CN110385850A - The method of electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit pattern - Google Patents
The method of electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit pattern Download PDFInfo
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- CN110385850A CN110385850A CN201910663644.1A CN201910663644A CN110385850A CN 110385850 A CN110385850 A CN 110385850A CN 201910663644 A CN201910663644 A CN 201910663644A CN 110385850 A CN110385850 A CN 110385850A
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- Prior art keywords
- spray printing
- electronic circuit
- flexible electronic
- circuit pattern
- electrohydrodynamics
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/379—Handling of additively manufactured objects, e.g. using robots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
-
- 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
-
- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
Abstract
The invention discloses the methods of electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit pattern, it is related to flexible electronic circuit pattern manufacturing technology field, step includes: A, on flexible base board tiles and is fixed on electrohydrodynamics spray printing device spray printing platform；B, with the spraying system of electrohydrodynamics spray printing device to flexible base board upper surface spray printing it is inorganic/organic conductive material made of spray printing solution；C, by flexible base board spray printing flexible electronic circuit pattern one down, opposite face upward, on the spray printing platform for tiling and being fixed on electrohydrodynamics spray printing device, the melting PLA solution of the uniform hybrid nanoscale granular graphite alkene powder of spray printing；D, flexible base board is heat-treated, takes out cooled to room temperature after the completion；E, electrode is made at the spray printing path whole story position both ends of spray printing 3 D deformation pattern, the positive and negative anodes of power supply is connected on made electrode.The present invention has the advantages that realize different curvature deformation.
Description
Technical field
The present invention relates to flexible electronic circuit pattern manufacturing technology fields, and in particular to electrohydrodynamics spray printing any three
The method for tieing up flexible electronic circuit pattern.
Background technique
Flexible electronic is the new electronic skill being produced on organic/inorganic materials electronic device on flexibility/Drawability substrate
Art, including flexible sensor, flexible electronic displays, Flexible light-emitting diodes, flexible solar battery, flexible radio frequency device etc.
Flexible electronic device has broad application prospects in fields such as information, medical treatment, national defence.Currently, flexible electronic device is mostly
The device of two-dimension plane structure type, morphotropism are poor, it is difficult to fit with the D structure surface shape of three-dimension object.In order to
It realizes conversion of the flexible electronic device from planar structure to three-dimensional structure, first pastes specific plane curve structure selectivity
On the elastic base plate of a tensional state, substrate is then unclamped, substrate starts to shrink, and then plane curve just " is stood
Come ", form the flexible electronic of the three-dimensional structures such as waveform, paper folding shape, three-dimensional spiral shape.The flexible electronic system of this three-dimensional structure
Make that method is although fairly simple, but the flexible electronic three-dimensional structure shape manufactured is fairly simple, and flexible electronic institute
The three-dimensional structure deformation of generation is limited by flexibility/Drawability base plate deformation, can not be according to three-dimension object different curvature surface
The demand of shape generates its corresponding deformation, cannot be with three-dimension object so as to cause the three-dimension flexible electronic device of produced deformation
Surface progress is seamless applying, and flexible electronic device easily falls off from three-dimensional object surface in use.
Summary of the invention
In order to overcome the shortcomings of that background technique, the present invention provide a kind of electrohydrodynamics spray for realizing different curvature shape
Print the method for Arbitrary 3 D flexible electronic circuit pattern.
The technical solution adopted in the present invention: the side of electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit pattern
Method, step include:
A, on the spray printing platform that flexible base board is tiled to and is fixed on electrohydrodynamics spray printing device；
B, upper surface spray printing with from the spraying system of electrohydrodynamics spray printing device to flexible base board is inorganic/organic conductive material
Manufactured spray printing solution completes spray printing and solidifies all circuit patterns；
C, by flexible base board spray printing flexible electronic circuit pattern one down, opposite one side upward, tiles and is fixed on
On the spray printing platform of electrohydrodynamics spray printing device, the melting polylactic acid of the uniform hybrid nanoscale granular graphite alkene powder of spray printing
Solution completes the spray printing of 3 D deformation pattern；
D, flexible base board is heat-treated, takes out carry out cooled to room temperature after the completion；
E, electrode is made at the spray printing path whole story position both ends of spray printing 3 D deformation pattern, the positive and negative anodes of power supply is connected to institute
On the electrode of production, by adjusting the size of source current or voltage, to change temperature height, three-dimension flexible electronic circuit is realized
Variation of the three dimensional curvature of pattern between three-dimensional state and flat state.
