CN107804843A - A kind of preparation technology of uniformly high heat conduction graphite film coiled material - Google Patents
A kind of preparation technology of uniformly high heat conduction graphite film coiled material Download PDFInfo
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- CN107804843A CN107804843A CN201711158854.2A CN201711158854A CN107804843A CN 107804843 A CN107804843 A CN 107804843A CN 201711158854 A CN201711158854 A CN 201711158854A CN 107804843 A CN107804843 A CN 107804843A
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Abstract
The present invention relates to a kind of heat conduction membrane material applied to the electric terminal such as field such as computer, mobile phone, LCD TV, the preparation technology of the high performance uniformly high heat conduction graphite film coiled material of particularly a kind of large scale.Its step is as follows：By polyimide film coiling, handled through pre- carbonization, carbonization, carborundum/graphene oxide dispersion spraying, graphitization and calendering technology, obtain continuous large-sized artificial uniformly high heat conduction graphite film coiled material.The present invention can prepare the ultra-thin artificial conduction graphite film that plane thermal conductivity can reach 1400 ~ 1900W/ (mk), thickness is 10 ~ 50um.The defects of being caused present invention improves the scuffing in coiled material graphite film preparation process at this stage and heat shrinkable inequality and out-of-flatness problem, graphitization temperature and time are reduced while ensureing performance；And due to being bonded to each other sintering without graphite paper, reduce the transfering process of graphite paper before and after sintering, greatly simplify calendering, cross cutting and terminal film coating process, improve the utilization rate of graphite film coiled material.
Description
Technical field
The present invention relates to a kind of radiating membrane material applied to the electric terminal such as field such as computer, mobile phone and LCD TV,
The preparation technology of the high performance uniformly high heat conduction graphite film coiled material of particularly a kind of large scale.
Background technology
At present, various types of electric terminals, such as notebook computer, LCD TV, tablet personal computer, smart mobile phone etc.,
The function of these equipment is stronger and stronger, and the heat dissipation problem that size is less and less to be caused to be difficult to avoid is more and more significant, and this is main
It is that the caloric value of electric terminal is increasing or heat generating spot is increasingly concentrated.How to solve heat dissipation problem, be all electronics
The technical barrier that terminal production firm is faced.The electrographite film Heat Conduction Material prepared using polyimide film as raw material, because
Its distinctive low-density and high thermal conductivity coefficient turn into the preferred material that hyundai electronicses class product solves radiating heat conduction technology.But
Due to the limitation of prior art processes, electrographite film is concentrated mainly on the research and development and production of flake graphite film, and production capacity is low, unfavorable
In the cross cutting and film process in later stage, production efficiency is constantly in low state with practical efficiency, therefore how efficiently to give birth to
Problem of the continuous graphite film coiled material of output into hot topic instantly.Three kinds of chis can occur during carburizing sintering for polyimide film
Very little change, the contraction of planar dimension, the dimensional contraction of thickness direction and the expansion of graphitizing process thickness direction are broadly divided into, especially
It is carbonation stage polyimide film because heat shrinkable inequality is easy to free warpage and Folding Deformation and broken hole etc. occur
Other defect, cause the flatness of overall graphite film very low and reduce product fine rate, have influence on the operation of subsequent handling with
The lifting of production capacity.And because polyimide film graphitizing process backbone structure orientation is more complicated, therefore graphitization temperature
It is very high, generally require and reach 3000 ~ 3300 DEG C, add manufacturing cost and equipment loss to a certain extent, limit artificial
The fast development of graphite film.
Also have successively at this stage correlative study team and manufacturer start to concentrate on the research of coiled material artificial stone ink film with
Production, such as middle stone, Suzhou lattice are excellent, maple and Dongguan letter hundred million etc. are expanded in Shanghai.Though certain achievement is achieved, most of producer
It is required for being bonded to each other with flexible graphite paper in graphite film preparation and is carbonized and graphitization, but flexible graphite paper is often
It is broken in graphitizing process by huge tension force, it is difficult to accomplish effectively to reuse, this preparation method undoubtedly adds
The process that graphite paper shifts before and after sintering and material and cost of labor.Coiled material graphite film is most of at present all can be in carbonization and graphite
Produce that different degrees of scuffing and flatness be low, graphitization is not exclusively and the problem of other defect in change, cause to roll
Process can not avoid the appearance of defective products, and row occur, influenceed most often such as lightning line, bubble, fisheye, cut and the problem of fracture
Whole performance and outward appearance and scrap.This is also that most of producer does not solve the problems, such as from technique yet, so as to limit high heat conduction
The continuity of performance artificial stone ink film and the lifting of breadth size, constrain the further development of artificial stone ink film production capacity.
