Flammability analysis of poly(ethylene terephthalate) and recycled PET with pyrolyzed filler

Abstract The future is the recovery of the filler and its reuse in hybrid materials. It is important that as a result of recycling, the filler does not lose its properties, but acquires new ones. The aim of this research work was to investigate the effect of filler recovered by pyrolysis on the flammability of poly(ethylene terephthalate) and recycled PET. It was important to obtain a flammability class higher or equal to the pure PET and RPET matrix. Flammability tests carried out using the UL94, LOI, and PCFC methods allowed perform a first characterization of the properties of materials during their combustion. These studies show that it becomes possible to give specific functional properties to recycled fillers.