Journal
BIORESOURCES
Volume 14, Issue 4, Pages 9472-9484Publisher
NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI
DOI: 10.15376/biores.14.4.9472-9484
Keywords
Lignocellulosics, Sustainable materials, Eucalyptus grandis bark; Pine shavings; Oriented strand boards - OSB; Design methodology
Categories
Funding
- Fundacao araucaria
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior - CAPES
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Lumber mills generate a huge volume of residues, with tree bark and saw shavings being main contributors. A small amount of this material is burned for energy generation, though most of it is left on the sawmill grounds or dumped in sanitary landfills, thus presenting a huge environmental issue. This study deals with the application of eucalyptus bark and saw shavings for the manufacturing of oriented strand board (OSB). Four types of panel compositions where studied: 25%, 50%, 75%, and 90% of bark content; 10% percent of shavings for all of them, and a variable content of pine strands. The adhesive was phenol formaldehyde at 6% related to the dry mass of the components. Because an important characteristic of OSB panels is their response to swelling, a 1% of paraffin emulsion was added to seal the particles. The results showed that only the 90%-bark panel could meet OSB standard prescriptions as a type 1 dry environment application.
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