Efficient and energy-saving graphene far-infrared conductive paste and preparation method thereof

Abstract

The invention relates to the technical field of conductive paste preparation, and discloses efficient and energy-saving graphene far-infrared conductive paste and a preparation method thereof. According to the formula, the conductive graphene composite material is prepared from the following raw materials in parts by weight: 10.0 to 20.0 parts of graphene powder, 2.0 to 3.6 parts of polyvinyl alcohol, 1.2 to 2.5 parts of conductive polymer, 2.5 to 5.0 parts of titanium oxide, 5.0 to 18.0 parts of ethanol, 0.5 to 2.0 parts of dispersing agent, 0.5 to 1.0 part of thickening agent, 0.5 to 1.0 part of sodium fluoride, 0.75 to 3.6 parts of ammonia water, 0.5 to 2.0 parts of silica gel, 0.25 to 1.0 part of polytetrafluoroethylene, 0.75 to 2.0 parts of carbon nano tube and 0.5 to 2.5 parts of aluminum oxide. 0.5 to 2.0 parts of polyacrylonitrile and 0.25 to 1.0 part of sulfide. According to the graphene far-infrared conductive paste, the excellent conductivity of graphene is combined with the far-infrared composite paste, so that heat generated when current passes through is more uniform and efficient, energy waste is reduced, power consumption is reduced, energy is saved, and the use cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of conductive paste preparation, and in particular to a highly efficient and energy-saving graphene far-infrared conductive paste and a preparation method thereof. Background Art

[0002] Graphene is a brand new material. It is not only thin, but also has high strength, low resistivity, good thermal conductivity and electrical conductivity. Graphene is almost completely transparent and soft, but its atoms are so tightly arranged that even helium with the smallest molecular structure cannot penetrate it. It is now known as the most subversive material in the 21st century. In recent years, graphene and its derivatives have been widely used in biomedicine, optics and other fields. Studies have found that graphene can absorb and radiate up to 40% of far-infrared rays. Graphene is the thinnest and hardest nanomaterial known in the world. It is almost completely transparent and only absorbs 2.3% of light; its thermal conductivity is as high as 5300W / m·2K, higher than carbon nanotubes and diamonds, and its electron mobility at room temperature exceeds 15000cm / V·s, which is higher than nanocarbon tubes or silicon crystals, and its resistivity is only about 1Ω·m, which is lower than copper or silver, making it the material with the lowest resistivity in the world.

[0003] Due to the above special properties, graphene has become the best conductive material in the world. Existing research on graphene is mainly focused on applications in new energy batteries, solar panels and other fields. Electric heating products made by adding far-infrared composite slurry to conductive slurry have become a new research field because of their features of no attenuation of conductor power, rapid heating without cooling, no electromagnetic wave radiation, improving human microcirculation, and enhancing human immunity.

[0004] To this end, we propose a highly efficient and energy-saving graphene far-infrared conductive slurry and a preparation method thereof. Summary of the invention

[0005] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a high-efficiency and energy-saving graphene far-infrared conductive slurry and a preparation method thereof.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme, a high-efficiency and energy-saving graphene far-infrared conductive slurry, the raw materials of which are formulated by weight as follows: 10.0-20.0 parts of graphene powder, 2.0-3.6 parts of polyvinyl alcohol, 1.2-2.5 parts of conductive polymer, 2.5-5.0 parts of titanium oxide, 5.0-18.0 parts of ethanol, 0.5-2.0 parts of dispersant, 0.5-1.0 parts of thickener, 0.5-1.0 parts of sodium fluoride, 0.75-3.6 parts of ammonia water, 0.5-2.0 parts of silica gel, 0.25-1.0 parts of polytetrafluoroethylene, 0.75-2.0 parts of carbon nanotubes, 0.5-2.5 parts of aluminum oxide, 0.5-2.0 parts of polyacrylonitrile, and 0.25-1.0 parts of sulfide.

[0007] Preferably, the dispersant includes one or a mixture of polyvinyl pyrrolidone, polyvinylidene fluoride, polyvinyl acetal resin, cellulose ether and derivatives thereof.

