A top-down strategy for the preparation of flame retardant, robust, and transparent wood-derived films
Transparent wood is a promising material with many advantages, including high optical transmittance, adjustable optical haze, and excellent mechanical properties. However, the manufacture of transparent wood always requires polymer filling, which affects its sustainability; the flammability of trans...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422016908 |
| _version_ | 1797980785155768320 |
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| author | Lingyue Zhou Wenyan Guo Liren Zhang Wenbo Che Youming Yu |
| author_facet | Lingyue Zhou Wenyan Guo Liren Zhang Wenbo Che Youming Yu |
| author_sort | Lingyue Zhou |
| collection | DOAJ |
| description | Transparent wood is a promising material with many advantages, including high optical transmittance, adjustable optical haze, and excellent mechanical properties. However, the manufacture of transparent wood always requires polymer filling, which affects its sustainability; the flammability of transparent wood also limits its development and application in more fields. Herein, a flame retardant transparent wood film (FR-TWF) was prepared by a top-down chemical treatment. Delignification and TEMPO-mediated oxidation can effectively remove lignin from natural wood and introduce carboxyl groups into the cellulose for further chelation with Al ions. Then, FR-TWF was obtained through self-densification by forming fully collapsed wood cell walls and elastic lumen after drying. The obtained FR-TWF had high optical transmittance (∼76.1%) and haze (∼75.2%); its tensile strength reached 354.3 MPa, exceeding most existing plastic films. Compared with natural wood, the peak of heat release rate and total heat release of FR-TWF decreased by 91.4% and 77.1%, respectively. The excellent flame retardant property of FR-TWF is attributed to the generation of graphitized carbon layers during combustion and the release of more water vapor at high temperatures. Furthermore, the FR-TWF merits being price moderate, sustainable, and biodegradable, which can be widely used in flexible device substrates or optical management devices. |
| first_indexed | 2024-04-11T06:00:29Z |
| format | Article |
| id | doaj.art-0f23fa1e0d9148c78c49fe1eb9586c80 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-11T06:00:29Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-0f23fa1e0d9148c78c49fe1eb9586c802022-12-22T04:41:42ZengElsevierJournal of Materials Research and Technology2238-78542022-11-012135943603A top-down strategy for the preparation of flame retardant, robust, and transparent wood-derived filmsLingyue Zhou0Wenyan Guo1Liren Zhang2Wenbo Che3Youming Yu4College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, 311300, ChinaCollege of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, 311300, ChinaCollege of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, 311300, ChinaCorresponding author.; College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, 311300, ChinaCorresponding author.; College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, 311300, ChinaTransparent wood is a promising material with many advantages, including high optical transmittance, adjustable optical haze, and excellent mechanical properties. However, the manufacture of transparent wood always requires polymer filling, which affects its sustainability; the flammability of transparent wood also limits its development and application in more fields. Herein, a flame retardant transparent wood film (FR-TWF) was prepared by a top-down chemical treatment. Delignification and TEMPO-mediated oxidation can effectively remove lignin from natural wood and introduce carboxyl groups into the cellulose for further chelation with Al ions. Then, FR-TWF was obtained through self-densification by forming fully collapsed wood cell walls and elastic lumen after drying. The obtained FR-TWF had high optical transmittance (∼76.1%) and haze (∼75.2%); its tensile strength reached 354.3 MPa, exceeding most existing plastic films. Compared with natural wood, the peak of heat release rate and total heat release of FR-TWF decreased by 91.4% and 77.1%, respectively. The excellent flame retardant property of FR-TWF is attributed to the generation of graphitized carbon layers during combustion and the release of more water vapor at high temperatures. Furthermore, the FR-TWF merits being price moderate, sustainable, and biodegradable, which can be widely used in flexible device substrates or optical management devices.http://www.sciencedirect.com/science/article/pii/S2238785422016908WoodTransparent filmSelf-densificationMechanical propertiesFlame retardant |
| spellingShingle | Lingyue Zhou Wenyan Guo Liren Zhang Wenbo Che Youming Yu A top-down strategy for the preparation of flame retardant, robust, and transparent wood-derived films Journal of Materials Research and Technology Wood Transparent film Self-densification Mechanical properties Flame retardant |
| title | A top-down strategy for the preparation of flame retardant, robust, and transparent wood-derived films |
| title_full | A top-down strategy for the preparation of flame retardant, robust, and transparent wood-derived films |
| title_fullStr | A top-down strategy for the preparation of flame retardant, robust, and transparent wood-derived films |
| title_full_unstemmed | A top-down strategy for the preparation of flame retardant, robust, and transparent wood-derived films |
| title_short | A top-down strategy for the preparation of flame retardant, robust, and transparent wood-derived films |
| title_sort | top down strategy for the preparation of flame retardant robust and transparent wood derived films |
| topic | Wood Transparent film Self-densification Mechanical properties Flame retardant |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422016908 |
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