Characterization of 3D printable Polyethylene Terephthalate Glycol composite filament reinforced with agricultural waste derived from pineapple plant

The aim of the current research is to develop a 3D printable PETG composite filament reinforced with pineapple fiber particulate (PALF-P). These filaments were produced using an extrusion technique, incorporating varying weight percentages (1.5%, 2.5%, 5%, and 7.5%) of PALF particles treated with a 5% NaOH chemical solution. Analytical techniques like Fourier Transform Infrared Spectroscopy (FTIR) and X-ray Diffraction (XRD) evaluated the impact of this treatment. A comprehensive study of the resulting composite filaments’ mechanical and physical attributes revealed improved cohesion between the PETG matrix and PALF particles, enhancing the overall properties. Specifically, the incorporation of 5 wt % PALF particles showed the highest ultimate tensile strength (53.54 ± 2.7 MPa), Young’s modulus (1443 ± 72.22 MPa), and load-bearing capacity (104.97 ± 5.25 N). In contrast, 2.5% of particles had the least noticeable effect on mechanical properties. Moreover, the developed sustainable composite filament showed significant promise in advancing bio-composites through additive manufacturing, potentially contributing to sustainable manufacturing practices.