The material of flexible base board is dimethyl silicone polymer, the poly terephthalic acid by hydrophilic treated in the step A
One in the flexible materials such as glycol ester, polyvinyl alcohol, polyimides, polyethylene naphthalate, textile material, the scraps of paper
Kind.
The step B includes:
B1, spray printing solution made of inorganic/organic conductive material is fitted into spraying system；
B2, the flexible electronic circuit pattern of pre- spray printing is imported into the control system of electrohydrodynamics spray printing device or in electricity
The flexible electronic circuit pattern of pre- spray printing is drawn in the control system of fluid dynamics spray printing device；
The print flexible electronic circuit pattern that B3, basis are sprayed in advance plans the spray printing path of pre- spray printing flexible electronic circuit pattern, and will
The data file in the pre- spray printing flexible electronic circuit pattern path of spray printing coordinates measurement；
B4, according to the width of pre- spray printing flexible electronic circuit pattern, the operating voltage of setting electric current body dynamics spray printing, injection are high
The technological parameters such as degree, liquid inventory and spray printing platform movement speed；
B5, it is incited somebody to action according to the data file of step B3 by the control system movable spray-printing platform of electrohydrodynamics spray printing device
The spray head of spraying system is located in the initial position in pre- spray printing flexible electronic circuit pattern spray printing path, is joined with the technique of setting
Number carries out flexible electronic circuit pattern spray printing, while spray printing platform along the spray printing path of planning in the upper surface of flexible base board
It is heating and curing to the circuit pattern of spray printing, until completing spray printing and solidifying all circuit patterns, spray printing platform is moved
Spray printing position out.
The step C includes:
C1, the polylactic acid powder of uniformly mixed Nano grade particle and graphene powder are encased in and apply pressure by air pump
The spraying system with heating function in；
C2, it pre- spray printing can be generated into 3 D deformation pattern imported into the control system of electrohydrodynamics spray printing device or in electricity
Pre- spray printing is drawn in the control system of fluid dynamics spray printing device can generate 3 D deformation pattern；
C3,3 D deformation pattern can be generated according to pre- spray printing, plans that pre- spray printing can generate the spray printing path of 3 D deformation pattern, and
The pre- spray printing of spray printing coordinates measurement can be generated to the data file in 3 D deformation pattern path；
C4, the width that can generate 3 D deformation pattern according to pre- spray printing, the operating voltage of setting electric current body dynamics spray printing, spray
Penetrate the technological parameters such as height, air pump pressure and spray printing platform movement speed；
C5, according to the data file of step C3, by the control system movable spray-printing platform of electrohydrodynamics spray printing device, and
The spray head for applying the stressed spraying system with heating function by air pump, which is located in pre- spray printing, can generate 3 D deformation figure
The initial position in case path, in the upper surface of flexible base board, can generate 3 D deformation figure along spray printing with the technological parameter of setting
Case path carries out 3 D deformation pattern spray printing, and spray printing platform is removed and sprayed by the spray printing until completing all 3 D deformation patterns
Print position.
Graphene and the mass ratio of polylactic acid are 0.1%-1% in the step C.
The temperature of heat treatment in the step D is 70 DEG C, and the continuous heating time is 15 ~ 20s.
By adjusting the size of source current or voltage in the step E, when the power provided gradually increases, temperature is gradually
Increase, the three dimensional curvature of three-dimension flexible electronic circuit pattern gradually changes, and is gradually varied to plane by its initial three-dimensional state
State；When closing power supply, with the reduction of temperature, flexible electronic circuit pattern is tapered to initial three-dimensional by flat state
State.
The beneficial effects of the present invention are:
1, the technical program realizes the manufacture of three-dimension flexible electronic circuit pattern, work using an electrohydrodynamics spray printing device
Skill process is simple, practicability and good economy performance, can satisfy the manufacture of further customization electronic product structural and functional properties combined
It needs.
2, by design it is different can generate 3 D deformation pattern, realize the three-dimension flexible electronic circuit pattern of arbitrary shape
Preparation.
3, flexible electronic flexible base board is made to generate corresponding deformation according to the demand of three-dimension object different curvature surface shape,
The three-dimension flexible electronic device of produced deformation can realize seamless applying, flexible electronic in use with three-dimensional object surface
Device is not easy to fall off from three-dimensional object surface, has higher reliability.
