Modification of Freezing Point for Hydrogel Extinguishant and Its Effect on Comprehensive Properties in Simulated Forest Fire Rescue
文献类型：期刊论文
| 作者 | Han, Ziwei; Chen, Peiyao; Hou, Meifang; Li, Qianqian; Su, Guijin ; Meng, Jing; Shi, Bin; Deng, Jie
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| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2022-01 |
| 卷号 | 14期号:2页码:752 |
| 关键词 | FLAME-RETARDANT WATER MIST GEL SUPPRESSION COMBUSTION AGENT |
| 英文摘要 | Hydrogels, as an emerging extinguishant, exhibit outstanding performance in forest fire rescues. However, the near-zero freezing point limits their application at low temperatures. Herein, a sensible candidate commercial extinguishant was selected for analysis, and its freezing point was modified based on the evaluation of water absorption rate, agglomeration, viscosity, and water dispersibility. Notably, the introduction of different antifreeze and flame retardant exhibited a significant disparate impact on the viscosity representative factor. Ten orthogonal experiments were performed to optimize the specific formulation. When ethylene glycol, urea and ammonium bicarbonate, and xanthan gum were applied as antifreeze, flame retardant, and thickener, with the addition amounts of 5 mL, 0.08 g and 0.04 g, and 0.12 g, respectively, the hydrogel extinguishant with 1% ratio in 50 mL of ultra-water featured the remarkable performance. Compared with the original extinguishant, the freezing point of the modified sample decreased from -0.3 to -9.2 degrees C. The sample's viscosity was improved from 541 to 1938 cP, and the flame retardance time was more than 120 s. The results of corrosion and biotoxicity show that the optimized hydrogel extinguishant satisfies the national standards. This understanding provides a deeper insight into the application of low-temperature extinguishants in forest fires. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47663]  |
| 专题 | 生态环境研究中心_环境纳米材料实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Nanotechnol & Hlth Effects, Beijing 100085, Peoples R China 2.Shanghai Inst Technol, Coll Ecol Technol & Engn, Shanghai 201400, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Tianjin Fire Res Inst MEM, Tianjin 300381, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Ziwei,Chen, Peiyao,Hou, Meifang,et al. Modification of Freezing Point for Hydrogel Extinguishant and Its Effect on Comprehensive Properties in Simulated Forest Fire Rescue[J]. SUSTAINABILITY,2022,14(2):752. |
| APA | Han, Ziwei.,Chen, Peiyao.,Hou, Meifang.,Li, Qianqian.,Su, Guijin.,...&Deng, Jie.(2022).Modification of Freezing Point for Hydrogel Extinguishant and Its Effect on Comprehensive Properties in Simulated Forest Fire Rescue.SUSTAINABILITY,14(2),752. |
| MLA | Han, Ziwei,et al."Modification of Freezing Point for Hydrogel Extinguishant and Its Effect on Comprehensive Properties in Simulated Forest Fire Rescue".SUSTAINABILITY 14.2(2022):752. |
入库方式： OAI收割
来源：生态环境研究中心
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