This research presents an advanced characterization of Balsa wood waste to evaluate its potential use as raw material for Oriented Strand Board (OSB) panel. For that, chemical, thermal and microstructural characterization of the Balsa wood particles were performed followed by the production and characterization of OSB agglomerated with castor oil polyurethane resin (Pu-Castor oil). The results indicated that the lignin content of the Balsa wood waste was lower than the content found in Pinus spp. wood, used in the industrial production of OSB panels, demonstrating the need for higher resin contents to ensure a perfect agglomeration of the particles. Microstructural analysis indicated that the Balsa wood presented characteristics to be used as a constituent raw material of OSB with Pu-Castor oil. The physical-mechanical characterization indicated that the material can be classified as OSB type 1 in accordance with the EN 300:2006 guidelines and is suitable for application in internal environments.
This study describes the potential of using an OSB panel ceiling, made of Balsa wood wastes agglomerated with a polyurethane resin based on castor oil, in prototypes of aviaries covered with fiber cement tiles. For the study, the internal temperature, relative humidity and the thermal comfort indexes, such as the environmental thermal index of productivity for broilers (IAPfc) and enthalpy, were measured and a Fuzzy logic classification system was used. The data were collected during the spring and summer, for 15 days. The results indicate that the presence of ceiling provided a reduction in the radiation transfer to the interior of the aviary prototypes, reflecting on the reduction of the ambient temperature and the thermal comfort indexes measured during spring and summer. Based on the Fuzzy classification system and on the data obtained, it can be concluded that there is a small difference between the aviaries with and without a ceiling.
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