For background above and problem, there is an urgent need to one kind can solve the problem that in existing graphite film manufacturing method there is production capacity
Low, complex procedures cost is high, shrink uneven poor flatness, a kind of uniformly height for the problems such as continuity and breadth are size-constrained processed is led
The preparation method of hot graphite film coiled material.
The content of the invention
It is an object of the invention to provide a kind of preparation technology of uniformly high heat conduction graphite film coiled material, stone can be effectively reduced
Inkization temperature and graphitization time, reduce the loss of graphitizing furnace.
To reach this purpose, the present invention specifically uses following technical scheme.
A kind of preparation technology of uniformly high heat conduction graphite film coiled material, comprises the following steps.
Step（1）It is pre- between layers by string pendulum coiling mode coiling by polyimide film slitting into specified breadth
Stay the polyimides film coiled material of uniform pore.
Step（2）By step（1）Insulation 0.5 when middle polyimides film coiled material is warming up to 200 ~ 250 DEG C with 2 ~ 3 DEG C/min ~
1h, then 2 ~ 4h is incubated when being warming up to 300 ~ 450 DEG C with 1 ~ 2 DEG C/min, room temperature is naturally cooled to, obtains pre- carbonization coiled material.
Step（3）By step（2）In pre- carbonization coiled material in the environment that absolute pressure is 10 ~ 30pa, with 5 ~ 7 DEG C/min's
Then heating rate is warming up to 650 ~ 750 DEG C from room temperature to 0.5 ~ 1h is incubated at 500 ~ 550 DEG C with 0.5 ~ 1.5 DEG C/min
0.5 ~ 1.5h of Shi Baowen, then 1 ~ 2h is incubated when being warming up to 900 DEG C ~ 1200 DEG C with 1 ~ 2 DEG C/min, room temperature is naturally cooled to, is obtained
Be carbonized coiled material.
Step（4）By step（3）Middle carbonization coiled material surface spraying carborundum/graphene oxide dispersion.
Step（5）By step（4）The carbonization coiled material of middle surface spraying carborundum/graphene oxide dispersion is protected in argon gas
Environment, with 4 ~ 8 DEG C/min heating rate from room temperature to 1000 DEG C, then it is warming up to 1700 ~ 1800 DEG C with 3 ~ 4 DEG C/min
0.5 ~ 1h is incubated, then 2000 ~ 2200 DEG C of insulation 0.5h ~ 1h, 2300 ~ 2400 DEG C of insulation 0.5h ~ 1h are warming up to 1 ~ 2 DEG C/min,
1 ~ 3h is incubated when being finally warming up to 2650 ~ 2850 DEG C with 1 ~ 2 DEG C/min, room temperature is naturally cooled to, obtains graphitization coiled material.
Step（6）By step（5）Middle graphitization coiled material is delayed through cold-pressed steel roll-in and obtains the big chi of the uniform continuity of thickness
Very little high heat conduction graphite film coiled material.
A kind of preferred scheme as the above-mentioned uniformly preparation technology of high heat conduction graphite film coiled material：Described string pendulum coiling side
Formula is the soft fine rule using 0.1 ~ 0.5mm of diameter, as coiling machine is attached to coiling on polyimide film, after coiling is completed
Take out flexible cord.
A kind of preferred scheme as the above-mentioned uniformly preparation technology of high heat conduction graphite film coiled material：Carrying out step（1）When
It is synchronous to carry out static elimination and dust removal process.
A kind of preferred scheme as the above-mentioned uniformly preparation technology of high heat conduction graphite film coiled material：Described carborundum/oxygen
Graphite alkene dispersion liquid concentration is 1wt% ~ 5wt%.
