Serendipity discovery of fire early warning function of chitosan film
Transparent chitosan (CS) film is prepared and its application in high temperature/fire warning is discussed. NaCl-doped chitosan (CS-NaCl) film shows excellent performance in real-time temperature monitoring and fire warning. The temperature warning of CS-NaCl film can be triggered under approximat...
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| Veröffentlicht in: | Carbohydrate polymers 2022-02, Vol.277, p.118884-118884, Article 118884 |
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| container_end_page | 118884 |
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| container_start_page | 118884 |
| container_title | Carbohydrate polymers |
| container_volume | 277 |
| creator | Wang, Yong Chen, Gongqing Yang, Fangzhou Luo, Zihao Yuan, Bihe Chen, Xianfeng Wang, Liancong |
| description | Transparent chitosan (CS) film is prepared and its application in high temperature/fire warning is discussed. NaCl-doped chitosan (CS-NaCl) film shows excellent performance in real-time temperature monitoring and fire warning. The temperature warning of CS-NaCl film can be triggered under approximately 50 °C, and it has a good repeatable warning performance under high-temperature conditions. The CS composite film exhibits an ultra-sensitive (0.4 s) warning under fire attacking. A possible electrical conduction and fire-alarm mechanisms are proposed. The addition of NaCl increases the number of charge carriers, which improves the ionic conductivity of the composite film. This study provides a possibility for the application of CS in the field of fire warning.
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| doi_str_mv | 10.1016/j.carbpol.2021.118884 |
| format | Article |
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| ispartof | Carbohydrate polymers, 2022-02, Vol.277, p.118884-118884, Article 118884 |
| issn | 0144-8617 1879-1344 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Chitosan Fire warning Proton conductive Sodium chloride |
| title | Serendipity discovery of fire early warning function of chitosan film |
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