Thermal Characterization of Epoxy Matrix Reinforced with Buriti Fibers by the Photoacoustic Technique

Altoé, Giulio Rodrigues; Margem, Frederico Muylaert; Monteiro, Sérgio Neves; Faria, Roberto da Trindade; Cordeiro, Thallis

doi:10.1002/9781118888056.ch51

Cited by 2 publications

(1 citation statement)

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“…1, native of tropical regions in South America, is relatively unknown. Recent investigations on the technical properties of the buriti petiole fiber (buriti fiber for short) [24][25][26][27][28][29][30][31][32][33][34][35][36] demonstrated a potential for polymer matrix reinforcement. In order to complement the information on the mechanical properties of epoxy composites reinforced with continuous and aligned buriti fibers, the present work evaluated the flexural properties of epoxy composites reinforced with continuous and aligned buriti fibers.…”

Section: Introductionmentioning

confidence: 99%

Bending Mechanical Behavior of Epoxy Matrix Reinforced with Buriti Fiber

Barbosa

Altoé

Loiola

et al. 2016

MSF

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Environmentally correct composites, made from natural fibers, are among the most investigated and applied today. In this paper, the mechanical behavior of epoxy matrix composites reinforced with continuous buriti fiber, through bending tensile tests was investigated. Specimens containing 0, 10, 20 and 30% in volume of buriti fiber were aligned along the entire length of a mold to create plates of these composites. The plates were cut following the ASTM standard to obtained bending test specimens. The test was conducted in an Instron Machine and the fractured specimens were analyzed by SEM. The results showed an increase in the materials flexural properties with the increase in volume fraction of buriti fiber.

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Section: Introductionmentioning

confidence: 99%

Bending Mechanical Behavior of Epoxy Matrix Reinforced with Buriti Fiber

Barbosa

Altoé

Loiola

et al. 2016

MSF

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Buriti Fabric Reinforced Epoxy Composites as a Novel Ballistic Component of a Multilayered Armor System

Demosthenes¹,

Luz²,

Nascimento³

et al. 2022

Sustainability

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Buriti Fibers extracted from the leafstalk of palm tree, Mauritia flexuosa, native to the Amazon region, have been investigated as a reinforcement of polymer matrix composites. Recently, the fabric made from buriti fibers was also studied as a possible reinforcement of epoxy composites. In particular, the preliminary results of a 10 vol% buriti fabric epoxy composite in a multilayered armor system (MAS) displayed a satisfactory backface signature (BFS) but the composite target was not able to preserve its integrity after the ballistic impact. This motivated the present work, in which we carry out a complete statistical investigation of the ballistic performance of 10, 20, and 30 vol% buriti fabric epoxy composites as a MAS second layer against 7.62 mm rifle ammunition. BFS, associated with the depth of penetration in a clay witness simulating a human body, disclosed values of 18.9 to 25 mm, statistically similar and well below the lethal value of 44 mm specified by the international standard. Absorbed energy in stand-alone ballistic tests of 163–190 J for armor perforation were also found to be statistically higher than 58 ± 29 J obtained for the conventionally applied synthetic aramid fabric. The 30 vol% buriti fabric composites maintained the integrity of the MAS second layer, as required for use in body armor. Failure mechanisms found for the 10 vol% and 20 vol% buriti fabric composites by macro analysis and scanning electron microscopy confirmed the importance of a higher amount such as 30 vol% in order to achieve effective ballistic protection.

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Thermal Characterization of Epoxy Matrix Reinforced with Buriti Fibers by the Photoacoustic Technique

Cited by 2 publications

References 21 publications

Bending Mechanical Behavior of Epoxy Matrix Reinforced with Buriti Fiber

Bending Mechanical Behavior of Epoxy Matrix Reinforced with Buriti Fiber

Buriti Fabric Reinforced Epoxy Composites as a Novel Ballistic Component of a Multilayered Armor System

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