Multi-micro-layered laminates have been developed as an effective fire barrier that significantly prolongs the heat transfer into an underlying substrate and hence decelerates its temperature increase which delays mechanical softening as well as onset of thermal degradation processes. The concept behind this is the transformation of the polymeric constituent of multi-micro-layered laminates (MMLL) into a gaseous product because of pyrolysis when exposed to fire. Due to layered structure these volatile gases are trapped within the laminates causing extensive delamination which consequently forms an effective insulation shield.
