Flame retardancy of bio-based polyether-block-amide polymer (PEBAX)

It is shown that the material containing only melamine is protected through a gas phase mechanism. Thereby melamine and its degradation products protect the material through a gas phase mechanism. The replacement of 4 wt% melamine by cloisite results an additional protection of the material via condensed phase mechanism. A char layer, that acts as a physical barrier is formed during combustion. Concurrently, melamine and its degradation products act in the gas phase.