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Physical and thermal characterization of polyurethane based on castor oil composite with bamboo particles

Composites of Polyurethane (PU) resin derived from castor oil and bamboo particles (Dendrocalamus giganteus) were prepared by pressing with 10, 15 and 20% weight of PU. The aim of this study was to develop a new application of wastes from bamboo manufacture, minimizing the negative impact to the environment, adding a resin free of volatile organic compounds (COV). The composite characterization was performed with physical and thermogravimetric analysis. The association of PU and bamboo particles produced the expected effects, including a decrease in moisture content, swelling and water absorption as PU percentage increased. The Shore D hardness increased with the percentage of resin PU in the composite.

Polyurethane; castor oil; bamboo; composites


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