The impact of moisture on salt treated and 2-step mineralized wood

IF 2.2 3区农林科学 Q2 FORESTRY

Holzforschung Pub Date : 2023-06-09 DOI:10.1515/hf-2023-0003

Tom Franke, Christina Hinterleitner, A. Maillard, Elena Nedelkoska, T. Volkmer

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引用次数: 0

Abstract

Abstract A treatment to improve the reaction to fire of wood is the wood mineralization. Besides the reaction to fire of the mineralized wood, other mechanical and physical properties are less investigated. In this study, beech and oak were treated in a 2-step mineralization process to obtain calcium oxalate mineralized wood. The 2-step mineralization process is carried out by impregnating two salts diluted in water into the wood, consecutively. Two formulations were applied. For Formulation 1, potassium oxalate and calcium acetate and for Formulation 2 potassium oxalate and calcium chloride were used. Aim of the study is to investigate the impact of the treatments and in combination of the moisture on some selected properties of the mineralized wood. These properties are the swelling due to the mineralization treatment, the Brinell hardness and the volatile organic compounds emissions. The 2-step mineralization treatments increased the moisture adsorption of wood. However, the removal of unreacted precursors due to leaching provides a material with comparable moisture dynamics to untreated wood. Swelling, hardness and volatile organic compounds emissions are decreased by the mineralization. However, leaching of the reaction by-products leads to a material with comparable properties to those of untreated wood.

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水分对盐处理和二步矿化木材的影响

摘要木材矿化是提高木材对火反应的一种处理方法。除了矿化木材对火的反应外，其他机械和物理性质的研究较少。在本研究中，山毛榉和橡树在两步矿化过程中得到草酸钙矿化木材。两步矿化过程是将两种经水稀释的盐类连续浸渍到木材中。采用了两种配方。配方1采用草酸钾和醋酸钙，配方2采用草酸钾和氯化钙。该研究的目的是调查处理和结合水分对矿化木材某些选定性能的影响。这些性能是由于矿化处理引起的膨胀，布氏硬度和挥发性有机化合物的排放。两步矿化处理提高了木材的吸湿性。然而，由于浸出而去除未反应的前体提供了与未经处理的木材具有相当水分动力学的材料。矿化降低了溶胀、硬度和挥发性有机物的排放。然而，反应副产物的浸出导致材料具有与未经处理的木材相当的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Holzforschung 工程技术-材料科学：纸与木材

CiteScore

4.60

自引率

4.20%

发文量

审稿时长

3.3 months

期刊介绍： Holzforschung is an international scholarly journal that publishes cutting-edge research on the biology, chemistry, physics and technology of wood and wood components. High quality papers about biotechnology and tree genetics are also welcome. Rated year after year as one of the top scientific journals in the category of Pulp and Paper (ISI Journal Citation Index), Holzforschung represents innovative, high quality basic and applied research. The German title reflects the journal''s origins in a long scientific tradition, but all articles are published in English to stimulate and promote cooperation between experts all over the world. Ahead-of-print publishing ensures fastest possible knowledge transfer.