CN117620985A - Preparation device and preparation process for AFG material production - Google Patents
Preparation device and preparation process for AFG material production Download PDFInfo
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- CN117620985A CN117620985A CN202311556774.8A CN202311556774A CN117620985A CN 117620985 A CN117620985 A CN 117620985A CN 202311556774 A CN202311556774 A CN 202311556774A CN 117620985 A CN117620985 A CN 117620985A
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- film
- guide rail
- sliding table
- afg
- porous
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- 239000000463 material Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 58
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 55
- 239000010439 graphite Substances 0.000 claims abstract description 55
- 239000002131 composite material Substances 0.000 claims abstract description 30
- 239000007921 spray Substances 0.000 claims abstract description 30
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000005485 electric heating Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000003698 laser cutting Methods 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920001721 polyimide Polymers 0.000 claims abstract description 9
- 238000006722 reduction reaction Methods 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 15
- 239000011859 microparticle Substances 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000010000 carbonizing Methods 0.000 claims description 6
- 229920005575 poly(amic acid) Polymers 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000005530 etching Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract description 5
- 238000003763 carbonization Methods 0.000 abstract description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 12
- 239000005020 polyethylene terephthalate Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 210000004379 membrane Anatomy 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 210000002469 basement membrane Anatomy 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- VLDPXPPHXDGHEW-UHFFFAOYSA-N 1-chloro-2-dichlorophosphoryloxybenzene Chemical compound ClC1=CC=CC=C1OP(Cl)(Cl)=O VLDPXPPHXDGHEW-UHFFFAOYSA-N 0.000 description 1
- HLBLWEWZXPIGSM-UHFFFAOYSA-N 4-Aminophenyl ether Chemical compound C1=CC(N)=CC=C1OC1=CC=C(N)C=C1 HLBLWEWZXPIGSM-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The invention discloses a preparation device and a preparation process for AFG material production, wherein the preparation device comprises an operation table, and top plates are supported at four corners of the top surface of the operation table through upright posts; a first servo sliding table guide rail is fixed on the bottom surface of the top plate, a first sliding table is arranged on the first servo sliding table guide rail, an electric heating roller and a solution spray pipe are arranged on the first sliding table through a connecting piece, and a row of spray heads are arranged at the bottom of the solution spray pipe; the top surface of the operating table is provided with a second servo slipway guide rail, the second servo slipway guide rails are provided with second slipways, a support frame is fixed on the second slipways, the top end of the support frame is fixed with a guide rail, and the guide rail is provided with a laser cutting head; porous polyimide film is prepared firstly, then porous PI graphite film is prepared by high-temperature carbonization, so that ferric oxide solution can flow into porous holes of the PI graphite film, reduction reaction is carried out on each layer inside the PI graphite film under the condition of heating, metal iron atoms are generated between each layer inside, and the AFG composite material for effectively planting metal atoms is obtained.
Description
Technical Field
The invention belongs to the technical field of preparation of heat-dissipating and heat-conducting materials, and particularly relates to a preparation device and a preparation process for AFG material production.
Background
It is known that graphite materials have high heat dissipation and heat conduction properties, but in practical applications, the graphite materials have a lamellar structure, so that there is a problem of poor longitudinal heat conduction.
The AFG material is a graphite composite material with good conductivity, high strength and super-large heat storage and conduction, can be widely applied to the fields of electronic products, lithium ion battery motor materials, solar battery electrode materials, electronic information and the like, and has wide application prospect.
However, in the actual preparation process, the following problems exist that metal atoms are difficult to plant among various layers of graphite, how to effectively plant metal atoms among the inner layers of the graphite composite material, and the defect of heat conduction among the graphite layers is overcome through electronic heat conduction, so that the AFG composite material is obtained, and the technical problem to be solved is solved at present.
