A graphene composite material cable and production method

Abstract

The present invention provides a graphene composite cable, which comprises a conductor layer, an insulating layer, an outer coating layer and a protective layer from the inside to the outside, wherein the protective layer material is a graphene composite material, and the raw materials of the graphene composite material, by weight percentage, include: 4%-6% graphite, 2%-3% sodium nitrate, 12%-18% potassium permanganate, 12%-13% concentrated sulfuric acid, 34%-38% deionized water, 10%-11% hydrogen peroxide, 6%-7% hydrazine hydrate, 5%-6% copper sulfate, 5%-6% aluminum block, and 2%-4% fireproof material. The present invention uses graphene composite materials to replace metal braided shielding materials and aluminum foil materials, has a simple process and reduces production costs, and has significant economic benefits.

Description

Technical Field

[0001] The present technical invention relates to the field of cables, and specifically to a graphene composite material cable and a production method. Background Art

[0002] With the gradual acceleration of urbanization, urban planning is becoming more and more modern. In the process of urban construction, laying cables underground has become the minimum construction requirement. At the same time, in the process of urban transformation, it is also necessary to lay various cables erected in the air underground. The requirements for cables are: the cables need to have the characteristics of high strength, good rigidity and toughness, etc. In addition, due to the characteristics of the cables themselves, they also need to have shielding characteristics to achieve the purpose of shielding electromagnetic interference.

[0003] Currently, it is common to add a metal braided layer formed by aluminum foil and copper wire braided mesh between the insulation and outer layer of the cable to meet the requirements of shielding electromagnetic interference of the cable. However, the metal braided layer has technical problems such as low quality, uneven pitch, complex weaving process and high cost.

[0004] Therefore, there is an urgent need to seek a graphene composite material cable and a production method to solve the technical problems of complex process and high cost of the metal braided layer. Summary of the invention

[0005] In view of the problems of complex process and high cost in the prior art, the present invention provides a graphene composite material cable and a production method thereof.

[0006] The technical solution proposed by the present invention for the above technical problem is as follows: a graphene composite material cable, which includes a conductor layer, an insulating layer, an outer layer and a protective layer from the inside to the outside, wherein the protective layer material is a graphene composite material, and the raw materials of the graphene composite material, by weight percentage, include: 4%-6% graphite, 2%-3% sodium nitrate, 12%-18% potassium permanganate, 12%-13% concentrated sulfuric acid, 34%-38% deionized water, 10%-11% hydrogen peroxide, 6%-7% hydrazine tetrahydrate, 5%-6% copper sulfate, 5%-6% aluminum block, and 2%-4% fireproof material.

[0007] In the above-mentioned graphene composite material cable of the present invention, the particle size of the graphite is 43um and the purity is 99.0%; the purity of the sodium nitrate is 99.0%; the purity of the concentrated sulfuric acid is 95.0%, the purity of the potassium permanganate is 99.5%; the purity of the hydrogen peroxide is 5.0%; the purity of the hydrazine tetrahydrate is 80%, the purity of the copper sulfate is 80%, and the purity of the aluminum block is 99.99%.

[0008] In the above-mentioned graphene composite material cable of the present invention, the raw materials of the fireproof material include, by weight percentage: 59%-65% aluminum silicate, 4%-6% aluminum tripolyphosphate, 11%-12% polyaluminosiloxane, 7%-9% magnesium hydroxide, 4%-5% water glass, 3%-4% glass fiber, 2%-3% corundum, 1%-2% talc, and 0.7%-1% melamine.

[0009] In the above-mentioned graphene composite material cable of the present invention, the conductor layer is a plurality of aluminum or aluminum alloy single wires of different colors.

[0010] In the above-mentioned graphene composite material cable of the present invention, the thickness of the graphene composite material layer is 0.37mm-0.33mm.

[0011] In the above-mentioned graphene composite material cable of the present invention, the protective layer has a microscopic mesh structure.

[0012] In the above-mentioned graphene composite material cable of the present invention, the content of graphene in the graphene composite material layer is 1%-3%.

