High purity flake graphite 100 mesh
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High purity graphite refers to graphite powder containing more than 99.9% carbon, high purity graphite of high carbon content, such high purity graphite has good conductivity, lubrication, high-temperature resistance, wear resistance, etc.
The use of high purity graphite in the field of industrial production has excellent performance. High purity graphite is used in conductive, lubrication, metallurgy, and other industrial production fields. High purity graphite production, from the beginning of the raw materials, should be strictly controlled the content of impurities, choose low ash raw materials, and in the production process to prevent the increase of pollutants as far as possible. However, the reduction of contaminants to the degree required is primarily in the graphite chemical sequence. Graphitization occurs at high temperatures, where the oxides of many impurity elements will decompose and evaporate. The higher the graphitization temperature is, the more impurities are discharged, the higher the purity of the high purity graphite products are produced. The high purity graphite is used to make use of its excellent conductivity, lubrication, high-temperature resistance, etc.
| Grade | Fixed Carbon
(%) | Particle Size
(mesh) | Moisture
(%) | PH | Fluoride
(ppm) | Chloride
(ppm) |
| HS3299AA | >99 | +32 | <0.5 | 6-8 | <50 | <50 |
| HS59998AA | >99.98 | +50 | <0.5 | 6-8 | <50 | <50 |
| HS59995AA | >99.95 | +50 | <0.5 | 6-8 | <50 | <50 |
| HS599AA | >99 | +50 | <0.5 | 6-8 | <50 | <50 |
| HS899AA | >99 | +80 | <0.5 | 6-8 | <50 | <50 |
| HS599 | >99 | +50 | <0.5 | 3-6 | * | * |
| HS5999 | >99.9 | +50 | <0.5 | 3-6 | * | * |
| HS+199AA | >99 | +100 | <0.5 | 6-8 | <50 | <50 |
| HS-199AA | >99 | -100 | <0.5 | 6-8 | <50 | <50 |
High purity graphite is a high purity, fewer impurities. This depends on the complete production process and production equipment.
Special properties of graphite
1. Conductivity, thermal conductivity: The conductivity of graphite than the general non - metallic ore 100 times higher. The thermal conductivity exceeds that of steel, iron, lead, and other metallic materials. The thermal conductivity decreases with temperature, and even at very high temperatures, graphite becomes adiabatic. Graphite conducts electricity because each carbon atom in graphite forms only three Covalent bonds with other carbons, each of which remains one free electron to carry the charge.
2. Plasticity: Graphite toughness is good, can be ground into a fragile sheet.
3. Thermal shock resistance: Graphite in the room temperature when used to withstand the dramatic changes in temperature without destruction, temperature mutation, the volume of graphite changes little, will not produce cracks.
Application field
(1) Graphene industry
Compared with various preparation methods of graphene, graphite oxide reduction method will become the most promising and promising method to synthesize graphene and its materials. The primary raw material of graphite oxide reduction method is high purity natural flake graphite.
(2) Flexible graphite industry
To sum up, flexible graphite has a unique use value and broad development prospect. But in the production process, there are purity requirements, chemical acid purification often destroys or affect the excellent material properties, high-temperature physical refinement has apparent advantages.
(3) Other trades
Natural high purity graphite powder has the advantages of high-temperature resistance, good electrical and thermal conductivity, lubricity, chemical stability, excellent wear resistance, can be used as synthetic crystalline silicon carbide and boron carbide raw materials, hidden aircraft coating and chemical industry, electronics, machinery, and other industrial fields, has an extensive range of applications.
To sum up, the high purity graphite powder market has a broad prospect. It is urgent to provide a large number of high-quality, high purity graphite powder for the marke
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Hensen 100 Mesh High Purity Graphite Thermal Shock Resistant Images
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