Dimensional stability and flame resistance of silicate-acetylated and -propionylated wood composites

Dimensional stability and flame resistance of silicate-acetylated and -propionylated wood composites

Silicate-acetylated wood (SAW) and silicate-propionylated wood (SPW) composites were prepared, and the dimensional stability and flame resistance of these composites were evaluated. The silicate gels had insignificant effects on the rate of acetylation or propionylation of wood. In the presence of s...

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Veröffentlicht in:Journal of wood chemistry and technology 2000-11, Vol.20 (4), p.441-453
Hauptverfasser: Li, Jian-Zhang, Furuno, Takeshi, Katoh, Sadanobu
Format: Artikel
Sprache:eng
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Applied sciences
Exact sciences and technology
Polymer industry, paints, wood
Wood-based materials
Wood. Paper. Non wovens
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container_end_page 453
container_issue 4
container_start_page 441
container_title Journal of wood chemistry and technology
container_volume 20
creator Li, Jian-Zhang
Furuno, Takeshi
Katoh, Sadanobu
description Silicate-acetylated wood (SAW) and silicate-propionylated wood (SPW) composites were prepared, and the dimensional stability and flame resistance of these composites were evaluated. The silicate gels had insignificant effects on the rate of acetylation or propionylation of wood. In the presence of silicate gels, the SAW and SPW composites showed slightly lower anti-swelling efficiency (ASE) during water or moisture absorption and a lower moisture excluding efficiency (MEE) than the corresponding acetylated wood and propionylated wood, but the SAW and SPW composites still retained fairly good dimensional stability. The oxygen indices (OIs) of the SAW and SPW composites were higher than those of untreated wood specimens and increased with an increase in the weight percent gains (WPG(si)s) of silicate gel fixation. The silicate gel fixation endowed the composites with flame resistance.
doi_str_mv 10.1080/02773810009351893
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The silicate gels had insignificant effects on the rate of acetylation or propionylation of wood. In the presence of silicate gels, the SAW and SPW composites showed slightly lower anti-swelling efficiency (ASE) during water or moisture absorption and a lower moisture excluding efficiency (MEE) than the corresponding acetylated wood and propionylated wood, but the SAW and SPW composites still retained fairly good dimensional stability. The oxygen indices (OIs) of the SAW and SPW composites were higher than those of untreated wood specimens and increased with an increase in the weight percent gains (WPG(si)s) of silicate gel fixation. 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The silicate gels had insignificant effects on the rate of acetylation or propionylation of wood. In the presence of silicate gels, the SAW and SPW composites showed slightly lower anti-swelling efficiency (ASE) during water or moisture absorption and a lower moisture excluding efficiency (MEE) than the corresponding acetylated wood and propionylated wood, but the SAW and SPW composites still retained fairly good dimensional stability. The oxygen indices (OIs) of the SAW and SPW composites were higher than those of untreated wood specimens and increased with an increase in the weight percent gains (WPG(si)s) of silicate gel fixation. The silicate gel fixation endowed the composites with flame resistance.</description><subject>Applied sciences</subject><subject>Exact sciences and technology</subject><subject>Polymer industry, paints, wood</subject><subject>Wood-based materials</subject><subject>Wood. Paper. 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subjects Applied sciences
Exact sciences and technology
Polymer industry, paints, wood
Wood-based materials
Wood. Paper. Non wovens
title Dimensional stability and flame resistance of silicate-acetylated and -propionylated wood composites
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