Avaliação da madeira do híbrido de Eucalyptus grandis × Eucalyptus urophylla para utilização em madeira lamelada colada
نویسندگان
چکیده
RESUMO A madeira lamelada colada (MLC) possui inúmeras vantagens, podendo ser utilizada em diversos projetos com diferentes dimensões. O objetivo desta pesquisa foi avaliar as propriedades físicas e mecânicas da do híbrido de E. grandis × urophylla visando a produção elementos MLC colados os adesivos resorcinol-formaldeído (RF) poliuretano mamona (PUR) separadas duas classes densidade. partir dos ensaios determinou-se massa específica aparente, o teor umidade, retração, inchamento, resistência ao cisalhamento madeira, na linha cola, à compressão normal às fibras, módulo elasticidade. resultados observou-se que apresentou satisfatórios para fabricação MLC, sobretudo naquelas foram utilizadas tábuas maior densidade aparente (≥ 0,587 g.cm-3) adesivo (RF).
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ژورنال
عنوان ژورنال: Materia-rio De Janeiro
سال: 2021
ISSN: ['1517-7076']
DOI: https://doi.org/10.1590/s1517-707620210003.13030