RESUMOEsta pesquisa foi desenvolvida com o objetivo de avaliar a potencialidade de uso de farinhas de soja, arroz, milho, aveia e mandioca, como extensores alternativos a farinha de trigo (testemunha) para produção de compensados. Foram produzidas 21 chapas com lâminas de madeira de Eucalyptus cloeziana, sendo três chapas por tratamento, utilizando a seguinte formulação em partes por peso: resina uréia-formaldeído -100, extensor -75, água -80 e catalisador -7. Os resultados médios de resistência da linha de cola aos esforços de cizalhamento, pelo teste seco e úmido, demostraram que as farinhas de arroz e de aveia podem ser utilizados como extensor alternativo à farinha de trigo. Palavras-chave: Extensor, uréia-formaldeído, compensado, Eucalyptus cloeziana. ABSTRACTThis research was developed aiming to evaluate the potentiality of soy bean, rice flour, maize flour, oatmeal and manioc flour, as alternative extenders to wheatmeal for plywood manufaturing. Twenty one boards were produced using Eucalyptus cloeziana venner, being three boards per treatment according to the following formulation in parts per wheight: urea-formaldheyde resin -100, extender -75, water -80 and catalyst -7. The average values of shear bonding tests (dry and wet), showed that the ricemeal and oatmeal could be used as an alternative extender to the wheatmeal.
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