A kind of preferred scheme as the above-mentioned uniformly preparation technology of high heat conduction graphite film coiled material：Silicon carbide dispersion is warp
High temperature pre-oxidation treatment and the nanometer silicon carbide particle of silane coupler modification are scattered in DMAC solvents by supersound process, oxygen
Graphite alkene dispersion liquid is graphene oxide ultrasonic disperse in DMAC solvents.
Beneficial effects of the present invention are.
String pendulum coiling mode coiling is used in the present invention as the coiled material of uniform pore between layers, polyamides Asia can be ensured
Amine film coiled material does not produce moderate finite deformation and fracture while carbonation stage radial contraction has enough shrink spaces, can be with
The graphitization stage is reduced due to extruding bonding or fracture caused by polyimides graphite film puffing foaming, improves the flat of integral membrane
Whole degree and acceptance rate, reduce coiling mutual with graphite paper and the process and cost of transfer.
Pre- carbonization treatment is carried out to polyimides film coiled material before being carbonized in the present invention, can effectively remove former film may contain
Some moisture and impurity etc., further improve the degree of imidisation of polyimide film so that carbonation stage heat shrinkable is more
Uniformly, the graphite film that graphitized ordered degree is high, defect is few can be obtained.
Carborundum/graphene oxide is sprayed to polyimides carbonized film in the present invention, using the teaching of the invention it is possible to provide polyimides graphitization
Degree, increase carbon content, play induction graphitizing, obtain the artificial stone ink film of the few excellent performance of defect, and stone can be reduced
Inkization temperature and graphitization time, so as to reduce the loss of graphitizing furnace.
In summary, present invention process can slow down carbonation stage graphite film wrinkle, buckling deformation and flatness it is low
The problem of, improve quality and efficiency that Delanium mould is prolonged；The temperature and time in graphitization stage can be reduced, is improved poly-
Acid imide film degree of graphitization, more preferably perfect uniform high heat conduction graphite film coiled material is prepared, can largely be improved most
The breadth of whole graphite film product, meet the more project demands of client.
Embodiment
Embodiment 1.
Step（1）It is layer by string pendulum coiling mode coiling by thickness 25um polyimide film slitting into specified breadth
The polyimides film coiled material of uniform pore is reserved between layer, it is synchronous to carry out static elimination and dust removal process.
Step（2）By step（1）Middle polyimides film coiled material is incubated 0.5h when being warming up to 200 DEG C with 3 DEG C/min, then with 2
DEG C/min is incubated 2h when being warming up to 400 DEG C, room temperature is naturally cooled to, obtains pre- carbonization coiled material.
Step（3）By step（2）In pre- carbonization coiled material in the carbide furnace that absolute pressure is 10 ~ 30pa, with 6 DEG C/min's
0.5h is incubated when heating rate is from room temperature to 500 DEG C, is incubated 0.5h when being then warming up to 650 DEG C with 1.5 DEG C/min, then with
2 DEG C/min is incubated 1h when being warming up to 900 DEG C, naturally cools to room temperature, obtains the coiled material that is carbonized.
Step（4）By step（3）Middle carbonization coiled material surface spraying carborundum/graphene oxide dispersion；Spraying is by pre-
The silicon carbide dispersion concentration of oxidation processes is 1.5wt%.
Step（5）By step（4）The carbonization coiled material of middle surface spraying carborundum in the graphitizing furnace of argon gas protection environment,
With 6 DEG C/min heating rate from room temperature to 1000 DEG C, 1800 DEG C of insulation 0.5h are then warming up to 4 DEG C/min, then with 2
DEG C/min be warming up to 2000 DEG C insulation 0.5h, 2300 DEG C insulation 0.5h, be incubated 1h when being finally warming up to 2800 DEG C with 2 DEG C/min,
Room temperature is naturally cooled to, obtains graphitization coiled material.
Step（6）By step（5）Middle graphitization coiled material is delayed through cold-pressed steel roll-in and obtains the big chi of the uniform continuity of thickness
Very little high heat conduction graphite film coiled material.
