Fire- Bio-Retarding Composition for Wood With Effective Smoke-Quenching Components

Pokrovskaya, Elena; Portnov, Fedor

doi:10.22227/1997-0935.2015.10.106-114

Cited by 2 publications

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“…The papers [2][3][4][5][6] show that wood can obtain fire-and bio-protection and hydrophobic properties due to surface chemical modification by organophosphorous compounds.…”

Section: Introductionmentioning

confidence: 99%

Surface thermodynamic parameters of modified wood

Pokrovskaya

Portnov

Dolganov³

2016

MATEC Web Conf.

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Abstract. Energy characteristics of modified wood are studied in the paper. Application of this approach during the study of wooden materials allows forecasting the efficiency of modifiers for surface layer of wood. Phosphites, the efficient fire-retarders, were applied as modifiers. Using the example of a number of ethers with various alkoxy substituents of phosphorus atom, we have made an attempt to associate surface thermodynamic properties of modified wood and formation of properties for fire-, bio-and smoke protection. The dependence of change of energy characteristics and surface structure of wood on the nature of modifiers is determined. To study energy characteristics of wood, modified by various compounds, the following characteristics were used: σ surface tension and ΔG free enthalpy gradient. Easy Drop setting and the corresponding software were used to determine these values. According to the obtained data, the conclusion is made about the influence of modifiers on energy characteristics of wood. The high degree of modification (% P) causes bigger change of Gibbs energy, which determines formation of high-level fire-, bio-and smoke protection. Diethyl phosphite is the most efficient modifier. Formation of fire-protective properties stipulates long-term operation of wood and wood-based materials.

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“…The papers [2][3][4][5][6] show that wood can obtain fire-and bio-protection and hydrophobic properties due to surface chemical modification by organophosphorous compounds.…”

Section: Introductionmentioning

confidence: 99%

Surface thermodynamic parameters of modified wood

Pokrovskaya

Portnov

Dolganov³

2016

MATEC Web Conf.

Self Cite

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Thermal Decomposition of Mono- And Diethanolamineborate Modified Wood in Air Atmosphere

STEPINA,

ZHEGLOVA

2023

Cellulose Chem. Technol.

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"For cellulosic materials used in various branches of the economy, the issue of increasing thermal stability is still relevant today. Especially acute is the problem of fire resistance for wood materials used in building structures. In our work, we investigated the effect of mono- and diethanolamine borates on the thermal decomposition of wood in an air atmosphere. It has been previously found that mono- and diethanolaminoborates, when used as surface modifiers, provide 100% biostability to plant raw materials. In this regard, the purpose of the study was to identify the flame retardant effect of the described modifiers. In the course of the study, it was found that the developed compositions, the main components of which are boron-nitrogen compounds, effectively reduce the combustibility of wood materials, suppress smoldering, and reduce the burning rate of wood. Since it is the smoldering of wood after the liquidation of the fire that is the main cause of structural collapse, which prevents evacuation during the fire, the use of the developed compositions for fire protection of wooden structures is extremely appropriate. A regression model of the dependence of activation energy on conversion has been obtained and substantiated on the basis of correlation and regression analysis. The presented semi-logarithmic model can be further applied to predict the dependence of the activation energy value of the thermal decomposition process of modified wood on the degree of conversion."

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Fire- Bio-Retarding Composition for Wood With Effective Smoke-Quenching Components

Cited by 2 publications

References 0 publications

Surface thermodynamic parameters of modified wood

Surface thermodynamic parameters of modified wood

Thermal Decomposition of Mono- And Diethanolamineborate Modified Wood in Air Atmosphere

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