[0008] Preferably, the thickener is bentonite or a silane coupling agent or a mixture of the two.

[0009] A method for preparing an efficient and energy-saving graphene far-infrared conductive slurry comprises the following steps:

[0010] S1: 10.0 parts to 20.0 parts of graphene powder and 0.5 parts to 2.0 parts of dispersant are stirred and dispersed in a stirring disperser;

[0011] S2: adding graphene dispersion, 2.5-5.0 parts of titanium oxide, 2.0-3.6 parts of polyvinyl alcohol, 1.2-2.5 parts of conductive polymer, 0.75-2.0 parts of carbon nanotubes, 0.5-2.0 parts of silica gel, 0.5-1.0 parts of sodium fluoride, 0.25-1.0 parts of sulfide and 5.0-18.0 parts of ethanol into a grinder, and regularly checking the fineness of the slurry;

[0012] S3: The fineness of the slurry is detected by an electronic scraper fineness meter until the fineness reaches the nanometer level (less than 100 nanometers). If necessary, continue grinding until the required fineness is reached;

[0013] S4: After grinding, pour the slurry into a clean container, let it stand and degas to remove bubbles and impurities, add 0.5 to 1.0 parts of thickener, mix and stir, and let it stand for 1 hour to 1.5 hours;

[0014] S5: Carry out final physical and chemical property testing, including conductivity, far-infrared radiation performance and uniformity, to ensure that the performance of the slurry meets the requirements.

[0015] Preferably, the dispersion time in S1 is 5 hours, and the rotation speed is 2000 rpm-2500 rpm.

[0016] Preferably, the grinding machine in S2 has a rotation speed of 1500 rpm to 2000 rpm, and the grinding time is 6 hours.

[0017] The present invention provides a highly efficient and energy-saving graphene far-infrared conductive slurry and a preparation method thereof, which has the following beneficial effects:

[0018] 1. A highly efficient and energy-saving graphene far-infrared conductive slurry and a preparation method thereof. This highly efficient and energy-saving graphene far-infrared conductive slurry greatly improves the energy efficiency of electric heating products by combining the excellent conductivity of graphene with a far-infrared composite slurry, thereby reducing energy waste and reducing electricity consumption, which not only saves energy but also reduces the cost of use.

[0019] 2. This is an energy-efficient graphene far-infrared conductive slurry and its preparation method. The high conductivity of the slurry enables electric heating products to heat up quickly and provide instant heat output. The conductive properties of graphene enable the current to be quickly transmitted and converted into heat energy, avoiding the trouble of traditional electric heating equipment requiring long preheating time, and improving the convenience and comfort of use.

[0020] 3. This is an efficient and energy-saving graphene far-infrared conductive slurry and its preparation method. The stability of the graphene material ensures that the conductor power does not decay during use, thereby maintaining a constant heating effect. The chemical stability and excellent thermal conductivity of graphene prevent the conductivity from decreasing during long-term use, which ensures that the equipment can output heat stably and extends the service life of the product.

[0021] 4. This highly efficient and energy-saving graphene far-infrared conductive slurry and its preparation method avoid the potential impact of electromagnetic waves on the human body and ensure safe use. Due to the special properties of graphene, it can effectively reduce the generation of electromagnetic waves and convert them into far-infrared radiation, reducing the electromagnetic radiation problems that may be caused by traditional electric heating equipment and ensuring the safety and health of users during use.

[0022] 5. This is an energy-efficient graphene far-infrared conductive slurry and its preparation method. Far-infrared radiation can improve human microcirculation and immunity, bringing better health benefits. The far-infrared radiation emitted by the graphene far-infrared conductive slurry can penetrate the skin, promote blood circulation and metabolism, help relieve muscle fatigue and joint discomfort, while improving the function of the immune system and enhancing overall health, so that users can get more health benefits while enjoying warmth. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1: A high-efficiency and energy-saving graphene far-infrared conductive slurry, the raw materials of which are formulated by weight as follows: 10.0 parts of graphene powder, 2.0 parts of polyvinyl alcohol, 1.2 parts of conductive polymer, 2.5 parts of titanium oxide, 5.0 parts of ethanol, 0.5 parts of dispersant, 0.5 parts of thickener, 0.5 parts of sodium fluoride, 0.75 parts of ammonia water, 0.5 parts of silica gel, 0.25 parts of polytetrafluoroethylene, 0.75 parts of carbon nanotubes, 0.5 parts of aluminum oxide, 0.5 parts of polyacrylonitrile, and 0.25 parts of sulfide, wherein the dispersant includes one or a mixture of polyvinyl pyrrolidone, polyvinylidene fluoride, polyvinyl alcohol acetal resin, cellulose ether and derivatives thereof, and the thickener is one or a mixture of bentonite or silane coupling agent.

