Effect of Flame Retardant Treatment Processes on the Flame Performance of Foamed Polyurethane/Wood-Flour Composites

Wang, Beibei; Wang, Xuanye; Zhao, Lijuan; Zhang, Qiuhui; Yang, Guochao; Guo, Huajun

doi:10.2139/ssrn.4079231

Cited by 1 publication

(2 citation statements)

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“…The weaker absorption peaks at 887 cm -1 were the C-H in-plane deformation vibration, as well as the C-O stretching vibration in cellulose, which became weaker after ADP treatment, which was mainly attributed to the P-O asymmetric stretching vibration of the flame retardant P-O-P. Compared to the untreated veneer, a new absorption peak was generated at 538 cm -1 and was the P=O stretching vibration, suggesting that ADP had a condensation reaction with lignin (Wang et al 2016b). As can be seen from Fig.…”

Section: Analysis Of Ftirmentioning

confidence: 94%

“…However, when the temperature continued to increase to 90 °C, all three began to decline. This is mainly because when the temperature was too high, the movement of dye molecules and flame retardant molecules were intense, resulting in decomposition of a portion of the dyes and flame retardants, and there was also a phenomenon of color bloom, which led to the dye-uptake, color difference, and oxygen index, showing a decreasing trend (Gu et al 2007;Wang et al 2016b).…”

Section: Temperaturementioning

confidence: 99%

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Properties of poplar veneer modified by Acid Red 3R dye in combination with ammonium dihydrogen phosphate

Shi,

Shen,

Qin

et al. 2024

BioRes

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Ammonium dihydrogen phosphate (ADP) is a nitrogen-phosphorus-based inorganic flame retardant that is environmentally friendly and non-toxic. Wood treated with ADP has enhanced thermal stability and flame retardancy. Compounding ADP with Acid Red 3R dye further improves the decorative effect of the wood on the basis of excellent flame retardancy, resulting in a kind of dyeing and flame retardant multifunctionalized wood. Single-factor tests were designed to investigate the effects of flame retardant concentration, dye concentration, temperature, and time on three evaluation indexes: dye-uptake, color difference, and oxygen index, respectively. Through SEM and FTIR analysis, it was found that after the wood was simultaneously treated with flame retardant and dye, the two additives were aggregated in the grain pores of the cell wall by a simple physical combination. They did not undergo a chemical reaction. TG analysis showed that fire-retardant dyed wood had good thermal stability, which can delay the thermal degradation of wood and increase the residual charcoal rate of wood. XRD showed that the crystallinity of fire-retardant dyed wood increased compared to untreated wood. Through cone calorimetric test, it is found that flame retardant dyed veneer had excellent flame retardancy.

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Section: Analysis Of Ftirmentioning

confidence: 94%

Section: Temperaturementioning

confidence: 99%