Study of Adhesion of Wood Modified with Amine-Borates

Степина, Ирина; Sidorov, Vyacheslav Ivanovich

doi:10.4028/www.scientific.net/amm.584-586.1251

Cited by 1 publication

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“…At the same time, wood acquires enhanced operational and fire-protective properties. Efficient modifiers should react with OH-group supporter of lignin-carbohydrate complex components; the degree of reaction cannot be above 0.8-1.5 % of chemically combined phosphorus [13,14].…”

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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Section: Introductionmentioning

confidence: 99%