[0025] A method for preparing an efficient and energy-saving graphene far-infrared conductive slurry comprises the following steps:

[0026] S1: 10.0 parts of graphene powder and 0.5 parts of dispersant were stirred and dispersed in a stirring disperser for 5 hours at a speed of 2000 rpm;

[0027] S2: Add graphene dispersion, 2.5 parts of titanium oxide, 2.0 parts of polyvinyl alcohol, 1.2 parts of conductive polymer, 0.75 parts of carbon nanotubes, 0.5 parts of silica gel, 0.5 parts of sodium fluoride, 0.25 parts of sulfide and 5.0 parts of ethanol into a grinder, set the grinder speed to 1500 rpm, the grinding time to 6 hours, and regularly check the fineness of the slurry;

[0028] S3: The fineness of the slurry is detected by an electronic scraper fineness meter until the fineness reaches the nanometer level (less than 100 nanometers). If necessary, continue grinding until the required fineness is reached;

[0029] S4: After grinding, pour the slurry into a clean container, let it stand and degas to remove bubbles and impurities, add 0.5 parts of thickener, mix and stir, and let it stand for 1 hour;

[0030] S5: Carry out final physical and chemical property testing, including conductivity, far-infrared radiation performance and uniformity, to ensure that the performance of the slurry meets the requirements.

[0031] Embodiment 2: A highly efficient and energy-saving graphene far-infrared conductive slurry, the raw materials of which are formulated by weight as follows: 12.0 parts of graphene powder, 2.0 parts of polyvinyl alcohol, 1.5 parts of conductive polymer, 3.0 parts of titanium oxide, 10.0 parts of ethanol, 1.0 parts of dispersant, 0.5 parts of thickener, 0.5 parts of sodium fluoride, 2.0 parts of ammonia water, 1.0 parts of silica gel, 0.5 parts of polytetrafluoroethylene, 1.0 parts of carbon nanotubes, 1.5 parts of aluminum oxide, 1.0 parts of polyacrylonitrile, and 0.5 parts of sulfide, wherein the dispersant includes one or a mixture of polyvinyl pyrrolidone, polyvinylidene fluoride, polyvinyl alcohol acetal resin, cellulose ether and derivatives thereof, and the thickener is one of bentonite or silane coupling agent.

[0032] A method for preparing an efficient and energy-saving graphene far-infrared conductive slurry comprises the following steps:

[0033] S1: 12.0 parts of graphene powder and 1.0 part of dispersant were stirred and dispersed in a stirring disperser for 5 hours at a speed of 2100 rpm;

[0034] S2: Add graphene dispersion, 3.0 parts of titanium oxide, 2.0 parts of polyvinyl alcohol, 1.5 parts of conductive polymer, 1.0 parts of carbon nanotubes, 1.0 parts of silica gel, 0.5 parts of sodium fluoride, 0.5 parts of sulfide and 10.0 parts of ethanol into a grinder, set the grinder speed to 1600 rpm, the grinding time to 6 hours, and regularly check the fineness of the slurry;

[0035] S3: The fineness of the slurry is detected by an electronic scraper fineness meter until the fineness reaches the nanometer level (less than 100 nanometers). If necessary, continue grinding until the required fineness is reached;

[0036] S4: After grinding, pour the slurry into a clean container, let it stand and degas to remove bubbles and impurities, add 0.5 parts of thickener, mix and stir, and let it stand for 1.1 hours;

[0037] S5: Carry out final physical and chemical property testing, including conductivity, far-infrared radiation performance and uniformity, to ensure that the performance of the slurry meets the requirements.

