Mineralization of heat-treated fir wood with magnesium oxychloride: thermal characteristics and flame retardation

IF 2.4 3区农林科学 Q1 FORESTRY

European Journal of Wood and Wood Products Pub Date : 2025-01-06 DOI:10.1007/s00107-024-02191-y

Mohammad Saleh Zare, Behbood Mohebby, Ali Shalbafan

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引用次数: 0

Abstract

The aim of this study was to improve the flame retardation and performance characteristics of wood through impregnation with magnesium-based compounds. Fir wood (Abies sp.) samples, both heat-treated and non-heat-treated, were impregnated with magnesium oxide and magnesium chloride using combined and separate methods. Impregnation was carried out under an initial vacuum followed by pressure. The effects of impregnation on the wood's structure, thermal properties, and fire resistance were investigated using FTIR spectroscopy, XRD analysis, TGA analysis, and flame retardation tests. FTIR, XRD, and TGA analyses confirmed increased thermal stability and crystallinity in impregnated samples, especially non-heat-treated samples. Wood impregnation with magnesium compounds extended the time to ignition, reduced flame duration, and decreased glowing combustion duration. Impregnation of samples resulted in a less carbonized surface. The lowest carbonized surface was observed in the combined-method impregnated non-heat-treated sample. Based on the results of this study, it can be concluded that the impregnation of heat-treated and non-heat-treated wood with magnesium compounds (oxide and chloride) was successful in improving flame retardation and performance characteristics.

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用氯化镁处理冷杉木材的矿化：热特性和阻燃性

本研究的目的是通过镁基化合物浸渍来改善木材的阻燃性和性能特性。冷杉木（Abies sp.）样品，热处理和未热处理，用氧化镁和氯化镁浸渍采用联合和单独的方法。浸渍是在最初的真空和随后的压力下进行的。采用红外光谱（FTIR）、x射线衍射（XRD）、热重分析（TGA）和阻燃试验研究了浸渍对木材结构、热性能和耐火性能的影响。FTIR， XRD和TGA分析证实，浸渍样品的热稳定性和结晶度有所提高，特别是未经热处理的样品。用镁化合物浸渍木材，可以延长木材的着火时间，减少火焰持续时间，减少发光燃烧持续时间。浸渍后的样品表面碳化程度较低。复合浸渍法未热处理样品的表面碳化程度最低。根据本研究的结果，可以得出结论，用镁化合物（氧化物和氯化物）浸渍热处理和非热处理木材成功地改善了阻燃性和性能特性。

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

European Journal of Wood and Wood Products 工程技术-材料科学：纸与木材

CiteScore

5.40

自引率

3.80%

发文量

124

审稿时长

6.0 months

期刊介绍： European Journal of Wood and Wood Products reports on original research and new developments in the field of wood and wood products and their biological, chemical, physical as well as mechanical and technological properties, processes and uses. Subjects range from roundwood to wood based products, composite materials and structural applications, with related jointing techniques. Moreover, it deals with wood as a chemical raw material, source of energy as well as with inter-disciplinary aspects of environmental assessment and international markets. European Journal of Wood and Wood Products aims at promoting international scientific communication and transfer of new technologies from research into practice.