
Obtain the cross section of a layering.Often complete the electrospinning in a cross section, make reception plate decline the height of a lift height along Z axis,
Circulation is until completing all of hierarchy successively.
Embodiment one
1) drawing the threedimensional model of pre-print micro structure, and do layered shaping, making each lift height is 0.02mm, obtains
The hierarchical information of pre-print micro structure, imports kinetic control system so that it is the motion path and the hierarchical information that receive plate are consistent.
2) polycaprolactone granule is loaded glass syringe with rustless steel syringe needle be heated to 150 DEG C make it melt,
Insulation more than 4h bubble removing side by side, places and injects on pump, and adjusting and injecting speed is 0.9ml/h；By the two ends of ac high voltage source
Connecting with syringe needle and reception plate respectively, adjust ac high voltage source and make it be output as sine wave, effective output voltage is 5kV, frequently
Rate is 50Hz so that it is form alternation high voltage electric field between syringe needle and reception plate；The distance adjusting reception plate and syringe needle is 5mm,
Make the drop injected out under the effect of alternation high voltage electric field, form small thread, by the stretching of Coulomb force, further shape
Micro nanometer fiber is become to be deposited on the reception plate of motion；The rate travel adjusting reception plate is 2m/min, makes to be deposited on reception
Fiber on plate is distortionless, straight and continuous；Regulation receives the temperature-controlling system on plate so that it is constant at 50 DEG C, this temperature is permissible
Make to be deposited on the fiber fast setting received on plate, play at the node of two fibers fixing effect, adjacent layering it
Between also function to important interconnection function.
3) often complete the electrospinning of a layering, receive plate and decline downwards 0.02mm, the thickness of i.e. one layering along Z-direction
Degree, then proceedes to the electrospinning of the second layering, and a repetitive cycling, until completing the electrospinning of all layerings, i.e. can obtain three preset
Dimension micro structure.
Embodiment two
1) drawing the threedimensional model of pre-print micro structure, and do layered shaping, making each lift height is 0.02mm, obtains
The hierarchical information of pre-print micro structure, imports kinetic control system so that it is the motion path and the hierarchical information that receive plate are consistent.
2) polycaprolactone can be added in hexafluoroisopropanol and dissolve, form the solution of 15%, solution is sucked 10ml note
In emitter, being placed on and inject on pump, adjusting and injecting speed is 0.4mm/min；By the two ends of ac high voltage source respectively with syringe needle
Connecting with receiving plate, adjust ac high voltage source and make it be output as sine wave, effective output voltage is 3kV, and frequency is 100Hz,
It is made at syringe needle and to receive formation alternation high voltage electric field between plate；The distance adjusting reception plate and syringe needle is 3mm, makes to be injected out
Drop under the effect of alternation high voltage electric field, form small thread, by the stretching of Coulomb force, form further micro-nano fibre
Tie up and be deposited on the reception plate of motion；The rate travel adjusting reception plate is 3m/min, makes to be deposited on the fiber received on plate
Distortionless, straight and continuous；Regulation receives the temperature-controlling system on plate so that it is constant at-4 DEG C, this temperature can make to be deposited on to connect
Receive the fiber fast setting on plate, at the node of two fibers, play fixing effect, between adjacent layering, also function to weight
The interconnection function wanted.
3) often complete the electrospinning of a layering, receive plate and decline downwards 0.02mm, the thickness of i.e. one layering along Z-direction
Degree, then proceedes to the electrospinning of the second layering, and a repetitive cycling, until completing the electrospinning of all layerings, i.e. can obtain three preset
Dimension micro structure.
Claims (9)
1. utilize alternating current spinning to realize a device for 3 D-printing micro-nano structure, including AC high voltage source generator, push away
Injection system and the system of reception, it is characterised in that: described reception system includes receiving plate, temperature-controlling system and three-dimensional motion system
System；Described temperature-controlling system makes the temperature stabilization receiving plate below the fusing point printing raw material；Described three-dimensional motion system
Make reception plate in space along XYZ axle arbitrary motion；Described injecting loads printing raw material in system, will print former by syringe needle
Material outgoing deposits to receive on plate；Outfan the two poles of the earth of described AC high voltage source generator connecting needle respectively and reception plate,
Alternation high voltage electric field is formed between syringe needle and reception plate.
The device utilizing alternating current spinning to realize 3 D-printing micro-nano structure the most according to claim 1, it is characterised in that:
Described syringe needle is disposed vertically with receiving plate.
The device utilizing alternating current spinning to realize 3 D-printing micro-nano structure the most according to claim 1, it is characterised in that:
The output voltage waveforms of described AC high voltage source generator is sinusoidal wave, and virtual value is 3-10kV, and frequency is 40-200Hz.
The device utilizing alternating current spinning to realize 3 D-printing micro-nano structure the most according to claim 1, it is characterised in that:
Described printing raw material is electrostatic spinning polymer, include but not limited to polycaprolactone, polylactic acid, polyurethane, polyethylene, poly-third
Alkene.