[0038] Embodiment 3: A high-efficiency and energy-saving graphene far-infrared conductive slurry, the raw materials of which are formulated by weight as follows: 14.0 parts of graphene powder, 2.5 parts of polyvinyl alcohol, 1.8 parts of conductive polymer, 3.5 parts of titanium oxide, 12.0 parts of ethanol, 1.2 parts of dispersant, 0.6 parts of thickener, 0.5 parts of sodium fluoride, 2.5 parts of ammonia water, 1.2 parts of silica gel, 0.6 parts of polytetrafluoroethylene, 1.2 parts of carbon nanotubes, 1.8 parts of aluminum oxide, 1.2 parts of polyacrylonitrile, and 0.6 parts of sulfide, wherein the dispersant includes one or a mixture of polyvinyl pyrrolidone, polyvinylidene fluoride, polyvinyl alcohol acetal resin, cellulose ether and derivatives thereof, and the thickener is one of bentonite or silane coupling agent.

[0039] A method for preparing an efficient and energy-saving graphene far-infrared conductive slurry comprises the following steps:

[0040] S1: 14.0 parts of graphene powder and 1.2 parts of dispersant were stirred and dispersed in a stirring disperser for 5 hours at a speed of 2200 rpm;

[0041] S2: Add graphene dispersion, 3.5 parts of titanium oxide, 2.5 parts of polyvinyl alcohol, 1.8 parts of conductive polymer, 1.2 parts of carbon nanotubes, 1.2 parts of silica gel, 0.5 parts of sodium fluoride, 0.6 parts of sulfide and 12.0 parts of ethanol into a grinder, set the grinder speed to 1700 rpm, the grinding time to 6 hours, and regularly check the fineness of the slurry;

[0042] S3: The fineness of the slurry is detected by an electronic scraper fineness meter until the fineness reaches the nanometer level (less than 100 nanometers). If necessary, continue grinding until the required fineness is reached;

[0043] S4: After grinding, pour the slurry into a clean container, let it stand and degas to remove bubbles and impurities, add 0.6 parts of thickener, mix and stir, and let it stand for 1.2 hours;

[0044] S5: Carry out final physical and chemical property testing, including conductivity, far-infrared radiation performance and uniformity, to ensure that the performance of the slurry meets the requirements.

[0045] Embodiment 4: A high-efficiency and energy-saving graphene far-infrared conductive slurry, the raw materials of which are formulated by weight as follows: 16.0 parts of graphene powder, 3.0 parts of polyvinyl alcohol, 2.0 parts of conductive polymer, 4.0 parts of titanium oxide, 15.0 parts of ethanol, 1.5 parts of dispersant, 0.8 parts of thickener, 0.8 parts of sodium fluoride, 3.0 parts of ammonia water, 1.5 parts of silica gel, 0.8 parts of polytetrafluoroethylene, 1.5 parts of carbon nanotubes, 2.0 parts of aluminum oxide, 1.5 parts of polyacrylonitrile, and 0.8 parts of sulfide, wherein the dispersant includes one or more of polyvinyl pyrrolidone, polyvinylidene fluoride, polyvinyl alcohol acetal resin, cellulose ether and derivatives thereof, and the thickener is one of bentonite or silane coupling agent.

[0046] A method for preparing an efficient and energy-saving graphene far-infrared conductive slurry comprises the following steps:

[0047] S1: 16.0 parts of graphene powder and 1.5 parts of dispersant were stirred and dispersed in a stirring disperser for 5 hours at a speed of 2300 rpm;

[0048] S2: Add graphene dispersion, 4.0 parts of titanium oxide, 3.0 parts of polyvinyl alcohol, 2.0 parts of conductive polymer, 1.5 parts of carbon nanotubes, 1.5 parts of silica gel, 0.8 parts of sodium fluoride, 0.8 parts of sulfide and 15.0 parts of ethanol into a grinder, set the grinder speed to 1800 rpm, the grinding time to 6 hours, and regularly check the fineness of the slurry;

[0049] S3: The fineness of the slurry is detected by an electronic scraper fineness meter until the fineness reaches the nanometer level (less than 100 nanometers). If necessary, continue grinding until the required fineness is reached;

[0050] S4: After grinding, pour the slurry into a clean container, let it stand and degas to remove bubbles and impurities, add 0.8 parts of thickener, mix and stir, and let it stand for 1.3 hours;

[0051] S5: Carry out final physical and chemical property testing, including conductivity, far-infrared radiation performance and uniformity, to ensure that the performance of the slurry meets the requirements.

