CN109878071A - A method of ionic pressure sensor array is prepared based on 3D printing - Google Patents
A method of ionic pressure sensor array is prepared based on 3D printing Download PDFInfo
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- CN109878071A CN109878071A CN201910156271.9A CN201910156271A CN109878071A CN 109878071 A CN109878071 A CN 109878071A CN 201910156271 A CN201910156271 A CN 201910156271A CN 109878071 A CN109878071 A CN 109878071A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000010146 3D printing Methods 0.000 title claims abstract description 21
- 229920000557 Nafion® Polymers 0.000 claims abstract description 55
- 238000007639 printing Methods 0.000 claims abstract description 47
- 229920000554 ionomer Polymers 0.000 claims abstract description 31
- 229920000642 polymer Polymers 0.000 claims abstract description 15
- 238000009835 boiling Methods 0.000 claims abstract description 14
- 229920001992 poloxamer 407 Polymers 0.000 claims abstract description 13
- 239000002904 solvent Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims description 23
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 13
- 238000010276 construction Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 12
- 229920001983 poloxamer Polymers 0.000 claims description 10
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical group CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 6
- 229940113088 dimethylacetamide Drugs 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000011165 3D composite Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 30
- 239000000463 material Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 239000011888 foil Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229920001746 electroactive polymer Polymers 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The invention discloses a kind of methods for preparing ionic pressure sensor array based on 3D printing, using ionomer solution Nafion and high boiling solvent as ion sensor raw material, it is printing supporting layer raw material with Pluronic F 127, ionic pressure sensor array is prepared by 3D composite printing.The present invention will print Nafion solution and combine with printing support gel rubber F-127, it solves the problems, such as to print Nafion solution manufacture array architecture merely, it is manufactured suitable for different types of Nafion polymer micro-structural array, to which in artificial skin, the fields such as flexible sensing have important application potentiality.
Description
Technical field
The invention belongs to 3D printing technique fields, and in particular to one kind prepares ionic pressure array sensing based on 3D printing
The method of device.
Background technique
Ionic electroactive polymer (iEAP) material is a kind of typically with sensing-driving two-way function flexible intelligent
Material, is usually in electrode-ion polymer-electrode sandwich composite film structure, and ionomer generallys use Nafion
Solution or Nafion membrane, polymer is interior to contain removable ion and hydrone.IEAP material bends under external force, interior
The elastic stress gradient that portion generates migrates removable cation to curved outside, so that space charge gradient distribution is formed,
Potential difference is formed between electrodes.Compared to traditional polymeric piezoelectric material, it has light weight, mechanical impedance and acoustic resistance
It outstanding advantages of resisting lower, processing technology various and natural bionical advantage, is cured in flexible robot, consumer electronics and human body
The fields such as health monitoring are treated to have broad application prospects.
But use at present prepares the method that ionomer is used to prepare sensor and uses cast film processes, therefore prepares
Structure it is relatively simple, be unfavorable for the utilization and extention of the material, using melting 3D printing ionomer precursor material for making
Standby ionomer senser element, this Method of printing need to hydrolyze the Nafion precursor polymeric side chains SO2 group after printing
For SO3 group, process is complex, the manufacture of senser element is used for using simple direct write printing Nafion solution, it is more difficult to prepare
Provide the sensor array of micro-structure.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of based on 3D
The method that printing prepares ionic pressure sensor array plays printing Nafion solution in conjunction with printing support gel rubber F-127
Come, solves the problems, such as to print Nafion solution manufacture array architecture merely, be suitable for Nafion polymer micro-structural array system
It makes, so that the fields such as flexible sensing have important application potentiality in artificial skin.
The invention adopts the following technical scheme:
A method of ionic pressure sensor array being prepared based on 3D printing, with ionomer solution Nafion
It is ion sensor raw material with high boiling solvent, is printing supporting layer raw material with Pluronic F 127, is prepared by 3D composite printing
Ionic pressure sensor array.
Specifically, heating magnetic agitation extremely after the Nafion solution of mass fraction 5% is mixed with high boiling solvent
The concentration of Nafion solution is 40~60%.
