Function of flame retardant nylon filament

Flame retardant nylon filament has five action ways, which is also the reaction mechanism of flame retardant nylon:
1. Endothermic effect.
Under high temperature conditions, the flame retardant can strongly absorb the heat released during the combustion process, reduce the surface temperature of combustibles, and reduce the heat radiated to the combustion surface and free radicals,
So that the generation of combustible gases can be effectively suppressed and the spread of combustion can be prevented.
2. Coverage.
Flame retardant nylon fiber can form a foam like or glass like covering layer at high temperature, which can be used for heat preservation and oxygen isolation to prevent combustible gases from escaping outward, so as to achieve the purpose of flame retardance.
3. Inhibit chain reaction.
Flame retardant nylon filament can capture the free radicals in the combustion reaction in the gas-phase combustion area, inhibit the spread of flame, reduce the flame density, and terminate the combustion reaction.
4. Gas dilution effect.
The non combustible gases such as carbon dioxide, sulfur dioxide and nitrogen released by the flame-retardant nylon filament during the high-temperature decomposition process dilute the combustible gases produced by the cracking of the material to the combustion pole
Limit, or make the oxygen in the central part of the flame insufficient, so as to inhibit the continuous combustion. For example, halogen-containing flame retardants generate incombustible gas during heating and combustion
Hydrogen, thus diluting the surrounding air, can play a flame retardant role.
5. Condensed phase flame retardant.
Flame retardants can change the thermal cracking process of materials, promote the dehydration, condensation, cyclization, cross-linking and other reactions of materials until carbonization, increase the carbonization residue, and increase the combustible gas
The body is reduced, and the flame retardant effect is remarkable.