2023-06-27

Why is battery specific graphite widely used in electronic products?

With the acceleration of electronic product updates and the increasing demand for miniaturization, high integration, and high function electronic equipment heat dissipation management, a new electronic product heat dissipation technology - graphite data heat dissipation new solution has also been launched. This solution is based on graphite sheets, which are a new natural graphite solution that uses graphite sheets with high heat dissipation efficiency, small space occupation, light weight, and uniform bidirectional heat conduction, Eliminate "hot spots", shield heat sources and components, and improve the functions of Consumer electronics. This new type of graphite sheet is used for laptops, flat panel displays, digital cameras, mobile phones, and Personal Care Assistant.The battery specific graphite sheet is made of expanded graphite by pressing and roasting. The battery specific graphite sheet has high temperature resistance, thermal conductivity, flexibility, elasticity, and good

2023-08-25

Factors affecting the gasification reaction of carbon materials

(1) Degree of graphitization: As the degree of graphitization of carbon materials increases, their activity towards gases decreases. The higher the final heat treatment temperature of carbon materials, the higher the temperature at which they begin to oxidize, so graphite products have a higher starting oxidation temperature than carbon products.(2) Structural state: Carbon materials with loose and porous surfaces are prone to react with gases. For example, the surface dense pyrolytic graphite treated at 3200 ℃ begins to oxidize in air at a temperature of 850 ℃, while the porous and loose charcoal on the surface begins to burn at 360 ℃.(3) Catalytic effect of impurities: Carbon materials contain impurities that have a significant impact on their gasification reaction, with varying catalytic effects. For example, iron, cobalt, nickel, copper, manganese, etc. are catalysts for the oxidation of carbon materials, while impurities such as boron, titanium, and tungsten have inhibitory effec

2023-07-07

How to use expansion graphite

1. Protective useExpansion graphite can be used as protective materials, which can be used to protect metal and other damaged objects, such as circuit boards and steel. Because expansion graphite can expand 10 times, it can effectively block the flames and make these objects from burning with flames.2. InsulationExpansion graphite can also be used as insulation materials, because it has good thermal resistance and can effectively block heat, so it can be used for insulation, such as electronic products. It can also be used for cooling, preventing the loss of heat, thereby playing the role of heat preservation.3. Filtering useExpansion graphite can also be used as filtering materials, because it has adsorption and can be used to adsorb toxic substances, such as pollutants used in water treatment, which can effectively remove pollutants in water. It can also be used for air purification to block the entry of harmful substances.4. Reinforcement useExpansion graphite can also be used as r

2023-09-25

graphite expansion graphite environmental materials

The effect of expanding graphite on water pollution has a large number of research results. In terms of governing oil and organic pollution in the control of water bodies, expansion graphite is far more effective and economical than ordinary activated carbon now. But expansion graphite is inconvenient to transport and needs to be prepared at the application site. The preparation, use, recycling, and regeneration of expansion graphite environmental protection materia

2023-05-04

Why add graphite powder to glass fiber?

Glass fiber enhanced plastic (FRP) is a composite composite material based on synthetic resin. It has the advantages of light weight, high strength, corrosion resistance, microwave transmission, electrical insulation, and reasonable performance design according to requirements. It has been widely used in aerospace, petrochemicals, transportation, construction, shipbuilding, machinery, environmental protection, textile and other fields. Glass fiber enhanced plastic (FRP) has good electrical insulation property. Under normal circumstances, the amount of graphite powder is 2.5 ~ 5%, which can reach 30 ~ 50%. So why add graphite powder to glass fiber?From an economic and technological perspective, it is best to choose inorganic abrasive materials, so the amount of graphite powder in the abrasion -resistant material of the glass fiber reinforcement is relatively large. In short, glass fiber wear -resistant materials, because its matrix is a polymer material, fills solid lubricants and vari

2023-11-07

The difference between expanded graphite and ordinary graphene

Expanded graphite, also known as flexible graphite or vermicular graphite, is a new type of carbon material. Expanded graphite has many advantages, such as large specific surface area, high surface activity, good chemical stability, and high temperature resistance. The commonly used preparation process for expanded graphite is to use natural flake graphite as the material, which is first oxidized to form expandable graphite, and then expanded to form expanded graphite. Expanded graphite materials can instantly expand by 150-300 times in volume when exposed to high temperatures, changing from flaky to wormlike, resulting in a loose structure, porous and curved structure, expanded surface area, improved surface energy, and enhanced adsorption of flake graphite. Wormlike graphite can be self embedded between them, making the material have functions such as flame retardancy, sealing, and adsorption. It has wide applications in fields such as life, military, environmental protection, and c

2023-12-19

Key points of graphite deep processing technology

2023-10-23

Operating Techniques for Graphite Crucibles

Graphite crucible is a very excellent smelting tool that has been praised by people in the metal smelting industry. Its usage method is simple. Below, we will introduce some matters that need to be mastered when using it.The main uses of graphite crucibles include evaporation, concentration or crystallization of solutions, and burning of solid substances. It should be noted that although graphite crucibles have strong temperature adaptability and can be directly heated, they cannot be suddenly cooled after heating. If necessary, use crucible pliers to remove the crucible instead of using technical means to quickly cool it. Because it is directly heated and the heated contents are metals with extremely high dissolution temperatures, the required energy and safety requirements are relatively high. Therefore, during the heating process of the crucible, it is necessary to have a stable environment to ensure the safety and effectiveness of the operation. In general, manufacturers choose to

2024-03-15

The key role of graphite in energy storage technology

With the transformation of global energy structure and the rapid development of renewable energy, energy storage technology has become a key link. In this field, graphite plays an irreplaceable role with its unique properties.First of all, graphite is the main anode material of lithium-ion batteries, and its high energy density and excellent cycling performance make lithium-ion batteries widely used in electric vehicles, smart phones and other fields. With the continuous expansion of the new energy vehicle market, the demand for graphite continues to grow.Secondly, graphite also shows great potential in the field of supercapacitors. Supercapacitors have the advantages of fast charging speed and high power density, and graphite, as an electrode material, can provide good conductivity and stability, which provides the possibility for the performance improvement of supercapacitors.In addition, with the deepening of research, graphite has also shown broad application prospects in new ener

2023-05-24

Graphite application

1. The oxidation and reduction method is used to synthesize graphene to prepare graphene modified electrodes to detect the four bases of DNA. Electrochemical research has found that graphene modifiers can achieve the four bases of DNA at the same time. The graphene and carbon nanotubes and β-cyclic paste are compounded. The carbon nanotuba effectively reduces the gathering of graphene. For high -sensitivity testing for berin nucleoside, the modified electrode can be promoted and applied to the determination of other biomolecules.2. The functionalization of biomolecular single-chain DNA (SSDNA) and graphene, and the prepared SSDNA-graphene composite materials can Stability. SSDNA-graphene composite material is larger than the surface area and has good biocompatibility. It is an excellent oxidation and restorease fixed material. Fix the SSDNA-graphene composite material to prepare glucose sensors for glucose oxidase. Glucose oxidase is realized directly electrochemical and maintains bio