Mechanical characterization of polymeric composites reinforced with para-aramid after thermal exposure

Luiz Felipe Peruchi de Godoy Guidugli; Ariandy Botezini; Sidiney Peruchi de Godoy; Erika Peterson Gonçalves

doi:10.59400/mtr3315

Mechanical characterization of polymeric composites reinforced with para-aramid after thermal exposure

Luiz Felipe Peruchi de Godoy Guidugli Instituto de Pesquisa e Desenvolvimento – IPD, Universidade do Vale do Paraíba, UNIVAP. Av. Shishima Hifumi, 2911, CEP: 12244-000, São José dos Campos, SP, Brazil; ESRA Engenharia Serviços e Representação Aeronáutica LTDA, Rua Loanda, 982, CEP: 12.238-330, São José dos Campos, SP, Brazil
Ariandy Botezini Instituto de Pesquisa e Desenvolvimento – IPD, Universidade do Vale do Paraíba, UNIVAP. Av. Shishima Hifumi, 2911, CEP: 12244-000, São José dos Campos, SP, Brazil
Sidiney Peruchi de Godoy ESRA Engenharia Serviços e Representação Aeronáutica LTDA, Rua Loanda, 982, CEP: 12.238-330, São José dos Campos, SP, Brazil
Erika Peterson Gonçalves Instituto de Pesquisa e Desenvolvimento – IPD, Universidade do Vale do Paraíba, UNIVAP. Av. Shishima Hifumi, 2911, CEP: 12244-000, São José dos Campos, SP, Brazil

Article ID: 3315

DOI: https://doi.org/10.59400/mtr3315

Keywords: para-aramid; polymeric composite; thermal exposure; mechanical integrity

Abstract

In this study, heat treatments were applied to samples of para-aramid fiber-reinforced epoxy at two different temperatures (250 and 500 ℃) for five (5) min. The effects on mass and mechanical properties were investigated by tensile tests according to ASTM-D3039-00 and compared with untreated samples. In addition, the fiber/matrix interface was verified by scanning electron microscopy (SEM). At both exposure temperatures, a mass loss of 2.7% and 8.9% was observed for samples submitted to 250 ℃ and 500 ℃, respectively. However, the mechanical tensile strength in both cases was improved, being more significant in samples exposed to a temperature of 500 ℃, with an increase of more than 30% in tensile strength. Although the presence of delamination in the samples was not verified in the visual analysis, in the micrographs studied, it was observed that the decomposition of the fibers and the matrix causes localized delamination between the weft, the warp, and the matrix of the composites after the test.

Published

2025-09-05

How to Cite

de Godoy Guidugli, L. F. P., Botezini, A., de Godoy, S. P., & Gonçalves, E. P. (2025). Mechanical characterization of polymeric composites reinforced with para-aramid after thermal exposure. Materials Technology Reports, 3(2), 3315. https://doi.org/10.59400/mtr3315

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Vol. 3 No. 2 (2025)

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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