Differential Scanning Calorimetry Tests of Epoxy and Polyester Composites Reinforced with Giant Bamboo Fibers

Abstract:

Despite the benefits associated with the use of natural fibers instead of synthetic ones as composite reinforcement, there are still some limitations to their application. Among the disadvantages associated with natural fibers stands the low thermal resistance. This imposes restrictions to the composite utilization when it is exposed to temperatures above 100 oC. For one point, the hydrophilic nature of lignocellulosic fibers causes absorption of water, but at high temperatures this water is lost, what produce pores and flaws in the composite polymer matrix. Moreover, the fiber cellulose, hemicellulose and lignin are degraded at higher temperatures. The objective of the present work was to conduct a comparative differential scanning calorimetric investigation between polyester and epoxy matrixes composites incorporated with different volume fractions of giant bamboo fibers. A substantial loss of mass was found up to 120 oC. The DSC curves revealed a variation in the enthalpy as a function of the giant bamboo fiber fractions and the corresponding polymeric matrix.

• Periodical: Materials Science Forum (Volume 869)
• Pages: 270-276
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.869.270
• Online since: August 2016
• Authors: Gabriel Oliveira Glória*, Ygor Macabu de Moraes, Carolina Gomes Dias Ribeiro, Lucas Barboza de Souza Martins, Frederico Muylaert Margem, Fabio de Oliveira Braga, Sergio Neves Monteiro
• Keywords: Differential Scanning Calorimetry, DSC, Epoxy Composite, Giant Bamboo Fiber, Polyester Composites

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