Wood Material Science and Engineering, 2025 (SCI-Expanded)
In this study, the physical, and mechanical properties of parallel strand lumber (PSL) produced using melamine formaldehyde adhesive and veneer from willow wood were investigated. According to the results of the study, a decrease in the moisture content of PSL was observed, while there was a significant increase in their density values. It was also found that the thermal insulation properties of PSL decreased compared to solid wood. Additionally, an increase in static bending strength and modulus of elasticity in bending was observed, while the dynamic bending strength exhibited the opposite trend. The screw withdrawal strength in the tangential and radial directions increased compared to the same type of solid wood, whereas the screw withdrawal strength on the end surface decreased in comparison to the same type of solid wood. The parallel to grain compression strength showed a marked increase compared to the same type of solid wood. In conclusion, the results indicate that the physical, and mechanical properties of the PSL produced in this study have improved, suggesting that this industrial lumber can be used in structural applications as both a load-bearing and covering material.