Publication Details
Abstract
This study investigates the physico-mechanical behavior of polymer composite materials based on recycled polyethylene terephthalate (PET) modified with calcium carbonate (CaCO3) as a mineral filler. The samples were prepared in accordance with standard testing requirements and evaluated under controlled conditions. The results revealed that the relative elongation at break decreased to 478,3%, indicating a 3,6-fold reduction compared to the reference material. In addition, Young’s modulus declined from 333,02 MPa to 319,37 MPa, while the stress at break showed a slight decrease from 6,37 MPa to 6,12 MPa. Despite these changes, the incorporation of CaCO3 contributed to improved structural uniformity and enhanced processability of the composite system. The obtained results confirm the potential of recycled PET-based composites for practical applications in construction and technical materials.