Evaluation of the Degradation Process of Polyamide 12 Manufactured via Multi Jet Fusion: An FTIR Analysis

Resumo

This study investigated the effects of accelerated weathering on Polyamide 12 (PA12) manufactured by Multi Jet Fusion (MJF) technology, focusing on the chemical and structural changes of the material. The samples were exposed to UV-A radiation in an accelerated weathering chamber for 360, 720, and 1080 hours. To evaluate the degradation effect, characterization was performed by Fourier Transform Infrared Spectroscopy (FTIR), which revealed minor changes in the functional bands between 1500 cm⁻¹ and 1300 cm⁻¹, indicative of photo-oxidation. Visual analysis, in turn, revealed no cracks or surface deformations. This study contributes to the understanding of the structural modifications of PA12 and its durability in extreme environments, which is essential for critical applications in the oil and gas sector, where resistance to aging is fundamental. Future research will continue to evaluate the impacts of prolonged exposures on the material's properties.