Journal of Materials Research and Technology Journal of Materials Research and Technology
J Mater Res Technol 2017;6:411-6 DOI: 10.1016/j.jmrt.2017.09.003
Original Article
Bending test in epoxy composites reinforced with continuous and aligned PALF fibers
Gabriel Oliveira Glóriaa, Maria Carolina Andrade Telesa, Anna Carolina Cerqueira Nevesa, Carlos Maurício Fontes Vieiraa, Felipe Perissé Duarte Lopesa,, , Maycon de Almeida Gomesb, Frederico Muylaert Margemc, Sergio Neves Monteirod
a Universidade Estadual do Norte Fluminense – UENF, Campos dos Goytacazes, RJ, Brazil
b Instituto Federal Fluminense – IFF, Campos dos Goytacazes, RJ, Brazil
c Faculdade Redentor – FAC, Itaperuna, RJ, Brazil
d Military Institute of Engineering, IME, Rio de Janeiro, RJ, Brazil
Received 15 June 2017, Accepted 08 September 2017
Abstract

Sustainable actions aiming to prevent increasing worldwide pollution are motivating the substitution of environmentally friendly materials for conventional synthetic ones. A typical example is the use of natural lignocellulosic fiber (LCF) as reinforcement of polymer composites that have traditionally been reinforced with glass fiber. Both scientific research and engineering applications support the use of numerous LCFs composites. The pineapple fiber (PALF), extracted from the leaves of Ananas comosus, is considered a LCF with potential for composite reinforcement. However, specific mechanical properties and microstructural characterization are still necessary for this purpose. Therefore, the objective of this short work is to evaluate the flexural properties, by means of three points, bend tests, of epoxy composites incorporated with up to 30vol% of PALF. Results reveal that continuous and aligned fibers significantly increase the flexural strength. Scanning electron microscopy disclosed the fracture mechanism responsible for this reinforcement.

Keywords
Pineapple fibers, PALF, Flexural properties, Bending test, Epoxy composites, Fracture mechanism
J Mater Res Technol 2017;6:411-6 DOI: 10.1016/j.jmrt.2017.09.003