Flame retardant science and technology is a science developed to meet the needs of social safety in production and life, prevent fires, and protect people's lives and property. Flame retardant is the application of flame retardant technology in real life. It is a special chemical additive used to improve the combustion performance of combustible and flammable materials. It is widely used in the flame retardant processing of various decoration materials. After being processed by a carpet flame retardant, the material can effectively prevent, delay or terminate the spread of flame when attacked by an external fire source, thereby achieving the flame retardant effect.

According to different classification standards, flame retardants can be divided into the following categories: 1. According to the contained flame retardant elements, the flame retardants can be divided into halogen flame retardants, phosphorus flame retardants, Nitrogen flame retardants, phosphorus-halogen flame retardants, phosphorus-nitrogen flame retardants and other categories. Halogen flame retardants decompose X? And HX which capture and transfer combustion free radicals during pyrolysis. HX can dilute the combustible gas generated during the cracking of combustible materials and block the contact between combustible gas and air. Phosphorous flame retardants produce phosphoric anhydride or phosphoric acid during the combustion process, which promotes the dehydration and carbonization of combustibles and prevents or reduces the generation of combustible gases. Phosphoric acid anhydride also forms a glass-like melt on the surface of combustible materials during pyrolysis, which promotes its oxidation to form carbon dioxide and plays a flame retardant role. In nitrogen-based flame retardants, nitrogen compounds and combustibles can promote cross-linking to carbon, reduce the decomposition temperature of combustibles, and produce non-combustible gases to dilute the combustible gases. Phosphorus-halogen flame retardants and phosphorus-nitrogen flame retardants mainly achieve the flame retardant purpose through the synergistic effect of phosphorus-halogen and phosphorus-nitrogen. It has the dual effects of phosphorus-halogen and phosphorus-nitrogen and has a better flame retardant effect. .