Effect of crystallinity on CF/PPS performance under weather exposure: Moisture, salt fog and UV radiation

Autor(es)

Batista, Natassia L. ^{[1, 2]} ; Rezende, Mirabel C. ^[3] ; Botelho, Edson C. ^[2]

Afiliação do(s) autor(es)

^[1] McGill Univ, Dept Mech Engn, 817 Sherbrook St West, Montreal, PQ H3A 0C3 - Canada

^[2] UNESP, Dept Mat & Technol, Av Ariberto Pereira da Cunha 333, Guaratingueta, SP - Brazil

^[3] UNIFESP, Inst Sci & Technol, R Talim 330, Sao Jose Dos Campos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Polymer Degradation and Stability; v. 153, p. 255-261, JUL 2018.
• Citações Web of Science: 7

Resumo

The crystalline content of a composite can affect its performance under environmental conditions. The objective of this study is to evaluate the influence of the crystallinity degree of CF/PPS composites to hygrothermal, salt fog and ultraviolet/condensation conditioning. DSC and DMA results, and Young's modulus and ILSS values were used to evaluate the changes in the thermal and mechanical properties of CF/PPS composites after conditioning. The crystallinity degree showed to affect the water uptake and the severity of degradation. Differences up to 40% were found among the mechanical properties values depending on the crystallinity. In the hygrothermal and salt fog conditioning the least crystalline laminates were mostly degraded. In contrast, in the ultraviolet/condensation conditioning the composites with the highest crystalline contents were more affected. (C) 2018 Published by Elsevier Ltd. (AU)

• Processo FAPESP: 12/12207-6 - Estudo do efeito da cristalinidade nas propriedades mecânicas de compósitos termoplásticos com aplicações aeronáuticas
• Beneficiário: Natassia Lona Batista
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 16/07209-0 - 17th European Conference on Composite Materials
• Beneficiário: Natassia Lona Batista
• Modalidade de apoio: Auxílio à Pesquisa - Reunião - Exterior