Desenvolvimento e caracterização das blendas PET/PC proveniente de material reciclado

Abstract

This work was the development and characterization of polymer blends using poly (ethylene terephthalate) PET and polycarbonate (PC), both recycled, recycling from primary and secondary, respectively. The formulation of pure PET, pure PC and its blends PET / PC, were extruded and subsequently injected, then were carried out mechanical tests (tensile, flexural and impact), thermo mechanical (HDT and VICAT), thermal (DSC) and morphological (SEM). After analysis, we found a small increase inelastic modulus in tension and elastic modulus in flexure, but there was a decrease in tension at maximum strength and impact resistance. HDT tests did not change significantly, unlike the VICAT; there was a considerable increase in thermal properties compared to pure PET and pure PC. Test was also carried out differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) and observed a partial miscibility of the blends and an increase in the fraction of crystallinity of PET.