Time：2023.08.25Browse：1
Carbon materials are chemically inert in non oxidizing media. Under normal temperature and pressure, no chemical changes will occur. Except for long-term immersion in nitric acid, hydrofluoric acid, or in fluorine, bromine, and other strong oxidizing atmospheres, interlayer compounds will slowly form. It is not corroded by other acids, bases, and salts, and does not interact with any organic compounds. There is no significant oxidation phenomenon of graphite within 450 ℃ in the air. It only reacts with water vapor above 700 ℃ and with CO and CO2 above 900 ℃. The temperature at which graphite produces carbides with certain metal and oxide powders is mostly above 1000 ℃.
The chemical reactions of carbon materials can be divided into the following three types:
(1) Gasification reaction and high-temperature oxidation reaction;
(2) Solid solid reactions with metals, ceramics, etc;
(3) Formation reaction of interlayer compounds.
2023-12-12There are weak van der Waals forces between layers in the structure of graphite, and these interactions are disrupted under high temperature conditions, leading to interlayer detachment of graphite.
Graphite is a kind of homogenous alien in element carbon. Each carbon atom is connected to the other three carbon atoms (multiple hexagonal sixtures with honeycomb -shaped hexagonal) with covalent bonds to form covalent molecules. [1] Because each carbon atom will release an electron, those electrons can move freely, so graphite is a conductive body. Graphite is one of the softest minerals, and its purpose includes a pencil core and lubricant. Carbon is a non -metal element that is located in the second cycle IVA family located in the element cycle table. Latin is Carbonium, which means "coal, charcoal".The melting point of diamond is 3823K, and the melting point of graphite is 3773K. Graphite melting points are lower than diamonds. The melting point of graphite and diamond cannot be considered simply from the aspects of the key energy. If the number of broken keys during melting is ignored, the data obtained is not desirable2023-05-22Graphite melting point
2023-04-03In recent years, graphite molds have continued to impact model shell sales markets with their high -quality characteristics, and have become the new darling of the machinery processing industry. The manufacturers of Kobwee Grapeite products below told everyone that the shortcomings and preventive methods of the heat treatment process of graphite mold.
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 good2023-06-27Why is battery specific graphite widely used in electronic products?
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