The conduction graphite film that above-mentioned technique obtains is 1805W/ (mk) through measuring its mean coefficient of heat conductivity, and averag density reaches
To 2.1g/cm3, thickness is 10um ± 1um.
Embodiment 2.
Step（1）It is layer by string pendulum coiling mode coiling by thickness 38um polyimide film slitting into specified breadth
The polyimides film coiled material of uniform pore is reserved between layer, it is synchronous to carry out static elimination and dust removal process.
Step（2）By step（1）Middle polyimides film coiled material is incubated 0.5h when being warming up to 200 DEG C with 3 DEG C/min, then with 2
DEG C/min is incubated 2h when being warming up to 380 DEG C, room temperature is naturally cooled to, obtains pre- carbonization coiled material.
Step（3）By step（2）In pre- carbonization coiled material in the carbide furnace that absolute pressure is 10 ~ 30pa, with 6 DEG C/min's
0.5h is incubated when heating rate is from room temperature to 500 DEG C, is incubated 0.5h when being then warming up to 650 DEG C with 1.5 DEG C/min, then with
2 DEG C/min is incubated 1h when being warming up to 900 DEG C, naturally cools to room temperature, obtains the coiled material that is carbonized.
Step（4）By step（3）Middle carbonization coiled material surface spraying carborundum/graphene oxide dispersion；Spraying is by pre-
The silicon carbide dispersion concentration of oxidation processes is 1wt%.
Step（5）By step（4）The carbonization coiled material of middle surface spraying carborundum in the graphitizing furnace of argon gas protection environment,
With 6 DEG C/min heating rate from room temperature to 1000 DEG C, 1800 DEG C of insulation 0.5h are then warming up to 4 DEG C/min, then with 2
DEG C/min be warming up to 2200 DEG C insulation 0.5h, 2400 DEG C insulation 0.5h, be incubated 1h when being finally warming up to 2650 DEG C with 2 DEG C/min,
Room temperature is naturally cooled to, obtains graphitization coiled material.
Step（6）By step（5）Middle graphitization coiled material is delayed through cold-pressed steel roll-in and obtains the big chi of the uniform continuity of thickness
Very little high heat conduction graphite film coiled material.
The conduction graphite film that above-mentioned technique obtains is 1705W/ (mk) through measuring its mean coefficient of heat conductivity, and averag density reaches
To 2.05g/cm3, thickness is 17um ± 1um.
Embodiment 3.
Step（1）It is layer by string pendulum coiling mode coiling by thickness 38um polyimide film slitting into specified breadth
The polyimides film coiled material of uniform pore is reserved between layer, it is synchronous to carry out static elimination and dust removal process.
Step（2）By step（1）Middle polyimides film coiled material is incubated 0.5h when being warming up to 250 DEG C with 3 DEG C/min, then with 2
DEG C/min is incubated 2h when being warming up to 380 DEG C, room temperature is naturally cooled to, obtains pre- carbonization coiled material.
Step（3）By step（2）In pre- carbonization coiled material in the carbide furnace that absolute pressure is 10 ~ 30pa, with 4 DEG C/min's
0.5h is incubated when heating rate is from room temperature to 500 DEG C, 1h is incubated when being then warming up to 650 DEG C with 1.5 DEG C/min, then with 2
DEG C/min is incubated 1h when being warming up to 1000 DEG C, room temperature is naturally cooled to, obtains the coiled material that is carbonized.
Step（4）By step（3）Middle carbonization coiled material surface spraying carborundum/graphene oxide dispersion；Spraying is by pre-
The silicon carbide dispersion concentration of oxidation processes is 2.5wt%.
Step（5）By step（4）The carbonization coiled material of middle surface spraying carborundum in the graphitizing furnace of argon gas protection environment,
With 6 DEG C/min heating rate from room temperature to 1000 DEG C, 1800 DEG C of insulation 0.5h are then warming up to 4 DEG C/min, then with 2
DEG C/min be warming up to 2200 DEG C insulation 0.5h, 2400 DEG C insulation 0.5h, be incubated 1h when being finally warming up to 2850 DEG C with 2 DEG C/min,
Room temperature is naturally cooled to, obtains graphitization coiled material.