[0013] The present invention also provides a production method of a graphene composite material, which is applicable to the graphene composite material, comprising the following steps: step S1, adding graphite and sodium nitrate to concentrated sulfuric acid at 0°C, and adding potassium permanganate at temperatures of 10°C and 30°C respectively to catalyze a low-temperature reaction and a medium-temperature reaction, and generating a medium-temperature reaction product; step S2, adding deionized water to the medium-temperature reaction product, controlling the reaction temperature to 95°C, performing a high-temperature reaction, and reacting for 30 minutes to generate a high-temperature reaction product; step S3, adding hydrogen peroxide to the high-temperature reaction product to dissolve the high-temperature reaction product, and continuously stirring with a glass rod until the high-temperature reaction product is golden yellow; step S4, washing and filtering the golden-yellow high-temperature reaction product with deionized water at 10,000 rpm to generate a high-temperature reaction product. The first filtered product is formed, and the first filtered product is subjected to ultrasonic treatment for 2 hours to form a graphene oxide colloid; step S5, heating the graphene oxide colloid in a water bath at 98°C, adding hydrazine tetrahydrate and copper sulfate, and stirring continuously, reacting for 2 hours, washing and filtering, and generating a second filtered product; step S6, washing and drying the second filtered product for 24 hours to generate an intermediate product; step S7, heating the aluminum block to 720°C to melt and generate a melt; step S8, preparing a fireproof material; step S9, adding the fireproof material and the intermediate product to the melt, and stirring with a precision power-enhancing electric stirrer; step S10, when the melt temperature drops to 660°C, stopping stirring until the melt cools to a temperature of 100°C, and generating the graphene composite material.

[0014] In the above-mentioned method for producing a graphene composite material layer of the present invention, the second filtration product is graphene, and the intermediate product is copper-based graphene.

[0015] In the above-mentioned method for producing a graphene composite material layer of the present invention, the ultrasonic treatment in step S4 has an ultrasonic power of 300W.

[0016] In the production method of the above-mentioned graphene composite material layer of the present invention, step S8 includes: S81, mixing the above-mentioned weight percentages of aluminum silicate, aluminum tripolyphosphate, polyaluminosiloxane, magnesium hydroxide, water glass, glass fiber, corundum, talcum powder, and melamine evenly to generate a mixture; S82, adding the mixture to a twin-screw extruder, melting and extruding it in the twin-screw extruder; S83, drying and pelletizing the extruded melt to generate the fireproof material.

[0017] The beneficial effects of the technical solution provided by the present invention are as follows: in view of the technical problems of complex process and high cost in the prior art, the present invention provides a graphene composite material cable and a production method thereof, and prepares a graphene composite material layer to replace the metal braided layer in the prior art, thereby avoiding the technical problems of complex braiding process and high cost in the metal braided layer, and the prepared graphene material composite layer has high strength and high flexibility, meeting the requirements for cable use, and further, fireproof material is added to the graphene material composite layer to achieve a fireproof function. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a graphene composite material cable structure provided by an embodiment of the present invention;

[0019] Figure 2 It is a schematic diagram of the microstructure of a graphene material composite layer of a graphene composite cable provided in Example 1 of the present invention;

[0020] Figure 3 It is another microscopic structure schematic diagram of a graphene material composite layer of a graphene composite material cable provided in Example 1 of the present invention;

[0021] Figure 4 This is a flow chart of a method for producing a graphene material composite layer of a graphene composite cable provided in Embodiment 4 of the present invention;

[0022] Figure 5 is a flow chart of step S8 provided in the fourth embodiment of the present invention;

[0023] Figure 6 The fifth embodiment of the present invention provides a schematic diagram of a graphene composite material cable structure;

[0024] Figure 7 The fifth embodiment of the present invention provides a schematic diagram of the structure of a graphene composite cable conductor layer; DETAILED DESCRIPTION

[0025] In order to solve the technical problems of complex process and high cost in the prior art, the present invention aims to provide a graphene composite material cable and a production method thereof. The core idea is to prepare a graphene composite material layer to replace the metal braided layer in the prior art, thereby avoiding the technical problems of complex weaving process and high cost of the metal braided layer. The prepared graphene material composite layer has high strength and high flexibility, meeting the requirements for cable use. Furthermore, fireproof material is added to the graphene material composite layer to achieve fireproof function.

