Production and characterization of heat treated OSB made of <i>Pinus taeda

Authors

  • João Ví­tor Felippe Silva Universidade Estadual Paulista “Júlio de Mesquita Filho”
  • Cristiane Inácio de Campos Universidade Estadual Paulista “Júlio de Mesquita Filho”
  • Bruno Santos Ferreira Universidade Estadual Paulista “Júlio de Mesquita Filho”
  • Maria Fernanda Felippe Silva Universidade Estadual Paulista “Júlio de Mesquita Filho”

DOI:

https://doi.org/10.4025/actascitechnol.v41i1.39505

Keywords:

thermic treatment, physical and mechanical characterization, structural board, phenol formaldehyde resin.

Abstract

Oriented strand board (OSB) panels, like plywood, are destined for structural use. Both of them may undergo preservative treatments that extend their lifetime and increase their resistance against weathering and xylophagous agents. One possibility is a heat treatment where the wood is exposed to temperatures above 130°C (403 K), which causes chemical, physical, and mechanical changes. The aim of this work was to produce OSB made of Pinus taeda thermally treated without replacement of atmosphere for an inert gas. The physical properties of density, moisture content, and thickness swelling in water immersion for 24 hour were evaluated. The mechanical properties of static bending were determined by the modulus of elasticity (MOE), modulus of rupture (MOR), and an internal bond test. Boards were heat-treated at 160, 180, and 200°C (433, 453 and 473 K), and panels were produced with heat-treated strands at 160 and 180°C (433 and 453 K). The heat treatment of boards did not affect mechanical properties compared to the control treatment. The thermal treatment of strands reduced the physical and mechanical performances of the panels. 

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Author Biography

Cristiane Inácio de Campos, Universidade Estadual Paulista “Júlio de Mesquita Filho”

Graduada em Engenharia Civil, ênfase em Sistemas Construtivos pela Universidade Federal de São Carlos (1997). Mestre em Arquitetura e Urbanismo, ênfase em Tecnologia do Ambiente Construí­do pela Universidade de São Paulo (2000). Doutora em Ciências e Engenharia de Materiais pela Universidade de São Paulo (2005). Atualmente é professor assistente pela Universidade Estadual Paulista Júlio de Mesquita Filho - Campus Itapeva, onde está atuando como professora de Resistência dos Materiais, Estruturas de Madeira, Produção de Painéis I e II.

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Published

2019-07-04

How to Cite

Silva, J. V. F., Campos, C. I. de, Ferreira, B. S., & Silva, M. F. F. (2019). Production and characterization of heat treated OSB made of <i>Pinus taeda. Acta Scientiarum. Technology, 41(1), e39505. https://doi.org/10.4025/actascitechnol.v41i1.39505

Issue

Vol. 41 (2019): Publicação Contí­nua

Section

Civil Engineering

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