Evaluation of mechanical properties in carbon/epoxy composites with different curing parameters

Mariana H. F. Fonseca; Cândido J. S. Lobo; Arthur V. N. A. Lima; Fabrício J. N. Cavalcante; Jorge L. Cardoso; Zoroastro T. Vilar

doi:10.17533/udea.rcm.342159

Autores/as

Mariana H. F. Fonseca Federal University of the Semi-Arid Region
Cândido J. S. Lobo Federal University of Ceará
Arthur V. N. A. Lima Federal University of Ceará
Fabrício J. N. Cavalcante Federal University of the Semi-Arid Region
Jorge L. Cardoso Federal University of Ceará
Zoroastro T. Vilar Federal University of the Semi-Arid Region

DOI:

https://doi.org/10.17533/udea.rcm.342159

Palabras clave:

composites, carbon fiber, epoxy, properties

Resumen

The intense research on the parameters involved in the composite materials grows every day due to the use of these materials in areas such as automotive, military and aeronautics. The use of composite materials is due to the possibility of combining desirable properties with the joining of metals, ceramics and/or polymers. The aim of this work was to evaluate the different conditions of improvement of the fabrication and curing process of the carbon fiber composite and epoxy resin, verifying if the differences are significant with the variations of resin volumetric fraction and curing process. For this purpose, the curing occurred due to the action of the vacuum, with the aid of the hydraulic press at a pressure of 1tnf with no pressure, all for 5 hours. For each type of curing process, the volumetric fraction of the resin was varied in 15%, 25%, 35% and 45%. Then, mechanical tensile, flexural and DMA tests were carried out and the results showed that there is an influence of the curing processes on the performance of the composites. The increase of the volumetric fraction of resin with hydraulic press and with no pressure showed a tendency of increase in the properties of tensile and flexural, respectively. In addition, for the vacuum process, it showed a better thermal stability. With this, depending on the application, one can choose the most suitable curing process.

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Biografía del autor/a

Mariana H. F. Fonseca, Federal University of the Semi-Arid Region

Department of Environmental and Technological Sciences, Federal University of the Semi-Arid Region, Mossoró, Brazil.

Cândido J. S. Lobo, Federal University of Ceará

Department of Mechanical Engineering, Federal University of Ceará, Campus Russas, Russas, Brazil.

Arthur V. N. A. Lima, Federal University of Ceará

Department of Mechanical Engineering, Federal University of Ceará, Campus Russas, Russas, Brazil.

Fabrício J. N. Cavalcante, Federal University of the Semi-Arid Region

Department of Environmental and Technological Sciences, Federal University of the Semi-Arid Region, Mossoró, Brazil.

Jorge L. Cardoso , Federal University of Ceará

Department of Metallurgical and Materials, Federal University of Ceará, Fortaleza, Brazil.

Zoroastro T. Vilar , Federal University of the Semi-Arid Region

Department of Environmental and Technological Sciences, Federal University of the Semi-Arid Region, Mossoró, Brazil.

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