Further, the mass ratio of Nafion solution and high boiling solvent is 1:(1~4).
Specifically, high boiling solvent is dimethyl acetamide, dimethylformamide or ethylene glycol.
Specifically, Pluronic powder is dissolved in 4 DEG C of water, uniform gel is stirred into using planetary stirrer
The mixing mass ratio of shape, Pluronic powder and water is 1:(1~2.5).
Specifically, composite printing specifically:
S301, ionomer ink and Pluronic F127 gel are first packed into the direct write printer for having double spray heads
On, the extrusion air pressure of printing ionomer ink and F127 is adjusted respectively, so that spray head wire vent is uniform；
S302, the G code for running array model, the F127 gel structure layer of 0.2~1mm of print thickness；
After the completion of S303, gel layer printing, the polymer of 0.2~1mm of a layer thickness is printed in F127 gel layer surface
Nafion solution.
Further, in step S301, the extrusion air pressure of Pluronic F127 is 0.02~0.3MPa, scanning speed 5
~35mm/s, height of the spray head from profiled sheeting are 0.2~0.5mm, and printer thickness is set as 0.165~0.25mm.
It is heated to solidifying specifically, the composite construction that composite printing goes out is placed in 130 DEG C of vacuum, is placed in 4~20 DEG C of water
Middle removal, Pluronic F127 supporting layer obtain the Nafion ionomer of array.
Further, conductive silver paste is attached into one layer of conductive electricity in ionomer molding array structure upper and lower surface respectively
Pole paillon forms electrode-ion polymer-electrode sandwich composite construction array ionic pressure sensor.
Further, it is connect using conductive silver glue with array element, forms distributed sensor.
Compared with prior art, the present invention at least has the advantages that
A kind of 3D printing method of ionic pressure sensor array of the present invention, ionomer solution Nafion and height
Boiling point solvent is ion sensor raw material, is printing supporting layer raw material with Pluronic (F 127), is entered the arena by composite printing preparation
The method of line pressure sensor.Basic principle is that Pluronic (F 127) being capable of shape in the aqueous solution of 30~40% concentration
At gel, the gel lines stability printed is good, and precision is high, is easy the structure for printing array microstructure, and printing
Cold water can be dissolved in, print supporting layer suitable for direct write, direct write printing Nafion solution is combined with F127, it can be achieved that
The forming of Nafion labyrinth is particularly suitable for printing array pressure sensor.
Further, the present invention heats magnetic agitation after mixing the Nafion solution of mass fraction 5% with high boiling solvent
Concentration to Nafion solution is 40~60%, and the F127 ink of configuration has shear shinning property, and the lines printed connect
Continuous property is good, and precision is high, and the lines that come out printed are not easy to flow, and are able to maintain the shape of lines.
Further, using dimethyl acetamide, dimethylformamide, ethylene glycol can prevent in print procedure lines because
It heats and cracks.
Further, Pluronic powder is dissolved in 4 DEG C of water, uniform gel is stirred into using planetary stirrer
Shape can keep lines status in the gel print procedure, and solution may be implemented to boot, and be suitble to printing.
Further, the setting of printing technology parameter, printing subsequent treatment process selection, can guarantee that the F127 printed is tied
Structure is complementary with the realization of the structure of Nafion membrane.
Further, Nafion layer solidification can be guaranteed by heat treatment, and the structure after solidifying is with toughness.
Further, the extrusion air pressure of Pluronic F127 is 0.02~0.3MPa, and scanning speed is 5~35mm/s, spray
Height of the head from profiled sheeting is 0.2~0.5mm, and printer thickness is set as 0.165~025mm, can guarantee print procedure line
Item is uniform and stable.
Further, sensor upper and lower surface is connected using conductive silver paste, it is ensured that conductive material and Nafion are sensed
Layer contact is good.