[0026] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] The present invention provides a graphene composite material cable, such as Figure 1 As shown, the cable includes a conductor layer 1, an insulating layer 2, an outer coating 3 and a protective layer 4 from the inside to the outside. The insulating layer 2, the outer coating 3 and the protective layer 4 are concentric ring-shaped, and the outer surface of the insulating layer 2 is close to the inner surface of the outer coating 3, and the outer surface of the outer skin layer 3 is close to the inner surface of the protective layer 4. In one of the preferred embodiments of the present invention, the conductor layer 1 is provided with 4 aluminum single wires of different colors for transmitting power, and the aluminum single wire is tangent to the inner surface of the insulating layer 2. It should be noted that a reinforcing core can be filled between the 4 aluminum single wires of the conductor layer 1 to improve the stability of the cable. The reinforcing core can be a steel core, an aluminum-clad steel core, or various fiber-reinforced aluminum-based, resin-based, ceramic-based and other composite materials. Among them, the conductor layer 1, the insulating layer 2, and the outer coating 3 are all prior art and will not be repeated here. The material of the protective layer 4 is a graphene composite material.

[0028] Embodiment 1

[0029] In one embodiment of the present invention, the raw materials of the graphene composite material include, by weight percentage: 6% graphite, 3% sodium nitrate, 18% potassium permanganate, 12% concentrated sulfuric acid, 34% deionized water, 10% hydrogen peroxide, 5% hydrazine tetrahydrate, 5% copper sulfate, 5% aluminum block, and 2% fireproof material. The present invention can obtain a composite material with high flexibility and good strength under the reinforcement of graphene through the aluminum block, which meets the requirements for cable use.

[0030] The above raw materials are all purchased on the market, among which the chemical formula of sodium nitrate is NaNO3, the chemical formula of potassium permanganate is KMnO4, the chemical formula of concentrated sulfuric acid is H2SO4, the chemical formula of hydrogen peroxide is H2O2, the chemical formula of hydrated hydrazine is N2H4·H2O, and the chemical formula of copper sulfate is CuSO4. The graphene composite material prepared by the present invention has high quality and thin carbon layer, and a large-sized continuously distributed mesh graphene composite material can be obtained.

[0031] It should be noted that the particle size of graphite is 43um and the purity is 99.0%; the purity of sodium nitrate is 99.0%; the purity of concentrated sulfuric acid is 95.0%, the purity of potassium permanganate is 99.5%; the purity of hydrogen peroxide is 5.0%; the purity of hydrazine hydrate is 80%, the purity of copper sulfate is 80%, and the purity of aluminum block is 99.99%.

[0032] Furthermore, in order to meet the fireproof performance of the protective layer, fireproof materials are added to the raw materials of the graphene composite material, and the raw materials of the fireproof materials include by weight percentage: 59% aluminum silicate, 6% aluminum tripolyphosphate, 11% polyaluminosiloxane, 9% magnesium hydroxide, 5% water glass, 4% glass fiber, 3% corundum, 2% talcum powder, and 1% melamine. The fireproof material has the characteristics of high temperature resistance and crack resistance.

[0033] Furthermore, the graphene composite material is roll-formed to form a protective layer, wherein the thickness of the protective layer is 0.33 mm-0.37 mm. It should be noted that if the protective layer does not contain a fireproof material, the thickness of the protective layer is 0.19 mm-0.21 mm.

[0034] Furthermore, the conductor layer 1 is aluminum or aluminum alloy single wires of different colors. In one embodiment of the present invention, 4 aluminum single wires of different colors are arranged in the conductor layer for transmitting electricity, and it is convenient for operators to distinguish the meanings represented by different colors.

[0035] Furthermore, combined with Figure 2 It can be seen that the microstructure of graphene composite materials is a mesh structure. The mesh structure is stable, with high tensile strength and compressive strength, which can meet the needs of cables.

[0036] Further, by Figure 3 It can be seen that the formed graphene and aluminum penetrate each other, and the graphene is evenly distributed around the aluminum, which enhances the performance of the aluminum, thereby achieving the technical effect of the optimal comprehensive mechanical properties of the graphene material composite layer. This is because the thermal expansion coefficients of graphene and aluminum are quite different, and lattice mismatch occurs at the interface. The raw material formula of the present invention can produce accumulation at the distribution position of graphene, effectively improving the mechanical strength of the composite material.

[0037] Embodiment 2

[0038] In one embodiment of the present invention, the raw materials of the graphene composite material include, by weight percentage: 6% graphite, 3% sodium nitrate, 18% potassium permanganate, 12% concentrated sulfuric acid, 34% deionized water, 10% hydrogen peroxide, 5% hydrazine tetrahydrate, 5% copper sulfate, 5% aluminum block, and 2% fireproof material. The present invention can obtain a composite material with high flexibility and good strength under the reinforcement of graphene through such aluminum block, which meets the requirements for cable use. The raw materials of the fireproof material include, by weight percentage: 65% aluminum silicate, 4% aluminum tripolyphosphate, 12% polyaluminosiloxane, 7% magnesium hydroxide, 4% water glass, 3% glass fiber, 2% corundum, 2% talcum powder, and 1% melamine.

