Synthesis of fire retardants based on N and P and poly(sodium silicate-aluminum dihydrogen phosphate) (PSADP) and testing the flame-retardant properties of PSADP impregnated poplar wood
Abstract
The development of fire retardants (FRs) is an approximative process of optimization. In this context, a novel water-soluble formulation with poly(sodium silicate-aluminum dihydrogen phosphate) (PSADP) has been developed, aiming at reduced hygroscopicity and enhanced leaching resistance of poplar wood in combination with nitrogen-phosphorus (NP) FR (FRNP). After treatment of wood with FRNP and PSADP in vacuum, the following data of the samples were determined: rate of hydroscopicity, leaching resistance, heat release rate (HRR), total HR (THR), effective combustion heat, mass loss, and concentration of flue gas. FR distribution in the wood’s inner surface was investigated by scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDXA). Results show that PSADP and FRNP have favorable synergistic effects on moisture resistance and flame retardance. Smoke density (SD) of NP and PSADP treated samples shows a significant reduction relative to that of NP. NP-PSADP treated samples form more char with carbon layers of higher density. At the same time, FRNP-PSADP is evenly distributed over the inner wood surfaces and penetrates the cell cavities of the poplar wood.
Acknowledgments
This study was supported by the Forestry Public Welfare Project Foundation of China (201404502, 201204704-6).
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©2016 by De Gruyter
Articles in the same Issue
- Frontmatter
- Original Articles
- Ferulates and lignin structural composition in cork
- Comparison of pulp species in IONCELL-P: selective hemicellulose extraction method with ionic liquids
- A novel and highly efficient polymerization of sulfomethylated alkaline lignins via alkyl chain cross-linking method
- Curing of wood treated with vinyl acetate-epoxidized linseed oil copolymer (VAc-ELO)
- Screening of juvenile Pinus radiata wood by means of Py-GC/MS for compression wood focussing on the ratios of p-hydroxyphenyl to guaiacyl units (H/G ratios)
- Characterization of adhesive penetration in wood bond by means of scanning thermal microscopy (SThM)
- Critical moisture conditions for fungal decay of modified wood by basidiomycetes as detected by pile tests
- Synthesis of fire retardants based on N and P and poly(sodium silicate-aluminum dihydrogen phosphate) (PSADP) and testing the flame-retardant properties of PSADP impregnated poplar wood
- Monitoring electrical properties of thermally modified wood as a possible tool for quality assessment
- Formation and properties of polyelectrolytes/TiO2 composite coating on wood surfaces through layer-by-layer assembly method
- The effect of temperature and moisture content on the fracture behaviour of spruce and birch
- A three-dimensional void reconstruction method for analyzing fractal dimensions of void volume in wood-strand composites
- Erratum
- Erratum to: Standard and non-standard deformation behaviour of European beech and Norway spruce during compression
Articles in the same Issue
- Frontmatter
- Original Articles
- Ferulates and lignin structural composition in cork
- Comparison of pulp species in IONCELL-P: selective hemicellulose extraction method with ionic liquids
- A novel and highly efficient polymerization of sulfomethylated alkaline lignins via alkyl chain cross-linking method
- Curing of wood treated with vinyl acetate-epoxidized linseed oil copolymer (VAc-ELO)
- Screening of juvenile Pinus radiata wood by means of Py-GC/MS for compression wood focussing on the ratios of p-hydroxyphenyl to guaiacyl units (H/G ratios)
- Characterization of adhesive penetration in wood bond by means of scanning thermal microscopy (SThM)
- Critical moisture conditions for fungal decay of modified wood by basidiomycetes as detected by pile tests
- Synthesis of fire retardants based on N and P and poly(sodium silicate-aluminum dihydrogen phosphate) (PSADP) and testing the flame-retardant properties of PSADP impregnated poplar wood
- Monitoring electrical properties of thermally modified wood as a possible tool for quality assessment
- Formation and properties of polyelectrolytes/TiO2 composite coating on wood surfaces through layer-by-layer assembly method
- The effect of temperature and moisture content on the fracture behaviour of spruce and birch
- A three-dimensional void reconstruction method for analyzing fractal dimensions of void volume in wood-strand composites
- Erratum
- Erratum to: Standard and non-standard deformation behaviour of European beech and Norway spruce during compression