Combine in conclusion the present invention will print Nafion solution with printing support gel rubber F-127, solution is beaten merely
The problem for printing Nafion solution manufacture array architecture is suitable for different types of Nafion polymer micro-structural array and manufactures,
To which in artificial skin, the fields such as flexible sensing have important application potentiality.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is present invention printing gel structure layer schematic diagram；
Fig. 2 is present invention printing polymer Nafion solution schematic diagram；
Fig. 3 is the Nafion ionomer schematic diagram of array of the present invention；
Fig. 4 is distributed sensor schematic diagram prepared by the present invention.
Specific embodiment
The present invention provides a kind of methods for preparing ionic pressure sensor array based on 3D printing, with ionomer
Solution Nafion and high boiling solvent (dimethyl acetamide, dimethylformamide or ethylene glycol) are ion sensor raw material, with general
Lan Nike (F 127) is printing supporting layer raw material, prepares array pressure sensor, including following step by composite printing
It is rapid:
S1, Nafion solution configuration；
First the Nafion solution of mass fraction 5% is mixed with higher boiling solution, the quality of Nafion and high boiling solvent
Than for 1:(1~4)；Magnetic force heating stirring is uniform, and heating is concentrated to the concentration of Nafion solution up to 40~60%, as straight
Write the ionomer ink of printing；
S2, Pluronic gel configuration；
Pluronic powder is dissolved in 4 DEG C of water, the mixing mass ratio of Pluronic (F 127) and water be 1:(1~
2.5) uniform gel, is stirred into using planetary stirrer；
S3, composite printing process；
S301, first ionomer ink and F127 gel are packed on the direct write printer for having double spray heads, are adjusted respectively
The extrusion air pressure of section printing ionomer ink and F127, so that spray head wire vent is uniform；
The extrusion air pressure of F127 is 0.02~0.3MPa, and scanning speed is 5~35mm/s, and height of the spray head from profiled sheeting is
0.2~0.5mm, printer thickness are set as 0.165~0.25mm, match with air pressure is squeezed out.
S302, the G code for running array model, the F127 gel structure layer of first 0.2~1mm of print thickness, such as Fig. 1 institute
Show；
After the completion of S303, gel layer printing, the polymer of 0.2~1mm of a layer thickness is printed in F127 gel layer surface
Nafion solution, as shown in Figure 2.
S4, the composite construction printed is placed in 130 DEG C of vacuum be heating and curing after, overall structure is placed in 4~20 DEG C of water
F127 supporting layer is removed, obtains the Nafion ionomeric polymer layer of array, as shown in Figure 3；
S5, conductive silver paste is attached into one layer of conductive electrode foil in ionomer molding array structure upper and lower surface respectively
Piece forms electrode-ion polymer-electrode sandwich composite construction array ionic pressure sensor；Or using conductive
Elargol is connected with array element, forms distributed sensor, as shown in Figure 4.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being described and shown in usually here in attached drawing is real
The component for applying example can be arranged and be designed by a variety of different configurations.Therefore, below to the present invention provided in the accompanying drawings
The detailed description of embodiment be not intended to limit the range of claimed invention, but be merely representative of of the invention selected
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1
1) solution allocation；
Use graduated cylinder measure mass fraction for 5% Nafion solution 40ml and 10ml dimethyl acetamide (DMAC)
Mixing, the concentration that magnetic agitation heating is concentrated into Nafion is 40%；
2) Pluronic gel configures；
4g F-127 white powder is weighed, is dissolved in 6g water, transparent gel is stirred into using planetary stirrer,
Preliminary test is carried out using print head, gel can be extruded into uniform filiform；
3) composite printing process；
S301, first ionomer ink and F127 gel are packed on the direct write printer for having double spray heads, are adjusted respectively
The extrusion air pressure of section printing ionomer ink and F127, so that spray head wire vent is uniform；
S302, the G code for running array model, printer parameter are set as thickness 0.25mm, scanning speed 35mm/s,
Squeeze out the F127 gel structure layer that air pressure is 0.3MPa elder generation print thickness 1mm；
After the completion of the printing of S303 gel layer, the polymer Nafion of a layer thickness 1mm is printed in F127 gel layer surface
Ink, print parameters are set as thickness 0.25mm, scanning speed 35mm/s, and extrusion air pressure is 0.3MPa；
4) composite construction printed is placed in 130 DEG C of 2h that are heating and curing of vacuum, be then slowly cooled to room temperature, then will be whole
Body structure is placed in removal F127 supporting layer in 12 DEG C of water, obtains the Nafion ionomeric polymer layer of array.