Step（6）By step（5）Middle graphitization coiled material is delayed through cold-pressed steel roll-in and obtains the big chi of the uniform continuity of thickness
Very little high heat conduction graphite film coiled material.
The conduction graphite film that above-mentioned technique obtains is 1905W/ (mk) through measuring its mean coefficient of heat conductivity, and averag density reaches
To 2.12g/cm3, thickness is 17um ± 1um.
Embodiment 4.
Step（1）It is layer by string pendulum coiling mode coiling by thickness 60um polyimide film slitting into specified breadth
The polyimides film coiled material of uniform pore is reserved between layer, it is synchronous to carry out static elimination and dust removal process.
Step（2）By step（1）Middle polyimides film coiled material is incubated 1h when being warming up to 250 DEG C with 3 DEG C/min, then with 2 DEG C/
Min is incubated 2.5h when being warming up to 400 DEG C, naturally cools to room temperature, obtains pre- carbonization coiled material.
Step（3）By step（2）In pre- carbonization coiled material in the carbide furnace that absolute pressure is 10 ~ 30pa, with 6 DEG C/min's
0.5h is incubated when heating rate is from room temperature to 500 DEG C, is incubated 0.5h when being then warming up to 650 DEG C with 1 DEG C/min, 750 DEG C
Shi Baowen 0.5h, then 1h is incubated when being warming up to 1100 DEG C with 1.5 DEG C/min, room temperature is naturally cooled to, obtains the coiled material that is carbonized.
Step（4）By step（3）Middle carbonization coiled material surface spraying carborundum/graphene oxide dispersion；Spraying is by pre-
The silicon carbide dispersion concentration of oxidation processes is 3wt%.
Step（5）By step（4）The carbonization coiled material of middle surface spraying carborundum in the graphitizing furnace of argon gas protection environment,
With 6 DEG C/min heating rate from room temperature to 1000 DEG C, 1800 DEG C of insulation 0.5h are then warming up to 3 DEG C/min, then with 2
DEG C/min be warming up to 2200 DEG C insulation 1h, 2400 DEG C insulation 1h, be incubated 1.5h when being finally warming up to 2800 DEG C with 2 DEG C/min, from
Room temperature so is cooled to, obtains graphitization coiled material.
Step（6）By step（5）Middle graphitization coiled material is delayed through cold-pressed steel roll-in and obtains the big chi of the uniform continuity of thickness
Very little high heat conduction graphite film coiled material.
The radiating graphite film that above-mentioned technique obtains is 1510W/ (mk) through measuring its mean coefficient of heat conductivity, and averag density reaches
To 1.89 g/cm3, thickness is 32um ± 1um.
Embodiment 5.
Step（1）It is layer by string pendulum coiling mode coiling by thickness 75um polyimide film slitting into specified breadth
The polyimides film coiled material of uniform pore is reserved between layer, it is synchronous to carry out static elimination and dust removal process.
Step（2）By step（1）Middle polyimides film coiled material is incubated 1h when being warming up to 250 DEG C with 3 DEG C/min, then with 2 DEG C/
Min is incubated 2.5h when being warming up to 450 DEG C, naturally cools to room temperature, obtains pre- carbonization coiled material.
Step（3）By step（2）In pre- carbonization coiled material in the carbide furnace that absolute pressure is 10 ~ 30pa, with 6 DEG C/min's
0.5h is incubated when heating rate is from room temperature to 550 DEG C, is incubated 0.5h when being then warming up to 650 DEG C with 1 DEG C/min, 750 DEG C
Shi Baowen 0.5h, then 1h is incubated when being warming up to 1200 DEG C with 1.5 DEG C/min, room temperature is naturally cooled to, obtains the coiled material that is carbonized.
Step（4）By step（3）Middle carbonization coiled material surface spraying carborundum/graphene oxide dispersion；Spraying is by pre-
The silicon carbide dispersion concentration of oxidation processes is 5wt%.
