SciELO - Scientific Electronic Library Online

 
vol.21 número3Secagem ao ar livre da madeira para produção de carvão vegetal índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Floresta e Ambiente

versão On-line ISSN 2179-8087

Resumo

GONCALVES, Fabricio Gomes et al. Resistance of Acacia mangium Willd. wood particleboards bonded with urea-formaldehyde and tannins to wood-destroying organisms. Floresta Ambient. [online]. 2014, vol.21, n.3, pp.409-415.  Epub 29-Jul-2014. ISSN 2179-8087.  http://dx.doi.org/10.1590/2179-8087.059113.

This study aimed to evaluate the resistance of particleboards made of Acacia mangium Willd. wood, bonded with urea-formaldehyde and tannins as adhesive, against xylophagous organisms. Panels of 40 × 40 × 1.27 cm (width x length x thickness) were produced; 10, 20 and 30% of tannins were added to the adhesive; four compaction ratios (1.39; 1.55; 1.73 and 2.00) were employed. Samples of 2.50 × 2.50 × 1.27 cm (width x length x thickness) were used in the tests with fungi and termites. Gloeophyllum trabeum and Trametes versicolor (12 weeks) fungi and Nasutitermes sp. (45 days) termites were employed in the tests. Panels with the highest compaction ratio and proportion of tannins provided the most effective resistance to Gloeophyllum trabeum. No difference between the adhesives and compaction ratios was observed for Trametes versicolor. Gloeophyllum trabeum caused greater mass loss than Trametes versicolor. The samples were completely consumed by the termites.

Palavras-chave : particleboard; biodeterioration; decay fungi; subterranean termite.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons