The demand of expanded graphite is very large in recent years, because the use of expanded graphite in industry is very many places. Expanded graphite as a good flame retardant, deeply rooted in various fields of industry, what is the principle of expanded graphite as a flame retardant, what are the advantages. Here's a brief introduction:
      Expanded graphite is a good flame retardant for plastic materials, which is halogen-free, non-toxic and pollution-free. The principle of action is: at high temperature, the expanded graphite expands rapidly, suffocating the flame, and the graphite expanded material produced by it covers the surface of the substrate, isolating the contact between thermal radiation and oxygen .The acid in the interlayer is released during the expansion, which also promotes the carbonization of the substrate, thus achieving a good effect through a variety of flame retardant methods.

The dosage of expanded graphite is much less than that of common flame retardant when the same flame retardant effect is achieved.And the chemical properties of expanded graphite are relatively stable, will not appear any side effects. At present, expanded graphite has been widely used in flame retardant polyurethane, flame retardant polyolefin, flame retardant rubber, flame retardant polyphenyl plastics, flame retardant carbonate oligomers, flame retardant asphalt and flame retardant cables.