[0039] Embodiment 3

[0040] In one embodiment of the present invention, the raw materials of the graphene composite material include, by weight percentage: 5% graphite, 2% sodium nitrate, 15% potassium permanganate, 12% concentrated sulfuric acid, 35% deionized water, 10% hydrogen peroxide, 6% hydrated hydrazine, 6% copper sulfate, 6% aluminum block, and 3% fireproof material. The present invention can obtain a composite material with high flexibility and good strength under the reinforcement of graphene through such aluminum block, which meets the requirements for cable use. The raw materials of the fireproof material include, by weight percentage: 65% aluminum silicate, 4% aluminum tripolyphosphate, 12% polyaluminosiloxane, 7% magnesium hydroxide, 4% water glass, 3% glass fiber, 2% corundum, 2% talcum powder, and 1% melamine.

[0041] Embodiment 4

[0042] The present invention also provides a method for producing a graphene composite material, which is applicable to the graphene composite material in the above-mentioned embodiment 1, such as Figure 4 As shown, the following steps are included:

[0043] Step S1, adding 300g of graphite and 150g of sodium nitrate to 600g of concentrated sulfuric acid at 0°C with a concentration of 95%, and adding 900g of potassium permanganate at temperatures of 10°C and 30°C respectively to catalyze a low-temperature reaction and a medium-temperature reaction, and generating a medium-temperature reaction product;

[0044] Step S2, adding 500 g of deionized water to the medium-temperature reaction product, controlling the reaction temperature to 95° C., performing a high-temperature reaction, and reacting for 30 minutes to generate a high-temperature reaction product;

[0045] Step S3, adding 500 g of hydrogen peroxide to the high temperature reaction product to dissolve the high temperature reaction product, and stirring continuously with a glass rod until the high temperature reaction product turns golden yellow;

[0046] Step S4, washing and filtering the golden high-temperature reaction product with 1200 g of deionized water at 10000 rpm to generate a first filtered product, and subjecting the first filtered product to ultrasonic treatment for 2 hours to form graphene oxide colloid;

[0047] Step S5, heating the graphene oxide colloid in a water bath at 98° C., adding 250 g of hydrated hydrazine and 250 g of copper sulfate, and stirring continuously, reacting for 2 hours, washing and filtering, and generating a second filtration product;

[0048] Step S6, washing and drying the second filtered product for 24 hours to generate an intermediate product;

[0049] Step S7, heating 250 g of aluminum block to 720° C. to melt and generate a melt;

[0050] Step S8, preparing 100 g of fireproof material;

[0051] Step S9, adding 100 g of fireproof material and intermediate product into the melt, and stirring with a precision power-amplifying electric stirrer;

[0052] Step S10: When the melt temperature drops to 660° C., stirring is stopped until the melt cools to a temperature of 30° C., thereby generating the graphene composite material.

[0053] It should be noted that the second filtration product is graphene, and the intermediate product is copper-based graphene. In the ultrasonic treatment in step S4, the ultrasonic power is 300 W. The content of graphene in the graphene composite material of the present invention is 1%-3%.

[0054] Furthermore, if Figure 5 As shown, step S8 in the present invention includes:

[0055] S81, 29.5 g of aluminum silicate, 3 g of aluminum tripolyphosphate, 5.5 g of polyaluminosiloxane, 4.5 g of magnesium hydroxide, 2.5 g of water glass, 2 g of glass fiber, 1.5 g of corundum, 1 g of talc, and 0.5 g of melamine were mixed to form a fireproof mixture;

[0056] S82, adding the fire retardant mixture into a twin-screw extruder, melting and extruding the mixture in the twin-screw extruder;

[0057] S83, drying and pelletizing the extruded melt to generate the fireproof material.

[0058] The performance of the graphene composite material prepared in this embodiment is tested. The density of the graphene composite material is increased, and the wettability between graphene and aluminum melt is improved. And its hardness is increased by about 40% relative to the pure aluminum matrix. After the graphene composite material is generated, a ring-shaped protective layer 4 is formed by roll forming, which is wrapped around the outer layer 3 of the cable to form a cable for transmitting electricity.

