What is the main role of flame retardant additives added to bird net materials?

Flame retardant additives added to bird net materials, as a key chemical component, will undergo endothermic reactions when heated, such as melting, decomposition or phase change, thereby absorbing a large amount of heat, effectively reducing the temperature of the combustion area, slowing down or preventing the transfer of heat, and making it difficult to maintain combustion.
During the combustion process, flame retardant additives will form a carbonized layer or foam layer covering the surface of the material. This covering can isolate oxygen, reduce the contact between combustible gas and oxygen, and reduce the efficiency of heat transfer, effectively inhibiting the further spread of the fire.
Certain components in flame retardant additives can capture or interrupt free radicals generated during the combustion process. These free radicals are the key to maintaining the combustion chain reaction. By inhibiting the generation and propagation of free radicals, the combustion rate can be effectively reduced, and even the combustion process can be terminated.
During the combustion process, flame retardant additives can reduce the generation of certain toxic gases (such as carbon monoxide, hydrogen cyanide, etc.), which often pose a serious threat to personnel in fires. By changing the type and amount of combustion products, flame retardant additives can significantly reduce the concentration of these harmful gases. Flame retardant additives can also reduce the formation and emission of smoke particles, reduce the density of smoke at the fire scene, improve the visibility of escape and rescue, and reduce the risk of suffocation caused by smoke.
The addition of flame retardant additives allows the bird-proof net material to maintain structural stability at higher temperatures, and is not easy to deform or melt, thereby improving the heat resistance and high temperature resistance of the material. By resisting the influence of environmental factors such as ultraviolet rays, moisture, acid and alkali, flame retardant additives help to extend the service life of the bird-proof net and maintain its long-term effective protective function. Some flame retardant additives can also improve the mechanical properties of the material, such as improving the strength and toughness of the material, making the bird-proof net more durable and not easy to be torn by birds or other external forces.