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Effects of the Vacuum Moulding Process on the Mechanical Properties of Cotton/Epoxy Composite

Research and development

Authors:

  • Tafur Cristian Lozano
    Grupo Innovación de Procesos de Manufactura e Ingeniería de Materiales, Universidad Nacional de Colombia, Bogota, Colombia
  • Mora Edgar Espejo
    Grupo Análisis de Falla e Ingeniería de Superficies, Universidad Nacional de Colombia, Bogota, Colombia
  • Baracaldo Rodolfo Rodríguez
    Grupo Innovación de Procesos de Manufactura e Ingeniería de Materiales, Universidad Nacional de Colombia, Bogota, Colombia

Nr DOI: 10.5604/01.3001.0011.7309

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Abstract:

A study on the effect of the vacuum assisted resin transfer moulding (VARTM) manufacturing process on the mechanical properties of cotton/epoxy composite is presented in this investigation. Woven cotton was used as reinforcing material embedded in epoxy resin. The woven cotton was treated with sodium hydroxide for one hour at concentrations of 0% to 20%. The tensile test showed that the untreated material had the highest ultimate strength and Young’s modulus. Observation of the fracture surface by scan electronic microscopy (SEM) was compared to the hand lay-up process as well as the results of the tensile test. The comparison showed that the VARTM process presents better mechanical properties than the hand lay-up process due to the reduction in discontinuities observed by means of
optical microscopy.

Tags:

natural fibre, composite, cotton, tensile, fractography.

Citation:

Tafur CL, Mora EE, Baracaldo RR. Effects of the Vacuum Moulding Process on the Mechanical Properties of Cotton/Epoxy Composite. FIBRES & TEXTILES in Eastern Europe 2018; 26, 3(129): 93-97. DOI: 10.5604/01.3001.0011.7309

Published in issue no 3 (129) / 2018, pages 93–97.

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