CN107364134A - A kind of electrohydrodynamics coaxially prints the shower nozzle of the compound Meta Materials of polymer metal - Google Patents
A kind of electrohydrodynamics coaxially prints the shower nozzle of the compound Meta Materials of polymer metal Download PDFInfo
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- CN107364134A CN107364134A CN201710559209.5A CN201710559209A CN107364134A CN 107364134 A CN107364134 A CN 107364134A CN 201710559209 A CN201710559209 A CN 201710559209A CN 107364134 A CN107364134 A CN 107364134A
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- mounting blocks
- polymer
- nozzle
- metal bath
- metal
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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
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
Abstract
A kind of electrohydrodynamics coaxially prints the shower nozzle of the compound Meta Materials of polymer metal.It is characterized in that：Inner core is arranged in shell, and incubation cavity is formed between inner core and shell, and shell is provided with the import of insulation liquid and the outlet of insulation liquid connected with incubation cavity；Nozzle is arranged on outer casing bottom center, and connects high-field electrode；Formed with metal bath intake channel, polymer inlet passage and the metal bath outlet flow of nozzle, polymer exit passage are respectively directed on inner core；Metal bath intake channel is connected with metal bath outlet flow, and polymer inlet passage is connected with polymer exit passage.It the advantage is that by adding insulation liquid in incubation cavity, meet the hot conditions in print procedure, prevent molten state material solidification；Metal bath is directly entered nozzle with polymer melt simultaneously, spouting under the high voltage electric field effect of high-field electrode, is aided in without solvent, jet process is relatively easy to control.
Description
Technical field
The present invention relates to a kind of electrohydrodynamics printing technique, and in particular to coaxially printing is poly- for a kind of electrohydrodynamics
The shower nozzle of compound metal composite Meta Materials.
Background technology
Electromagnetism Meta Materials are that one kind includes metal structure in the polymeric material（Unit cell size is much smaller than and its phase separation ripple
It is long, 1/10 is approximately less than, it is general to require to be less than micro-meter scale, preferably in 10-100 nm yardsticks）Composite, pass through change gold
Belong to single cell structure parameter, its controllable electromagnetic performance, be a kind of novel microwave so as to regulate and control propagation of the electromagnetic wave in space
Material, available for function elements such as antennas, have in fields such as national defence, communication, medical treatment, the energy great and before being widely applied
Scape.With scientific and technological progress, based on electrohydrodynamics printing polymer metal composite manufacture Meta Materials and function element oneself
Through as new research direction.Electrohydrodynamics printing is a kind of Meta Materials manufacture new method, can be prepared from monocomponent nanocomposite
It is multiple that fiber is transitioned into the composite nano fiber of the different materials such as metal and polymeric material, metal-organic framework (MOFs) etc.
Condensation material function element, but be all based on the printing of nano-solution, the structure dimension of the composite after printing-forming, precision and
Direct manufacture view is still unsatisfactory.
At present, the Advanced Manufacturing Technology of Meta Materials has photoetching, EBL（e-beam lithography）、FIB（focused
ion beam）Deng these methods not only need mask, complex process, and equipment is expensive, and working service cost is very high.Hadi
Et al.（Teguh Yudistira H, Pradhipta Tenggara A, Oh S S, et al. High-resolution
electrohydrodynamic jet printing for the direct fabrication of 3D multilayer
terahertz metamaterial of high refractive index[J]. Journal of Micromechanics
& Microengineering, 2015, 25）It is proved that by electrohydrodynamics technology Terahertz Meta Materials can be manufactured, but
Process includes five steps such as spin coating and plasma treatment, and printed material is also restricted, rather than a step manufacturing process.
