FILAMENTO PET RECICLADO PARA IMPRESSÃO 3D: UMA ANÁLISE SUSTENTÁVEL

Abstract

FDM 3D printing has emerged as a versatile and innovative technology, enabling the production of customized three-dimensional objects from plastic filaments. On the other hand, the overproduction of plastics is constantly growing in the country, as is the excessive disposal of plastic polymers in the environment, thus causing pollution in ecosystems. In this context, filament made from recycled PET emerges as a sustainable alternative, brings environmental benefits and contributes to a circular economy. Therefore, the approach to this topic has also been stimulated by the rise of the 3D market, which has developed great reach in recent years, both in the commercial and industrial areas and now has the possibility of producing with filaments from recycled material. In view of this, the research aimed to study the forecast for the transformation of polyethylene terephthalate into filament for 3D printers, as a low-cost raw material. Experiments were carried out using a small 3D printer extruder with a 2mm nozzle attached to it, which showed that some adjustments are still necessary in the heating process to melt the plastic threads and model them satisfactorily. Although still in development, this study has provided a base of knowledge and experience to improve the process of developing PET filament for use in 3D printers.