2023-04-20

Optical and mechanical properties of graphene

Graphene has excellent optical properties, with an absorption rate of about 2.3% over a wide wavelength range, making it almost transparent. Within the thickness range of several layers of graphene, with each increase in thickness, the absorption rate increases by 2.3%. Large area graphene films also have excellent optical properties, and their optical properties change wi

2023-11-10

Advantages and disadvantages of graphite purification methods

Flotation method is one of the conventional mineral purification methods that consumes the least energy and reagents, and has the lowest cost. This is the biggest advantage of flotation method for purifying graphite. However, using flotation to purify graphite can only achieve a limited increase in its grade. For flake graphite, using multi-stage grinding not only cannot completely dissociate its monomer, but also is not conducive to protecting the large scale of graphite. Therefore, using flotation to further improve graphite grade is neither economical nor scientific. To obtain high carbon graphite with a carbon content of over 99%, chemical methods must be used to purify the graphite.(1) Alkali acid purification method. The carbon content of graphite purified by alkaline acid method can reach over 99%, which has the characteristics of low one-time investment, high product grade, and strong process adaptability. Moreover, it also has the advantages of conventional equipment and stro

2023-06-26

Basic overview of high-purity graphite?

High purity graphite is widely used in various industries, so its use is definitely very extensive. In fact, this high-purity graphite mainly means that the carbon content of graphite is more than 99.99%. It is also widely used in advanced refractory materials and coatings in metallurgical industry, stabilizers for military initiating explosive devices, pencil lead in light industry, carbon brushes in electrical industry, electrodes in battery industry, catalyst additives in fertilizer industry, etc. Of course, the scale crystals of the product are complete, thin and tough, with excellent physical and chemical properties. It has good thermal conductivity, temperature resistance, self-lubrication, conductivity, thermal shock resistance, corrosion resistance, and other properties. In addition, the high-purity graphite (also known as flake high thermal conductivity carbon powder) mentioned today has high strength. Of course, in addition to this, it also has advantages such as good therma

2023-04-18

The application of scales graphite in the coating industry

The functional fillers of scales are mainly used for anti -corrosion coatings, fireproof coatings and conductive coatings.As an anticorrosive material, it has a good rust -proof primer made of charcoal black, talc powder and oil. It has good chemical resistance and solvent corrosion performance. If you add chemical pigments such as zinc yellow to the formula, its rust -proof effect is better. EssenceIt is used as a fireproof filler. It is expandable graphite. It is a graphite intervertebral compound obtained by natural graphite scales. 300 times) suffocating the flame, and at the same time, the expansion material is generated to achieve the effect of isolation of the flame, delay or interrupting the flame spread, and it is not burning, soft, high on the surface, and good coach layer. However, the volume and dosage of the expansion body should be appropriate. Tests show that 150um particles, 30%expansion multiple, and 5%of the amount are the most suitable.Scales graphite can be directl

2023-08-25

Thermal conductivity of polycrystalline graphite

The so-called carbon materials such as artificial graphite molded products are polycrystalline materials with extremely complex structures, and the basic structure of graphite crystallization has strong anisotropy. Therefore, the macroscopic thermal conductivity of carbon materials, apart from relying on empirical data, is almost unpredictable. The factors that have a significant impact on thermal conductivity include:(1) The differences in the basic properties of the initial raw materials;(2) The manufacturing process - macroscopic anisotropy;(3) Heat treatment temperature - the growth degree of graphite microcrystals;(4) Apparent density, distribution of holes, etc.

2023-04-20

Electronic effect of graphene

The application field and future development trend of conductive graphite

Condent graphite is a material with high electrical conductivity. Because of its excellent conductive performance and high mechanical strength, it is widely used in many fields. In this article, we will explore the application areas and future development trends of conductive graphite.1. Battery fieldConductive graphite has excellent conductivity and mechanical strength, and is one of the indispensable materials in battery manufacturing. Condent graphite can be used to produce negative electrode materials for lithium -ion batteries, which can increase the cycle life and energy density of the battery while reducing the self -discharge rate of the battery.2. Electronic fieldCondent graphite can be used as conductive materials for electronic products, such as display, touch screen and printing circuit board. The conductive performance of conductive graphite can make the electronic equipment more sensitive and responding faster, and at the same time, it can also improve the mechanical str

2023-11-28

Introduction to the Application of Graphite Powder in Industry by Graphite Manufacturers

Due to the characteristics of graphite powder, graphite manufacturers introduce that graphite powder is widely used in industrial applications such as chemical plants, crude oil, metallurgy, forging, lubrication, and sealing. Let's follow graphite manufacturers to learn about the applications of graphite powder in industry:Graphite powder has strong conductivity and heat transfer, high melting point, good lubrication, ductility, and chemical resistance. Graphite powder can withstand strong acid, strong alkali, organic solution and other etching.Graphite powder can be used as a conductive raw material for the production and manufacturing of electrical grade, carbon brushes, carbon tubes, carbon rods, television tube coatings, etc. in the electrical equipment industry. Graphite powder can be used as a refractory insulation material, as well as a protective film for graphite tongs, ironmaking, and steel castings.Graphite powder can be used as a lubricating material and as a lubricant in

2023-04-24

Which of the scale of the number of meters is more?

Scales graphite has many specifications. Different specifications are determined according to different goals. The number of scale graphite ranges from 50 ~ 12000 mesh. A specification of scales graphite, so why is the 325 -purpose scales graphite application very wide? The following Jinhui graphite editor will analyze it in detail:Scales graphite is a natural scales graphite as the processing raw material. After machinery, it can be crushed to 325 mesh graphite powder. The 325 -mesh scales graphite is purified and other processed. It can be processed into a carbon -containing 325 -mesh graphite powder with a carbon content of 99%or 99.9%. Such a 325 -mesh scales graphite has good conductivity, high temperature resistance, and lubrication performance. The use of high carbon -containing 325 mesh scales graphite is used in different industrial production areas.Graphite powder is processed and highly purified on the basis of scales graphite to remove impurities, so that the purpose of 32

2023-03-02

The key features of graphite

1. High fever and conduction: In response to the use of raw materials such as graphite with high thermal conductivity, it reduces the time of fusion.2. High temperature resistance: high -temperature resistance has strong impact characteristics, for rapid cold and hot heat, not easy to crack.3. High temperature resistance: high fire resistance, high temperature to 1200 to 1600 ° C.4. Anti -corrosion resistance: strong adhesion to resist melting soup.5. Anti -reflective impact: have a certain anti -reflective impact resistance (when the funds of the melt material are invested, etc.).6. Antioxidant: Graphite is very easy to oxidize at high temperatures in oxidation. Due to the development of oxidation solution, oxidation consumption is less.7. Anti -adhesion: Because graphite is not easy to stick to the soup, the molten soup is soaked and attached with less adhesion.8. There is very little environmental pollution of metal materials: Because there is no bad matter that infiltrate the envi