[0059] Embodiment 5

[0060] One embodiment of the present invention provides a graphene composite material cable, such as Figure 6 As shown, the cable includes a conductor layer 1, an insulating layer 2, an outer layer 3 and a protective layer 4 from the inside to the outside, wherein the insulating layer 2, the outer layer 3 and the protective layer 4 are coaxial rings, and the outer surface of the insulating layer 2 is close to the inner surface of the outer layer 3, and the outer surface of the outer layer 3 is close to the inner surface of the protective layer 4.

[0061] Furthermore, the conductor layer 1 includes a plurality of wires 11 of different colors and a filler 12 for isolating the wires, the wire 1 is a single wire of aluminum or aluminum alloy, wherein the outer surface of the wire 1 is tangent to the inner surface of the insulating layer 2. In one preferred embodiment of the present invention, the conductor layer 1 is provided with aluminum single wires of 4 different colors for transmitting power.

[0062] Furthermore, if Figure 7 As shown, the filler 12 includes a central body 121 and a plurality of spacers 122 spaced around the central body 121. One end of the spacer 122 is connected to the central body 121, and the other end is connected to the insulating layer 2. The spacer 122 forms a plurality of partition cavities 123, and the wires 11 are respectively placed in the corresponding partition cavities 123. The damage caused by the friction between the wires 11 is greatly reduced, and the problem of difficulty in removing the wires 11 caused by the mutual misalignment between the wires 11 is solved. Among them, the central body can be various shapes such as round and square.

[0063] Furthermore, the separator 122 spirally extends in the length direction of the cable with the central body 121 as the spiral center, so that the overall stress distribution of the cable is more uniform. In one embodiment of the present invention, there are four separators 122, and the four separators 122 divide the cavity into four separation chambers 123, which correspond to the four wires 11 one by one. And the width of the separation chamber 123 is substantially the same as the diameter of the wire 11.

[0064] Further, it should be noted that the filler 12 is one of a steel alloy part, an aluminum-based composite part, a resin-based composite part, and a ceramic-based composite part; the insulating layer 2 is a cross-linked polyethylene part with a circular ring-shaped cross section and a thickness of 0.71mm-0.82mm; the outer layer 3 is a semi-conductive polyethylene part with a circular ring-shaped cross section and a thickness of 0.42mm-0.50mm; the protective layer 4 is a polyvinyl chloride part with a circular ring-shaped cross section and a thickness of 0.33mm-0.37mm.

[0065] In summary, the present invention proposes a graphene composite material cable and a production method thereof. By preparing a graphene composite material layer to replace the metal braided layer in the prior art, the technical problems of complex weaving process and high cost of the metal braided layer are avoided. The prepared graphene material composite layer has high strength and high flexibility, which meets the requirements for cable use. Furthermore, fire-proof material is added to the graphene material composite layer to achieve a fire-proof function.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A graphene composite material cable, comprising, from inside to outside, a conductor layer, an insulating layer, an outer coating layer and a protective layer, characterized in that: The protective layer material is a graphene composite material, and the raw materials of the graphene composite material, by weight percentage, include: 4%-6% graphite, 2%-3% sodium nitrate, 12%-18% potassium permanganate, 12%-13% concentrated sulfuric acid, 34%-38% deionized water, 10%-11% hydrogen peroxide, 6%-7% hydrated hydrazine, 5%-6% copper sulfate, 5%-6% aluminum block, and 2%-4% fireproof material; The conductor layer includes a plurality of wires and a filler for isolating the wires. The filler includes a central body and a plurality of spacers distributed around the central body. One end of the spacer is connected to the central body and the other end is connected to the insulating layer. The spacer forms a plurality of separation chambers. The wires are placed in the corresponding separation chambers respectively. The spacer takes the central body as the spiral center and spirally extends in the length direction of the cable, so that the overall stress distribution of the cable is more uniform. The raw materials of the fireproof material include, by weight percentage: 59%-65% aluminum silicate, 4%-6% aluminum tripolyphosphate, 11%-12% polyaluminosiloxane, 7%-9% magnesium hydroxide, 4%-5% water glass, 3%-4% glass fiber, 2%-3% corundum, 1%-2% talc, and 1% melamine; The production process of the graphene composite material is as follows: adding graphite and sodium nitrate to concentrated sulfuric acid at 0°C, adding potassium permanganate at 10°C and 30°C to catalyze a low-temperature reaction and a medium-temperature reaction, and generating a medium-temperature reaction product; adding deionized water to the medium-temperature reaction product, controlling the reaction temperature to 95°C, performing a high-temperature reaction, and reacting for 30 minutes to generate a high-temperature reaction product; adding hydrogen peroxide to the high-temperature reaction product to dissolve the high-temperature reaction product, and stirring continuously with a glass rod until the high-temperature reaction product is golden yellow; washing and filtering the golden yellow high-temperature reaction product with deionized water at 10,000 rpm to generate the first reaction product. The product is filtered, and the first filtered product is subjected to ultrasonic treatment for 2 hours to form a graphene oxide colloid; the graphene oxide colloid is heated in a water bath at 98° C., hydrated hydrazine and copper sulfate are added, and the mixture is continuously stirred. After reacting for 2 hours, the mixture is washed and filtered to generate a second filtered product; the second filtered product is washed and dried for 24 hours to generate an intermediate product; the aluminum block is heated to 720° C. to melt the block to generate a melt; a fireproof material is prepared; the fireproof material and the intermediate product are added to the melt, and the melt is stirred by a precision power-enhancing electric stirrer; when the melt temperature drops to 660° C., the stirring is stopped until the melt is cooled to room temperature to generate the graphene composite material.

