Izod Impact Tests in Polyester Matrix Composites Reinforced with Banana Fibers

Monteiro, Sérgio Neves; Margem, Frederico Muylaert; Assis, Foluke Salgado de; Loiola, Rômulo Leite; Oliveira, Michel Picanço

doi:10.4028/www.scientific.net/msf.775-776.261

Cited by 15 publications

(14 citation statements)

References 18 publications

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“…Banana fiber (Musaceae family), illustrated in Fig.1, with average diameter of 0.2 mm could reach tensile strength higher than 700 MPa. Other investigations on the strength of banana fiber had already revealed significant results [11,12]. These reported results have shown that polymer composites reinforced with banana fibers present very interesting potential improvement.…”

Section: Introductionsupporting

confidence: 48%

Under Pressure Tensile Epoxy Composites With High Amount of Banana Fiber

Assis¹,

Margem²,

Monteiro³

et al. 2018

ABM Proceedings

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Natural fibers are attracting the interest of engineering sectors owing to specific advantages such as lightweight and lower cost as well as for their inherent condition of being renewable, biodegradable, recyclable and environmental correct material with respect to CO2 emission. The banana fiber is nowadays recognized by its mechanical properties. It is known that with the increase of fibers volume fraction the composite significant increases its tensile strength. This was obtained with amounts up to 30% in volume of banana fiber. However no higher volume of fibers was able to be molded in a composite plate until now. Thus the present work aims to study higher volumes of fiber in terms of the influence on the tensile strength of specimens prepared under 5 tons of pressure. The fibers were previously washed and dried in an oven at 60ºC, after that poured together with the epoxy resin and catalyst mixture in the metal molds bone-shaped, and pressured to ensure specimens quality. The tensile strength increased significantly with higher amounts of banana fiber incorporated in the epoxy matrix. This better performance can be directly related to the fracture obstacle imposed by the fibers as well as the type of cracks resulting from the fiber/matrix interaction.

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Section: Introductionsupporting

confidence: 48%

Under Pressure Tensile Epoxy Composites With High Amount of Banana Fiber

Assis¹,

Margem²,

Monteiro³

et al. 2018

ABM Proceedings

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“…Recent works on the impact resistance of thermoset polymer composites reinforced with long and aligned lignocellulosic fibers [10][11][12][13][14][15], revealed a much higher value for the impact energy. In particular, a polyester composite reinforced with 40% of curaua fiber reached 170 J/m [11], which is more than three times the maximum obtained by any short-cut and randomly oriented lignocellulosic fiber composites [9]. This remarkable result served as motivation for a work to confirm it with a different impact method, the Charpy test.…”

Section: Introductionmentioning

confidence: 69%

Comparative Izod Impact Tests of Epoxy Composite Reinforced With Curaua Fibers and Fiberglass

Maciel¹,

Ribeiro²,

Ferreira³

et al. 2017

Anais Do Congresso Anual Da ABM

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ResumoNos últimos anos, especialmente fibras naturais extraídos de plantas lignocelulósico, ganharam atenção devido ao seu desempenho como engenharia de reforço compósito polímero. Por exemplo, as fibras lignocelulósicas extraídos a partir das folhas da planta curauá (Ananas acutifolius) exibir um potencial de reforço devido à sua relativamente alta resistência. As fibras, entre 0 a 30% em volume de, foram misturados com resina de poliéster sob pressão num molde metálico, e curada à temperatura ambiente durante 24 horas. Este trabalho procura avaliar a resistência ao impacto deste tipo de matriz de epóxi fibra de reforço. A resistência ao impacto aumentado substancialmente com a quantidade relativa de fibras de curauá reforço do compósito. Este desempenho foi associada com a resistência imposta pelas fibras e o comportamento de propagação da fissura Palavras-chave: Fibras de curaua; Ensaio de impacto izod; Matriz epoxy. ENSAIO IMPACTO IZOD COMPARATIVO ENTRE COMPÓSITOS EPOXY REFORÇADO COM FIBRAS DE CURAUÁ E FIBRA DE VIDRO AbstractIn recent years natural fibers, especially lignocellulosic extracted from plants, have gained attention owing to their engineering performance as polymer composite reinforcement. For instance, the lignocellulosic fibers extracted from the leaves of the curaua plant (Ananas erectifolius) display a reinforcement potential owing to their relatively high strength. The fibers, between 0 to 30% in volume, were mixed with polyester resin under pressure in a metallic mold, and cured at room temperature for 24 hours. This work attempts to evaluate the impact resistance of this type of fiber reinforcing epoxy matrix. The impact resistance increased substantially with the relative amount of curaua fiber reinforcing the composite. This performance was associated with the resistance imposed by the fibers and the crack propagation behavior.

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“…Hemp is one the lignocellulosic fiber with least knowledge as far as mechanical properties are concerned. Characterizations of these composites are being carried out for different polymer matrices and mechanical tests [12][13][14][15][16][17][18][19][20][21][22]. However, no tensile characterization was done so far for polymer composites reinforced with hemp fibers.…”

Section: Introductionmentioning

confidence: 99%

Tensile Properties of Epoxy Composites Reinforced With Hemp Fibers

Neves¹,

Rohen²,

Vieira³

et al. 2018

ABM Proceedings

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Synthetic fibers have been gradually replaced by lignocellulosic fibers. Compared to the synthetic fiber, natural fiber showed economic and environmental advantages presenting interfacial characteristics with polymer matrices that favor the impact energy absorption by the composite structure. However, so far little has been reported about the hemp fiber embedded in polymer matrices, such as tensile properties. This study aims to evaluate the resistance in tensile tests of epoxies composites reinforced with different percentages of hemp fiber. Tensile tests were submitted with percentage of 0%, 10%, 20% and 30% incorporated hemp fiber in epoxy matrix. The tensile strength and deformation substantially increased the relative amount of hemp fibers incorporated into the polymeric matrix.

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Izod Impact Tests in Polyester Matrix Composites Reinforced with Banana Fibers

Cited by 15 publications

References 18 publications

Under Pressure Tensile Epoxy Composites With High Amount of Banana Fiber

Under Pressure Tensile Epoxy Composites With High Amount of Banana Fiber

Comparative Izod Impact Tests of Epoxy Composite Reinforced With Curaua Fibers and Fiberglass

Tensile Properties of Epoxy Composites Reinforced With Hemp Fibers

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