Based on electrohydrodynamics, printed using solution electrostatic spinning or solution, inorganic, organic polymer and composite Nano can be prepared
Fiber.But above method is above only applicable to low viscosity solution in application, and it is unstable jet to be present, and fiber is relatively thin and spinning effect
The shortcomings of rate is relatively low.According to melt electrostatic spinning method, filamentation process solidifies for hot melt, aids in without solvent, is sunk with jet
The advantages that easily controllable and spinning efficiency of product is high, can be with FDM（Fused Deposition Modeling method, Fused Deposition
Modeling）3D technology combination can realize the 3D printing based on electrohydrodynamics.Existing coaxial melt electrostatic spinning technology,
Melt keeps certain interval by a coaxial core ectonexine capillary between two tube layer, outer layer liquid is distinguished with core matter liquid
In two pipe interflows, finally converge in capillary end, but its two kinds of material used is polymeric material, is not applied to
In preparing composite Meta Materials, the method mesh of metal polymer composite Meta Materials is prepared using electrohydrodynamics method
It is preceding that there is not been reported.
The content of the invention
In order to overcome the shortcomings of background technology, a kind of electrohydrodynamics of present invention offer coaxially prints polymer metal and answered
Close the shower nozzle of Meta Materials.
The technical solution adopted in the present invention：A kind of electrohydrodynamics coaxially prints the compound Meta Materials of polymer metal
Shower nozzle, it is characterised in that：Including shell, inner core, nozzle, high-field electrode；The inner core is arranged in shell, the inner core with it is outer
Incubation cavity is formed between shell, the shell is provided with the import of insulation liquid and the outlet of insulation liquid connected with incubation cavity；The nozzle
Outer casing bottom center is arranged on, and connects high-field electrode；Formed with metal bath intake channel, polymer inlet on the inner core
Passage and it is respectively directed to the metal bath outlet flow of nozzle, polymer exit passage；The metal bath intake channel with
Metal bath outlet flow is connected, and the polymer inlet passage is connected with polymer exit passage.
The part that the inner core contacts with shell installation is provided with one layer of sealing and anti-leakage layer.
The metal bath outlet flow and polymer exit passage are slit conduit, the metal bath outlet flow
Length be 100 μm ~ 700 μm, width be 60 μm ~ 600 μm, the length of the polymer exit passage is 100 μm ~ 700 μ
M, width are 60 μm ~ 600 μm.
The voltage strength of the high-field electrode is 5KV ~ 30KV.
The nozzle is slot type rectangular cross section nozzle, a length of 90 μm ~ 800 μm, a width of 45 μm ~ 600 μm.
The inner core includes bottom plate, the first mounting blocks, the second mounting blocks, the 3rd mounting blocks, central block；
The bottom plate center is provided with installation groove, and the nozzle is arranged in installation groove；
First mounting blocks are arranged on bottom plate, and push down nozzle, and the first mounting blocks center is provided with taper groove；
Second mounting blocks are arranged on the first mounting blocks, the 3rd mounting blocks are arranged on the second mounting blocks, and the second peace
Metal bath intake channel is collectively forming on dress block and the 3rd mounting blocks, the metal bath intake channel leads to taper and led to
Groove；
Described central block one end is tapered, and is arranged in taper groove, and being collectively forming metal bath outlet with taper groove flows
Road, the central block other end pass through the second mounting blocks and the 3rd mounting blocks center and fixation, and the central block is centrally formed with
Polymer inlet passage and polymer exit passage.
It is mutually permanently connected between the bottom plate, the first mounting blocks, the second mounting blocks, the 3rd mounting blocks by bolt.
Seal is equipped between the bottom plate, the first mounting blocks, the second mounting blocks, the 3rd mounting blocks.
The beneficial effects of the invention are as follows：Using above scheme, by adding insulation liquid in incubation cavity, meet print procedure
In hot conditions, prevent molten state material solidification；Metal bath is directly entered nozzle with polymer melt simultaneously, in high-tension electricity
It is spouting under the high voltage electric field effect of pole, aided in without solvent, jet process is relatively easy to control；And the polymer metal printed
Composite has the advantages that surface area is big, porosity is high, and ionic polymer metal composite material can be used as to be applied to bionical, doctor
Learn engineering, the field such as brake, can also be used as electromagnetism Meta Materials, applied to radiation-proof garment, the ultraviolet of isolation more than 95% and
Electromagnetic wave.
