What kinds of flame retardants have been added? What are their advantages and disadvantages?

Flame retardants can be divided into organic flame retardants and inorganic flame retardants. Organic flame retardants are mainly divided into chlorine, bromine and phosphorus. Inorganic flame retardants include aluminum hydroxide and magnesium hydroxide.

Organic flame retardants can be divided into halogen flame retardants and halogen-free flame retardants. Halogen flame retardant has the advantages of low dosage, high flame retardant efficiency and wide adaptability, but its serious disadvantage is that it will produce a lot of smoke and toxic and corrosive gases when burning, which is very harmful. Halogen-free flame retardant does not contain halogen cable, which has good flame retardant effect and low smoke and toxicity of gas generated during thermal decomposition.

Inorganic flame retardant has high decomposition temperature, which not only has flame retardant effect, but also can inhibit the generation of smoke and hydrogen chloride. Among them, aluminum hydroxide is a kind of flame retardant, which has three functions: flame retardant, smoke suppression and filling. It is non-toxic, non-corrosive, stable, does not produce toxic gas at high temperature, and has low price and wide sources. Magnesium hydroxide decomposes between 340℃ and 490℃. Good thermal stability, good flame retardant and smoke suppression effect, especially suitable for processing high temperature polyolefin plastics.