Alternative Compositions Of Oriented Strand Boards (Osb) Made With Commercial Woods Produced In Brazil
| Autor: | Lina Bufalino, Andrea Aparecida Ribeiro Corrêa, Vânia Aparecida de Sá, Lourival Marin Mendes, Natália Amarante Almeida, Vinnicius Dordenoni Pizzol |
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| Jazyk: | English<br />Spanish; Castilian |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Maderas: Ciencia y Tecnología, Vol 17, Iss 1 (2015) |
| Druh dokumentu: | article |
| ISSN: | 0717-3644 0718-221X |
| Popis: | This work aimed to investigate the feasibility of using and mixing Toona ciliata, Eucalyptus grandis/urophylla and Pinus oocarpa woods in OSB production. Three one-species and four mixed-species combinations were compared. Layer structure varied by positioning different wood species in the surface and core of the panels. Phenol-formaldehyde (PF) adhesive was applied at 9% for all OSB panels. Three-layer mats with mass proportion of 25/50/25% for surface/core/surface were produced. Pressing time was 8 min, under a 4 MPa pressure and temperature of 180 ˚C. Physical and mechanical properties were evaluated and compared to EN (300) commercialization standard. Most OSB panels did not fully attain such requirements. OSB panels made with Eucalyptus grandis/urophylla and Pinus oocarpa woods have potential to be commercialized as OSB/1 and OSB/2 types, respectively. Among panels made with T. ciliata wood, those produced with this species in the surface and Eucalyptus grandis/urophylla wood in the core met the requirements established for OSB/1 commercialization. Eucalyptus wood has great potential to substitute Pinus wood in OSB production. The utilization of T. ciliata wood for OSB production decreased mechanical performance, but remarkably enhanced water resistance properties. |
| Databáze: | Directory of Open Access Journals |
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