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Phytic Acid-based NP Fire Retardant and its Effect on Combustion Property of Poplar Wood.
- Source :
-
BioResources . 2024, Vol. 19 Issue 1, p955-972. 18p. - Publication Year :
- 2024
-
Abstract
- To enhance the synergistic effect of phosphorus (P) and nitrogen (N) on flame retardant property, four different phytic acid-based NP flame retardants (FR-PAN) were manufactured using phytic acid and urea with various molar ratios, ranging from 1:3 to 1:12. The FR-PAN water solution was used to impregnate poplar wood under vacuum condition, and the thermal degradation performance of the FR-PAN treated wood were investigated. Compared to untreated wood, the PAN-6 (molar ratio is 1:6) group showed a reduction of 57.1% in total heat release and 80.0% in total smoke release. In the combustion, due to the introduction of P and N, FRPAN generates O=P/C-O/C-P/C-N bonds, forming highly graphitized char residues, which effectively isolate the entry of oxygen and heat and play a good protective role in the condensed phase. Morphological and chemical analysis of the residual char layer revealed that the introduction of P and N elements formed a more stable hybrid structure, significantly improving the thermal stability of the char layer. Among them, the PAN-6 group exhibited the highest char layer stability, indicating optimal synergistic effects of nitrogen and phosphorus under these conditions. [ABSTRACT FROM AUTHOR]
- Subjects :
- *WOOD
*FIREPROOFING agents
*ENTHALPY
*COMBUSTION
*CHAR
*PHYTIC acid
Subjects
Details
- Language :
- English
- ISSN :
- 19302126
- Volume :
- 19
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- BioResources
- Publication Type :
- Academic Journal
- Accession number :
- 175379586
- Full Text :
- https://doi.org/10.15376/biores.19.1.955-972