Effect of the proportion extruded r PET in filament

In Mexico, PET is the main source of contamination from soils to water sources. The urban waste reuse strategy is part of the goals set out in the Sustainable Development Goals in the 2030 agenda. The circular economy encourages the valuation of waste reuse such as PET from urban post-consumer bottles. PET is a very abundant waste material and could have potential for 3-D printing. However, PET undergoes hydrolytic degradation and stiffness at changing cooling temperatures promoting non-flowability of the material during extrusion. On the other hand, PP is a lightweight, flexible polymer with high impact resistance. For these reasons, the present work aims to formulate mixtures of r-PET/v-PP (10,30 and 50%) from PET waste in post-consumer bottles, extruded in filament (3mm diameter) to study the density, crystalline structure, and instantaneous plastic deformation by impact test in order to increase the flowability of PET in the extrusion and decrease the fragility in the cooling process in the filament.