Brief description of the drawings
Fig. 1 is the structural representation of shower nozzle of the embodiment of the present invention.
1- shells in figure, 2- inner cores, 21- bottom plates, the mounting blocks of 22- first, the mounting blocks of 23- second, the mounting blocks of 24- the 3rd,
25- central blocks, 3- nozzles, 4- high-field electrodes, 5- incubation cavities, 6- metal bath intake channels, 7- polymer inlet passages, 8- gold
Belong to melt outlet passage, 9- polymer exit passages, 10- sealing and anti-leakage layers, 11- insulation liquid imports, the outlet of 12- insulation liquid.
Embodiment
Embodiments of the present invention is further illustrated below in conjunction with the accompanying drawings：
As illustrated, a kind of electrohydrodynamics coaxially prints the shower nozzle of the compound Meta Materials of polymer metal, including it is shell 1, interior
Core 2, nozzle 3, high-field electrode 4；The inner core 2 is arranged in shell 1, and incubation cavity 5, institute are formed between the inner core 2 and shell 1
State shell 1 and be provided with the insulation liquid import 11 and insulation liquid outlet 12 connected with incubation cavity 5；The nozzle 3 is arranged on the bottom of shell 1
Portion center, and connect high-field electrode 4；On the inner core 2 formed with metal bath intake channel 6, polymer inlet passage 7 and
It is respectively directed to metal bath outlet flow 8, the polymer exit passage 9 of nozzle 3；The metal bath intake channel 6 and metal
Melt outlet runner 8 is connected, and the polymer inlet passage 7 is connected with polymer exit passage 9.
Insulation liquid energy is enough to be flowed into from insulation liquid import 11, and from the outflow of insulation liquid outlet 12, ensures there is stream in incubation cavity 5
The insulation liquid of dynamic constant temperature, the high temperature by being incubated liquid meet the hot conditions in print procedure, ensure metal bath and polymer
Melt is kept molten by, and avoids solidifying.
Heated metal is in molten condition, is entered by metal bath intake channel 6, and flowed by metal bath outlet flow 8
Go out and enter nozzle 3, while it is in molten condition that polymer is heated, is entered by polymer inlet passage 7, and led to by polymer exit
Road 9 exits into nozzle 3 so that metal bath mutually merges with polymer melt to be flowed out by nozzle 3, the mixing dropping liquid warp of outflow
The high voltage electric field effect of high-field electrode, realizes injection, is aided in without solvent, jet process is relatively easy to control.
As illustrated, the inner core 2 installs the part contacted with shell 1 is provided with one layer of sealing and anti-leakage layer 10, sealing is anti-
Drop ply 10 plays preferable sealing effectiveness, it is ensured that is not in infiltration, the leakage being incubated between liquid and melt, is further ensured that and beats
Print effect.
In addition, the metal bath outlet flow 8 and polymer exit passage 9 are slit conduit, the metal bath
The length of outlet flow 8 is 100 μm ~ 700 μm, and width is 60 μm ~ 600 μm, and the length of the polymer exit passage 9 is
100 μm ~ 700 μm, width is 60 μm ~ 600 μm.
The voltage strength of the high-field electrode 4 is 5KV ~ 30KV.
The nozzle 3 is slot type rectangular cross section nozzle, a length of 90 μm ~ 800 μm, a width of 45 μm ~ 600 μm.
Metal material can select the low melting point metal materials such as gallium, indium, tin, rubidium, caesium, francium, and polymeric material material can be with
Select polymethyl methacrylate（PMMA）, polysulfonamides（PSA）, poly-epsilon-caprolactone（PCL）.
According to different metal materials and polymeric material material, various sizes of metal bath outlet flow can be selected
8th, the high-field electrode 4 of polymer exit passage 9, nozzle 3 and different voltage strengths.
