Effects of thermo-hydro-mechanical treatments on various physical and mechanical properties of poplar (Populus) wood
| Autor: | Ximing Wang, Zhangjing Chen, Lili Li, Sunguo Wang, Yali Shao |
|---|---|
| Přispěvatelé: | Sustainable Biomaterials |
| Rok vydání: | 2020 |
| Předmět: |
Physical properties
Environmental Engineering Materials science Mechanical properties Bioengineering Young's modulus Data compression ratio Treatment parameters Thermal treatment Heat treatment symbols.namesake Flexural strength Mechanical Treatments Densification symbols medicine Swelling medicine.symptom Composite material Waste Management and Disposal |
| Zdroj: | BioResources. 15:9596-9610 |
| ISSN: | 1930-2126 |
| DOI: | 10.15376/biores.15.4.9596-9610 |
| Popis: | Poplar (Populus) wood was subjected in this work to thermo-hydro-mechanical treatment. The influence of the treatment parameters on the physical and mechanical properties were investigated. The wood samples were densified under three compression ratios (0%, 30%, and 50%), and thermally treated at three temperatures (180 degrees C, 200 degrees C, and 220 degrees C), at three thermal treatment durations (3 h, 4 h, and 5 h). The density, modulus of elasticity, modulus of rupture, radial hardness, and thickness swelling were measured. The results showed that the densities of the samples increased by 36.6% to 49.7%. As the compression rate increased, the temperature, duration, modulus of elasticity, modulus of rupture, and hardness increased. However, the dimensions of the densified samples were less stable. Compared to the densified samples, the maximum thickness swelling could be reduced by 74% (from 29.7% to 7.8%) when subjected to a thermal treatment at 220 degrees C for 3 h. Science and Technology Projects of the Inner Mongolia Autonomous Region [201802031]; National Natural Science Foundation of the Inner Mongolia Autonomous Region [2019MS03059] The authors gratefully acknowledge the financial support from the Science and Technology Projects of the Inner Mongolia Autonomous Region (201802031) and the National Natural Science Foundation of the Inner Mongolia Autonomous Region (2019MS03059). |
| Databáze: | OpenAIRE |
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