5. one kind utilizes the method that alternating current spinning realizes 3 D-printing micro-nano structure, it is characterised in that comprise the steps:
1) build the threedimensional model of micro structure to be printed, and threedimensional model is carried out layered shaping, it is thus achieved that the profile letter of each layering
Breath and filling information；
2) system is injected in the loading of printing raw material, at syringe needle, form the spherical droplets printing raw material；On syringe needle and reception plate
Apply AC high voltage, make syringe needle and receive formation alternation high voltage electric field between plate, under the effect of alternation high voltage electric field, printing
Raw material forms single jet, deposits to receive formation micro nanometer fiber on plate；The temperature stabilization receiving plate is printing the molten of raw material
Below Dian so that micro nanometer fiber solidifies；
3) control to receive plate motion, obtain the layering cross section of threedimensional model；Each layering of traversal threedimensional model, completes three-dimensional successively
The printing of model.
The method utilizing alternating current spinning to realize 3 D-printing micro-nano structure the most according to claim 5, it is characterised in that:
The thickness of each layering of described threedimensional model is 0.001-0.2mm.
The method utilizing alternating current spinning to realize 3 D-printing micro-nano structure the most according to claim 5, it is characterised in that:
Described syringe needle is 1-10mm with the distance of reception plate.
The method utilizing alternating current spinning to realize 3 D-printing micro-nano structure the most according to claim 5, it is characterised in that:
Described reception plate is 0.5-5m/min relative to the movement velocity of syringe needle.
The method utilizing alternating current spinning to realize 3 D-printing micro-nano structure the most according to claim 5, it is characterised in that:
The described speed of injecting injecting system is 0.5-3ml/h.
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| CN201610802192.7A CN106182785A (en) | 2016-09-05 | 2016-09-05 | A kind of device and method utilizing alternating current spinning to realize 3 D-printing micro-nano structure |
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| CN201610802192.7A CN106182785A (en) | 2016-09-05 | 2016-09-05 | A kind of device and method utilizing alternating current spinning to realize 3 D-printing micro-nano structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108285870A (en) * | 2018-02-02 | 2018-07-17 | 广东工业大学 | A kind of tissue culture plate and preparation method thereof with micro-pillar array |
| CN108950703A (en) * | 2018-09-18 | 2018-12-07 | 西安交通大学 | The device and method of piezopolymer MEMS structure is prepared based on one step chemical industry skill of near field electrostatic spinning |
| CN109130168A (en) * | 2018-07-25 | 2019-01-04 | 江苏大学 | A kind of preparation method of the high flexibility organic electrode of direct Writing type |
| CN109321987A (en) * | 2018-10-29 | 2019-02-12 | 厦门大学 | A kind of electrospinning direct-writing exchange microcontroller device and method thereof |
| CN110126271A (en) * | 2019-06-03 | 2019-08-16 | 北京化工大学 | A kind of melt electrostatic spinning direct-writing device and method |
| CN110273226A (en) * | 2019-07-18 | 2019-09-24 | 上海泰坦科技股份有限公司 | A kind of medical bionic film and its preparation method and application |
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| CN109130168A (en) * | 2018-07-25 | 2019-01-04 | 江苏大学 | A kind of preparation method of the high flexibility organic electrode of direct Writing type |
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| CN108950703A (en) * | 2018-09-18 | 2018-12-07 | 西安交通大学 | The device and method of piezopolymer MEMS structure is prepared based on one step chemical industry skill of near field electrostatic spinning |
| CN109321987A (en) * | 2018-10-29 | 2019-02-12 | 厦门大学 | A kind of electrospinning direct-writing exchange microcontroller device and method thereof |
| CN110126271A (en) * | 2019-06-03 | 2019-08-16 | 北京化工大学 | A kind of melt electrostatic spinning direct-writing device and method |
| CN110273226A (en) * | 2019-07-18 | 2019-09-24 | 上海泰坦科技股份有限公司 | A kind of medical bionic film and its preparation method and application |
| CN113372687A (en) * | 2021-06-16 | 2021-09-10 | 中国计量大学 | Bionic composite material started from cobweb and preparation method thereof |
| CN113372687B (en) * | 2021-06-16 | 2022-05-31 | 中国计量大学 | Bionic composite material started from cobweb and preparation method thereof |
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Inventor after: Yin Dachuan Inventor after: He Fengli Inventor after: Ye Yajing Inventor after: Zhang Chenyan Inventor after: Liu Yangyang Inventor after: Li Dawei Inventor after: He Jin Inventor after: Liu Yali Inventor before: Yin Dachuan Inventor before: He Fengli Inventor before: Liu Yangyang Inventor before: Li Dawei Inventor before: He Jin Inventor before: Liu Yali |
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Application publication date: 20161207 |