5) manufacture of material surface electrode and post-processing
Conductive silver paste is attached into one layer of conductive copper electrode foil plate in ionomer molding array structure upper and lower surface respectively,
Form electrode-ion polymer-electrode sandwich composite construction array ionic pressure sensor.
Embodiment 2
1) solution allocation；
Graduated cylinder is used to measure mass fraction mixed for the dimethylformamide (DMF) of 5% Nafion solution 20ml and 10ml
It closes, the concentration that magnetic agitation heating is concentrated into Nafion is 60%
2) Pluronic gel configures；
3g F-127 white powder is weighed, is dissolved in 7g water, transparent gel is stirred into using planetary stirrer,
Preliminary test is carried out using print head, gel can be extruded into uniform filiform；
3) composite printing process；
S301, first ionomer ink and F127 gel are packed on the direct write printer for having double spray heads, are adjusted respectively
The extrusion air pressure of section printing ionomer ink and F127, so that spray head wire vent is uniform；
S302, the G code for running array model, printer parameter are set as thickness 0.165mm, scanning speed 5mm/s,
Squeeze out the F127 gel structure layer that air pressure is 0.02MPa elder generation print thickness 0.2mm；
After the completion of the printing of S303 gel layer, the polymer of a layer thickness 0.2mm is printed in F127 gel layer surface
Nafion ink, print parameters are set as thickness 0.165mm, scanning speed 5mm/s, and extrusion air pressure is 0.02MPa；
4) composite construction printed is placed in 130 DEG C of 2h that are heating and curing of vacuum, be then slowly cooled to room temperature, then will be whole
Body structure is placed in removal F127 supporting layer in 4 DEG C of water, obtains the Nafion ionomeric polymer layer of array, as shown in Fig. 3.
5) manufacture of material surface electrode and post-processing
Conductive silver paste is attached into one layer of conductive copper electrode foil plate in ionomer molding array structure upper and lower surface respectively,
Form electrode-ion polymer-electrode sandwich composite construction array ionic pressure sensor.
Embodiment 3
1) solution allocation；
It uses graduated cylinder to measure mass fraction to mix for the ethylene glycol (DMF) of 5% Nafion solution 10ml and 10ml, magnetic
The concentration that power agitating and heating is concentrated into Nafion is 50%
2) Pluronic gel configures；
3g F-127 white powder is weighed, is dissolved in 7g water, transparent gel is stirred into using planetary stirrer,
Preliminary test is carried out using print head, gel can be extruded into uniform filiform；
3) composite printing process；
S301, first ionomer ink and F127 gel are packed on the direct write printer for having double spray heads, are adjusted respectively
The extrusion air pressure of section printing ionomer ink and F127, so that spray head wire vent is uniform；
S302, the G code for running array model, printer parameter are set as thickness 0.2mm, scanning speed 15mm/s,
Squeeze out the F127 gel structure layer that air pressure is 0.15MPa elder generation print thickness 0.6mm；
After the completion of the printing of S303 gel layer, the polymer of a layer thickness 0.6mm is printed in F127 gel layer surface
Nafion ink, print parameters are set as thickness 0.2mm, scanning speed 15mm/s, and extrusion air pressure is 0.15MPa
4) composite construction printed is placed in 130 DEG C of 3h that are heating and curing of vacuum, be then slowly cooled to room temperature, then will be whole
Body structure is placed in removal F127 supporting layer in 20 DEG C of water, obtains the Nafion ionomeric polymer layer of array, as shown in Fig. 3.
5) manufacture of material surface electrode and post-processing
Conductive silver paste is attached into one layer of conductive copper electrode foil plate in ionomer molding array structure upper and lower surface respectively,
Form electrode-ion polymer-electrode sandwich composite construction array ionic pressure sensor.