Detailed description of the invention
Fig. 1 is that the method for the present invention prepares flexible electronic circuit pattern.
Fig. 2 is that the method for the present invention preparation can generate 3 D deformation pattern.
Fig. 3 is the three-dimension flexible electronic circuit of the method for the present invention preparation.
Specific embodiment
Embodiments of the present invention is further illustrated with reference to the accompanying drawing: the present invention uses the electrohydrodynamics of double spray heads
Jet printing method prepares three-dimension flexible electronic circuit pattern, the preparation method is that utilizing electrohydrodynamics Printing techniques point
Not by different materials spray printing on two surfaces up and down of flexible base board, wherein using the spray head spray printing of spraying system on a surface
Spray printing solution made of inorganic/organic conductive material prepares flexible electronic circuit pattern；Stressed have is applied by air pump to add
The spray head of the spraying system of heat function, the melting of the uniform hybrid nanoscale granular graphite alkene powder of spray printing is poly- on the other surface
The preparation of lactic acid (PLA) solution can generate 3 D deformation pattern.
Electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit patterning method of the invention the following steps are included:
(1) electrohydrodynamics spray printing it is inorganic/organic conductive material made of spray printing solution prepare flexible electronic circuit pattern,
Realization process is as follows:
1) spray printing solution made of inorganic/organic conductive material is fitted into spraying system；
2) dimethyl silicone polymer surface Jing Guo hydrophilic treated (PDMS), polyethylene terephthalate (PET), poly- second
The flexibility material such as enol (PVA), polyimides (PI), polyethylene naphthalate (PEN), textile material, scraps of paper
The two-dimensional surface of suitable size is made as flexible base according to pre-prepared flexible electronic specification requirement in one of material material
Plate, on the spray printing platform for tiling and being fixed on electrohydrodynamics spray printing device；
3) the flexible electronic circuit pattern of pre- spray printing is imported into the control system of electrohydrodynamics spray printing device or in electricity
The flexible electronic circuit pattern of pre- spray printing is drawn in the control system of fluid dynamics spray printing device；
4) according to the flexible electronic circuit pattern of pre- spray printing, the spray printing path of pre- spray printing flexible electronic circuit pattern is planned, and will
The data file in the pre- spray printing flexible electronic circuit pattern path of spray printing coordinates measurement；
5) according to the width of pre- spray printing flexible electronic circuit pattern, the operating voltage of setting electric current body dynamics spray printing, injection are high
The technological parameters such as degree, liquid inventory and spray printing platform movement speed；
6) according to the data file in pre- spray printing flexible electronic circuit pattern path, pass through the control of electrohydrodynamics spray printing device
The spray head of spraying system equipped with inorganic/organic conductive material spray printing solution is located in pre- spray printing by system movable spray-printing platform
The initial position in flexible electronic circuit pattern spray printing path, it is flat with the operating voltage of setting, jetting height, liquid inventory and spray printing
The technological parameters such as platform movement speed, in the upper surface of flexible base board, along the spray of the pre- spray printing flexible electronic circuit pattern of planning
It prints path and carries out flexible electronic circuit pattern spray printing, while spray printing platform is heating and curing to the circuit pattern of spray printing, directly
To completion spray printing and solidify all circuit patterns, spray printing platform is removed into spray printing position.
(2) melting polylactic acid (PLA) solution of the uniform hybrid nanoscale granular graphite alkene powder of electrohydrodynamics spray printing
Preparation can generate 3 D deformation pattern, realize that process is as follows:
1) flexible base board is taken off from spray printing platform, and down by the one of spray printing flexible electronic circuit pattern, on the contrary
One side upward, on the spray printing platform for tiling and being fixed on electrohydrodynamics spray printing device；
2) polylactic acid (PLA) powder of uniformly mixed Nano grade particle and graphene powder are encased in and are applied by air pump
In the spraying system with heating function of pressure；
3) pre- spray printing 3 D deformation pattern can be generated to imported into the control system of electrohydrodynamics spray printing device or in electricity
Pre- spray printing is drawn in the control system of fluid dynamics spray printing device can generate 3 D deformation pattern；
4) 3 D deformation pattern can be generated according to pre- spray printing, plans that pre- spray printing can generate the spray printing path of 3 D deformation pattern, and
The pre- spray printing of spray printing coordinates measurement can be generated to the data file in 3 D deformation pattern path；
5) according to the width that can generate 3 D deformation pattern of pre- spray printing, the operating voltage of setting electric current body dynamics spray printing, spray
Penetrate the technological parameters such as height, air pump pressure and spray printing platform movement speed；
6) according to the data file that can generate 3 D deformation pattern path of spray printing, pass through the control of electrohydrodynamics spray printing device
System movable spray-printing platform processed, and the spray head for applying the stressed spraying system with heating function by air pump is located in pre-
Spray printing can generate the initial position in 3 D deformation pattern path, with the operating voltage of setting, jetting height, air pump pressure and spray printing
The technological parameters such as platform movement speed can generate 3 D deformation pattern path along spray printing and carry out in the upper surface of flexible base board
Spray printing platform is removed spray printing position by 3 D deformation pattern spray printing, the spray printing until completing all 3 D deformation patterns.
