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Verification of Applicability of the Polyurethane Adhesive Based on Castor Oil in the Manufacture of Glued Laminated Bamboo

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Journal of Chemistry and Chemical Engineering 2014年第9期8卷 898-905页

作者： Flavio Cardoso Ventura bruno perazzelli farias ramos Marco Antonio dos Reis Pereira FATEC JAHU Faculty of Technology Jahu Jahu 17212-599 Brazil School of Architecture Arts and Communication Sao Paulo State University Bauru 17033-360 Brazil Department of Mechanical Engineering Sao Paulo State University Bauru 17033-360 Brazil

The current concern with the environment promotes the development of new technologies for production with use of alternative materials, from renewable resources, and changes in production processes, having as main objective the reduction of environmental impact. One of the alternatives for cleaner production is the use of castor oil derivatives instead of non-renewable sources, such as adhesives based on PVA （polyvinyl acetate）, applied in the manufacturing process of glued laminated bamboo. Based on the versatility of the bamboo laminate and the castor oil, and from the perspective of sustainability, this study aims to contribute to the application of new materials and processes, used in the manufacturing industry, by proposing the use of the polyurethane adhesive based on castor oil for glued laminated bamboo manufacturing, which can later be used in the manufacture of several products. To verify the applicability of the polyurethane adhesive based on castor oil in the glued laminated bamboo manufacture, mechanical tests of traction and shearing of the glue sheet were performed in specimens of the said material, and the results were compared with the Cascorez 2590 and Waterbond adhesives. The results showed that the polyurethane adhesive based on castor oil, in the traction test, has superior performance than the Waterbond adhesive and slightly below than the Cascorez 2590 adhesive, but in the shear test, the polyurethane adhesive based on castor oil presented a slightly inferior performance than the other two adhesives used in the comparison.

关键词： Design castor oil glued laminated bamboo sustainable development PVA adhesives.

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