CN109293894A - A kind of aromatic heterocyclic polymer film and its preparation method and application of high intensity UV resistant - Google Patents
A kind of aromatic heterocyclic polymer film and its preparation method and application of high intensity UV resistant Download PDFInfo
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- CN109293894A CN109293894A CN201811145334.2A CN201811145334A CN109293894A CN 109293894 A CN109293894 A CN 109293894A CN 201811145334 A CN201811145334 A CN 201811145334A CN 109293894 A CN109293894 A CN 109293894A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G61/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G61/12—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
- C08G61/122—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides
- C08G61/123—Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule derived from five- or six-membered heterocyclic compounds, other than imides derived from five-membered heterocyclic compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2261/00—Macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain of the macromolecule
- C08G2261/30—Monomer units or repeat units incorporating structural elements in the main chain
- C08G2261/32—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain
- C08G2261/322—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed
- C08G2261/3228—Monomer units or repeat units incorporating structural elements in the main chain incorporating heteroaromatic structural elements in the main chain non-condensed containing nitrogen and oxygen as heteroatoms
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2365/00—Characterised by the use of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Derivatives of such polymers
Abstract
The present invention relates to thin film technique fields, more particularly to a kind of aromatic heterocyclic polymer film and its preparation method and application of high-intensitive UV resistant, the aromatic heterocyclic polymer film stretches film-forming process through acid bath wet process by aromatic heterocyclic polymer resin and is made, the aromatic heterocyclic polymer resin the preparation method comprises the following steps: with terephthalic acid (TPA) and/or phthalic acid, azobenzene -4,4 '-dioctyl phthalate and/or azobenzene -3,3 '-dioctyl phthalate, hydrazine sulfate are reaction raw materials, polycondensation reaction is carried out in oleum, obtains the aromatic heterocyclic polymer resin.Aromatic heterocyclic polymer film intensity with higher of the invention and excellent UV resistant performance, also there is the performances such as good dimensional stability, heat resistance, resistance to oxidation, electrical isolation, solvent resistance, special electric conductivity and electroluminescent, excellent combination property.
Description
Technical field
The present invention relates to thin film technique fields, and in particular to it is a kind of high intensity UV resistant aromatic heterocyclic polymer film and
Preparation method and application.
Background technique
In heterocyclic compound cyclic organic compounds, constitute there are also other atomic time outside the atom carbon atom of ring, it is this kind of
Cyclic organic compounds are called heterocyclic compound, and non-carbon is known as hetero atom.The most common hetero atom is oxygen and sulphur, on heterocycle
Can have a hetero atom, can also there are two or more hetero atom, hetero atom can be a kind of atom, be also possible to two kinds
Different atoms.As cycloalkane, heterocycle can also be divided into alicyclic heterocyclic and heteroaromatic two major classes.In general, heteroaromatic
Ring system has a degree of stability and armaticity, and in general chemical reaction, ring is not easily broken.Part heteroaromatic can gather
Synthetic macromolecule resin has extensive potential using value due to its unique excellent performance.
Summary of the invention
In order to overcome shortcoming and defect existing in the prior art, the purpose of the present invention is to provide a kind of resistance to purples of high intensity
The aromatic heterocyclic polymer film of outside line, the aromatic heterocyclic polymer film intensity with higher and excellent UV resistant performance,
Also there is good dimensional stability, heat resistance, resistance to oxidation, electrical isolation, solvent resistance, special electric conductivity and electroluminescent
Etc. performances, excellent combination property.
It is another object of the present invention to provide a kind of preparations of the aromatic heterocyclic polymer film of high-intensitive UV resistant
Method, the preparation method step is simple, convenient operation and control, and quality is stablized, and high production efficiency, production cost is low, can be extensive
Chemical industry production.
Another purpose of the invention is that providing a kind of application of the aromatic heterocyclic polymer film of high-intensitive UV resistant.
The purpose of the invention is achieved by the following technical solution: a kind of aromatic heterocyclic polymer of high intensity UV resistant is thin
Film, the aromatic heterocyclic polymer film include aromatic heterocyclic polymer resin, and the aromatic heterocyclic polymer resin includes with Am-BnTable
The polymer chain shown, wherein A and B is the repetitive unit for constituting polymer chain backbone, and repetitive unit A, B are with random order
Arrangement, m and n are positive integer；
The structural formula of the repetitive unit A are as follows:
The structural formula of the repetitive unit B are as follows:
Preferably, there is random copolymer configuration, alternate copolymer configuration or block copolymer configuration in the main chain,
That is, the polymerization methods of the aromatic heterocyclic polymer resin can be random copolymerization, alternating copolymerization or block copolymerization.
