Produção de chapas de partículas orientadas OSB de Eucalyptus grandis com diferentes teores de resina, parafina e composição em camadas
| Autor: | Setsuo Iwakiri, Lourival Mendes Marin, Leopoldo Saldanha Karman |
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| Jazyk: | portugalština |
| Rok vydání: | 2003 |
| Předmět: | |
| Zdroj: | Ciência Florestal, Vol 13, Iss 1, Pp 89-94 (2003) |
| Druh dokumentu: | article |
| ISSN: | 0103-9954 1980-5098 |
| Popis: | This paper was carried out aiming to evaluate the influence of the following processing variables on the properties of OSB: face to core layer ratios of 30-40-30 and 20-60-20 in relation to a single layer; phenol-formaldehyde resin content of 3, 4.5 and 6.0% and addition of 0.5 or 1.0% of wax sizing. The results showed that the boards composed of face to core layer ratios of 20-60-20, presented the better balance in static bending tests, both in the machine and cross-machine directions. The application of 4.5 and 6.0% of resin resulted in better physical and mechanical properties of the OSB. The OSB produced with Eucalyptus grandis, and 4.5 and 6.0% of phenol-formaldehyde resin were in compliance with values of the mechanical properties of the Canadian Standards CSA 0437-0 (1993). |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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