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Flame Retardant Cellulose-Based Hybrid Hydrogels for Firefighting and Fire Prevention.
- Source :
- Fire Technology; Jul2022, Vol. 58 Issue 4, p2077-2091, 15p
- Publication Year :
- 2022
-
Abstract
- Wildfires have been recognized as a natural incident in some forests, however, fire season is now more severe and extensive, even in tropical rainforests in which fire could have damaging impacts. A hydrogel is a 3-D polymeric structure encompassing cross-linked and hydrophilic macromolecules. In comparison with water, hydrogels have shown some superiorities in terms of water-binding, cooling, and sealing, which make them be applied in forest fire prevention programs for improving fire-extinguishing performance. In this study, an environmentally friendly phosphorus-modified methylcellulose/silica hybrid hydrogel was prepared based on the modified methylcellulose by 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide–itaconic acid (DOPO-ITA) and silica nanoparticles. In the fire prevention experiments, the grass treated with the methylcellulose@DOPO-ITA@silica hybrid hydrogel shows self-extinguishing behavior, whereas those treated with ordinary water or methylcellulose hydrogel can be easily ignited after one week. In the firefighting experiments, the methylcellulose@DOPO-ITA@silica hybrid hydrogel displays a much shorter extinguishing time and lower consumption volume than ordinary water and the methylcellulose@DOPO-ITA hydrogel. This work presents an environmentally friendly, non-toxic, and biodegradable cellulose-based hybrid hydrogel for the fire prevention and firefighting of wildfires. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00152684
- Volume :
- 58
- Issue :
- 4
- Database :
- Complementary Index
- Journal :
- Fire Technology
- Publication Type :
- Academic Journal
- Accession number :
- 158136478
- Full Text :
- https://doi.org/10.1007/s10694-022-01237-y