Change in Micro-Morphology and Micro-Mechanical Properties of Thermally Modified Moso Bamboo
In recent years, saturated steam heat treatment has been considered as an environmentally friendly and cost-effective modification method compared with traditional heat treatment media. In this study, bamboo was treated by saturated steam, and the change in chemical composition, cellulose crystallin...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/3/646 |
| _version_ | 1797485153991262208 |
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| author | Tiancheng Yuan Yaqian Huang Tao Zhang Xinzhou Wang Yanjun Li |
| author_facet | Tiancheng Yuan Yaqian Huang Tao Zhang Xinzhou Wang Yanjun Li |
| author_sort | Tiancheng Yuan |
| collection | DOAJ |
| description | In recent years, saturated steam heat treatment has been considered as an environmentally friendly and cost-effective modification method compared with traditional heat treatment media. In this study, bamboo was treated by saturated steam, and the change in chemical composition, cellulose crystallinity index, micro-morphology, and micromechanical properties were analyzed by a wet chemistry method, Fourier transform infrared (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), nanoindentation, and so on. Results illustrated that the parenchyma cell walls were distorted due to the decomposition of hemicellulose and cellulose in bamboo samples. As expected, the hemicellulose and cellulose content decreased, whereas the lignin content increased significantly. In addition, the cellulose crystallinity index and thus the micromechanical properties of bamboo cell walls increased. For example, the hardness increased from 0.69 GPa to 0.84 GPa owing to the enhanced crystallinity index and lignin content. |
| first_indexed | 2024-03-09T23:15:37Z |
| format | Article |
| id | doaj.art-71d26766e76d437da86bfa2fda888f74 |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T23:15:37Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-71d26766e76d437da86bfa2fda888f742023-11-23T17:37:27ZengMDPI AGPolymers2073-43602022-02-0114364610.3390/polym14030646Change in Micro-Morphology and Micro-Mechanical Properties of Thermally Modified Moso BambooTiancheng Yuan0Yaqian Huang1Tao Zhang2Xinzhou Wang3Yanjun Li4Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, ChinaJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, ChinaIn recent years, saturated steam heat treatment has been considered as an environmentally friendly and cost-effective modification method compared with traditional heat treatment media. In this study, bamboo was treated by saturated steam, and the change in chemical composition, cellulose crystallinity index, micro-morphology, and micromechanical properties were analyzed by a wet chemistry method, Fourier transform infrared (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), nanoindentation, and so on. Results illustrated that the parenchyma cell walls were distorted due to the decomposition of hemicellulose and cellulose in bamboo samples. As expected, the hemicellulose and cellulose content decreased, whereas the lignin content increased significantly. In addition, the cellulose crystallinity index and thus the micromechanical properties of bamboo cell walls increased. For example, the hardness increased from 0.69 GPa to 0.84 GPa owing to the enhanced crystallinity index and lignin content.https://www.mdpi.com/2073-4360/14/3/646bamboosaturated steamnanoindentationmicro-mechanical properties |
| spellingShingle | Tiancheng Yuan Yaqian Huang Tao Zhang Xinzhou Wang Yanjun Li Change in Micro-Morphology and Micro-Mechanical Properties of Thermally Modified Moso Bamboo Polymers bamboo saturated steam nanoindentation micro-mechanical properties |
| title | Change in Micro-Morphology and Micro-Mechanical Properties of Thermally Modified Moso Bamboo |
| title_full | Change in Micro-Morphology and Micro-Mechanical Properties of Thermally Modified Moso Bamboo |
| title_fullStr | Change in Micro-Morphology and Micro-Mechanical Properties of Thermally Modified Moso Bamboo |
| title_full_unstemmed | Change in Micro-Morphology and Micro-Mechanical Properties of Thermally Modified Moso Bamboo |
| title_short | Change in Micro-Morphology and Micro-Mechanical Properties of Thermally Modified Moso Bamboo |
| title_sort | change in micro morphology and micro mechanical properties of thermally modified moso bamboo |
| topic | bamboo saturated steam nanoindentation micro-mechanical properties |
| url | https://www.mdpi.com/2073-4360/14/3/646 |
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