Andrade Matheus de Prá, Ornaghi Heitor Luiz, Monticeli Francisco Maciel, Poletto Matheus, Zattera Ademir José
Postgraduate Program in Engineering of Processes and Technologies, University of Caxias do Sul, Caxias do Sul 95070-560, Brazil.
Department of Aerospace Structures and Materials, Faculty of Aerospace Engineering, Delft University of Technology, 2629 HS Delft, The Netherlands.
Polymers (Basel). 2024 Sep 20;16(18):2651. doi: 10.3390/polym16182651.
Wood is a versatile material extensively utilized across industries due to its low density, favorable mechanical properties, and environmental benefits. However, despite considerable research, the diversity in species with varying compositions and properties remains insufficiently explored, particularly for native woods. A deeper understanding of these differences is crucial for optimizing their industrial applications. This study investigated the composition, tensile strength, flexural strength, Young's modulus, bending stiffness and elongation at break, thermal behavior, and viscoelastic properties of three Brazilian native wood species: (ARA), (DOD), and (TOC). The density of these woods showed a linear correlation with mechanical properties such as Young's modulus (0.9) and flexural modulus (0.9). The research revealed a linear correlation between the woods' density and mechanical properties, with lignin content emerging as a key determinant of thermal stability. This study highlights the importance of understanding wood species' composition and physical properties, and provides valuable insights into their behavior.
木材是一种用途广泛的材料，因其低密度、良好的机械性能和环境效益而在各个行业中得到广泛应用。然而，尽管进行了大量研究，但对于具有不同成分和特性的木材种类的多样性，尤其是本土木材，仍未得到充分探索。深入了解这些差异对于优化其工业应用至关重要。本研究调查了三种巴西本土木材的成分、拉伸强度、弯曲强度、杨氏模量、弯曲刚度和断裂伸长率、热行为和粘弹性特性：（ARA）、（DOD）和（TOC）。这些木材的密度与杨氏模量（0.9）和弯曲模量（0.9）等机械性能呈线性相关。研究表明，木材密度与机械性能之间存在线性关系，木质素含量是热稳定性的关键决定因素。本研究强调了了解木材种类成分和物理特性的重要性，并为其行为提供了有价值的见解。
