Moisture migration analysis of laminated veneer lumber based on low field nuclear magnetic resonance
Moisture migration is an important factor affecting the performance and durability of laminated veneer lumber (LVL), a common packaging material. In this paper, we used low-field nuclear magnetic resonance (LF-NMR) and magnetic resonance imaging (MRI) technology to investigate the moisture migration...
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| Format: | Article |
| Language: | English |
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Maximum Academic Press
2024-01-01
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| Series: | Food Materials Research |
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| Online Access: | https://www.maxapress.com/article/doi/10.48130/fmr-0023-0038 |
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| author | Yingying Zhu Jun Yan Shuilong Lu Wenqing Ouyang Shanwen Li Zhanxiu Chen Shengbao Feng Zhong Li |
| author_facet | Yingying Zhu Jun Yan Shuilong Lu Wenqing Ouyang Shanwen Li Zhanxiu Chen Shengbao Feng Zhong Li |
| author_sort | Yingying Zhu |
| collection | DOAJ |
| description | Moisture migration is an important factor affecting the performance and durability of laminated veneer lumber (LVL), a common packaging material. In this paper, we used low-field nuclear magnetic resonance (LF-NMR) and magnetic resonance imaging (MRI) technology to investigate the moisture migration of LVL during water absorption and drying. The results showed that as LVL absorbed water, the signals of both strongly and weakly bound water in the pores increased significantly with time until the samples were fully saturated, and the NMR signals did not change much. The drying process of LVL started with a significant decrease of weakly bound water signals, followed by a gradual decrease of strongly bound water signals until the moisture content in the samples had completely evaporated. MRI was used to observe the water distribution during the water absorption and drying process and found that the visual images were consistent with the quantified NMR spectral results. We also found a linear relationship between the NMR signal and the water mass, and a high correlation between the NMR and weighing results. Our results demonstrated that the combination of LF-NMR relaxation technology and MRI technology is an effective method to analyze the moisture distribution and migration for LVL laminates. |
| format | Article |
| id | doaj-art-37718a92e2514beaacc3af3d4e64bf3c |
| institution | OA Journals |
| issn | 2771-4683 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Maximum Academic Press |
| record_format | Article |
| series | Food Materials Research |
| spelling | doaj-art-37718a92e2514beaacc3af3d4e64bf3c2025-08-20T02:12:30ZengMaximum Academic PressFood Materials Research2771-46832024-01-01411710.48130/fmr-0023-0038fmr-0023-0038Moisture migration analysis of laminated veneer lumber based on low field nuclear magnetic resonanceYingying Zhu0Jun Yan1Shuilong Lu2Wenqing Ouyang3Shanwen Li4Zhanxiu Chen5Shengbao Feng6Zhong Li7Engineering Research Center of Magnetic Resonance Analysis Technology, Department of Food Nutrition and Test, Suzhou Vocational University, Suzhou 215104, Jiangsu, ChinaSuzhou Testniumag Ltd., Suzhou 215163, Jiangsu, ChinaQinghai Huzhu TianyouDe Highland Barley Spirit Co., Ltd., Haidong 810500, Qinghai, ChinaEngineering Research Center of Magnetic Resonance Analysis Technology, Department of Food Nutrition and Test, Suzhou Vocational University, Suzhou 215104, Jiangsu, ChinaQinghai Huzhu TianyouDe Highland Barley Spirit Co., Ltd., Haidong 810500, Qinghai, ChinaQinghai Huzhu TianyouDe Highland Barley Spirit Co., Ltd., Haidong 810500, Qinghai, ChinaQinghai Huzhu TianyouDe Highland Barley Spirit Co., Ltd., Haidong 810500, Qinghai, ChinaNanjing Forestry University, Natl Engn Res Ctr Biomat, Nanjing 210037, Jiangsu, ChinaMoisture migration is an important factor affecting the performance and durability of laminated veneer lumber (LVL), a common packaging material. In this paper, we used low-field nuclear magnetic resonance (LF-NMR) and magnetic resonance imaging (MRI) technology to investigate the moisture migration of LVL during water absorption and drying. The results showed that as LVL absorbed water, the signals of both strongly and weakly bound water in the pores increased significantly with time until the samples were fully saturated, and the NMR signals did not change much. The drying process of LVL started with a significant decrease of weakly bound water signals, followed by a gradual decrease of strongly bound water signals until the moisture content in the samples had completely evaporated. MRI was used to observe the water distribution during the water absorption and drying process and found that the visual images were consistent with the quantified NMR spectral results. We also found a linear relationship between the NMR signal and the water mass, and a high correlation between the NMR and weighing results. Our results demonstrated that the combination of LF-NMR relaxation technology and MRI technology is an effective method to analyze the moisture distribution and migration for LVL laminates.https://www.maxapress.com/article/doi/10.48130/fmr-0023-0038laminated veneer lumbermoisturewater absorptiondryinglf-nmr |
| spellingShingle | Yingying Zhu Jun Yan Shuilong Lu Wenqing Ouyang Shanwen Li Zhanxiu Chen Shengbao Feng Zhong Li Moisture migration analysis of laminated veneer lumber based on low field nuclear magnetic resonance Food Materials Research laminated veneer lumber moisture water absorption drying lf-nmr |
| title | Moisture migration analysis of laminated veneer lumber based on low field nuclear magnetic resonance |
| title_full | Moisture migration analysis of laminated veneer lumber based on low field nuclear magnetic resonance |
| title_fullStr | Moisture migration analysis of laminated veneer lumber based on low field nuclear magnetic resonance |
| title_full_unstemmed | Moisture migration analysis of laminated veneer lumber based on low field nuclear magnetic resonance |
| title_short | Moisture migration analysis of laminated veneer lumber based on low field nuclear magnetic resonance |
| title_sort | moisture migration analysis of laminated veneer lumber based on low field nuclear magnetic resonance |
| topic | laminated veneer lumber moisture water absorption drying lf-nmr |
| url | https://www.maxapress.com/article/doi/10.48130/fmr-0023-0038 |
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