1, containing halogen flame retardants containing Cl, Br, F elements such as PP flame retardants, halogen-free flame retardants series including phosphorus flame retardants and inorganic flame retardant magnesium hydroxide, aluminum hydroxide, zinc borate, halogen-free flame retardants also include expansion type flame retardant flame retardant and some special purpose.

2, containing halogen flame retardants is flame retardant used in plastics and rubber materials at present most of flame retardant products, mainly for the organic fire retardant agent and chemical inert, compatibility with plastic is better, good flame retardant effect, use cost low, many features are irreplaceable by other flame retardants.

3, eu directive thought to contain halogen flame retardants of bromine biphenyl ether from the burning dioxin and five bromine biphenyl ether (carcinogens), on it is prohibited to use directory, ten bromine biphenyl ether also because of the controversial as flame retardant is not recommended. But most of the bromide flame retardants have not been completely bans the use, in fact now is hard to find a completely replace the real products.

4, as for harm, sometimes seem to be alarmist, our country without the use of ten bromine biphenyl ether flame retardants. Its harmfulness is not so terrible, as the legendary flame retardants of nature compared to the people of the dangers of fire. Inorganic flame retardants, the main varieties are aluminum hydroxide, magnesium hydroxide, red phosphorus, antimony oxide, molybdenum oxide, ammonium molybdate, zinc borate, zinc oxide, zirconium oxide, zirconium hydroxide, etc., not only can this kind of fire retardants, can also play a role to fill, environmental protection performance is good, get more and more used.