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公开(公告)号:US11554514B2
公开(公告)日:2023-01-17
申请号:US17408695
申请日:2021-08-23
发明人: Liangbing Hu , Mingwei Zhu , Jianwei Song
IPC分类号: B32B21/13 , B27K5/06 , B01D11/02 , B27K3/02 , B27K3/16 , B27K3/20 , B27K3/36 , B27K3/38 , B27K3/48 , B32B7/12 , D21C3/02 , D21C3/12 , D21C9/00
摘要: A super strong and tough densified wood structure is formed by subjecting a cellulose-based natural wood material to a chemical treatment that partially removes lignin therefrom. The treated wood retains lumina of the natural wood, with cellulose nanofibers of cell walls being aligned. The treated wood is then pressed in a direction crossing the direction in which the lumina extend, such that the lumina collapse and any residual fluid within the wood is removed. As a result, the cell walls become entangled and hydrogen bonds are formed between adjacent cellulose nanofibers, thereby improving the strength and toughness of the wood among other mechanical properties. By further modifying, manipulating, or machining the densified wood, it can be adapted to various applications.
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公开(公告)号:US11578894B2
公开(公告)日:2023-02-14
申请号:US17029414
申请日:2020-09-23
发明人: Liangbing Hu , Mingwei Zhu , Yiju Li , Chaoji Chen , Tian Li , He Liu , Amy Gong , Yudi Kuang
IPC分类号: F24S10/80 , F04B17/00 , B01D17/04 , C02F1/28 , E02B15/10 , C02F101/32 , C02F103/36 , C02F1/14 , C02F1/04 , B01D1/00 , B05D7/06 , F04B19/00 , F24S10/95 , F24S10/90 , B01D5/00 , F24S70/10 , F04B19/16 , C02F103/08 , C02F103/00
摘要: Solar thermal devices are formed from a block of wood, where the natural cell lumens of the wood form an interconnected network that transports fluid or material therein. The block of wood can be modified to increase absorption of solar radiation. Combining the solar absorption effects with the natural transport network can be used for various applications. In some embodiments, heating of the modified block of wood by insolation can be used to evaporate a fluid, for example, evaporating water for extraction, distillation, or desalination. In other embodiments, heating of the modified block of wood by insolation can be used to change transport properties of a material to allow it to be transported in the interconnected network, for example, heating crude oil to adsorb the oil within the block of wood.
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公开(公告)号:US11130256B2
公开(公告)日:2021-09-28
申请号:US16604005
申请日:2018-04-09
发明人: Liangbing Hu , Mingwei Zhu , Jianwei Song
IPC分类号: B32B21/13 , B27K5/06 , B01D11/02 , B27K3/02 , B27K3/16 , B27K3/20 , B27K3/36 , B27K3/38 , B27K3/48 , B32B7/12 , D21C3/02 , D21C3/12 , D21C9/00
摘要: A super strong and tough densified wood structure is formed by subjecting a cellulose-based natural wood material to a chemical treatment that partially removes lignin therefrom. The treated wood retains lumina of the natural wood, with cellulose nanofibers of cell walls being aligned. The treated wood is then pressed in a direction crossing the direction in which the lumina extend, such that the lumina collapse and any residual fluid within the wood is removed. As a result, the cell walls become entangled and hydrogen bonds are formed between adjacent cellulose nanofibers, thereby improving the strength and toughness of the wood among other mechanical properties. By further modifying, manipulating, or machining the densified wood, it can be adapted to various applications.
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公开(公告)号:US20210088252A1
公开(公告)日:2021-03-25
申请号:US17029414
申请日:2020-09-23
发明人: Liangbing Hu , Mingwei Zhu , Yiju Li , Chaoji Chen , Tian Li , He Liu , Amy Gong , Yudi Kuang
IPC分类号: F24S10/80 , C02F1/14 , C02F1/04 , B01D1/00 , B05D7/06 , F04B19/00 , F24S10/95 , F24S10/90 , B01D5/00 , F24S70/10 , F04B17/00 , F04B19/16 , B01D17/04
摘要: Solar thermal devices are formed from a block of wood, where the natural cell lumens of the wood form an interconnected network that transports fluid or material therein. The block of wood can be modified to increase absorption of solar radiation. Combining the solar absorption effects with the natural transport network can be used for various applications. In some embodiments, heating of the modified block of wood by insolation can be used to evaporate a fluid, for example, evaporating water for extraction, distillation, or desalination. In other embodiments, heating of the modified block of wood by insolation can be used to change transport properties of a material to allow it to be transported in the interconnected network, for example, heating crude oil to adsorb the oil within the block of wood.
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公开(公告)号:US20200223091A1
公开(公告)日:2020-07-16
申请号:US16604005
申请日:2018-04-09
发明人: Liangbing Hu , Mingwei Zhu , Jianwei Song
IPC分类号: B27K5/06 , D21C3/02 , D21C3/12 , D21C9/00 , B01D11/02 , B32B7/12 , B32B21/13 , B27K3/02 , B27K3/48 , B27K3/36 , B27K3/20 , B27K3/38 , B27K3/16
摘要: A super strong and tough densified wood structure is formed by subjecting a cellulose-based natural wood material to a chemical treatment that partially removes lignin therefrom. The treated wood retains lumina of the natural wood, with cellulose nanofibers of cell walls being aligned. The treated wood is then pressed in a direction crossing the direction in which the lumina extend, such that the lumina collapse and any residual fluid within the wood is removed. As a result, the cell walls become entangled and hydrogen bonds are formed between adjacent cellulose nanofibers, thereby improving the strength and toughness of the wood among other mechanical properties. By further modifying, manipulating, or machining the densified wood, it can be adapted to various applications.
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