According to the results of the above research, it can be concluded that the fire retardant mechanism of melamine cyanurate on nylon is a relatively complicated process. It is not only the physical effect of sublimation heat absorption and accelerated dripping, but more importantly it can change the thermal oxygen degradation process of nylon It can be quickly carbonized to form non-combustible carbon. These carbon materials cover the surface of the nylon substrate to form a barrier layer due to expansion and foaming, which blocks the contact between nylon and air and the escape of combustible materials, which can effectively prevent it. Continuous burning of nylon. At the same time, the expansion layer formed by the expansion of the non-combustible gas caused by the decomposition of the material can greatly reduce the thermal conductivity, which is conducive to the material's self-extinguishing from the fire. Therefore, melamine cyanurate has both physical and chemical fire retardant effects on the flame retardance of nylon.

Flame retardant masterbatch(bromine))PPV2 M_1023PP