When magnesium hydroxide is heated (340-490 degrees), it will decompose and absorb the heat on the surface of the combustor to make it flame retardant; meanwhile, it will release a lot of water to dilute the oxygen on the surface of the combustor, and the active magnesium oxide generated by decomposition will adhere to the surface of the combustor and further prevent the combustion. In the whole process of flame-retardant, magnesium hydroxide not only does not produce any harmful substances, but also its decomposition products can absorb a large number of harmful gases and smoke generated by the combustion of rubber, plastic and other macromolecules while flame retardant. Active magnesium oxide continuously absorbs the incomplete combustion of melting residues, so as to eliminate the smoke and prevent the droplet while the combustion stops quickly. It is a new type of product Environmental friendly inorganic flame retardant.

Flame retardant can be divided into organic flame retardant and inorganic flame retardant according to chemical composition. Organic flame retardants are divided into two series: phosphorus series and halogen series. Organic flame retardants are gradually being replaced by inorganic flame retardants due to their disadvantages such as toxic decomposition products and smoke.

The main varieties of inorganic flame retardants are aluminum hydroxide, magnesium hydroxide, red phosphorus, antimony oxide, tin oxide, molybdenum oxide, ammonium molybdate, zinc borate, etc., among which aluminum hydroxide and magnesium hydroxide absorb a lot of heat due to decomposition, and produce H2O to insulate the air, and the oxide after decomposition is a high temperature resistant material, so the two flame retardants can not only play a role in flame retardancy, but also play a role in filling It has the characteristics of no corrosive halogen gas and harmful gas, no volatilization, lasting effect, no poison, no smoke and no drop.