Disclosure of Invention
The invention provides a preparation device for producing an AFG material and a preparation process thereof, wherein a porous polyimide film is prepared firstly, then a porous PI graphite film is prepared by high-temperature carbonization, so that an iron oxide solution can flow into porous holes of the PI graphite film, and the iron oxide solution and each layer in the PI graphite film undergo a reduction reaction under the condition of heating, and metal iron atoms are generated between the layers in the PI graphite film, so that the AFG composite material for effectively planting the metal atoms is obtained, and the problems in the background art are solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: the preparation device for AFG material production comprises an operation table, wherein the operation table is supported by a plurality of supporting legs, the top surface of the operation table is of a flat platform structure, and top plates are supported by upright posts at four corners of the top surface of the operation table; the bottom surface of the top plate is fixed with a first servo sliding table guide rail, a first sliding table is arranged on the first servo sliding table guide rail, an electric heating roller and a solution spray pipe positioned at the front side of the electric heating roller are arranged on the first sliding table through a connecting piece, and a row of spray heads are arranged at the bottom of the solution spray pipe; the top of the top plate is provided with a solution tank which is communicated with the solution spray pipe through a hose; the operation panel top surface is equipped with the second servo slip table guide rail of parallel, all be equipped with the second slip table on the second servo slip table guide rail, be fixed with the support frame on the second slip table, the support frame top be fixed with second servo slip table guide rail vertically guide rail, be equipped with the laser cutting head on the guide rail.
A preparation process based on the preparation device for producing the AFG material, which comprises the following steps:
s1, preparing a polyamic acid solution, forming on a glass substrate, adding microparticles, and dehydrating at a high temperature under the protection of nitrogen to prepare a polyimide film with microparticles on the surface;
s2, putting the film into etching liquid which reacts with the microparticles, dissolving the microparticles, and cleaning to obtain a porous polyimide film;
s3, carbonizing at a high temperature in a high temperature furnace, and maintaining at a high temperature of 1000 ℃ for 30 minutes under the protection of nitrogen to obtain a porous PI carbon film;
s4, replacing nitrogen with argon for protection, and carbonizing at the ultra-high temperature of 2800 ℃ for 30 minutes to obtain a porous PI graphite film;
s5, cutting the porous PI graphite film to obtain a PI graphite film with a set size;
s6, flattening the PI graphite film with the set size on the PET substrate film to obtain a composite film;
s7, uniformly spraying an iron oxide solution on the surface of the PI graphite film through a spray head, heating by an electric heating roller, rolling, driving the spray head and the electric heating roller to move from one end of the composite film to the other end, wherein the electric heating roller raises the temperature of the upper surface of the PET substrate film below, the contact surface is bonded with the PI graphite film after being melted by heat, and meanwhile, most of the iron oxide solution flows into porous holes of the PI graphite film and undergoes a reduction reaction with each layer inside the PI graphite film under the heating condition to generate metal iron atoms, so that a porous PI graphite film material with conductive iron atoms between graphite layers, namely an AFG composite film material is prepared;
s8, cutting the redundant PET substrate film part of the AFG composite film material through a laser cutting mechanism to obtain the AFG composite film material with the required size.
Compared with the prior art, the invention has the beneficial effects that:
1. porous polyimide film is prepared firstly, then porous PI graphite film is prepared by high-temperature carbonization, so that ferric oxide solution can flow into porous holes of the PI graphite film, reduction reaction is carried out on each layer inside the PI graphite film under the condition of heating, metal iron atoms are generated between each layer inside, and the AFG composite material for effectively planting metal atoms is obtained.
2. Through the preparation facilities of this application, can accomplish PET basement membrane, PI graphite membrane's laminating place, the exhibition of complex film, with the cutting of the reduction reaction of solution and finished product, the precision is high, efficient.
3. The electric heating roller can finish the functions of flattening the composite material, heating by reduction reaction, fusing the contact surface of the composite material and the like.
4. Through the compounding of PET basement membrane and PI graphite membrane, can prevent scraping the protection to upper portion PI graphite membrane when satisfying heat dissipation heat conduction characteristic.
5. The PI graphite film is not easy to flatten, and the PET substrate film is easy to flatten and has adsorption capacity on the PI graphite film, so that the PI graphite film can be flattened conveniently as a substrate.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the placement of a PET substrate film and a PI graphite film of the present invention;
FIG. 3 is a schematic diagram of a process flow for preparing a porous PI graphite film according to the present invention;
FIG. 4 is a schematic illustration of the process flow of preparing the AFG composite membrane material of the present invention;
FIG. 5 is a schematic illustration of a process flow for preparing an AFG composite film material of the desired size of the present invention;
FIG. 6 is a schematic diagram of the process for preparing a polyamic acid solution according to the present invention.
