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Basic characteristics of the graphite used in the sealing module

Release time:

2023/11/24

Source:

Wenlong Battery

The graphite used in the sealing module is an important non-metallic mineral, which belongs to the hexagonal system and has a special layered structure. As early as the 1960 s, Brody natural graphite was heated with chemical reagents such as sulfuric acid and nitric acid, and expanded graphite (expanded graphite, EG), which is a new type of atomic and molecular scale carbon material, showed unique physical and chemical properties. However, the application started after death. In the past 20 years, many countries have carried out the research and development of expanded graphite and made great breakthroughs. As an important inorganic non-metallic material, expanded graphite material is widely used in environmental, chemical, metallurgy, power machinery, aerospace, atomic energy and other industries, with strong vitality and market prospects.
Basic properties of expanded graphite
The expanded graphite crystals still belong to the hexagonal system and are shaped like worms. Expanded graphite is between a few millimeters and a few millimeters in size, so it is also called worm graphite. After expansion, the apparent volume of graphite is 250 to 300 ml/g or more, and has a unique microporous structure with a large internal network. The new expanded graphite carbon material not only has the excellent properties of natural graphite itself, such as heat resistance, corrosion resistance, radiation resistance and electrical conductivity, self-lubrication, but also natural graphite has light, soft, porous, compression and rebound properties, especially the performance of expanded graphite modified composite expanded graphite material is better than that of carbon fiber, asbestos material, rubber and other better and widely used. A variety of sealed modules: plates, belts, sheets and other shapes made of expanded graphite, and various electronic and mechanical devices have been widely used, showing the advantages of low cost, long life, and good effect.

Keyword:

Frequently check the sealing module to avoid aging

Good sealing module processing technology