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Advisor(s)
Abstract(s)
PLA composites were reinforced with a natural fiber, flax fiber. A Taguchi L18 matrix
was created and for each test 6 specimens were run, varying the temperature, fiber
percentage, fill percentage of the specimens, and whether or not the flax fiber was treated.
As for the treatment of flax, when applicable, it was treated with sodium hydroxide
(NaOH). The temperatures used are 190°C, 200°C and 220°C. The percentage of fiber
varies in 10, 15 and 20 fiber strands. The filling percentage of the specimen varies
between 25%, 50% and 100%. This was followed by a study of the tensile and flexural
strength of the reinforced composites. The optimal combinations for increased tensile and
flexural strength were obtained with the following parameters for tensile: with/without
chemical treatment, with a temperature of 200°C, 10 fibers and a filler percentage of
100%. For bending the parameters are: with chemical treatment, a temperature of 190°C,
10 fibers and a fill percentage of 100%. With the confirmation tests a value for the
maximum tensile stress of 19.38 MPa and for bending of 73.20 MPa was obtained.
Description
Keywords
Tensile and flexural strength Flax fiber Reinforced composites Chemical treatment
Citation
Paulo, A.B.I.; Santos, Jorge; Ribeiro, J.E.; Rocha, João (2022). Tensile and flexural strength of flax fiber reinforced composites with and without chemical treatment. In 1st International Congress on Additive Manufacturing. Bragança
Publisher
Instituto Politécnico de Bragança