As illustrated, the inner core 2 include bottom plate 21, the first mounting blocks 22, the second mounting blocks 23, the 3rd mounting blocks 24,
Central block 25；The center of bottom plate 21 is provided with installation groove, and the nozzle 3 is arranged in installation groove；First mounting blocks
22 are arranged on bottom plate 21, and push down nozzle 3, and the center of the first mounting blocks 22 is provided with taper groove；Second mounting blocks
23 are arranged on the first mounting blocks 22, the 3rd mounting blocks 24 are arranged on the second mounting blocks 23, and the second mounting blocks 23 and
Metal bath intake channel 6 is collectively forming on three mounting blocks 24, the metal bath intake channel 6 leads to taper groove；Institute
It is tapered to state the one end of central block 25, and is arranged in taper groove, metal bath outlet flow 8 is collectively forming with taper groove,
The other end of central block 25 passes through the second mounting blocks 23 and the center of the 3rd mounting blocks 24 and fixation, heart-shaped in the central block 25
Into having polymer inlet passage 7 and polymer exit passage 9.Inner core 2 passes through bottom plate 21, the first mounting blocks 22, the second mounting blocks
23rd, the 3rd mounting blocks 24, some of central block 25 compositions, are more convenient installation, its bottom plate 21, the first mounting blocks 22, second
It is mutually permanently connected between mounting blocks 23, the 3rd mounting blocks 24 by bolt, connection is very convenient.And bottom plate 21, first is pacified
Seal is equipped between dress block 22, the second mounting blocks 23, the 3rd mounting blocks 24, it is ensured that sealing effectiveness.
Printing observation is carried out with a specific example again below：
It is polymeric material to take PCL, and its molecular weight is 80000, and fusing point is 60 DEG C, takes metal material gallium, its atomic weight is
69.723, fusing point is 29.8 DEG C, a length of 300 μm of polymer exit passage, a width of 150 μm, metal bath outlet flow a length of 450
μm, a width of 300 μm,
A length of 180 μm of nozzle, a width of 120 μm, insulation liquid temperature degree is 70 DEG C, and high-field electrode provides voltage 30KV.
Under high voltage electric field effect, by the melt jet of polymer PC L and gallium to collecting board, pass through high-speed camera
The polymer metal composite liquid-drop diameter that injection can be observed in head is 9 μm.
Compared with traditional polymer metal composite, the polymer metal composite has that surface area is big, hole
The advantages that rate is high, ionic polymer metal composite material can be used as to be applied to the fields such as bionical, engineering in medicine, brake, also may be used
As electromagnetism Meta Materials, applied to radiation-proof garment, the ultraviolet and electromagnetic wave of isolation more than 95%.
Embodiment is not construed as the limitation to invention, but any spiritual improvements introduced based on the present invention, all Ying Ben
Within the protection domain of invention.
Claims (8)
1. a kind of electrohydrodynamics coaxially prints the shower nozzle of the compound Meta Materials of polymer metal, it is characterised in that：Including shell
（1）, inner core（2）, nozzle（3）, high-field electrode（4）；
The inner core（2）It is arranged on shell（1）It is interior, the inner core（2）With shell（1）Between form incubation cavity（5）, the shell
（1）It is provided with and incubation cavity（5）The insulation liquid import of connection（11）With the outlet of insulation liquid（12）；
The nozzle（3）It is arranged on shell（1）Bottom centre, and connect high-field electrode（4）；
The inner core（2）On formed with metal bath intake channel（6）, polymer inlet passage（7）And it is respectively directed to nozzle
（3）Metal bath outlet flow（8）, polymer exit passage（9）；
The metal bath intake channel（6）With metal bath outlet flow（8）It is connected, the polymer inlet passage（7）
With polymer exit passage（9）It is connected.
2. electrohydrodynamics according to claim 1 coaxially prints the shower nozzle of the compound Meta Materials of polymer metal, it is special
Sign is：The inner core（2）With shell（1）The part of installation contact is provided with one layer of sealing and anti-leakage layer（10）.