Preferably, the aromatic heterocyclic polymer resin the preparation method comprises the following steps: with terephthalic acid (TPA) and/or phthalic acid,
3,3 '-dioctyl phthalate of 4,4 '-dioctyl phthalate of azobenzene-and/or azobenzene-, hydrazine sulfate are reaction raw materials, are contracted in oleum
Poly- reaction, obtains the aromatic heterocyclic polymer resin.
Specifically, polymerized monomer (terephthalic acid (TPA) and/or phthalic acid, 4,4 '-dioctyl phthalate of azobenzene-and/or azo
3,3 '-dioctyl phthalate of benzene -), the molar ratio of hydrazine sulfate and oleum be 1:(1.01-5.0): (5-15), wherein oleum rubs
That number is with SO in oleum3Molal quantity meter.
Wherein, polymerized monomer (terephthalic acid (TPA) and/or phthalic acid) and polymerized monomer (4,4 '-dioctyl phthalate of azobenzene-
And/or azobenzene -3,3 '-dioctyl phthalate) molar ratio be (0.01-0.99): (0.99-0.01).In order to save cost, preferably
, polymerized monomer (terephthalic acid (TPA) and/or phthalic acid) and polymerized monomer (4,4 '-dioctyl phthalate of azobenzene-and/or azo
Benzene -3,3 '-dioctyl phthalate) molar ratio be (0.90-0.99): (0.10-0.01).
Further, the molar ratio of terephthalic acid (TPA) and phthalic acid is (0-1): (1-0), 4,4 '-diformazan of azobenzene-
The molar ratio of acid and azobenzene -3,3 '-dioctyl phthalate is (0-1): (1-0).Applicants have found that when being single with terephthalic acid (TPA)
When body polymerize, although obtained aromatic heterocyclic polymer resin intensity is higher, shrinking percentage is slightly bigger than normal, and phthalic acid is added
When polymerizeing together as monomer, for obtained aromatic heterocyclic polymer tree on the basis of keeping higher-strength, shrinking percentage is available
Improve.
Preferably, the aromatic heterocyclic polymer resin is modified using inorganic filler.
Preferably, the inorganic filler is mica, carbon black, white carbon black, talcum powder, wollastonite, nitride, carbide, oxygen
At least one of compound, sulfate, carbonate, silicate, fluosilicate and phosphate.
Preferably, the nitride is silicon nitride and/or boron nitride；The carbide is silicon carbide and/or boron carbide；Institute
Stating oxide is at least one of calcium oxide, zinc oxide, magnesia, iron oxide, silica and titanium dioxide.
Preferably, the silica is nano silica, and the titanium dioxide is nano-titanium dioxide.
Preferably, the sulfate be calcium sulfate, magnesium sulfate, zinc sulfate, barium sulfate, ferric sulfate, in ferrous sulfate extremely
Few one kind；The silicate is at least one of sodium metasilicate, alumina silicate and magnesium silicate；The carbonate is calcium carbonate, carbonic acid
At least one of magnesium and zinc carbonate；The fluosilicate is at least one of prodan, potassium fluosilicate and magnesium fluosilicate；
The phosphate is at least one of calcium phosphate, calcium monohydrogen phosphate, magnesium phosphate and magnesium monohydrogen phosphate.
Preferably, the aromatic heterocyclic polymer resin is modified using modifying agent, and the modifying agent is glass microballoon, crystalline substance
At least one of the short fine, silicone of palpus, carbon fiber, glass fibre, Fanglun slurry cake, aramid fiber and polytetrafluoroethylene (PTFE).
Another object of the present invention is achieved through the following technical solutions: a kind of heteroaromatic polymerization of high intensity UV resistant
The preparation method of object film, the aromatic heterocyclic polymer film stretch film-forming process through acid bath wet process by aromatic heterocyclic polymer resin
It is made.
An also purpose of the invention is achieved through the following technical solutions: a kind of heteroaromatic polymerization of high intensity UV resistant
The application of object film, the aromatic heterocyclic polymer film are applied to high temperature gummed tape, FPC substrate, COF substrate, FCCL substrate, carbonization
Film base material, graphitization heat dissipation film base material, high temperature dwell cuticula, LED light bar, OLED Flexible Displays substrate, conductive film base material, high temperature are exhausted
Velum or hand-set lid.
