Flame retardant is a kind of functional additives that can effectively prevent the combustion of polymer materials and resist the generation of smoke and toxic and harmful gases. At present, the variety with high cost performance is bromine flame retardant (BFR). Brominated flame retardants are one of the organic flame retardants with large output, large consumption and high flame retardant efficiency in the world. In recent years, with the rapid development of synthetic materials, synthetic plastics, rubber and fibers are more and more used in various departments of the national economy and people's production and life. At the same time, the fire caused by the ignition of high polymers is also increasing greatly.

Bromine flame retardants have high flame retardant efficiency, wide application range, good heat resistance and excellent hydrolysis stability. They can meet the requirements of a variety of polymer processing processes and flame retardant products, with sufficient source of raw materials, mature manufacturing process and low price. In particular, polymeric brominated flame retardants have unique advantages. Polymeric brominated flame retardants are polymer additives, which have good compatibility with polymers, excellent photothermal stability, good fluidity and good process adaptability; Polyhalodibenzo dioxane and polyhalodibenzo furan will not be produced during combustion. It is non-toxic, including its end application products. There are no prohibition regulations in the world; It is easier to form thin-walled and complex products, which is conducive to shorten the forming cycle and improve the production efficiency; Recyclable and reusable; It can reach the very strict flame retardant standard UL94, V-0. In addition, by controlling the degree of polymerization, the molecular weight of oligomers can be effectively controlled to form oligomers with different softening temperatures to meet the needs of different substrates.