2. The graphene composite material cable according to claim 1, characterized in that: The particle size of the graphite is 43um and the purity is 99.0%; the purity of the sodium nitrate is 99.0%; the purity of the concentrated sulfuric acid is 95.0%, the purity of the potassium permanganate is 99.5%; the purity of the hydrogen peroxide is 5.0%; the purity of the hydrated hydrazine is 80%, the purity of the copper sulfate is 80%, and the purity of the aluminum block is 99.99%.

3. The graphene composite material cable according to claim 2, characterized in that: The graphene composite material is roll-formed to generate a protective layer, and the thickness of the protective layer is 0.33 mm-0.37 mm.

4. The graphene composite material cable according to claim 3, characterized in that: The conductor layer is a plurality of aluminum or aluminum alloy single wires of different colors.

5. The graphene composite material cable according to claim 4, characterized in that: The protective layer has a microscopic reticular structure.

6. A method for producing a graphene composite material, applicable to the graphene composite material as claimed in claim 1, characterized in that: The steps include: Step S1, adding graphite and sodium nitrate to concentrated sulfuric acid at 0°C, and adding potassium permanganate at 10°C and 30°C to catalyze a low-temperature reaction and a medium-temperature reaction, and generating a medium-temperature reaction product; Step S2, adding deionized water to the medium-temperature reaction product, controlling the reaction temperature to 95° C., performing a high-temperature reaction, and reacting for 30 minutes to generate a high-temperature reaction product; Step S3, adding hydrogen peroxide to the high temperature reaction product to dissolve the high temperature reaction product, and stirring continuously with a glass rod until the high temperature reaction product turns golden yellow; Step S4, washing and filtering the golden high-temperature reaction product with deionized water at 10,000 rpm to generate a first filtered product, and subjecting the first filtered product to ultrasonic treatment for 2 hours to form graphene oxide colloid; Step S5, heating the graphene oxide colloid in a water bath at 98° C., adding hydrated hydrazine and copper sulfate, and stirring continuously, reacting for 2 hours, washing and filtering, and generating a second filtration product; Step S6, washing and drying the second filtered product for 24 hours to generate an intermediate product; Step S7, heating the aluminum block to 720° C. to melt and generate a melt; Step S8, preparing fireproof material; Step S9, adding fireproof material and intermediate product into the melt, and stirring with a precision power-amplifying electric stirrer; Step S10: When the melt temperature drops to 660° C., stirring is stopped until the melt cools to room temperature to generate the graphene composite material.

7. The method for producing a graphene composite material according to claim 6, characterized in that: The second filtration product is graphene, and the intermediate product is copper-based graphene.

8. The method for producing a graphene composite material according to claim 7, characterized in that: In the ultrasonic treatment in step S4, the power of the ultrasound is 300W.

9. The method for producing a graphene composite material according to claim 8, characterized in that: Step S8 includes: S81, mixing the above-mentioned weight percentages of aluminum silicate, aluminum tripolyphosphate, polyaluminosiloxane, magnesium hydroxide, water glass, glass fiber, corundum, talc, and melamine uniformly to form a fireproof mixture; S82, adding the fire retardant mixture into a twin-screw extruder, melting and extruding the mixture in the twin-screw extruder; S83, drying and pelletizing the extruded melt to generate the fireproof material.

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