Effect of wood species on thermal flow behavior and physical properties of thermoplastic moldings
| Autor: | Mariko Yamasaki, Isoko Takahashi, Takanori Sugimoto, Yasuo Takasu, Youji Kikata, Yasutoshi Sasaki |
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| Rok vydání: | 2011 |
| Předmět: |
chemistry.chemical_classification
Materials science Thermoplastic biology Softening point Forestry Wood flour Plant Science biology.organism_classification Industrial and Manufacturing Engineering Molding (decorative) chemistry.chemical_compound chemistry Flexural strength Lignin General Materials Science Hemicellulose Composite material Beech |
| Zdroj: | Wood Science and Technology. 46:419-429 |
| ISSN: | 1432-5225 0043-7719 |
| DOI: | 10.1007/s00226-011-0415-1 |
| Popis: | The thermoplastic flow behavior of cedar flour steamed at different temperatures in the range of 160–220°C was measured using a rheometer and compared with that of beech flour. The temperature at which the cedar flour starts to flow was approximately 70°C higher than that of beech flour, and the cedar flour exhibited low flowability. Furthermore, thermoplastic moldings were prepared from cedar and beech flours, and their physical properties were examined. Similar to the case of beech, a resin-like molding with a density of approximately 1.45 g/cm3 was obtained from the cedar flour steamed at 180°C or higher, and it was revealed by SEM observation that in these moldings wood flour particles adhere to each other. The specific bending strength was maximum for the moldings obtained from 180°C-steamed flour for both types of wood. |
| Databáze: | OpenAIRE |
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