Processability and tensile performance of continuous glass fiber/polyamide laminates for structural load-bearing applications
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The performance of continuous E-glass/polyamide 6 laminates processed using distinct hot press moulding cycles was assessed and compared with similar E-glass/epoxy and E-glass/polypropylene laminates. The effects of peak processing temperature, preheating time, and temperature dwell time on laminate consolidation and quality were observed using optical and scanning electron microscopy. Corresponding quasi-static tensile tests were performed on 8, 8, [02/902]s, [04/904]s and [±45]2s laminates. Compared to E-glass/epoxy composites, the 8 specimens presented a similar strength, while the 8 specimens exhibited a much lower strength due to weaker fiber/matrix adhesion. Conversely, the E-glass/polyamide cross-ply laminates had a markedly higher strength while exhibiting the same modulus. This is because of higher toughness; the polyamide matrix provides as was proved by higher transverse matrix cracking strain of E-glass/polyamide. These findings support the feasibility of producing cost-effective and high-quality E-glass/polyamide laminates for use in high-performance applications, which is an attractive alternative to more conventional glass/epoxy laminates.
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M Nikforooz, M Golzar, MM Shokreih, J Montesano (2018). Processability and tensile performance of continuous glass fiber/polyamide laminates for structural load-bearing applications. UWSpace. http://hdl.handle.net/10012/15426
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