The mass ratio of graphene and polylactic acid in the present embodiment is 0.1%-1%, which obtains after test of many times.
(3) flexible base board of spray printing 3 D deformation pattern is taken off from spray printing platform, puts it into warmed-up temperature
To be heat-treated in 70 DEG C of convection oven, 15 ~ 20s of continuous heating takes out it from oven, naturally cools to room degree
Temperature, two-dimensional surface flexible base board are deformed into required 3D shape, and planar flexible electronic circuit pattern is deformed by two-dimensional shapes
For three-dimension flexible electronic circuit pattern.
(4) electrode is made at the spray printing path whole story position both ends of spray printing 3 D deformation pattern, the positive and negative anodes of power supply is connected
It is connected on made electrode, by adjusting the size of source current or voltage, when the power provided gradually increases, temperature is gradually
Increase, the three dimensional curvature of three-dimension flexible electronic circuit pattern gradually change be gradually varied to by its initial three-dimensional state it is planar
State, when closing power supply, with the reduction of temperature, flexible electronic circuit pattern is tapered to initial three-dimensional shape by flat state
State.
Compared with prior art, the invention has the advantages that:
(1) manufacture of three-dimension flexible electronic circuit pattern, process flow letter are realized using an electrohydrodynamics spray printing device
Single, practicability and good economy performance can satisfy the needs of further customization electronic product structural and functional properties combined manufacture.
(2) by design it is different can generate 3 D deformation pattern, realize the three-dimension flexible electronic circuitry of arbitrary shape
The preparation of case.
(3) flexible electronic flexible base board is made to generate corresponding become according to the demand of three-dimension object different curvature surface shape
Shape, three-dimension flexible electronic device and the three-dimensional object surface of produced deformation can realize it is seamless applying, it is flexible in use
Electronic device is not easy to fall off from three-dimensional object surface, has higher reliability.
Every technical staff's notice: of the invention although the present invention is described according to above-mentioned specific embodiment
Invention thought be not limited in the invention, any repacking with inventive concept will all be included in this patent protection of the patent right
In range.
Claims (7)
1. the method for electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit pattern, which is characterized in that its step includes:
A, on the spray printing platform that flexible base board is tiled to and is fixed on electrohydrodynamics spray printing device；
B, upper surface spray printing with from the spraying system of electrohydrodynamics spray printing device to flexible base board is inorganic/organic conductive material
Manufactured spray printing solution completes spray printing and solidifies all circuit patterns；
C, by flexible base board spray printing flexible electronic circuit pattern one down, opposite one side upward, tiles and is fixed on
On the spray printing platform of electrohydrodynamics spray printing device, the melting polylactic acid of the uniform hybrid nanoscale granular graphite alkene powder of spray printing
Solution completes the spray printing of 3 D deformation pattern；
D, flexible base board is heat-treated, takes out after the completion and carries out cooled to room temperature；
E, electrode is made at the spray printing path whole story position both ends of spray printing 3 D deformation pattern, the positive and negative anodes of power supply is connected to institute
On the electrode of production, by adjusting the size of source current or voltage, to change temperature height, three-dimension flexible electronic circuit is realized
Variation of the three dimensional curvature of pattern between three-dimensional state and flat state.
2. the method for electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit pattern according to claim 1, special
Sign is that the material of flexible base board is the dimethyl silicone polymer by hydrophilic treated, poly terephthalic acid second in the step A
One of flexible materials such as diol ester, polyvinyl alcohol, polyimides, polyethylene naphthalate, textile material, the scraps of paper.
