2021
DOI: 10.1590/s1517-707620210001.1232
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Desenvolvimento de compósitos poliméricos reforçados com fibra da folha do buriti

Abstract: RESUMO O objetivo desta pesquisa foi estudar a viabilidade, com relação à resistência à tração, da utilização da folha de buriti como reforço em compósitos com fibras contínuas unidirecionais em matriz polimérica. Como matriz, foram utilizadas as resinas de poliéster isoftálico, de poliéster ortoftálico e de epóxi. Analisou-se a resistência à tração da fibra, das resinas e dos compósitos confeccionados com cada polímero. Testes de arrancamento foram realizados para verificar a adesão da fibra nas resinas usada… Show more

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Cited by 3 publications
(2 citation statements)
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“…GUO et al [29] discovered through direct shear tests and analysis using acoustic emission and digital image correlation techniques that the interface damage and shear failure of concrete-polymer composite structures repaired with non-water reactive polymers primarily occur at the interface. PEREIRA et al [30] confirmed that buriti leaf fibers exhibit excellent tensile strength when used as reinforcement in the preparation of unidirectional continuous fiber-reinforced polymer composites, especially when combined with an epoxy resin matrix. SINGH et al [31] proposed a semi-empirical model through experiments, successfully simulating the interface shear behavior of sand and geogrids contaminated with used diesel engine oil, demonstrating a trend of decreasing shear strength as the level of contamination increases.…”
Section: Introductionmentioning
confidence: 95%
“…GUO et al [29] discovered through direct shear tests and analysis using acoustic emission and digital image correlation techniques that the interface damage and shear failure of concrete-polymer composite structures repaired with non-water reactive polymers primarily occur at the interface. PEREIRA et al [30] confirmed that buriti leaf fibers exhibit excellent tensile strength when used as reinforcement in the preparation of unidirectional continuous fiber-reinforced polymer composites, especially when combined with an epoxy resin matrix. SINGH et al [31] proposed a semi-empirical model through experiments, successfully simulating the interface shear behavior of sand and geogrids contaminated with used diesel engine oil, demonstrating a trend of decreasing shear strength as the level of contamination increases.…”
Section: Introductionmentioning
confidence: 95%
“…1,2 In this context, new polymer composites reinforced with natural fibers have been the focus of materials researchers, due to the large amount of naturally found fibers. 3,4 Vegetable fibers have many characteristics that make their use advantageous, such as: low cost, low density, good specific strength, high elastic modulus, in addition to be non-abrasive. They are also non-toxic, can be easily modified by chemical agents, are abundant and come from renewable sources.…”
Section: Introductionmentioning
confidence: 99%