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      RESISTÊNCIA DE PAINÉIS AGLOMERADOS PRODUZIDOS COM DIFERENTES PROPORÇÕES DE MADEIRA E CASCA DE ARROZ A FUNGOS E CUPINS XILÓFAGOS Translated title: DECAY AND TERMITE RESISTANCE OF PARTICLEBOARD MADE WITH DIFFERENT PROPORTIONS OF WOOD AND RICE HUSK

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          Abstract

          RESUMO Foi avaliada a resistência a fungos apodrecedores e a cupins subterrâneos de painéis aglomerados produzidos com diferentes proporções de madeira e casca de arroz. As chapas foram produzidas utilizando a madeira de Eucalyptus grandis com a inclusão de casca de arroz nas proporções de 0, 20, 40, 60, 80 e 100%, utilizando como aglutinante as resinas uréia-formaldeído e tanino-formaldeído. Os resultados obtidos indicaram que, painéis produzidos com casca de arroz geralmente apresentam maior resistência ao ataque de fungos apodrecedores e aos cupins subterrâneos. Painéis colados com tanino-formaldeído foram mais resistentes ao ataque dos térmitas, enquanto que, para os fungos, foi detectada diferença significativa entre o efeito dos adesivos apenas quando submetidas ao ataque de Gloeophyllum trabeum, sendo as chapas produzidas com uréia-formaldeído as mais resistentes. Dentre os fungos, Trametes versicolor proporcionou uma maior perda de massa aos painéis.

          Translated abstract

          ABSTRACT Decay resistance against fungi and termite of particleboard made with different proportions of wood (Eucalyptus grandis) and rice husk was studied. Particleboard with 0, 20, 40, 60, 80 and 100% proportions of rice husk was produced using urea-formaldehyde and tannin-formaldehyde as adhesives. Particleboards produced with rice husk presented a higher resistance against fungi and termite attack. Particleboards glued with tannin-formaldehyde were more resistant to the attack of termites; for fungi, the difference between adhesives was observed when these particleboards were submitted to the attack of Gloeophyllum trabeum, in which case the particleboards produced with urea-formaldehyde were more resistant. Trametes versicolor was the fungus that caused the largest mass loss to the particleboards.

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          Preservation of timber in the tropics

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            Purification of Rice Hulls as a Source of Solar Grade Silicon for Solar Cells

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              Decay and termite resistance of medium density fiberboard (MDF) made from different wood species

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                cflo
                Ciência Florestal
                Ciênc. Florest.
                Universidade Federal de Santa Maria (Santa Maria, RS, Brazil )
                0103-9954
                1980-5098
                September 2010
                : 20
                : 3
                : 501-511
                Affiliations
                [2] Bom Jesus Piauí orgnameUniversidade Federal do Piauí Brazil rrmelo2@ 123456yahoo.com.br
                [6] Sinop orgnameUniversidade Federal de Mato Grosso orgdiv1Instituto de Ciências Agrárias e Ambientais Brazil diego_stangerlin@ 123456yahoo.com.br
                [3] Santa Maria Rio Grande do Sul orgnameUniversidade Federal de Santa Maria orgdiv1Centro de Ciências Rurais orgdiv2Departamento de Ciências Florestais Brazil
                [4] Brasília DF orgnameServiço Florestal Brasileiro orgdiv1Laboratório de Produtos Florestais Brazil alencar.garlet@ 123456ibama.gov.br
                [5] Patos Paraíba orgnameUniversidade Federal de Campina Grande orgdiv1Unidade Acadêmica de Engenharia Florestal Brazil jbp2@ 123456uol.com.br
                Article
                S1980-50982010000300501
                10.5902/198050982064
                24fcd1e3-e214-4d84-bb16-caa6b461d5f9

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 28, Pages: 11
                Product

                SciELO Brazil


                painéis reconstituídos,resíduos agrícolas,resistência ao apodrecimento,cupins subterrâneos,particleboard,agriculture residues,decay resistance,subterranean termites

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