Fabricação de materiais compósitos sanduíche reforçados com fibra de juta e resíduos de madeira

Dias, Rodrigo da Silva; Gomes, Igor dos Santos; Vilhena, Edil Silva de; Pereira, Léo César de Oliveira; Lopes, Carlos Eduardo Pinto; Vilhena, Edielson Silva de; Oliveira, Antonio Bruno da Silva; Ribeiro, Maurício Maia; Silva, Samuel de Castro; Araújo, Leonardo Rios; Júnior, Antonio Henrique da Silva Bitencourt; Fujiyama, Roberto Tetsuo

doi:10.34117/bjdv5n6-141

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“…When it comes to meeting specific properties, composite materials stand out because, as they are obtained by mixing two or more materials, they have properties not found in each of the components individually. The reasons for its increasing use are due to its characteristic properties, such as high values of strength and rigidity and lightness (Dias, 2019;Souza, 2020;Peças, 2018).…”

Section: Introductionmentioning

confidence: 99%

Properties of flexural and impact of matrix composites polyester reinforced with short lignocellulosic fibers

Silva

Ribeiro

Rodrigues

et al. 2022

RSD

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Composite materials stand out for enabling the development of new materials that are environmentally friendly, whose manufacturing processes and waste are increasingly less harmful, associated with good mechanical properties. In this context, this work sought to investigate the mechanical behavior in flexural and impact of polyester matrix composites with the inclusion of short fibers of sisal, piassava, raffia, mallow and jute arranged randomly. The mechanical properties of flexural were evaluated according to ASTM D 790 and the impact toughness Charpy with the ASTM D 6110 standard. The results showed that when subjected to flexural stresses, the composites presented resistance of 112 .12 MPa for the neat matrix and 35.21; 34.45; 27.29; 25.89 and 20.56 MPa with the inclusion of sisal, piassava, raffia, mallow and jute fibers, respectively. As for the impact test, they showed values of 31.50 kJ/m² for the neat matrix and 57.06; 52.52; 48.03; 38.02; 37.65 kJ/m² with the inclusion of sisal, piassava, raffia, mallow and jute fibers, respectively. Then, the fracture surface of the composites was analyzed with a microscope in order to correlate the fracture aspects with the mechanical properties.

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Section: Introductionmentioning

confidence: 99%