Graphite (graphite) is a crystalline carbon. Hexagonal system, for the iron color to dark gray. Soft, greasy feeling, can be conductive. Chemical nature is not active, corrosion resistance, and acid, alkali and other difficult to react. Heat in the air or oxygen to heat, can burn and generate carbon dioxide. Strong oxidizing agent will oxidize it into organic acid, used as anti-friction agent and lubricating material, making crucible, electrode, dry battery, pencil lead.
Flake graphite is a natural crystalline graphite, its shape fish-like, hexagonal system, was layered structure,High temperature resistant, conductive, thermal conductivity, lubrication, plastic and acid and other properties. It is a layered solid structure of solid lubricants, rich in resources and cheap.
Flake graphite as a function of the filler material is mainly used for anti-corrosion coatings, fire retardant coatings and conductive coatings.
Expandable graphite can be used as a fire retardant filler, it is a natural graphite flake as raw material, by chemical or electrochemical treatment of a graphite intercalation compounds. Expandable graphite in the heated conditions, the rapid expansion of the volume (up to 300 times) choking the flame, while the formation of expansion, to isolate the flame, delay or interrupt the role of flame spread,and itself is not combustible, soft, good surface, high carbon
layer strength is good.
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