Analysis of the market consumption of brominated flame retardants shows that although brominated flame retardants are facing some environmental protection pressures, they will still be produced and used in many countries within a certain period of time. Flame retardant with good development prospects. This article describes the characteristics and flame retardant mechanism of bromine-based environmentally friendly flame retardants, and focuses on the development and application of brominated flame retardant products and flame retardant technologies in flame retardant systems. Aiming at the problems in the use of brominated flame retardants, a new research direction was proposed, and the future development trend of brominated flame retardants was predicted.

Flame retardant is an additive that can reduce or inhibit the flammability of polymer materials. It is used to improve the flame resistance of materials. It is mainly used to prevent synthetic and natural polymer materials from being ignited and to suppress flame propagation. There are many types of flame retardants. According to different classifications, they can be divided into two categories: reactive flame retardants and additive flame retardants. The former refers to flame retardants formed by chemical reaction with other components in the substrate, or monomers of the polymer, or as auxiliary agents to participate in the synthesis of the polymer, and finally become the structural unit of the polymer, Mostly used for thermosetting polymers; the latter refers to being physically dispersed in the substrate, mostly used for thermoplastic polymers. According to different types of flame retardant elements, flame retardants can often be divided into halogen, organic phosphorus and halogen-phosphorus, nitrogen, phosphorus-nitrogen, antimony, aluminum-magnesium, inorganic phosphorus, boron, and aluminum. It can be divided into organic flame retardants and inorganic flame retardants according to their properties. Organic flame retardants include halogen (bromide and chlorine), organic phosphorus (halogen-phosphorus, phosphorus-nitrogen) ) And nitrogen-based, inorganic flame retardants include antimony-based, aluminum-magnesium-based, inorganic phosphorus-based, boron-based, aluminum-based, and the like. An ideal flame retardant should have high flame retardant efficiency, good thermal stability, good light stability, good compatibility with the flame retardant substrate, itself low toxicity or substantially non-toxic, toxic and corrosive when generated The amount of gas and smoke is as small as possible, the raw materials are easy to obtain, and the process is simple. However, in reality, many flame retardants are currently difficult to meet the ideal requirements. In recent years, the pursuit of high-toxicity, low-smoke, and dust-free flame retardants has become an important subject and the main direction of development in the field of flame retardant.