Step（5）By step（4）The carbonization coiled material of middle surface spraying carborundum in the graphitizing furnace of argon gas protection environment,
With 6 DEG C/min heating rate from room temperature to 1000 DEG C, 1800 DEG C of insulation 0.5h are then warming up to 3 DEG C/min, then with 2
DEG C/min is warming up to 2200 DEG C of insulation 1h, 2400 DEG C of insulation 1h, and 2h is incubated when being finally warming up to 2800 DEG C with 2 DEG C/min, it is natural
Room temperature is cooled to, obtains graphitization coiled material.
Step（6）By step（5）Middle graphitization coiled material is delayed through cold-pressed steel roll-in and obtains the big chi of the uniform continuity of thickness
Very little high heat conduction graphite film coiled material.
The radiating graphite film that above-mentioned technique obtains is 1405W/ (mk) through measuring its mean coefficient of heat conductivity, and density reaches
1.79 g/cm3, thickness is 50um ± 1um.
The general principle and key feature of the present invention have been described in detail above in association with real case.The technical staff of the industry
Reason is not it will be appreciated that the present invention is limited by above-mentioned embodiment, and above-mentioned embodiment described in specification with simply illustrating this hair
Bright general principle, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these
Change will be included in the claimed scope of the invention with improving, and claimed scope of the invention is by appended claims
And its equivalent thereof.
Claims (5)
1. a kind of preparation technology of uniformly high heat conduction graphite film coiled material, comprises the following steps：
Step（1）It is equal to reserve between layers by string pendulum coiling mode coiling by polyimide film slitting into specified breadth
The polyimides film coiled material in even space；
Step（2）By step（1）Middle polyimides film coiled material is incubated 0.5 ~ 1h when being warming up to 200 ~ 250 DEG C with 2 ~ 3 DEG C/min, then
2 ~ 4h is incubated when being warming up to 300 ~ 450 DEG C with 1 ~ 2 DEG C/min, room temperature is naturally cooled to, obtains pre- carbonization coiled material；
Step（3）By step（2）In pre- carbonization coiled material in the environment that absolute pressure is 10 ~ 30pa, with 5 ~ 7 DEG C/min heating
Speed is protected from room temperature to 0.5 ~ 1h is incubated at 500 ~ 550 DEG C when being then warming up to 650 ~ 750 DEG C with 0.5 ~ 1.5 DEG C/min
0.5 ~ 1.5h of temperature, then 1 ~ 2h is incubated when being warming up to 900 DEG C ~ 1200 DEG C with 1 ~ 2 DEG C/min, room temperature is naturally cooled to, is carbonized
Coiled material；
Step（4）By step（3）Middle carbonization coiled material surface spraying carborundum/graphene oxide dispersion；
Step（5）By step（4）The carbonization coiled material of middle surface spraying carborundum/graphene oxide dispersion is in argon gas protection ring
Border, with 4 ~ 8 DEG C/min heating rate from room temperature to 1000 DEG C, 1700 ~ 1800 DEG C of guarantors are then warming up to 3 ~ 4 DEG C/min
0.5 ~ 1h of temperature, then 2000 ~ 2200 DEG C of insulation 0.5h ~ 1h, 2300 ~ 2400 DEG C of insulation 0.5h ~ 1h are warming up to 1 ~ 2 DEG C/min, most
1 ~ 3h is incubated when being warming up to 2650 ~ 2850 DEG C afterwards with 1 ~ 2 DEG C/min, room temperature is naturally cooled to, obtains graphitization coiled material；
Step（6）By step（5）Middle graphitization coiled material is delayed through cold-pressed steel roll-in obtains the uniform continuity large scale volume of thickness
Fill high heat conduction graphite film.
A kind of 2. preparation technology of uniformly high heat conduction graphite film coiled material according to claim 1, it is characterised in that：Described
String pendulum coiling mode is the soft fine rule using 0.1 ~ 0.5mm of diameter, as coiling machine is attached to coiling on polyimide film, around
Volume takes out flexible cord after completing.
A kind of 3. preparation technology of uniformly high heat conduction graphite film coiled material according to claim 1, it is characterised in that：Carry out
Step（1）When synchronously carry out static elimination and dust removal process.
