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Revista Facultad Nacional de Agronomía Medellín

versão impressa ISSN 0304-2847

Resumo

TAKEUCHI TAM, Caori Patricia  e  CORTES CORTES, Juan Carlos. STRENGTHENING OF THE BAMBOO GUADUA CHAIN WITH PRODUCTION OF LAMINATES. Rev. Fac. Nac. Agron. Medellín [online]. 2011, vol.64, n.1, pp.5983-5991. ISSN 0304-2847.

In this paper, the process of cutting the bamboo guadua, the production of slats, the manufacture of laminates and results of tests in slats and laminated samples made with four types of glue: -melamine, resorcinol, polyvinyl acetate and natural glue are presented. It was found that the longitudinal shrinkage of the bamboo guadua slats is relatively low and the relationship between the tangential and radial shrinkage was close to one showing the feasibility of using bamboo for laminated processes. The following average values of resistance were found: for parallel shear 47 kg•cm-2 (melamine), 51 kg•cm-2 (resorcinol), 17 kg•cm-2 (PVA) and 32 MPa kg•cm-2 (kola); for perpendicular shear 50 kg•cm-2 (melamine), 43 kg•cm-2 (resorcinol), 49 kg•cm-2 (PVA) and 37 kg•cm-2 (kola); for perpendicular tension 8,3 kg•cm-2 (melamine), 4,9 kg•cm-2 (resorcinol), 1,7 kg•cm-2 (PVA) and 3,7 MPa kg•cm-2 (kola); for parallel compression 419 kg•cm-2 (melamine), 424 kg•cm-2 (resorcinol), 506 kg•cm-2 (PVA) and 375 kg•cm-2 (kola) and for perpendicular compression 216 kg•cm-2 (melamine), 206 kg•cm-2 (resorcinol), 245 kg•cm-2 (PVA) and 240 kg•cm-2 (kola). In general, the specimens made with melamine and resorcinol showed a better mechanical performance.

Palavras-chave : Biological matherials; cut process; strength; adhesives for laminated.

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