Combustion behavior of furfurylated wood in the presence of montmorillonite and its char characteristics

Zhang, Liangliang; Ran, Yangyang; Peng, Yao; Wang, Wang; Cao, Jinzhen

doi:10.1007/s00226-022-01369-y

Cited by 8 publications

(2 citation statements)

References 70 publications

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“…For RW, three intense bands for char residues can be observed in the range 900–700 cm −1 , owing to aromatic semicircle stretching, indicating the formation of an aromatic structure. The bands at 3000–2800 cm −1 corresponding to the symmetrical stretching vibration -CH 2 and asymmetrical stretching vibration -CH 3 were weak, which is consistent with the carbonization of holocellulose during burning [ 34 ]. In addition, peaks between 3700 and 3100 cm −1 were detected in relation to the O-H stretching mode in the -OH groups.…”

Section: Resultsmentioning

confidence: 56%

Highly Flame-Retardant and Low Heat/Smoke-Release Wood Materials: Fabrication and Properties

Deng

Song

et al. 2022

Polymers

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Wood is an important renewable material exhibiting excellent physical and mechanical properties, environmental friendliness, and sustainability, and has been widely applied in daily life. However, its inherent flammability and susceptibility to fungal attack greatly limit its application in many areas. Use of fire-retardant coatings and preservatives has endowed wood with improved safety performance; importantly, the cooperative effect of dual treatments on the burning behavior and flame retardancy of wood needs to be better understood. Here, a two-step treatment for wood is proposed, with a copper–boron preservative (CBP) and a fire-retardant coating. The thermal degradation and burning behavior of treated wood were investigated. The CBP formed a physical barrier on the wood surface, facilitating a charring process at high temperatures and thus suppressing the release of heat and smoke. Notably, the dual-treated wood exhibited lower heat release and reduced smoke emission compared with the mono-treated wood, indicating a cooperative effect between CBP and fire-retardant coatings, beneficial to the improvement of fire safety. This experimental work improved fire retardance and suppressed smoke release in flammable materials, and offers a new design for developing fire-retardant coatings.

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Section: Resultsmentioning

confidence: 56%

Highly Flame-Retardant and Low Heat/Smoke-Release Wood Materials: Fabrication and Properties

Deng

Song

et al. 2022

Polymers

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“…The absorption band at 3800-3500 cm −1 attributed to the stretching of O-H bonds is from the H 2 O released; the absorption band at 3100-2800 cm −1 in the spectrum indicate the existence of CH 4 , and the peaks at 2358, 2310, and 669 cm −1 are corresponding to CO 2, while the peaks at 2239 and 2203 cm −1 are assigned for CO. The C=O stretching absorbance peaks at the band of 1800-1600 cm −1 are representative of aldehyde or ketone compounds; the absorption peak at 1500 cm −1 is related to C-O-C bend stretching for the groups of ethers; absorption bands at 1050-1185 cm −1 are corresponding to the C-OH-containing alcohols [26][27][28][29]. For the GP-modified wood, it is evident that when the pyrolysis temperature was higher than 300 • C, a great deal of non-combustible gas (CO 2 ) was released while less combustible gases (CH 4 , C=O-containing compounds, C-OHcontaining alcohols) were produced compared with the control wood.…”

Section: Tg-ir Analysismentioning

confidence: 99%

Flame Resistance and Bonding Performance of Plywood Fabricated by Guanidine Phosphate-Impregnated Veneers

Yan

Wang

Shen

et al. 2023

Forests

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In this study, fire-retardant plywood was fabricated using a simple guanidine phosphate (GP) impregnation treatment of the veneers, and the influence of the treatment on the flame resistance and bonding strength of the plywood was fully investigated. The results showed that GP modification could effectively endow the plywood with excellent fire resistance and smoke-suppression effect. When 10% GP solution was applied, the limiting oxygen index (LOI) of the impregnated wood was up to 37%, which was almost twice of unmodified plywood. The heat-release rate (HRR) and total smoke production (TSP) were also greatly decreased from the pristine 94.14 MJ/m2 and 0.77 m2 to that of modified 43.94 MJ/m2 and 0.08 m2, respectively. The excellent fireproof performance was mainly due to the thermal decomposition of GP to phosphoric acid and guanidine during combustion, which could promote the catalytic carbonization of wood and release of incombustible CO2 and NH3 to dilute and decrease the combustible gases, thus collectively preventing the wood form burning. However, the guanidine phosphate modification could seriously damage the bond performance of plywood, especially the UF resin adhesive-bonded plywood. When 10% guanidine phosphate was applied, the dry and wet bonding strength of the UF resin adhesive-bonded plywood were decreased to only 0.7 MPa and 0.12 MPa, respectively, which may be due to the blocking effect of GP in wood pores and the hygroscopic and soluble properties of GP itself in water, thus decreasing the effective bonding between wood veneers. What’s worse, the poor water resistance of the UF resin adhesive was also adverse to the bonding strength of plywood. Surprisingly, the PF resin adhesive was proved to be suitable for gluing the GP-modified wood without obviously decreasing the bonding strength, which could be used to prepare plywood with both high bonding strength and flame resistance.

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Effective strategy for fabricating surface impregnated and unilaterally densified wood with furfuryl alcohol/flame retardants for enhanced mechanical performance and flame retardancy

Huang,

Zheng,

Chen

et al. 2024

Eur. J. Wood Prod.

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Combustion behavior of furfurylated wood in the presence of montmorillonite and its char characteristics

Cited by 8 publications

References 70 publications

Highly Flame-Retardant and Low Heat/Smoke-Release Wood Materials: Fabrication and Properties

Highly Flame-Retardant and Low Heat/Smoke-Release Wood Materials: Fabrication and Properties

Flame Resistance and Bonding Performance of Plywood Fabricated by Guanidine Phosphate-Impregnated Veneers

Effective strategy for fabricating surface impregnated and unilaterally densified wood with furfuryl alcohol/flame retardants for enhanced mechanical performance and flame retardancy

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