The beneficial effects of the present invention are: aromatic heterocyclic polymer film intensity with higher of the invention and excellent resistance to
Imparted energy, also has good dimensional stability, heat resistance, resistance to oxidation, electrical isolation, solvent resistance, special electric conductivity
And the performances such as electroluminescent, excellent combination property.
Preparation method step of the invention is simple, convenient operation and control, and quality is stablized, and high production efficiency, production cost is low,
It can large-scale industrial production.
The aromatic heterocyclic polymer film of high-intensitive UV resistant of the invention high temperature gummed tape, FPC substrate, COF substrate,
FCCL substrate, carbonization film base material, graphitization heat dissipation film base material, high temperature dwell cuticula, LED light bar, OLED Flexible Displays substrate, conduction
The application of film base material, high-temperature insulation film or hand-set lid.
Specific embodiment
For the ease of the understanding of those skilled in the art, below with reference to embodiment, the present invention is further illustrated, real
The content that the mode of applying refers to not is limitation of the invention.
Embodiment 1
A kind of aromatic heterocyclic polymer film of high intensity UV resistant, the aromatic heterocyclic polymer film include that heteroaromatic is poly-
Polymer resin, the aromatic heterocyclic polymer resin includes with Am-BnThe polymer chain of expression, wherein A and B is composition polymer
The repetitive unit of chain main chain, and repetitive unit A, B are arranged with random order, m and n are positive integer；
The structural formula of the repetitive unit A are as follows:
The structural formula of the repetitive unit B are as follows:
The aromatic heterocyclic polymer resin the preparation method comprises the following steps: with terephthalic acid (TPA), azobenzene -4,4 '-dioctyl phthalate, sulfuric acid
Hydrazine is reaction raw materials, and polycondensation reaction is carried out in oleum, obtains the aromatic heterocyclic polymer resin.Polymerized monomer is (to benzene
Dioctyl phthalate, azobenzene -4,4 '-dioctyl phthalate), the molar ratio of hydrazine sulfate and oleum be 1:(1.01,2.0,3.0,4.0 or
5.0): (5,8,10,12 or 15), wherein oleum molal quantity is with SO in oleum3Molal quantity meter.
Wherein, polymerized monomer (terephthalic acid (TPA)) and the molar ratio of polymerized monomer (4,4 '-dioctyl phthalate of azobenzene -) are
(0.01,0.25,0.50,0.75 or 0.99): (0.99,0.75,0.50,0.25 or 0.01).
The aromatic heterocyclic polymer resin is modified using inorganic filler.
The inorganic filler is in mica, carbon black, white carbon black, talcum powder, wollastonite, nitride, carbide and oxide
At least one.
The nitride is silicon nitride and/or boron nitride；The carbide is silicon carbide and/or boron carbide；The oxidation
Object is at least one of calcium oxide, zinc oxide, magnesia, iron oxide, silica and titanium dioxide.
The silica is nano silica, and the titanium dioxide is nano-titanium dioxide.
Embodiment 2
A kind of aromatic heterocyclic polymer film of high intensity UV resistant, the aromatic heterocyclic polymer film include that heteroaromatic is poly-
Polymer resin, the aromatic heterocyclic polymer resin includes with Am-BnThe polymer chain of expression, wherein A and B is composition polymer
The repetitive unit of chain main chain, and repetitive unit A, B are arranged with random order, m and n are positive integer；
The structural formula of the repetitive unit A are as follows:
The structural formula of the repetitive unit B are as follows:
The aromatic heterocyclic polymer resin the preparation method comprises the following steps: with phthalic acid, azobenzene -3,3 '-dioctyl phthalate, sulfuric acid
Hydrazine is reaction raw materials, and polycondensation reaction is carried out in oleum, obtains the aromatic heterocyclic polymer resin.Polymerized monomer (adjacent benzene
Dioctyl phthalate, azobenzene -3,3 '-dioctyl phthalate), the molar ratio of hydrazine sulfate and oleum be 1:(1.01,2.0,3.0,4.0 or
5.0): (5,8,10,12 or 15), wherein oleum molal quantity is with SO in oleum3Molal quantity meter.
Wherein, polymerized monomer (phthalic acid) and the molar ratio of polymerized monomer (3,3 '-dioctyl phthalate of azobenzene -) are
(0.01,0.25,0.50,0.75 or 0.99): (0.99,0.75,0.50,0.25 or 0.01).