[0052] Embodiment 5: A high-efficiency and energy-saving graphene far-infrared conductive slurry, the raw materials of which are formulated by weight as follows: 18.0 parts of graphene powder, 3.2 parts of polyvinyl alcohol, 2.2 parts of conductive polymer, 4.5 parts of titanium oxide, 16.0 parts of ethanol, 1.7 parts of dispersant, 0.9 parts of thickener, 0.9 parts of sodium fluoride, 3.2 parts of ammonia water, 1.7 parts of silica gel, 0.9 parts of polytetrafluoroethylene, 1.7 parts of carbon nanotubes, 2.2 parts of aluminum oxide, 1.7 parts of polyacrylonitrile, and 0.9 parts of sulfide, wherein the dispersant includes one or more of polyvinyl pyrrolidone, polyvinylidene fluoride, polyvinyl alcohol acetal resin, cellulose ether and derivatives thereof, and the thickener is one of bentonite or silane coupling agent.

[0053] A method for preparing an efficient and energy-saving graphene far-infrared conductive slurry comprises the following steps:

[0054] S1: 18.0 parts of graphene powder and 1.7 parts of dispersant were stirred and dispersed in a stirring disperser for 5 hours at a speed of 2400 rpm;

[0055] S2: Add graphene dispersion, 4.5 parts of titanium oxide, 3.2 parts of polyvinyl alcohol, 2.2 parts of conductive polymer, 1.7 parts of carbon nanotubes, 1.7 parts of silica gel, 0.9 parts of sodium fluoride, 0.9 parts of sulfide and 16.0 parts of ethanol into a grinder, set the grinder speed to 1900 rpm, the grinding time to 6 hours, and regularly check the fineness of the slurry;

[0056] S3: The fineness of the slurry is detected by an electronic scraper fineness meter until the fineness reaches the nanometer level (less than 100 nanometers). If necessary, continue grinding until the required fineness is reached;

[0057] S4: After grinding, pour the slurry into a clean container, let it stand and degas to remove bubbles and impurities, add 0.9 parts of thickener, mix and stir, and let it stand for 1.4 hours;

[0058] S5: Carry out final physical and chemical property testing, including conductivity, far-infrared radiation performance and uniformity, to ensure that the performance of the slurry meets the requirements.

[0059] Embodiment 6: A high-efficiency and energy-saving graphene far-infrared conductive slurry, the raw materials of which are formulated by weight as follows: 20.0 parts of graphene powder, 3.6 parts of polyvinyl alcohol, 2.5 parts of conductive polymer, 5.0 parts of titanium oxide, 18.0 parts of ethanol, 2.0 parts of dispersant, 1.0 parts of thickener, 1.0 parts of sodium fluoride, 3.6 parts of ammonia water, 2.0 parts of silica gel, 1.0 parts of polytetrafluoroethylene, 2.0 parts of carbon nanotubes, 2.5 parts of aluminum oxide, 2.0 parts of polyacrylonitrile, and 1.0 parts of sulfide, wherein the dispersant includes one or more of polyvinyl pyrrolidone, polyvinylidene fluoride, polyvinyl alcohol acetal resin, cellulose ether and derivatives thereof, and the thickener is one of bentonite or silane coupling agent.