A kind of 4. preparation technology of uniformly high heat conduction graphite film coiled material according to claim 1, it is characterised in that：Described
Carborundum/graphene oxide dispersion concentration is 1wt% ~ 5wt%.
A kind of 5. preparation technology of uniformly high heat conduction graphite film coiled material according to claim 1 or 4, it is characterised in that：Carbon
SiClx dispersion liquid is that the nanometer silicon carbide particle through high temperature pre-oxidation treatment and silane coupler modification is scattered by being ultrasonically treated
In DMAC solvents, graphene oxide dispersion is graphene oxide ultrasonic disperse in DMAC solvents.
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| CN108658069A (en) * | 2018-06-26 | 2018-10-16 | 江西德思恩科技有限公司 | It is a kind of to support the technique for solving graphite film web-like formation problems with graphite tube |
| CN109437952A (en) * | 2018-11-30 | 2019-03-08 | 大同新成新材料股份有限公司 | A kind of method that C/C composite prepares graphite paper |
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| CN115520862A (en) * | 2022-10-10 | 2022-12-27 | 中汇睿能凤阳新材料科技有限公司 | Preparation method of artificial high-thermal-conductivity ultrathin graphite film |
| CN115595085A (en) * | 2022-09-29 | 2023-01-13 | 安徽碳华新材料科技有限公司（Cn） | 650mm wide-width artificial graphite high-conductivity film |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103380082A (en) * | 2011-03-28 | 2013-10-30 | 株式会社钟化 | Method for manufacturing carbonaceous film, method for manufacturing graphite film, roll of polymer film, and roll of carbonaceous film |
| CN103663444A (en) * | 2013-12-17 | 2014-03-26 | 张家港康得新光电材料有限公司 | Graphene composite film for heat dissipation and preparation method thereof |
| CN103906416A (en) * | 2014-04-11 | 2014-07-02 | 江苏悦达新材料科技有限公司 | Method for manufacturing artificial graphite radiating film with catalytic graphitization technology |
| CN104023505A (en) * | 2014-06-13 | 2014-09-03 | 江苏悦达新材料科技有限公司 | Method for preparing high thermal conductivity graphite film |
| CN104293308A (en) * | 2014-09-09 | 2015-01-21 | 湖南南方搏云新材料有限责任公司 | High heat conduction graphite film and its making technology |
-
2017
- 2017-11-20 CN CN201711158854.2A patent/CN107804843B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103380082A (en) * | 2011-03-28 | 2013-10-30 | 株式会社钟化 | Method for manufacturing carbonaceous film, method for manufacturing graphite film, roll of polymer film, and roll of carbonaceous film |
| CN103663444A (en) * | 2013-12-17 | 2014-03-26 | 张家港康得新光电材料有限公司 | Graphene composite film for heat dissipation and preparation method thereof |
| CN103906416A (en) * | 2014-04-11 | 2014-07-02 | 江苏悦达新材料科技有限公司 | Method for manufacturing artificial graphite radiating film with catalytic graphitization technology |
| CN104023505A (en) * | 2014-06-13 | 2014-09-03 | 江苏悦达新材料科技有限公司 | Method for preparing high thermal conductivity graphite film |
| CN104293308A (en) * | 2014-09-09 | 2015-01-21 | 湖南南方搏云新材料有限责任公司 | High heat conduction graphite film and its making technology |
Non-Patent Citations (2)
| Title |
|---|
| 卢亢: "聚酰亚胺基石墨膜的制备与结构、传导性能的关联性研究", 《万方学位论文》 * |
| 吴洁: "碳化硅增强聚酰亚胺复合薄膜制备及其碳化研究", 《万方学位论文》 * |
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| CN113233453A (en) * | 2021-06-04 | 2021-08-10 | 四川大学 | High-electric-conductivity heat-conduction graphite material and preparation method thereof |
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| CN115595085A (en) * | 2022-09-29 | 2023-01-13 | 安徽碳华新材料科技有限公司（Cn） | 650mm wide-width artificial graphite high-conductivity film |
| CN115520862A (en) * | 2022-10-10 | 2022-12-27 | 中汇睿能凤阳新材料科技有限公司 | Preparation method of artificial high-thermal-conductivity ultrathin graphite film |
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