The aromatic heterocyclic polymer resin is modified using inorganic filler.
The inorganic filler is at least one of sulfate, carbonate, silicate, fluosilicate and phosphate.
The sulfate is at least one of calcium sulfate, magnesium sulfate, zinc sulfate, barium sulfate, ferric sulfate, ferrous sulfate；
The silicate is at least one of sodium metasilicate, alumina silicate and magnesium silicate；The carbonate is calcium carbonate, magnesium carbonate and carbonic acid
At least one of zinc；The fluosilicate is at least one of prodan, potassium fluosilicate and magnesium fluosilicate；The phosphoric acid
Salt is at least one of calcium phosphate, calcium monohydrogen phosphate, magnesium phosphate and magnesium monohydrogen phosphate.
Embodiment 3
A kind of aromatic heterocyclic polymer film of high intensity UV resistant, the aromatic heterocyclic polymer film include that heteroaromatic is poly-
Polymer resin, the aromatic heterocyclic polymer resin includes with Am-BnThe polymer chain of expression, wherein A and B is composition polymer
The repetitive unit of chain main chain, and repetitive unit A, B are arranged with random order, m and n are positive integer；
The structural formula of the repetitive unit A are as follows:
The structural formula of the repetitive unit B are as follows:
The aromatic heterocyclic polymer resin the preparation method comprises the following steps: with terephthalic acid (TPA) and phthalic acid, azobenzene -4,
3,3 '-dioctyl phthalate of 4 '-dioctyl phthalate and azobenzene-, hydrazine sulfate are reaction raw materials, and polycondensation reaction is carried out in oleum, is obtained
The aromatic heterocyclic polymer resin.Polymerized monomer (terephthalic acid (TPA) and phthalic acid, azobenzene -4,4 '-dioctyl phthalate and azo
Benzene -3,3 '-dioctyl phthalate), the molar ratio of hydrazine sulfate and oleum be 1:(1.01,2.0,3.0,4.0 or 5.0): (5,8,10,
12 or 15), wherein oleum molal quantity is with SO in oleum3Molal quantity meter.
Wherein, polymerized monomer (terephthalic acid (TPA) and/or phthalic acid) and polymerized monomer (4,4 '-dioctyl phthalate of azobenzene-
And/or azobenzene -3,3 '-dioctyl phthalate) molar ratio be (0.01,0.25,0.50,0.75 or 0.99): (0.99,0.75,
0.50,0.25 or 0.01).
The molar ratio of terephthalic acid (TPA) and phthalic acid is (0.01,0.25,0.50,0.75 or 0.99): (0.99,
0.75,0.50,0.25 or 0.01), the molar ratio of 3,3 '-dioctyl phthalate of 4,4 '-dioctyl phthalate of azobenzene-and azobenzene-be (0.01,
0.25,0.50,0.75 or 0.99): (0.99,0.75,0.50,0.25 or 0.01).
The aromatic heterocyclic polymer resin is modified using modifying agent, and the modifying agent is glass microballoon, whisker, carbon fiber
At least one of the short fine, silicone of dimension, glass fibre, Fanglun slurry cake, aramid fiber and polytetrafluoroethylene (PTFE).
Embodiment 4
It is a kind of high intensity UV resistant aromatic heterocyclic polymer film preparation method, the aromatic heterocyclic polymer film by
Aromatic heterocyclic polymer resin stretches film-forming process through acid bath wet process and is made.
Embodiment 5
A kind of application of the aromatic heterocyclic polymer film of high intensity UV resistant, the aromatic heterocyclic polymer film are applied to
High temperature gummed tape, FPC substrate, COF substrate, FCCL substrate, carbonization film base material, graphitization heat dissipation film base material, high temperature dwell cuticula, LED
Lamp bar, OLED Flexible Displays substrate, conductive film base material, high-temperature insulation film or hand-set lid.
After tested, aromatic heterocyclic polymer film transverse tensile strength produced by the present invention can achieve 91.3-95.2MPa,
Longitudinal tensile strength can achieve 148.7-156.8MPa, and ultraviolet light and aging test can achieve 1730-1920h, have higher
Intensity and excellent UV resistant performance.
Above-described embodiment is the preferable implementation of the present invention, and in addition to this, the present invention can be realized with other way,
Do not depart under the premise of present inventive concept it is any obviously replace it is within the scope of the present invention.