[0060] A method for preparing an efficient and energy-saving graphene far-infrared conductive slurry comprises the following steps:

[0061] S1: 20.0 parts of graphene powder and 2.0 parts of dispersant were stirred and dispersed in a stirring disperser for 5 hours at a speed of 2500 rpm;

[0062] S2: Add graphene dispersion, 5.0 parts of titanium oxide, 3.6 parts of polyvinyl alcohol, 2.5 parts of conductive polymer, 2.0 parts of carbon nanotubes, 2.0 parts of silica gel, 1.0 part of sodium fluoride, 1.0 part of sulfide and 18.0 parts of ethanol into a grinder, set the grinder speed to 2000 rpm, the grinding time to 6 hours, and regularly check the fineness of the slurry;

[0063] S3: The fineness of the slurry is detected by an electronic scraper fineness meter until the fineness reaches the nanometer level (less than 100 nanometers). If necessary, continue grinding until the required fineness is reached;

[0064] S4: After grinding, pour the slurry into a clean container, let it stand and degas to remove bubbles and impurities, add 1.0 part of thickener, mix and stir, and let it stand for 1.5 hours;

[0065] S5: Carry out final physical and chemical property testing, including conductivity, far-infrared radiation performance and uniformity, to ensure that the performance of the slurry meets the requirements.

[0066] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the claims and their equivalents.

[0067] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A highly efficient and energy-saving graphene far-infrared conductive slurry, characterized in that: The formula of the raw materials by weight is as follows: 10.0-20.0 parts of graphene powder, 2.0-3.6 parts of polyvinyl alcohol, 1.2-2.5 parts of conductive polymer, 2.5-5.0 parts of titanium oxide, 5.0-18.0 parts of ethanol, 0.5-2.0 parts of dispersant, 0.5-1.0 parts of thickener, 0.5-1.0 parts of sodium fluoride, 0.75-3.6 parts of ammonia water, 0.5-2.0 parts of silica gel, 0.25-1.0 parts of polytetrafluoroethylene, 0.75-2.0 parts of carbon nanotubes, 0.5-2.5 parts of aluminum oxide, 0.5-2.0 parts of polyacrylonitrile, and 0.25-1.0 parts of sulfide.

2. The high-efficiency and energy-saving graphene far-infrared conductive slurry according to claim 1, characterized in that: The dispersant includes one or a mixture of polyvinyl pyrrolidone, polyvinylidene fluoride, polyvinyl acetal resin, cellulose ether and derivatives thereof.

3. The high-efficiency and energy-saving graphene far-infrared conductive slurry according to claim 1, characterized in that: The thickener is bentonite or a silane coupling agent or a mixture of the two.

4. A method for preparing an energy-efficient graphene far-infrared conductive slurry, characterized in that: A high-efficiency and energy-saving graphene far-infrared conductive slurry comprising any one of claims 1 to 3, comprising the following steps: S1: 10.0 parts to 20.0 parts of graphene powder and 0.5 parts to 2.0 parts of dispersant are stirred and dispersed in a stirring disperser; S2: adding graphene dispersion, 2.5-5.0 parts of titanium oxide, 2.0-3.6 parts of polyvinyl alcohol, 1.2-2.5 parts of conductive polymer, 0.75-2.0 parts of carbon nanotubes, 0.5-2.0 parts of silica gel, 0.5-1.0 parts of sodium fluoride, 0.25-1.0 parts of sulfide and 5.0-18.0 parts of ethanol into a grinder, and regularly checking the fineness of the slurry; S3: The fineness of the slurry is detected by an electronic scraper fineness meter until the fineness reaches the nanometer level (less than 100 nanometers). If necessary, continue grinding until the required fineness is reached; S4: After grinding, pour the slurry into a clean container, let it stand and degas to remove bubbles and impurities, add 0.5 to 1.0 parts of thickener, mix and stir, and let it stand for 1 hour to 1.5 hours; S5: Carry out final physical and chemical property testing, including conductivity, far-infrared radiation performance and uniformity, to ensure that the performance of the slurry meets the requirements.

5. The method for preparing a highly efficient and energy-saving graphene far-infrared conductive slurry according to claim 4, characterized in that: The dispersion time in S1 is 5 hours, and the rotation speed is 2000 rpm-2500 rpm.

6. The method for preparing a highly efficient and energy-saving graphene far-infrared conductive slurry according to claim 4, characterized in that: The grinding machine in S2 has a rotation speed of 1500 rpm to 2000 rpm, and the grinding time is 6 hours.