20.500.12556/RUL-189443 Thermally modified beech wood in polylactic acid filaments for 3D printing morphology of printed parts and dynamic mechanical analysis of injection-moulded specimens The production of biocomposites often aims to achieve environmental benefits by replacing traditional synthetic oil-based materials with components from renewable biological sources. In this study, filaments for 3D printing were produced from different mass fractions of beech wood (thermally modified and unmodified) and polylactic acid (PLA), used for specimens produced by 3D printing and injection moulding. Thermal modification (TM) of wood is a method often used to improve the hygroscopic properties of wood. Although TM has been used industrially for a few decades, its effects on incorporating modified wood particles into the PLA matrix are still poorly understood. This study aimed to evaluate the effects of TM beech wood on the morphology and encapsulation of wood particles in the PLA matrix, comparing thermally modified and unmodified beech wood. This interdisciplinary research involves the analysis of wood-PLA composite specimens to understand their composition, structure and mechanical properties. Four measurement methods were used: microscopy, surface roughness, dynamic mechanical analysis (DMA) and hyperspectral imaging (HSI). The results show that increasing wood content enhances the storage and loss modulus, while TM wood composites exhibit better surface quality, and enhanced dispersion. The glass transition temperature remained consistent, but decreased slightly with higher TM wood content. wood-PLA filament thermally modified wood hyperspectral imaging porosity lesno-plastični filamenti termično modificiran les hiperspektralno slikanje poroznost true false true Angleški jezik Slovenski jezik Članek v reviji 2026-10-07 09:12:19 2026-10-07 09:12:23 2026-10-09 03:36:06 0000-00-00 00:00:00 2026 0 0 Str. 2207–2215 no. 5 Vol. 21 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*8 1748-0280 10.1080/17480272.2025.2527188 242529027 Thermally_modified_beech_wood_in_polylactic_acid_filaments_for.pdf Thermally_modified_beech_wood_in_polylactic_acid_filaments_for.pdf 1 1B6616461741914A92144AD722F107C3 ed82b9d740f0da158d9cd1dd8cde936666231678451cdd54647d408e6e94e25b 73247036-c21e-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=249985 https://www.tandfonline.com/doi/full/10.1080/17480272.2025.2527188 0 9540acbd-c21e-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=249986 Biotehniška fakulteta Fakulteta za strojništvo 0 0 0