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By Lzh | 16 February 2023 | 0 Comments

Why does expandable graphite have compression resilience?

What is expandable graphite?
Expandable graphite is chemical methods to insert non-carbonaceous reactants into the graphite layer and combines with the hexagonal network plane of carbon while maintaining the graphite layer structure. It maintains the excellent physical and chemical properties of graphite. It presents new properties that the original graphite and the intercalated material do not have due to the interaction between them and the graphite layer. When the graphite with intercalation compound encounters high temperature, the intercalation compound will decompose and produce a thrust along the C-axis direction of the graphite interlayer, which is far greater than the interlayer binding force of the graphite particles. Under this thrust, the graphite interlayer is pushed away so that the graphite particles expand exponentially along the C-axis, forming wormlike expanded graphite l2]. The graphite layer can be "embedded" with chemical substances and has expansibility. If sulfuriSupposeacid can be used to treat graphite, the grape. In that case,ite will expand at high temperatures after drying, which is caused by the "embedding" of sulfuric acid molecules into the graphite layer.
Types of expandable graphite
Graphite packing: graphite packing is a sealing material woven with cotton or graphite fibre and foil. Graphite packing with cotton fibre core (SPM type) is suitable for sealing pipes, valves, pumps, etc., with a pressure of 12MPa and temperature below 200 . The contact medium can be river water, tap water, groundwater, seawater, oil, etc. Graphite packing with graphite fibre as the core (SPS type) applies to sealing pipes, valves, pumps, etc., with a pressure of 12MPa and a temperature below 350 . In addition to all kinds of water and oil, the contact medium can also contact acid and alkali substances.
Other information about expandable graphite
The expanded graphite-loaded TiO2 photocatalyst material was prepared. TiO2 was attached to the surface of the expanded graphite sheet in the form of nanoparticles. The expanded graphite has a special wormlike structure with loose pores, providing a three-dimensional degradation environment of high concentration for TiO2. The material is a floating photocatalyst, which can easily be recycled and reused. After repeated use, the catalyst has no obvious deactivation and still shows a high photocatalytic effect.
Price of expandable graphite
Expandable graphite particle size and purity will affect the product's price, and the purchase volume can also affect the cost of expandable graphite. A large amount of large amount will be lower. The price of expandable graphite can be found on our company's official website.

Expandable graphite supplier
Luoyang Tongrun Nano Technology Co. Ltd.  (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including expandable graphite, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective expandable graphite, you are welcome to contact us or inquire at any time.

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