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In this study, we presented a novel fire alarm device based on poly (vinyl alcohol) (PVA)/silver nitrate (AgNO3) composite embedded in the structural template of melamine (ME) sponge. By using water as a benign solvent, the chelated PVA/AgNO3 hybrid solution was absorbed into ME sponge, and then the ultralight ME monolith containing PVA/AgNO3 was obtained after removing the solvent. When exposed to...
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