Physical and Mechanical Properties of Wood- and Bamboo-Based Materials: 2nd Edition

A special issue of Forests (ISSN 1999-4907). This special issue belongs to the section "Wood Science and Forest Products".

Deadline for manuscript submissions: 30 September 2025 | Viewed by 1132

Special Issue Editors


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Guest Editor
College of Furnishings and Industrial Design, Nanjing Forestry University, Nanjing 210037, China
Interests: physical and mechanical properties; forming processing; modification and application
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Guest Editor
College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China
Interests: effecient utilization of bamboo; bamboo composite material; self-bonding; bamboo structure

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Guest Editor
Department of Wood Science & Engineering, College of Forestry, Oregon State University, Corvallis, OR 97331, USA
Interests: wood biodeterioration; wood composites; wood protection; fungal pigments; adhesives; weathering
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Wood and bamboo represent significant biomass materials with an extensive historical legacy of application in human civilization. Products derived from wood and bamboo find widespread utility across sectors, including construction, home furnishings, transportation and other realms, intimately intertwined with human production and daily existence. The specific performance requisites of wood- and bamboo-based materials are contingent upon their designated applications. These materials offer a series of merits, encompassing environmental sustainability, a remarkable strength-to-weight ratio, commendable seismic resilience, aesthetic appeal and facilitative processing characteristics, etc. Simultaneously, inherent to the nature of biomass materials, wood- and bamboo-based materials are not devoid of drawbacks, including variable dimensional stability, limited fire resistance and susceptibility to degradation.

Acknowledging the distinctive attributes of wood and bamboo, alongside the distinctive usage demands imposed by diverse contexts, various techniques, such as lamination gluing, reagent impregnation and softening treatments, have been employed for enhancement. These treatments are employed to achieve heightened dimensional stability, augmented strength, superior molding capabilities and enhanced processing performance, thereby broadening the spectrum of potential applications and prolonging their functional lifespan. In doing so, these endeavors leverage the carbon sequestration potential of wood and bamboo, contributing to the reduction in carbon dioxide emissions.

This Special Issue is poised to provide an avenue for scholars and stakeholders to remain at the vanguard of advancements in the field of the physical and mechanical properties of wood and bamboo. Those with an interest in the physical and mechanical attributes of wood and bamboo are cordially invited to collaborate and disseminate their latest accomplishments in this domain.

Dr. Xuehua Wang
Prof. Dr. Xiazhen Li
Dr. Sarath Vega Gutierrez
Guest Editors

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Keywords

  • wood- and bamboo-based materials
  • physical and mechanical properties
  • modification and application
  • microstructure

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Published Papers (2 papers)

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Research

12 pages, 3667 KiB  
Article
Influence of Tree Diameter and Height on the Physical and Mechanical Properties of Retrophyllum rospigliosii Wood
by Jorge Andrés Ramírez Correa, Adriana María Marín Vélez, Paola Torres-Andrade, Alejandra María Ramírez Arango and Fredy Javier López Molina
Forests 2025, 16(4), 593; https://doi.org/10.3390/f16040593 - 28 Mar 2025
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Abstract
Retrophyllum rospigliosii is a valuable conifer species from the Andean tropical forests, reaching diameters up to 2.5 m and heights of 45 m. Due to its high commercial demand and distinctive shape and size, its wood is highly sought after, leading to its [...] Read more.
Retrophyllum rospigliosii is a valuable conifer species from the Andean tropical forests, reaching diameters up to 2.5 m and heights of 45 m. Due to its high commercial demand and distinctive shape and size, its wood is highly sought after, leading to its classification as vulnerable on the IUCN Red List. This study evaluated the physical and mechanical properties of R. rospigliosii wood and how these properties vary according to tree diameter and height in plantation-grown specimens in the Cauca department, Colombia. Standard physical and mechanical tests followed international procedures to assess density, dimensional stability, and mechanical performance. The results showed stable wood density, with a basic wood density of 0.35 g/cm3, and a green density of 0.54 g/cm3. Volumetric shrinkage was 3.52% in the radial direction and 5.05% in the tangential direction, indicating good dimensional stability. Mechanical properties included a modulus of rupture (MOR) of 58.23 MPa, a modulus of elasticity (MOE) of 4702.23 MPa in static bending, and a compression strength of 54.08 MPa. Wood properties showed minimal variation across different diameter and height classes, indicating structural uniformity within the plantation. Given these characteristics, R. rospigliosii wood is suitable for non-structural applications such as furniture, moldings, and decorative items. Further studies should explore silvicultural strategies that enhance wood quality while ensuring sustainable management and conservation of this threatened species. Full article
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15 pages, 8201 KiB  
Article
The Effect of Alkali Treatment on the Mechanical Strength, Thermal Stability, and Water Absorption of Bamboo Fiber/PLA Composites
by Xiaoyang Fang, Xin Tao, Yuxi Xie, Wei Xu, Hongwu Guo and Yi Liu
Forests 2025, 16(1), 123; https://doi.org/10.3390/f16010123 - 10 Jan 2025
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Abstract
Alkali treatment is a prevalent method to enhance the interfacial compatibility of natural fiber-reinforced polymer composites (NFRPCs). Although the influence of alkali treatment on the properties of NFRPCs has been extensively investigated, previous studies have predominantly examined individual factors in isolation, leaving the [...] Read more.
Alkali treatment is a prevalent method to enhance the interfacial compatibility of natural fiber-reinforced polymer composites (NFRPCs). Although the influence of alkali treatment on the properties of NFRPCs has been extensively investigated, previous studies have predominantly examined individual factors in isolation, leaving the combined effects of alkali solution concentration, treatment temperature, and time relatively unexplored. In this study, an orthogonal experiment was conducted to assess the combined impacts of alkali solution (NaOH) concentration, treatment temperature, and time on the mechanical strength, thermal stability, and water absorption of bamboo fiber (BF)/polylactic acid (PLA) composites. The findings indicated that both the NaOH concentration and temperature exhibited a statistically significant effect (0.01 < p < 0.05) on the mechanical strength of BF/PLA composites, while the treatment time had no significant effect. Furthermore, all three factors had an extremely significant impact (p < 0.01) on the thermal stability of BF/PLA composites. The water absorption of BF/PLA composites was found to be significantly influenced by treatment temperature and time (p < 0.01), while no significant effect of NaOH concentration was observed. The optimal combination of alkali treatment parameters (concentration—5 wt%, temperature—25 °C, time—30 min) for BF/PLA composites was determined. Additionally, it was observed that the water absorption of alkali-treated BF/PLA composites was lower than that of untreated composites for shorter dipping times, but higher for prolonged dipping times. This work offers an important reference for the efficient application of alkali treatment to NFRPCs. Full article
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