Claims (10)
1. a kind of aromatic heterocyclic polymer film of high intensity UV resistant, the aromatic heterocyclic polymer film include heteroaromatic polymerization
Resin, it is characterised in that: the aromatic heterocyclic polymer resin includes with Am-BnThe polymer chain of expression, wherein A and B are
The repetitive unit of polymer chain backbone is constituted, and repetitive unit A, B are arranged with random order, m and n are positive integer；
The structural formula of the repetitive unit A are as follows:And/orIt is described
The structural formula of repetitive unit B are as follows:And/or
2. a kind of aromatic heterocyclic polymer film of high-intensitive UV resistant according to claim 1, it is characterised in that: described
Aromatic heterocyclic polymer resin the preparation method comprises the following steps: with terephthalic acid (TPA) and/or phthalic acid, azobenzene -4,4 '-dioctyl phthalate
And/or 3,3 '-dioctyl phthalate of azobenzene-, hydrazine sulfate are reaction raw materials, and polycondensation reaction is carried out in oleum, obtains the virtue
Heterocycle polymer resin.
3. a kind of aromatic heterocyclic polymer film of high-intensitive UV resistant according to claim 1, it is characterised in that: described
Aromatic heterocyclic polymer resin is modified using inorganic filler.
4. a kind of aromatic heterocyclic polymer film of high-intensitive UV resistant according to claim 3, it is characterised in that: described
Inorganic filler be mica, carbon black, white carbon black, talcum powder, wollastonite, nitride, carbide, oxide, sulfate, carbonate,
At least one of silicate, fluosilicate and phosphate.
5. a kind of aromatic heterocyclic polymer film of high-intensitive UV resistant according to claim 4, it is characterised in that: described
Nitride is silicon nitride and/or boron nitride；The carbide is silicon carbide and/or boron carbide；The oxide is calcium oxide, oxygen
Change at least one of zinc, magnesia, iron oxide, silica and titanium dioxide.
6. a kind of aromatic heterocyclic polymer film of high-intensitive UV resistant according to claim 5, it is characterised in that: described
Silica is nano silica, and the titanium dioxide is nano-titanium dioxide.
7. a kind of aromatic heterocyclic polymer film of high-intensitive UV resistant according to claim 4, it is characterised in that: described
Sulfate is at least one of calcium sulfate, magnesium sulfate, zinc sulfate, barium sulfate, ferric sulfate, ferrous sulfate；The silicate is
At least one of sodium metasilicate, alumina silicate and magnesium silicate；The carbonate is at least one in calcium carbonate, magnesium carbonate and zinc carbonate
Kind；The fluosilicate is at least one of prodan, potassium fluosilicate and magnesium fluosilicate；The phosphate be calcium phosphate,
At least one of calcium monohydrogen phosphate, magnesium phosphate and magnesium monohydrogen phosphate.
8. a kind of aromatic heterocyclic polymer film of high-intensitive UV resistant according to claim 1, it is characterised in that: described
Aromatic heterocyclic polymer resin is modified using modifying agent, the modifying agent be glass microballoon, whisker, carbon fiber, glass fibre,
At least one of the short fine, silicone of Fanglun slurry cake, aramid fiber and polytetrafluoroethylene (PTFE).
9. such as a kind of described in any item preparation sides of the aromatic heterocyclic polymer film of high-intensitive UV resistant claim 1-8
Method, it is characterised in that: the aromatic heterocyclic polymer film stretches film-forming process system through acid bath wet process by aromatic heterocyclic polymer resin
?.
10. such as a kind of described in any item applications of the aromatic heterocyclic polymer film of high-intensitive UV resistant of claim 1-8,
Be characterized in that: the aromatic heterocyclic polymer film is applied to high temperature gummed tape, FPC substrate, COF substrate, FCCL substrate, carbonized film base
Material, graphitization heat dissipation film base material, high temperature dwell cuticula, LED light bar, OLED Flexible Displays substrate, conductive film base material, high-temperature insulation film
Or hand-set lid.
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Cited By (1)
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| CN117645296A (en) * | 2024-01-30 | 2024-03-05 | 四川大学 | High-heat-conductivity aromatic heterocyclic polymer-based graphite film and preparation method thereof |
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| CN117645296B (en) * | 2024-01-30 | 2024-04-12 | 四川大学 | High-heat-conductivity aromatic heterocyclic polymer-based graphite film and preparation method thereof |
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