INFLUENCE OF COMMERCIAL THERMAL TREATMENT ON Eucalyptus grandis Hill ex Maiden WOOD PROPERTIES

IF 0.6 4区 农林科学 Q4 FORESTRY Revista Arvore Pub Date : 2021-01-01 DOI:10.1590/1806-908820210000027
C. Oliveira, K. A. D. Oliveira, J. C. Molina, V. Aquino, A. Christoforo
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Abstract

ABSTRACT This study aimed to evaluate the influence of commercial thermal treatment on Eucalyptus grandis considering its physical, chemical, and mechanical properties. The wood samples were heat-treated in an autoclave with saturated steam and pressure application at four different temperatures: 155, 165, 175, and 185 ºC. The physical, chemical, and mechanical properties were altered due to the heat treatment. The extractives content varied between 6.06% and 28.75%; lignin between 28.93% and 37.96%; holocellulose between 65.01% and 38.12%. The mechanical properties reduced significantly with the increase of the heat treatment temperature. Through the set of data obtained, it was possible to generate significant and high precision regression models capable of estimating such properties for heat treatment temperatures not studied experimentally, enabling the determination of the most suitable temperature of heat treatment to achieve a certain property value of the treated wood.
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商业热处理对巨桉木材特性的影响
摘要:本研究旨在评价商业热处理对巨桉物理、化学和机械性能的影响。木材样品在高压灭菌器中以饱和蒸汽和压力在四种不同的温度下进行热处理:155、165、175和185℃。由于热处理,物理、化学和机械性能都发生了变化。提取物含量在6.06% ~ 28.75%之间;木质素在28.93% ~ 37.96%之间;全纤维素含量在65.01%到38.12%之间。随着热处理温度的升高,合金的力学性能显著降低。通过所获得的一组数据,可以生成有意义且高精度的回归模型,能够对实验未研究的热处理温度进行此类性能的估计,从而确定最合适的热处理温度,以实现被处理木材的某一性能值。
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来源期刊
Revista Arvore
Revista Arvore FORESTRY-
CiteScore
1.00
自引率
0.00%
发文量
32
审稿时长
4-8 weeks
期刊介绍: A Revista Árvore é um veículo de comunicação científica da Sociedade de Investigações Florestais – SIF. O jornal é de acesso gratuito, revisado por pares, que publica bimestralmente trabalhos científicos originais no campo da Ciência Florestal. As áreas temáticas para publicação são: Ambiência e Conservação da Natureza, Manejo Florestal, Silvicultura e Tecnologia da Madeira e Utilização de Produtos Florestais. A política editorial visa manter alta conduta ética em relação à publicação e aos seus funcionários, rigor na qualidade dos artigos científicos, seleção de revisores qualificados, respeito profissional aos autores e processo de tomada de decisão imparcial. A Revista Árvore publica artigos apenas em inglês. Artigos de revisão podem ser publicados se houver uma discussão relevante resumindo o estado da arte sobre o assunto. A revisão estrita da literatura não é aceita.
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