Flake graphite is a natural crystalline crystalline graphite, its shape fish-like, hexagonal system, was layered structure, with good high temperature, conductive, thermal conductivity, lubrication, plastic and acid and other properties.

Flake graphite is a layered solid natural lubricant, rich in resources and cheap.

Features

Flake graphite crystal integrity, thin and toughness, excellent physical and chemical properties, with good thermal conductivity, conductivity, thermal shock resistance, corrosion resistance and so on.

Application

Refractory materials

Flake graphite is widely used in metallurgical industry's advanced refractory materials and coatings. Such as magnesium carbon brick, crucible and so on. Military industrial pyrotechnics materials stabilizer, smelting industry desulfurization accelerator, light industry pencil lead, the electrical industry carbon brush, the battery industry electrode, fertilizer industry catalyst. Flake graphite after deep processing, but also can produce graphite milk, for lubricants, release agent, drawing agent, conductive coatings. It can also produce expanded graphite for flexible graphite products such as flexible graphite seals and flexible graphite composite materials.

Paint

Flake graphite as a function of the filler material is mainly used for anti-corrosion coatings, fire retardant coatings and conductive coatings.

As anti-corrosion materials, it and carbon black, talc and oil made of rust-proof primer, with good resistance to chemical and solvent corrosion; if the formula by adding zinc and other chemical pigments, the rust better The

Used as a fire-resistant filler is expandable graphite, 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 its own non-combustible, soft, , Carbonization layer strength is good. But the volume and amount of the expansion of the body to choose appropriate. Tests show that 150um of particles, 30% of the expansion factor, 5% of the amount of the most appropriate.

Flake graphite can be directly used as a carbon conductive filler can also be made of composite conductive filler for conductive coating. However, due to the large amount of graphite scale added, the performance of the paint will become brittle and its application subject to certain restrictions. Therefore, to take measures to further improve the conductivity of graphite, effectively reduce the amount of graphite scales added. Domestic Tianhua Chemical Machinery Research Institute has developed a high-temperature corrosion-resistant resin as the base material, to conduct a strong electrostatic capacity of large pieces of solid graphite as the main aggregate, with high strength and high wear resistance.

Good shear resistance of the chopped fiber material for the functional filler of the solvent-free thick film conductive coating. The coating has the characteristics of anti-corrosive medium penetration, curing residual stress is small, anti-matrix deformation cracking, construction performance and stability, long-term static electricity characteristics. Can be used for crude oil tank internal wall electrostatic coating. According to reports, the use of chemical plating technology on the graphite powder coated metal, such as copper, nickel, silver and other composite conductive filler, 30% of the amount used in conductive coatings, not only its good conductivity, and further corrosion improve.

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