In the figure: 1. an operation table; 2. support legs; 3. a column; 4. a top plate; 5. a first servo slipway guide rail; 6. a first sliding table; 7. a connecting piece; 8. an electric heating roller; 9. a solution spray pipe; 10. a spray head; 11. a solution tank; 12. a hose; 13. a second servo slipway guide rail; 14. a second sliding table; 15. a support frame; 16. a guide rail; 17. a laser cutting head.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the present invention provides a preparation device for AFG material production, comprising an operation table 1, wherein the operation table 1 can meet various requirements of flattening, uniformly spraying ferric oxide solution, heating reduction reaction and cutting after a film is placed thereon; the operation table 1 is supported by a plurality of support legs 2, and anti-slip shock pads are arranged at the bottoms of the support legs 2 to increase the stability of the whole equipment, and meanwhile, the height requirements of the butt joint process and the next process are met by setting the support legs with different heights; the top surface of the operating platform 1 is of a flat platform structure, and the flat platform structure can meet the flattening of a PET (polyethylene terephthalate) base film and the flattening requirement of a subsequent PI graphite film composite film; four corners of the top surface of the operating platform 1 are supported by upright posts 3, and the top plate 4 is provided with a platform for installing an electric heating roller 8, a solution spray pipe 9, a solution tank 11 and a driving mechanism; a first servo sliding table guide rail 5 is fixed on the bottom surface of the top plate 4, a first sliding table 6 is arranged on the guide rail of the first servo sliding table guide rail 5, an electric heating roller 8 and a solution spray pipe 9 positioned on the front side of the electric heating roller 8 are arranged on the first sliding table 6 through a connecting piece 7, the first sliding table 6 is driven to slide along the guide rail through the first servo sliding table guide rail 5, the electric heating roller 8 and the solution spray pipe 9 on the first sliding table 6 can be driven to synchronously slide, further the heating and rolling of the electric heating roller 8 on a composite film are completed, and the solution spray pipe 9 moves through a spray head 10 to uniformly spray ferric oxide solution; a row of spray heads 10 are arranged at the bottom of the solution spray pipe 9, and the spray heads 10 can be controlled independently, so that the film is fully covered and the solution is not wasted; the top of the top plate 4 is provided with a solution tank 11, the solution tank 11 is communicated with the solution spray pipe 9 through a hose 12, a booster pump is arranged on the hose 12, and ferric oxide solution can be provided for the solution spray pipe 9 through the solution tank 11, the booster pump and the hose 12; the top surface of the operation table 1 is provided with a second parallel servo slipway guide rail 13, the second servo slipway guide rails 13 are provided with second slipways 14, a support frame 15 is fixed on the second slipway guide rails 14, the top end of the support frame 15 is fixed with a guide rail 16 perpendicular to the second servo slipway guide rails 13, the guide rail 16 is provided with a laser cutting head 17, the second slipway guide rails 13 are used for controlling the movement of the second slipway 14, the movement of a cutting frame and the laser cutting head 17 in the X direction can be completed, the movement of the laser cutting head 17 in the Y direction can be completed through the movement of the laser cutting head 17 on the guide rail 16, and then the comprehensive movement of the laser cutting head 17 can be completed, so that the AFG composite film material can be automatically cut, and the AFG composite film material with the required size can be manufactured.
Referring to fig. 3-6, the present invention provides a preparation process based on the preparation device for producing AFG materials according to any one of the above, comprising the following steps:
s1, preparing a polyamic acid solution, namely preparing the polyamic acid solution by condensing and polymerizing diaminodiphenyl ether and pyromellitic dianhydride in a polar solvent at a low temperature, forming the polyamic acid solution on a glass substrate, adding microparticles, and dehydrating at a high temperature under the protection of nitrogen to prepare a polyimide film with the microparticles on the surface;
s2, placing the film into etching liquid which reacts with the microparticles, wherein the microparticles select silicon dioxide particles, dissolving the microparticles, and cleaning the microparticles to obtain a porous polyimide film;
s3, carbonizing at a high temperature in a high temperature furnace, and maintaining at a high temperature of 1000 ℃ for 30 minutes under the protection of nitrogen to obtain a porous PI carbon film;
s4, replacing nitrogen with argon for protection, and carbonizing at the ultra-high temperature of 2800 ℃ for 30 minutes to obtain a porous PI graphite film;
s5, cutting the porous PI graphite film to obtain a PI graphite film with a set size;
s6, flattening the PI graphite film with the set size on the PET substrate film to obtain a composite film;
