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Vol. 2. Issue 1.
Pages 2-9 (January - March 2013)
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Vol. 2. Issue 1.
Pages 2-9 (January - March 2013)
Original Article
DOI: 10.1016/j.jmrt.2013.03.006
Open Access
Processing and properties of continuous and aligned curaua fibers incorporated polyester composites
Sergio Neves Monteiroa,
Corresponding author

Corresponding author.
, Felipe Perisse Duarte Lopesb, Denise Cristina Oliveira Nascimentob, Ailton da Silva Ferreirab, Kestur Gundappa Satyanarayanac
a Materials Science Department, Instituto Militar de Engenharia (IME), Rio de Janeiro, RJ, Brazil
b Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Advanced Materials Laboratory (LAMAV), Campos dos Goytacazes, RJ, Brazil
c Acharya Institutes, BMS College of Engineering & Poornapragna Institute of Scientific Research, Bangalore, India
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This paper presents systematic studies carried out on the processing and characterization of continuous and aligned curaua fibers-polyester composites. Laminates of these composites with (0 to 40 vol. %) curaua fibers were press-molded at room temperature, cured for 24hours and tested for strength properties. Resulting fracture surfaces were analyzed by scanning electron microscope. Composites showed high flexural properties, which is attributed to a complex mechanism of individual interaction of the microfibrils with the matrix during crack initiation and further propagation through a model of stress concentration due to the specific fiber/matrix interface geometry. Impact test results showed a remarkable increase in the notch toughness with the amount of incorporated curaua fibers, which is attributed to the difficulty of breaking down the fibers and preferential de-bonding of the fiber/matrix interface, which in turn contributes to an elevated absorbed energy.

Curaua fiber
Polyester composites
Fiber/matrix bond
Mechanical properties
Failure criterion
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Copyright © 2013. Brazilian Metallurgical, Materials and Mining Association
Journal of Materials Research and Technology

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