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

Author(s)

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

Affiliation

^[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

• Document type: Journal article
• Source: Polymer Degradation and Stability; v. 153, p. 255-261, JUL 2018.
• Web of Science Citations: 7

Abstract

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)

• FAPESP's process: 12/12207-6 - Study of the crystallinity effect of mechanical properties of thermoplastic composites with aeronautical application
• Grantee: Natassia Lona Batista
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 16/07209-0 - 17th European Conference on Composite Materials
• Grantee: Natassia Lona Batista
• Support Opportunities: Research Grants - Meeting - Abroad