Produção de painéis aglomerados homogêneos e multicamadas de Melia azedarach (Cinamomo) e Pinus taeda com diferentes teores de resina

CERNE

Iwakiri, Setsuo³  Matos, Jorge Luis Monteiro de³  Trianoski, Rosilani²  Prata, José Guilherme¹ 

[1] Engenheiro Florestal, Professor Doutor em Engenharia Florestal - Universidade Federal do Paraná$$;Engenheira Industrial Madeireira, Doutoranda em Engenharia Florestal - Universidade Federal do Paraná$$;Professor Doutor em Engenharia Florestal - Unviersidade Federal do Paraná$$

关键词: Homogeneous and multilayer panels;    alternative species;    resin content;    urea-formaldehyde.;   

DOI  :  10.1590/S0104-77602012000300014

来源: Universidade Federal de Lavras-UFLA

【 摘 要 】

This research was developed to evaluate the quality of homogeneous and multilayer particleboards manufactured from Melia azedarach wood and Pinus taeda with different resin contents. The experimental boards were manufactured with the nominal density of 0,75 g/cm³, using the urea-formaldehyde resin in the proportion of 6% and 8% (solid content based on oven dried wood particles) in the internal layer and 8% and 10% in the external layers. The boards were pressed at the specific pressure of 40 kgf/cm² , temperature of 160ºC and press time of 8 minutes. The evaluations of the physical and mechanical properties of the boards showed the high potentiality of Melia azedarach for particleboard manufacture. The increase of resin content in the internal and external layers improved the properties of water absorption and thickness swelling. However, the mechanical properties were not affected.

【 授权许可】

Unknown