A Facile Molding Method of Continuous Fiber-Reinforced Thermoplastic Composites and Its Mechanical Property

Shi, Jian; Mizuno, Mamoru; Bao, Limin; Zhu, Chunhong

doi:10.3390/polym14050947

Cited by 7 publications

(4 citation statements)

References 41 publications

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“…For this purpose, the industrial waste was cut into 100 mm × 100 mm pieces and subjected to solvolysis. The fibre recovery process was developed at the Faculty of Textile Science and Technology at Shinshu University [ 6 , 7 ]. In the first step, the surrounding thermoset matrix is carbonised under a protective inert gas atmosphere at 400 °C.…”

Section: Methodsmentioning

confidence: 99%

Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts

2022

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Carbon fibres (CF) are used in CF reinforced plastic (CFRP) components. However, waste from CF yarn trim, CFRP and the end of life (EOL) CFRP structures will cause a recycling challenge in the next decades because of strict environmental regulations. Currently, recycling is carried out almost entirely by the use of pyrolysis to regain CF as a valuable resource. This high temperature process is energy consuming, and the resulting fibres are brittle. Hence, they are not suitable for processing of textiles into yarns or new reinforcement structures. To enable grave to cradle processing, a new approach based on a solvolysis recovery of CF and subsequent yarn spinning to obtain hybrid yarns suitable for textile processing, especially by weft knitting, was the focus of the international research project IGF/CORNET 256EBR. For the first time, it was possible to process hybrid yarns made of rCF on a weft knitting machine to produce biaxial reinforced structures to form CFRP from recycled carbon fibres. Therefore, various modifications were done on the textile machinery. In this way, it was possible to process the rCF and to get out a reproducible textile structure for the production of 3D recycled CFRP (rCFRP) parts.

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Section: Methodsmentioning

confidence: 99%

Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts

2022

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“…In 2013, Tethers Unlimited proposed the concept project "SpiderFab", which combines 3D printing technology with the aerospace industry to manufacture large space structures in space like a spider web [9]. Compared with thermosetting composites, the thermoplastic composites have shown higher strength, longer life, better corrosion resistance and green recyclability [10][11][12][13][14][15][16]. The applications of high-performance thermoplastic resins such as PEEK have been widely studied.…”

Section: Introductionmentioning

confidence: 99%

Bidirectional-Reinforced Carbon Fiber/Polyether-Ether-Ketone Composite Thin-Walled Pipes via Pultrusion-Winding for On-Orbit Additive Manufacturing

Xia,

Jiang,

Chen

et al. 2024

Materials

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Benefitting from lightweight, high strength, long life, and green recyclability, continuous fiber reinforced thermoplastic composite (CFTPC) pipes have attracted extensive interest, especially in the on-orbit additive manufacturing of structural components. However, the preparation of CFTPC pipes remains challenging due to the on-orbit limited space and high processing temperature of thermoplastic resin. Here, we report an effective approach for high performance carbon fiber/polyether-ether-ketone (CF/PEEK) thin-walled pipes via bidirectional reinforcement using the pultrusion-winding technique. The continuous fabrication of thin-walled pipes can be achieved, but the limitation by the size of core mold is also broken. The compressive and shear performance of CF/PEEK pipes with different layer designs have been studied based on experiments and simulations. With the increase in axial prepreg tape layer, the resultant CF/PEEK pipes exhibit greatly improved axial compression strength. The finite element analysis indicates that the maximum axial stress is decreased due to the axial enhancement. The flexural strength is greatly proved with pultrusion–winding cycles. The simulation confirms that the circumferential strain is effectively reduced. The high performance of bidirectional reinforced CF/PEEK pipes and the facile controllability of this approach highlight their suitability for utilization in on-orbit manufacturing of large-scale structures.

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“…Continuous fiber reinforced thermoplastic composites (CFTPCs) have received tremendous attention due to the advantages of having high strength, long life, corrosion resistance, and green recyclability [ 1 , 2 , 3 , 4 , 5 ]. CFTPCs have been widely used in aerospace, transportation, and high precision processing equipment.…”

Section: Introductionmentioning

confidence: 99%

Two-Step Preparation of CCF/PEEK Wrapped Yarn for 3D Printing Composites with Enhanced Mechanical Properties

et al. 2023

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Continuous fiber reinforced thermoplastic composites (CFTPCs) have shown advantages such as high strength, long life, corrosion resistance, and green recyclability. Three-dimensional printing of CFTPCs opened up a new strategy for the fabrication of composites with complicated structures, low cost, and short production cycles. However, a traditional 3D printing process usually causes poor impregnation of the fiber or surface damage of the fiber due to the short impregnation time or high viscosity of the thermoplastic resin. Here, continuous carbon fiber/poly(ether-ether-ketones) (CCF/PEEK) wrapped yarn was fabricated via powder impregnation and using double spinning technology for the 3D printing. The concentration of PEEK powder suspension and wire speed were optimized as 15% and 2.0 m/min. The twist of wrapped yarn was optimized as 1037 T/m. Mechanical testing showed that the 3D-printed composite wire had excellent tensile and bending strength, which was about 1.6~4.2 times larger than those without the powder pre-impregnation process. It is mainly attributed to the improved impregnation of the CF which took place during the powder pre-impregnation process. We believe that our research on wrapped yarn for 3D-printed composites provides an effective strategy for the 3D printing of composites with enhanced mechanical properties.

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A Facile Molding Method of Continuous Fiber-Reinforced Thermoplastic Composites and Its Mechanical Property

Cited by 7 publications

References 41 publications

Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts

Recycling of Carbon Fibres and Subsequent Upcycling for the Production of 3D-CFRP Parts

Bidirectional-Reinforced Carbon Fiber/Polyether-Ether-Ketone Composite Thin-Walled Pipes via Pultrusion-Winding for On-Orbit Additive Manufacturing

Two-Step Preparation of CCF/PEEK Wrapped Yarn for 3D Printing Composites with Enhanced Mechanical Properties

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