Evaluation of the use of fire retardants and its application in flame retardant packaging papers

Cellulose is a polysaccharide composed of glucose that is usually combined with hemicellulose, pectin and lignin. These organic materials are highly flammable, so traditional papers are highly flammable and burn easily. The aim of this study was to comprehensively introduce the use of fire retardant chemicals including borax (BX), boric acid (BA), alpha-x (AX) and ammonium polyphosphate (APP) as a fire retardant Used. The use of these compounds can increase the residue or charcoal and act as a thermal barrier to protect the material from external heat and prevent further combustion. FR has a relatively low melting point and forms glassy layers. Flame retardants containing phosphorus and nitrogen show excellent ignition resistance, as phosphorus accelerates the formation of a coal barrier against combustion, and nitrogen can enhance the diluting effect of ammonia. The presence of a flame retardant generally affects the process of thermal degradation of cellulose by increasing the total residual coal. Halogen and fire retardants are used commercially to improve the thermal insulation properties of fire retardants. Compared to the former, the latter is more environmentally friendly and safer because no toxic gases are produced during combustion.