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Alkali Impregnation of Hardwoods. Part Ⅰ: Moderate Treatment of Poplar Wood

机译:碱浸渍硬木。第一部分:杨木的适度处理

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摘要

The action of alkali on milled and solid poplar wood is analyzed under medium levels of alkali concentration and temperatures below 100℃. Under these conditions, as much as 6% NaOH on wood can be consumed by deacetylation and other chemical reactions. For both transverse directions of solid wood, profiles of the alkali concentration are analyzed as well as profiles of the content of alkali, liquid, elemental sodium and the acetyls. The results confirm that during alkali impregnation of solid wood, an advancing boundary zone is established which separates an intact inner part from an outer swollen zone.
机译:在中等浓度的碱浓度和低于100℃的温度下,分析了碱对杨木和实木的作用。在这些条件下,脱乙酰化和其他化学反应可消耗木材上多达6%的NaOH。对于实木的两个横向方向,都分析了碱浓度曲线以及碱,液体,元素钠和乙酰基含量的曲线。结果证实,在实木的碱浸渍过程中,建立了一个前进的边界区域,该边界区域将完整的内部部分与外部的膨胀区域分开。

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