20.500.12556/RUL-164939 Changes in wood durability due to leaching of biologically active substances (extractives) resulting from weathering Wood durability is vital for its long-term performance in outdoor applications, influenced by various factors. This study investigates the impact of leaching biologically active substances due to weathering on wood durability. The research covers multiple wood species and treated wood subjected to natural and accelerated weathering. Chemical analysis includes extraction, spectrophotometry (UV-Vis), chromatography (HPLC), Fourier Transform Infrared Spectroscopy (FTIR), and X-ray fluorescence spectroscopy (XRF). Additionally, fungal and wetting ability tests were conducted. Results indicate significant extractive leaching during weathering. However, the part of the extractives with the highest biological activity, i.e. the phenolic compounds, were slightly less susceptible to leaching than other extractives. While FTIR analysis suggests minimal degradation of other wood compounds, accelerated weathering induced notable extractive loss. Weathering adversely affected inherent durability and wetting ability, leading to reduced relative resistance dose according to the Meyer-Veltrup model. Black locust exhibited the least reduction, while pine heartwood showed the highest decrease in resistance dose. Paste tests revealed fungicidal components' contribution to wood durability, indicating its multifaceted nature. This comprehensive study sheds light on the intricate dynamics between weathering, extractive leaching, and wood durability, offering insights crucial for optimizing wood treatment and preservation methods in outdoor environments. outdoor use extractives phenolic compounds fungal decay water performance inhibitory effect uporaba na prostem ekstraktivi fenolne spojine glivni razkroj sorpcijske lastnosti zaviralni učinek true false true Angleški jezik Slovenski jezik Članek v reviji 2024-11-18 11:22:33 2024-11-18 11:22:41 2025-11-25 04:32:49 0000-00-00 00:00:00 2024 0 0 18 str. Vol. 21, art. e03921 2024 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 0000-00-00 630*8 2214-5095 10.1016/j.cscm.2024.e03921 215352835 1-s2.0-S2214509524010726-main.pdf 1-s2.0-S2214509524010726-main.pdf 1 C38001140E769741C5F3D3230C147601 ea09b33e99782a1e9ddcfe82533060f0d96a89ce8a00cd1ce192acda1cdf068d fe2777f0-c917-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=222420 https://www.sciencedirect.com/science/article/pii/S2214509524010726 1 a9f7610f-a596-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=195790 Biotehniška fakulteta 0 0 0