Structure, Mechanical Performance, and Dimensional Stability of Radiata Pine (Pinus radiata D. Don) Scrimbers
Natural wood has certain advantages such as good processability and high specific strength and thus has been used for millennium as a structural material. But the mechanical performance and water resistance, particularly for fast-growing species, are unsatisfactory for high-end applications. In this...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Polymer Technology |
| Online Access: | http://dx.doi.org/10.1155/2019/5209624 |
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| author | Jinguang Wei Fei Rao Yuxiang Huang Yahui Zhang Yue Qi Wenji Yu Chung-Yun Hse |
| author_facet | Jinguang Wei Fei Rao Yuxiang Huang Yahui Zhang Yue Qi Wenji Yu Chung-Yun Hse |
| author_sort | Jinguang Wei |
| collection | DOAJ |
| description | Natural wood has certain advantages such as good processability and high specific strength and thus has been used for millennium as a structural material. But the mechanical performance and water resistance, particularly for fast-growing species, are unsatisfactory for high-end applications. In this study, the “new-type” scrimber technology was introduced to radiata pine (Pinus radiata D. Don) scrimbers. The structure, mechanical properties, and dimensional stability of the scrimber panels were investigated. Results showed that OWFMs as basic units of scrimber had been very even in size and superior permeability. The scrimbers exhibited a three-dimensional porous structure, and the porosity had a decrease with increasing density. Both OWFMs and densification contributed to the high performance in terms of mechanical properties and water resistance. The flexural, compressive, and short-beam shearing strength were significantly enhanced with increasing density. As the density was 0.80 g cm−3, the flexural strength (MOR) was approximately 120 MPa, much larger than many selected wood-based panels. Moreover, the water resistance and dimensional stability also were closely related to the density. At the density of 1.39 g cm−3, the water absorption rate and thinness swelling rate of the panels in boiled water were only 19% and 5.7%, respectively. |
| format | Article |
| id | doaj-art-9ddd071e92b8476cb645b01b1fedcafd |
| institution | Kabale University |
| issn | 0730-6679 1098-2329 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Polymer Technology |
| spelling | doaj-art-9ddd071e92b8476cb645b01b1fedcafd2025-02-03T01:02:17ZengWileyAdvances in Polymer Technology0730-66791098-23292019-01-01201910.1155/2019/52096245209624Structure, Mechanical Performance, and Dimensional Stability of Radiata Pine (Pinus radiata D. Don) ScrimbersJinguang Wei0Fei Rao1Yuxiang Huang2Yahui Zhang3Yue Qi4Wenji Yu5Chung-Yun Hse6Scrimber Engineering and Technology Research Center of State Forestry Administration, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, ChinaScrimber Engineering and Technology Research Center of State Forestry Administration, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, ChinaScrimber Engineering and Technology Research Center of State Forestry Administration, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, ChinaScrimber Engineering and Technology Research Center of State Forestry Administration, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, ChinaScrimber Engineering and Technology Research Center of State Forestry Administration, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, ChinaScrimber Engineering and Technology Research Center of State Forestry Administration, Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, ChinaSouthern Research Station, USDA Forest Service, Pineville, LA 71360, USANatural wood has certain advantages such as good processability and high specific strength and thus has been used for millennium as a structural material. But the mechanical performance and water resistance, particularly for fast-growing species, are unsatisfactory for high-end applications. In this study, the “new-type” scrimber technology was introduced to radiata pine (Pinus radiata D. Don) scrimbers. The structure, mechanical properties, and dimensional stability of the scrimber panels were investigated. Results showed that OWFMs as basic units of scrimber had been very even in size and superior permeability. The scrimbers exhibited a three-dimensional porous structure, and the porosity had a decrease with increasing density. Both OWFMs and densification contributed to the high performance in terms of mechanical properties and water resistance. The flexural, compressive, and short-beam shearing strength were significantly enhanced with increasing density. As the density was 0.80 g cm−3, the flexural strength (MOR) was approximately 120 MPa, much larger than many selected wood-based panels. Moreover, the water resistance and dimensional stability also were closely related to the density. At the density of 1.39 g cm−3, the water absorption rate and thinness swelling rate of the panels in boiled water were only 19% and 5.7%, respectively.http://dx.doi.org/10.1155/2019/5209624 |
| spellingShingle | Jinguang Wei Fei Rao Yuxiang Huang Yahui Zhang Yue Qi Wenji Yu Chung-Yun Hse Structure, Mechanical Performance, and Dimensional Stability of Radiata Pine (Pinus radiata D. Don) Scrimbers Advances in Polymer Technology |
| title | Structure, Mechanical Performance, and Dimensional Stability of Radiata Pine (Pinus radiata D. Don) Scrimbers |
| title_full | Structure, Mechanical Performance, and Dimensional Stability of Radiata Pine (Pinus radiata D. Don) Scrimbers |
| title_fullStr | Structure, Mechanical Performance, and Dimensional Stability of Radiata Pine (Pinus radiata D. Don) Scrimbers |
| title_full_unstemmed | Structure, Mechanical Performance, and Dimensional Stability of Radiata Pine (Pinus radiata D. Don) Scrimbers |
| title_short | Structure, Mechanical Performance, and Dimensional Stability of Radiata Pine (Pinus radiata D. Don) Scrimbers |
| title_sort | structure mechanical performance and dimensional stability of radiata pine pinus radiata d don scrimbers |
| url | http://dx.doi.org/10.1155/2019/5209624 |
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