Open AccessMechanical behavior of mallow fabric reinforced polyester matrix composites
Author(s) -
Ygor Macabú de Moraes,
Carolina Gomes Dias Ribeiro,
C. L. Ferreira,
Eduardo de Sousa Lima,
Jean Igor Margem,
Lúcio Fábio Cassiano Nascimento,
Sérgio Neves Monteiro
Publication year - 2018
Publication title -
journal of materials research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.832
H-Index - 44
eISSN - 2214-0697
pISSN - 2238-7854
DOI - 10.1016/j.jmrt.2018.02.013
Subject(s) - materials science , composite material , ultimate tensile strength , resilience (materials science) , reinforcement , brittleness , polyester , polyester resin , composite number , woven fabric , scanning electron microscope , fiber
Woven fabrics made of a natural lignocellulosic mallow fiber have been used for a long time in common clothes. Recently, these fabrics are being considered as reinforcement for engineering composites. This work investigates the basic mechanical behavior of polyester composites reinforced with up to 40 vol% of mallow fabric. Room temperature tensile tests allow the evaluation of properties, such as the ultimate strength, elastic modulus, resilience and total strain. An improvement in these properties was found with increasing amount of mallow fabric in the composite. Indeed, a significant increase in strength, modulus and resilience occurred up to 40 vol% of fabric reinforcement. A slight increase was also observed in the total strain. Fracture analysis by scanning electron microscopy revealed that this improved performance of the reinforced composites might directly be associated with arrest of cracks propagation in the brittle polyester matrix by the mallow fibers in the fabric.
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