s7, uniformly spraying an iron oxide solution on the surface of the PI graphite film through a spray head, heating by an electric heating roller, rolling, driving the spray head and the electric heating roller to move from one end of the composite film to the other end, wherein the electric heating roller raises the temperature of the upper surface of the PET substrate film below, the contact surface is bonded with the PI graphite film after being melted, and meanwhile, most of the iron oxide solution flows into porous holes of the PI graphite film, and performs reduction reaction with each layer inside the PI graphite film under the heating condition to generate metal iron atoms, so that the iron oxide-graphite composite film is not limited to oxidation-reduction reaction of iron oxide and carbon in graphite, and can be used for oxidation reduction of other metal atoms under the principle of not deviating from the invention, so as to prepare a porous PI graphite film material with conductive iron atoms between graphite layers, namely an AFG composite film material;
s8, cutting the redundant PET substrate film part of the AFG composite film material through a laser cutting mechanism to obtain the AFG composite film material with the required size.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The preparation device for AFG material production is characterized by comprising an operation table (1), wherein the operation table (1) is supported by a plurality of supporting legs (2), the top surface of the operation table (1) is of a flat platform structure, and top plates (4) are supported by four corners of the top surface of the operation table (1) through upright posts (3); the bottom surface of the top plate (4) is fixedly provided with a first servo sliding table guide rail (5), a first sliding table (6) is arranged on the first servo sliding table guide rail (5), the first sliding table (6) is provided with an electric heating roller (8) and a solution spray pipe (9) positioned at the front side of the electric heating roller (8) through a connecting piece (7), and a row of spray heads (10) are arranged at the bottom of the solution spray pipe (9); the top of the top plate (4) is provided with a solution tank (11), and the solution tank (11) is communicated with the solution spray pipe (9) through a hose (12); the automatic cutting device is characterized in that a second parallel sliding table guide rail (13) is arranged on the top surface of the operating table (1), a second sliding table (14) is arranged on each second sliding table guide rail (13), a supporting frame (15) is fixed on each second sliding table (14), a guide rail (16) perpendicular to each second sliding table guide rail (13) is fixed on the top end of each supporting frame (15), and a laser cutting head (17) is arranged on each guide rail (16).
2. A process for preparing a device for producing AFG materials according to claim 1, comprising the steps of:
s1, preparing a polyamic acid solution, forming on a glass substrate, adding microparticles, and dehydrating at a high temperature under the protection of nitrogen to prepare a polyimide film with microparticles on the surface;
s2, putting the film into etching liquid which reacts with the microparticles, dissolving the microparticles, and cleaning to obtain a porous polyimide film;
s3, carbonizing at a high temperature in a high temperature furnace, and maintaining at a high temperature of 1000 ℃ for 30 minutes under the protection of nitrogen to obtain a porous PI carbon film;
s4, replacing nitrogen with argon for protection, and carbonizing at the ultra-high temperature of 2800 ℃ for 30 minutes to obtain a porous PI graphite film;
s5, cutting the porous PI graphite film to obtain a PI graphite film with a set size;
s6, flattening the PI graphite film with the set size on the PET substrate film to obtain a composite film;
s7, uniformly spraying an iron oxide solution on the surface of the PI graphite film through a spray head, heating by an electric heating roller, rolling, driving the spray head and the electric heating roller to move from one end of the composite film to the other end, wherein the electric heating roller raises the temperature of the upper surface of the PET substrate film below, the contact surface is bonded with the PI graphite film after being melted by heat, and meanwhile, most of the iron oxide solution flows into porous holes of the PI graphite film and undergoes a reduction reaction with each layer inside the PI graphite film under the heating condition to generate metal iron atoms, so that a porous PI graphite film material with conductive iron atoms between graphite layers, namely an AFG composite film material is prepared;
s8, cutting the redundant PET substrate film part of the AFG composite film material through a laser cutting mechanism to obtain the AFG composite film material with the required size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311556774.8A CN117620985A (en) | 2023-11-21 | 2023-11-21 | Preparation device and preparation process for AFG material production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311556774.8A CN117620985A (en) | 2023-11-21 | 2023-11-21 | Preparation device and preparation process for AFG material production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117620985A true CN117620985A (en) | 2024-03-01 |
Family
ID=90020887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311556774.8A Pending CN117620985A (en) | 2023-11-21 | 2023-11-21 | Preparation device and preparation process for AFG material production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117620985A (en) |
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2023
- 2023-11-21 CN CN202311556774.8A patent/CN117620985A/en active Pending
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