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

Authors

  • Carolina Aparecida Barros Oliveira Universidade Estadual Paulista Júlio de Mesquita Filho, Programa de Pós-Graduação em Engenharia Mecânica, Guaratinguetá, SP - Brasil
  • Karina Aparecida de Oliveira Universidade Estadual Paulista Júlio de Mesquita Filho, Programa de Pós-Graduação em Engenharia Mecânica, Guaratinguetá, SP - Brasil
  • Julio Cesar Molina Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Engenharia, Itapeva, SP - Brasil
  • Vinicius Borges de Moura Aquino Universidade Federal do Sul e Suldeste do Pará, Departamento de Engenharia Civil, Santana do Araguaia, PA - Brasil
  • André Luis Christoforo Universidade Federal de São Carlos, Departamento de Engenharia civil, São Carlos, SP - Brasil

Keywords:

hardwoods, chemical properties, mechanical properties

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.

Keywords: Chemical properties; Mechanical properties; Regression models

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Published

2021-08-23

How to Cite

Oliveira, C. A. B., de Oliveira, K. A., Molina, J. C., Aquino, V. B. de M., & Christoforo, A. L. (2021). INFLUENCE OF COMMERCIAL THERMAL TREATMENT ON Eucalyptus grandis Hill ex Maiden WOOD PROPERTIES. Revista Árvore, 45(1), https://doi.org/10.1590/1806–908820210000027. Retrieved from https://revistaarvore.ufv.br/rarv/article/view/248637

Issue

Revista Árvore, Viçosa-MG, v.45, 2021

Section

Wood Technology and Utilization of Forest Products

License

All authors agreed to submit the work to Revista Árvore and granted the exclusive license to publish the article. The authors affirm that it is an original work and has not been previously published elsewhere. The scientific content and opinions expressed in the article are the sole responsibility of the authors and reflect their opinions, not necessarily representing the opinions of the editorial board of Revista Árvore or of the Society of Forest Investigations (SIF).

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