The present invention can be realized the quick manufacture of array pressure sensor, and different knots may be implemented by 3D printing method
The manufacture of the various sizes of pressure sensor of structure different sensitivity, to widen the material in flexible electronic, soft robot
Deng application.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (10)
1. a kind of method for preparing ionic pressure sensor array based on 3D printing, which is characterized in that molten with ionomer
Liquid Nafion and high boiling solvent are ion sensor raw material, are printing supporting layer raw material with Pluronic F 127, compound by 3D
Printing prepares ionic pressure sensor array.
2. the method according to claim 1 for preparing ionic pressure sensor array based on 3D printing, which is characterized in that
The concentration for heating magnetic agitation to Nafion solution after the Nafion solution of mass fraction 5% is mixed with high boiling solvent is 40
~60%.
3. the method according to claim 2 for preparing ionic pressure sensor array based on 3D printing, which is characterized in that
The mass ratio of Nafion solution and high boiling solvent is 1:(1~4).
4. the method according to claim 1 or 2 or 3 for preparing ionic pressure sensor array based on 3D printing, special
Sign is that high boiling solvent is dimethyl acetamide, dimethylformamide or ethylene glycol.
5. the method according to claim 1 for preparing ionic pressure sensor array based on 3D printing, which is characterized in that
Pluronic powder is dissolved in 4 DEG C of water, uniform gel, Pluronic powder are stirred into using planetary stirrer
The mass ratio mixed with water is 1:(1~2.5).
6. the method according to claim 1 for preparing ionic pressure sensor array based on 3D printing, which is characterized in that
Composite printing specifically:
S301, first ionomer ink and Pluronic F127 gel are packed on the direct write printer for having double spray heads, point
Ionomer ink and the extrusion air pressure of F127 Tiao Jie not be printed, so that spray head wire vent is uniform；
S302, the G code for running array model, the F127 gel structure layer of 0.2~1mm of print thickness；
After the completion of S303, gel layer printing, the polymer of 0.2~1mm of a layer thickness is printed in F127 gel layer surface
Nafion solution.
7. the method according to claim 6 for preparing ionic pressure sensor array based on 3D printing, which is characterized in that
In step S301, the extrusion air pressure of Pluronic F127 is 0.02~0.3MPa, and scanning speed is 5~35mm/s, spray head from
The height of template is 0.2~0.5mm, and printer thickness is set as 0.165~0.25mm.
8. the method according to claim 1 for preparing ionic pressure sensor array based on 3D printing, which is characterized in that
The composite construction that composite printing goes out is placed in 130 DEG C of vacuum to be heated to solidifying, is placed in 4~20 DEG C of water and removes, Pluronic
F127 supporting layer obtains the Nafion ionomer of array.
9. the method according to claim 8 for preparing ionic pressure sensor array based on 3D printing, which is characterized in that
Conductive silver paste is attached into one layer of conductive electrode paillon in ionomer molding array structure upper and lower surface respectively, forms electrode-
Ionomer-electrode sandwich composite construction array ionic pressure sensor.
10. the method according to claim 8 for preparing ionic pressure sensor array based on 3D printing, feature exist
In, connect using conductive silver glue with array element, formed distributed sensor.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111855742A (en) * | 2019-12-16 | 2020-10-30 | 西安交通大学 | Electronic skin structure for detecting damage degree of explosion to human body and detection method |
| CN112357876A (en) * | 2020-11-25 | 2021-02-12 | 四川大学 | Method for preparing polymer array by combining 3D printing with electric field induced molding |
| CN113021878A (en) * | 2021-03-26 | 2021-06-25 | 邵阳学院 | Direct-writing printing method for Nafion hollow tube structure |
| CN113176018A (en) * | 2021-03-31 | 2021-07-27 | 西安交通大学 | Unilateral electrode ionic polymer pressure sensing array and preparation method thereof |
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| CN109124821A (en) * | 2018-08-31 | 2019-01-04 | 上海大学 | A kind of building system and method for three-dimensional multi-scale vascularizing scaffold |
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| CN109878071B (en) | 2020-10-27 |
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