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      Produção de compensados de Pinus taeda L. E Pinus oocarpa Schiede com diferentes formulações de adesivo uréia formaldeído Translated title: Plywood manufacturing from Pinus elliottii L. and Pinus oocarpa Schiede with different formulations of the urea-formaldheyde resin

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          Abstract

          Este trabalho teve como objetivo avaliar a qualidade de painéis compensados de Pinus taeda e de Pinus oocarpa, com 20 e 24 anos de idade, respectivamente, utilizando três diferentes formulações de adesivo uréia-formaldeído. Foram produzidos 18 painéis, com três repetições por tratamento. As formulações com maior proporção relativa de resina não influenciaram de forma conclusiva as propriedades físico-mecânicas dos painéis.Os painéis de P. oocarpa apresentaram valores médios de resistência da linha de cola, módulos de elasticidade e de ruptura superiores àqueles dos painéis de P. taeda. Os resultados das propriedades físico-mecânicas dos painéis indicaram grande potencial de utilização de lâminas de P. oocarpa para produção de compensados.

          Translated abstract

          The objective of this study was to evaluate the quality of both Pinus taeda and Pinus oocarpa plywood, 20 and 24-years-old, respectively, using three different formulations of urea formaldheyde resin. A total of 18 boards were produced, using three repetitions per treatment. The formulations containing a high relative proportion of the resin did not show a conclusive influence on the physical and mechanical properties of the boards. The boards made from P. oocarpa showed higher average values of the glue line strength, modulus of elasticity and modulus of rupture in comparison to boards of P. taeda. The results showed that the evaluation of the physical and mechanical properties of the board, indicate that the veneers of P. oocarpa have a high potentiality for plywood production.

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          Science and technology of wood structure, properties, utilization

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            Plywood and adhesive technologu

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              Technology of wood bonding

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                Author and article information

                Journal
                rarv
                Revista Árvore
                Rev. Árvore
                Sociedade de Investigações Florestais (Viçosa, MG, Brazil )
                0100-6762
                1806-9088
                May 2002
                : 26
                : 3
                : 371-375
                Affiliations
                [02] orgnameUniversidade Federal do Paraná - UFPR orgdiv1Dep. Engenharia e Tecnologia Florestal
                Article
                S0100-67622002000300013 S0100-6762(02)02600313
                f640a939-e8f4-4095-8103-103cc2c507b0

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

                History
                : 20 June 2002
                : 26 January 2001
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 8, Pages: 5
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                SciELO Brazil

                Self URI: Texto completo somente em PDF (PT)

                painéis compensados,Pinus,urea-formaldheyde,plywood,uréia-formaldeído

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