Published

2012-01-01

The influence of alkali treatment on banana fibre's mechanical properties

Influencia del tratamiento alcalino sobre las propiedades mecánicas de la fibra de plátano

Keywords:

Banana fibre, alkali treatment, mechanical property (en)
Fibra de plátano, Tratamiento alcalino, Propiedades mecánicas (es)

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Authors

  • Julio César Mejía Osorio Universidad Nacional de Colombia
  • Rodolfo Rodríguez Baracaldo Universidad Nacional de Colombia
  • Jhon Jairo Olaya Florez Universidad Nacional de Colombia

This work analyses the effect of alkali treatment on the mechanical properties of banana fibre (Musa Paradisiaca). Fibres were extracted from the pseudostem by a defibring machine; they were mercerised and modified by 5% NaOH (w/v) alkali treatment. Morphological characterisation showed that treated fibres' surface was rougher than that of untreated fibres. Mechanical characterisation indicated that Young's modulus, ultimate tensile strength and strain became decreased by increasing both treated and untreated fibres' diameter.

Este trabajo estudia el efecto del tratamiento alcalino sobre las propiedades mecánicas de la fibra de plátano (Musa paradisiaca). Las fibras fueron extraídas del seudotallo del plátano empleando una maquina desfibradora. Seguidamente fueron mercerizadas y modificadas mediante tratamiento alcalino con NaOH al 5% (m/v). El análisis morfológico evidenció que la rugosidad de la superficie es mayor en las fibras tratadas que en las no tratadas. La caracterización mecánica reveló que el módulo de Young, la resistencia máxima a la tracción y la deformación disminuyen con el aumento del diámetro de la fibra, tanto para las fibras tratadas como para las no tratadas.

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References

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