3. the method for electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit pattern according to claim 1, special
Sign is that the step B includes:
B1, spray printing solution made of inorganic/organic conductive material is fitted into spraying system；
B2, the flexible electronic circuit pattern of pre- spray printing is imported into the control system of electrohydrodynamics spray printing device or in electricity
The flexible electronic circuit pattern of pre- spray printing is drawn in the control system of fluid dynamics spray printing device；
The print flexible electronic circuit pattern that B3, basis are sprayed in advance plans the spray printing path of pre- spray printing flexible electronic circuit pattern, and will
The data file in the pre- spray printing flexible electronic circuit pattern path of spray printing coordinates measurement；
B4, according to the width of pre- spray printing flexible electronic circuit pattern, the operating voltage of setting electric current body dynamics spray printing, injection are high
The technological parameters such as degree, liquid inventory and spray printing platform movement speed；
B5, it is incited somebody to action according to the data file of step B3 by the control system movable spray-printing platform of electrohydrodynamics spray printing device
The spray head of spraying system is located in the initial position in pre- spray printing flexible electronic circuit pattern spray printing path, is joined with the technique of setting
Number carries out flexible electronic circuit pattern spray printing, while spray printing platform along the spray printing path of planning in the upper surface of flexible base board
It is heating and curing to the circuit pattern of spray printing, until completing spray printing and solidifying all circuit patterns, spray printing platform is moved
Spray printing position out.
4. the method for electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit pattern according to claim 1, special
Sign is that the step C includes:
C1, the polylactic acid powder of uniformly mixed Nano grade particle and graphene powder are encased in and apply pressure by air pump
The spraying system with heating function in；
C2, it pre- spray printing can be generated into 3 D deformation pattern imported into the control system of electrohydrodynamics spray printing device or in electricity
Pre- spray printing is drawn in the control system of fluid dynamics spray printing device can generate 3 D deformation pattern；
C3,3 D deformation pattern can be generated according to pre- spray printing, plans that pre- spray printing can generate the spray printing path of 3 D deformation pattern, and
The pre- spray printing of spray printing coordinates measurement can be generated to the data file in 3 D deformation pattern path；
C4, the width that can generate 3 D deformation pattern according to pre- spray printing, the operating voltage of setting electric current body dynamics spray printing, spray
Penetrate the technological parameters such as height, air pump pressure and spray printing platform movement speed；
C5, according to the data file of step C3, by the control system movable spray-printing platform of electrohydrodynamics spray printing device, and
The spray head for applying the stressed spraying system with heating function by air pump, which is located in pre- spray printing, can generate 3 D deformation figure
The initial position in case path, in the upper surface of flexible base board, can generate 3 D deformation figure along spray printing with the technological parameter of setting
Case path carries out 3 D deformation pattern spray printing, and spray printing platform is removed and sprayed by the spray printing until completing all 3 D deformation patterns
Print position.
5. the method for electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit pattern according to claim 1, special
Sign is that graphene and the mass ratio of polylactic acid are 0.1%-1% in the step C.
6. the method for electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit pattern according to claim 1, special
Sign is that the temperature of the heat treatment in the step D is 70 DEG C, and the continuous heating time is 15 ~ 20s.
7. the method for electrohydrodynamics spray printing Arbitrary 3 D flexible electronic circuit pattern according to claim 1, special
Sign is: by adjusting the size of source current or voltage in the step E, when the power provided gradually increases, temperature is gradually
Increase, the three dimensional curvature of three-dimension flexible electronic circuit pattern gradually change be gradually varied to by its initial three-dimensional state it is planar
State；When closing power supply, with the reduction of temperature, flexible electronic circuit pattern is tapered to initial three-dimensional shape by flat state
State.
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| CN112848268A (en) * | 2020-12-21 | 2021-05-28 | 青岛理工大学 | Fractal curve stretchable heating circuit printing-based 4D printing method |
| CN112903102A (en) * | 2021-01-21 | 2021-06-04 | 华中科技大学 | Chip-level spectrometer and preparation method thereof |
| CN113096851A (en) * | 2021-03-17 | 2021-07-09 | 华中科技大学 | Complex curved surface high-adhesion conductive pattern structure and manufacturing method thereof |
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| CN110385850B (en) | 2021-06-22 |
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