Thermal Degradation and Fire Retrandancy of Wood Impregnated with Nitrogen Phosphorus Flame Retardant

Atchariyaphorn Phromsaen; Prinya Chindaprasirt; Salim Hiziroglu; Pornnapa Kasemsiri

doi:10.4028/www.scientific.net/AMR.931-932.152

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 931-932Thermal Degradation and Fire Retrandancy of Wood...

Thermal Degradation and Fire Retrandancy of Wood Impregnated with Nitrogen Phosphorus Flame Retardant

Abstract:

In this research, the effect of diammoniumphosphate (DAP) as fire retardant additive during thermal degradation of wood samples from shorea obtuse (Dipterocarpaceae) has been investigated. Thermal properties of wood samples impregnated with DAP ranging from 0-40 %wt were characterized by thermogravimetric analysis (TGA) and limiting oxygen index (LOI). Leachability of DAP from impregnated samples kept under running water was also investigated. The results indicated that the rate of weight loss obtained from TGA reveal that impregnation of DAP reduced the degradation rate from 0.95%/°C to 0.56%/°C. Furthermore, LOI of woods specimens trended to be increase from 24.8 to 30.6 when they were treated with DAP having a range of 0-30 %wt. Based on the results of this study, wood samples impregnated with 30%wt of DAP can be classified as self-extinguishing materials and cloud meet the requirement for non-flammability in construction. The leachability test indicated that only trace amount of unreacted DAP leached from the samples.

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Periodical:

Advanced Materials Research (Volumes 931-932)

Pages:

152-156

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.931-932.152

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Online since:

May 2014

Authors:

Atchariyaphorn Phromsaen, Prinya Chindaprasirt, Salim Hiziroglu, Pornnapa Kasemsiri*

Keywords:

Flame-Retarded Wood, LOI, Thermal Analysis

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