Effect of phosphorus/nitrogen/carbon component ratio in aqueous flame retardant on the fire prevention of wood substrate

Abstract Herein, various of aqueous halogen‐free flame retardants (FRs) were fabricated by controlling the weight ratio of phosphorus/nitrogen/carbon compounds. The prepared FRs showed good dispersion level at ambient conditions and easily adhering feature on the wood substrate. Owing to the synergi...

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Bibliographic Details
Published inJournal of applied polymer science Vol. 140; no. 40; pp. 1 - 9
Main Authors Du, Weining, Zhang, Zejiang, Li, Pingli, Li, Lijun, Huang, Hao, Yan, Mingqiang
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc 20.10.2023
Subjects
Carbon compounds
Fire prevention
Flame retardants
Forest fires
Materials science
Nitrogen
Phosphorus
Polymers
Substrates
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Summary:Abstract Herein, various of aqueous halogen‐free flame retardants (FRs) were fabricated by controlling the weight ratio of phosphorus/nitrogen/carbon compounds. The prepared FRs showed good dispersion level at ambient conditions and easily adhering feature on the wood substrate. Owing to the synergistic flame‐retardant effect of phosphorus/nitrogen/carbon compounds on wood, the FR1 coated wood (W‐FR1) could form non‐pores, compact, and continuous phospho‐carbonaceous layer under fire. Meanwhile, W‐FR1 exhibited a higher LOI (59.5%) and UL‐94 rating (V‐0). Moreover, the ignition time of W‐FR1 was significantly delayed from 35 to 570 s. Additionally, W‐FR1 showed 31.6% and 47.1% reductions in THR and TSP, respectively, 99.3% increment in char residue, as compared to the untreated wood. The present research offers a promising aqueous flame retardant for potential forest fire prevention.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.54500