A new approach for the reuse of scrap carbon fiber in high-added value continuous fiber reinforced composite structures

Koçoğlu, Hürol; Kodal, Mehmet; Altan, Cengiz; Özçelik, Babur; Özkoç, Güralp

doi:10.1016/j.compositesa.2022.107272

Cited by 3 publications

(6 citation statements)

References 43 publications

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“…Contrary to the increase in mechanical properties observed with GF reinforcement in a previous study, 49 the erosion resistance (reverse of the erosion rate) of GF/PA6.6 was lower than that of neat PA6.6. This can be attributed to the fragile nature of GF.…”

Section: Resultscontrasting

confidence: 99%

“…Silane treatment is known to improve the fiber-matrix interface properties. 64,65 In the previous study, 49 similar improved interfacial properties, which increase mechanical properties, between the matrix and GF due to the silane treatment were observed. Upon analyzing the erosion rates of composite laminates produced using silanized GF, the effects of silanization on erosion rate displayed divergent trends.…”

Section: Solid Particle Erosion Studiessupporting

confidence: 62%

“…In the GF/PA6.6 laminate composite with as‐received GF, 49 the relatively weak interfacial adhesion between PA6.6 and glass fabric results in the two layers acting as separate entities during scratching. This lack of bonding leads to easy deformation, as evidenced by the significant penetration depth observed in this composite (Figure 11).…”

Section: Resultsmentioning

confidence: 99%

“…In a previous study, 49 the mechanical and dynamic mechanical properties of hybrid composites produced using a novel approach were investigated. The findings demonstrate that the incorporation of scrap CF in the hybrid composites led to improvements in their mechanical and dynamic mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Solid particle erosion and scratch behavior of novel scrap carbon fiber/glass fabric/polyamide 6.6 hybrid composites

et al. 2023

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This study investigated the tribological performance of hybrid composites composed of scrap carbon fiber (CF), glass fabric (GF), and polyamide 6.6 (PA6.6) through an innovative approach for reusing scrap CFs in high‐value composite structures. The experimental setup included CF/GF/PA6.6 hybrid composite laminates with varying CF contents and surface‐modified GFs, as well as PA6.6 sheets and GF/PA6.6 composite laminates. Solid particle erosion and scratch tests were conducted to assess the influence of scrap CF hybridization and GF surface modification on the tribological properties of the composites. The results demonstrated that neat PA6.6 sheets exhibited the lowest erosion rate, while the incorporation of CF and GF reinforcements had a detrimental effect on erosion resistance. The highest erosion rate was observed within the impact angle range of 15°–30° for pure PA6.6 sheets, whereas for composite laminates, it occurred within the range of 30°–45°. In contrast, CFs positively affected scratch hardness despite their negative impact on erosion resistance. Additionally, the silane treatment of GFs, which enhanced interfacial strength, improved the erosion resistance and scratch hardness of GF/PA6.6 composite laminates without CF. Profilometer‐based topographic analysis revealed a correlation between the average surface roughness of the eroded surfaces and the weight loss resulting from solid particle erosion.

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Section: Resultscontrasting

confidence: 99%

Section: Solid Particle Erosion Studiessupporting

confidence: 62%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Solid particle erosion and scratch behavior of novel scrap carbon fiber/glass fabric/polyamide 6.6 hybrid composites

et al. 2023

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“…15 Currently, common fiber alignment methods include dry-laid and wet-laid techniques. 16 Dry-laid alignment is typically achieved through the use of magnetic fields, acoustic waves, and spinning processes to align fibers. [17][18][19] This method has a higher efficiency in aligning fibers, but resulted in a lower quality alignment.…”

Section: Introductionmentioning

confidence: 99%

Investigation of alignment and layup optimization of recycled carbon fiber mats on mechanical and electromagnetic shielding properties of composites

Cheng,

Wang,

Guo

et al. 2024

Polymer Composites

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Excellent recycled carbon fiber (rCF) was obtained using a thermally activated oxide semiconductor process. An alignment device was manufactured based on wet‐laid technology. It was used to investigate the effect of various alignment nozzle parameters on the degree of alignment of rCF mats. The mechanical, electrical conductivity and EMI shielding properties of composites reinforced by rCF mats with different layup structures were analyzed. The results showed that the optimal alignment parameters for rCF aligned mats included a convex nozzle shape, a nozzle diameter of 3 mm, a nozzle channel length of 50 mm, a nozzle up‐and‐down diameter ratio of 7:1, a nozzle departure height of 20 mm. These settings achieved a preferential alignment degree (PAD) of 93.07%. The design of layup structures for rCF mats with optimized fiber alignment fully exploits the material's anisotropic characteristics. The rCF‐0/EP composite material exhibited the highest tensile strength (195.45 MPa), while the rCF‐04/EP composite material not only demonstrated the highest flexural strength (247.95 MPa) but also showed excellent electromagnetic interference (EMI) performance (47.97 dB). The results of the research laid a theoretical foundation and provides scientific guidance for high‐value reuse of rCF.Highlights Utilized rCF as a reinforcing material for CFRP composites. Preparation of rCF aligned mats with high PAD. Effect of different layup structures on rCF aligned mat reinforced composites. rCF aligned mats improve mechanical properties and EMI properties of composites.

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Synergistic Effects for Co-pyrolysis of Epoxy Resin and Polyurethane from Retired Wind Turbine Blades

Wu,

Li,

Shan

et al. 2023

Waste Biomass Valor

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A new approach for the reuse of scrap carbon fiber in high-added value continuous fiber reinforced composite structures

Cited by 3 publications

References 43 publications

Solid particle erosion and scratch behavior of novel scrap carbon fiber/glass fabric/polyamide 6.6 hybrid composites

Solid particle erosion and scratch behavior of novel scrap carbon fiber/glass fabric/polyamide 6.6 hybrid composites

Investigation of alignment and layup optimization of recycled carbon fiber mats on mechanical and electromagnetic shielding properties of composites

Synergistic Effects for Co-pyrolysis of Epoxy Resin and Polyurethane from Retired Wind Turbine Blades

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