What is flame retardant

Flame retardant is a functional assistant that gives flammability to flammable polymers. It is mainly designed for the flame retardancy of polymer materials. There are many types of flame retardants, which can be divided into additive flame retardant and reactive flame retardant according to the use method.


Additive flame retardants are added to the polymer by mechanical mixing method to make the polymer have flame retardancy. At present, the additive flame retardants mainly include organic flame retardant and inorganic flame retardant, halogenated flame retardant (organic chloride and organic bromide) and non halogen. Organic flame retardants are represented by bromine series, phosphorus nitrogen series, nitrogen series, red phosphorus and compounds, while inorganic ones are mainly antimony trioxide, magnesium hydroxide, aluminum hydroxide, silicon series and other flame retardant systems.