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Physical and Thermal Characterization of Polyurethane Based on Castor Oil Composite with Bamboo Particles

Articles

Journal/Conference:

POLIMEROS-CIENCIA E TECNOLOGIA

Language:

English

Author:

Marinho Nelson P.; Nascimento Eduardo M.; Magalhaes Washington L. E.; Neto Salvador C.; Azevedo Elaine C.

Experts:

Nisgoski Silvana

Year:

2013

Volume:

23

Issue:

2

Pages:

201-205

Keywords:

Polyurethane; castor oil; bamboo; composites

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.