3. electrohydrodynamics according to claim 1 coaxially prints the shower nozzle of the compound Meta Materials of polymer metal, it is special
Sign is：The metal bath outlet flow（8）With polymer exit passage（9）It is slit conduit, the metal bath goes out
Mouth runner（8）Length be 100 μm ~ 700 μm, width be 60 μm ~ 600 μm, the polymer exit passage（9）Length be
100 μm ~ 700 μm, width is 60 μm ~ 600 μm.
4. electrohydrodynamics according to claim 1 coaxially prints the shower nozzle of the compound Meta Materials of polymer metal, it is special
Sign is：The high-field electrode（4）Voltage strength be 5KV ~ 30KV.
5. electrohydrodynamics according to claim 1 coaxially prints the shower nozzle of the compound Meta Materials of polymer metal, it is special
Sign is：The nozzle（3）For slot type rectangular cross section nozzle, a length of 90 μm ~ 800 μm, a width of 45 μm ~ 600 μm.
6. electrohydrodynamics according to claim 1 coaxially prints the shower nozzle of the compound Meta Materials of polymer metal, it is special
Sign is：The inner core（2）Including bottom plate（21）, the first mounting blocks（22）, the second mounting blocks（23）, the 3rd mounting blocks（24）、
Central block（25）；
The bottom plate（21）Center is provided with installation groove, the nozzle（3）In installation groove；
First mounting blocks（22）It is arranged on bottom plate（21）On, and push down nozzle（3）, first mounting blocks（22）Center is set
There is taper groove；
Second mounting blocks（23）It is arranged on the first mounting blocks（22）, the 3rd mounting blocks（24）It is arranged on the second mounting blocks
（23）On, and the second mounting blocks（23）With the 3rd mounting blocks（24）On be collectively forming metal bath intake channel（6）, the gold
Belong to melt inlet passage（6）Lead to taper groove；
The central block（25）One end is tapered, and is arranged in taper groove, and being collectively forming metal bath with taper groove goes out
Mouth runner（8）, the central block（25）The other end passes through the second mounting blocks（23）With the 3rd mounting blocks（24）Center and fixation, institute
State central block（25）It is centrally formed with polymer inlet passage（7）With polymer exit passage（9）.
7. electrohydrodynamics according to claim 6 coaxially prints the shower nozzle of the compound Meta Materials of polymer metal, it is special
Sign is：Bottom plate（21）, the first mounting blocks（22）, the second mounting blocks（23）, the 3rd mounting blocks（24）Between pass through bolt phase
Mutually it is fixedly connected.
8. electrohydrodynamics according to claim 6 coaxially prints the shower nozzle of the compound Meta Materials of polymer metal, it is special
Sign is：Bottom plate（21）, the first mounting blocks（22）, the second mounting blocks（23）, the 3rd mounting blocks（24）Between be equipped with seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710559209.5A CN107364134B (en) | 2017-07-11 | 2017-07-11 | A kind of electrohydrodynamics coaxially prints the spray head of the compound Meta Materials of polymer metal |
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| CN201710559209.5A CN107364134B (en) | 2017-07-11 | 2017-07-11 | A kind of electrohydrodynamics coaxially prints the spray head of the compound Meta Materials of polymer metal |
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Cited By (3)
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| CN109862638A (en) * | 2018-12-17 | 2019-06-07 | 广州医科大学 | A kind of temp auto-controlled exothermic material and preparation method thereof |
| CN112477109A (en) * | 2020-10-09 | 2021-03-12 | 哈尔滨工业大学 | Fused deposition 3D printer and digital linear array adjustable spray head device thereof |
| WO2021093603A1 (en) * | 2019-11-12 | 2021-05-20 | 深圳职业技术学院 | 3d printer coaxial spray head, and 3d printer with same |
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| CN201367496Y (en) * | 2009-02-25 | 2009-12-23 | 北京化工大学 | Device for producing composite fiber by utilizing melt electrostatic spinning |
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