Enhancing compressive strength in polymer composites utilized for application of foot prostheses

Journal of Polymer Research, Год журнала: 2024, Номер 31(2)

Опубликована: Янв. 18, 2024

Язык: Английский

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Progress in 3D printing of recycled PET

Materials Today Sustainability, Год журнала: 2024, Номер 26, С. 100757 - 100757

Опубликована: Март 24, 2024

Filaments from blends of post-industrial, low-quality recycled poly(ethylene terephthalate) (RPET) and ethylene-butyl-acrylate-glycidyl-methacrylate (EBA-GMA) were extruded with different EBA-GMA contents, then specimens 3D-printed by fused filament fabrication technology. It has been demonstrated that, when 0–90° layer order is applied, at 15 wt% content the unnotched impact strength increases two a half times notched nine compared to samples printed elastomer-free RPET. DSC DMA measurements proved that reactively bonds PET molecules, which indicated increment rigid amorphous phase glass transition temperature reduction crystallinity. The co-polymer molecules formed in-situ during compounding create Toughening Enhancer Interphase (TEI), also remains after 3D printing effectively enhances strength. strain break tensile filaments are substantially higher than due increasing shrinkage resulting increased porosity content. However, Young-modulus values quite similar. flexural reaches 40–60% injection moulded samples. proposed method enables production parts arbitrary geometry balanced mechanical properties RPET, may substitute acrylonitrile butadiene styrene.

Язык: Английский

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Mechanical Performance of Recycled 3D Printed Sustainable Polymer-Based Composites: A Literature Review

Journal of Composites Science, Год журнала: 2024, Номер 8(6), С. 215 - 215

Опубликована: Июнь 7, 2024

The development of efficient waste valorization strategies has emerged as an important field in the overall efforts for alignment with environmental goals that have been set by European Union (EU) Green Deal regarding sustainable circular economy models. Additive manufacturing a method secondary life product main advantages it being form net-zero production and having ability to successfully transport complex design actual products finding applications industry rapid prototyping or tailored products. insertion eco-friendly materials these processes can lead significant reduction material footprints lower energy demands process, helping achieve Sustainable Development Goal 12 (SDG12) EU responsible consumption. aim this comprehensive review is state existing progress incorporation polymeric composite additive (AM) identify possible gaps further research. In context, presentation reacquired coming from urban industrial are used produce composites made. Then, assessment printability mechanical response constructed made, taking into consideration some key thermal, rheological properties (e.g., viscosity, melting degradation temperature, tensile impact strength). Finally, cycle analysis results presented footprint during waste-to-feedstock processes. A lack scientific research was observed, manifestation novel evaluation techniques such dynamic testing. Assessing vital evaluating whether types adequate upscaling use real applications.

Язык: Английский

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Challenges to Improve Extrusion‐Based Additive Manufacturing Process of Thermoplastics toward Sustainable Development

Macromolecular Rapid Communications, Год журнала: 2024, Номер 45(17)

Опубликована: Май 31, 2024

Abstract This review aims to present the different approaches lessen environmental impact of extrusion‐based additive manufacturing (MEX) process thermoplastic‐based resins and protect ecosystem. The benefits drawbacks each alternative, including use biomaterials or recycled materials as feedstock, energy efficiency, polluting emissions reduction, have been examined. First, technological option using a pellet‐fed printer was compared filament‐fed printer. Then, common biopolymers utilized in MEX applications are discussed, along with methods for improving mechanical properties associated printed products. introduction natural fillers thermoplastic biocomposite filaments proposed improve specific performance items, highlighting numerous challenges related their extrusion. Various polymers derived from recycling presented feeding raw printers reduce waste accumulation, showing inferior qualities resulting goods when products made virgin materials. Finally, consumption released into atmosphere during printing potential both aspects be controlled through material selection operating conditions.

Язык: Английский

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Parametric optimisation of 3D-printed PLA/wood dust composite for load-bearing application using grey relational analysis

Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering, Год журнала: 2024, Номер unknown

Опубликована: Апрель 1, 2024

This article proposes an investigation on sustainable polylactic acid/wood dust (PLA/WD) composite material for three-dimensional (3D)-printing applications. eco-friendly aids a remarkable reduction in thermoplastic waste, while minimising resource depletion, as result it promotes circular economies, and mitigates environmental pollution. In order to extend the service life of manufactured components, becomes necessary investigate key fused filament fabrication (FFF) processing parameters that affect mechanical performance PLA/WD parts. Taguchi-based L 27 orthogonal array design was implemented experimentation, mathematical models were developed by using grey relational analysis predict responses proposed material. Moreover, FFF input with three levels values considered experimentation are nozzle temperature (190°C–200°C), layer height (0.12–0.28 mm), print speed (30–50 mm/min), infill density (80–100%) raster angle (0°–90°). The results revealed highest grade obtained 0.8333 experiment run 19 sample having ultimate tensile strength shore D hardness 20.71 ± 1.24 MPa 74 2 SHD, respectively. angle, found be influential properties sample. Furthermore, 200°C, 0.2 mm, 30 mm/min, 100% 90° optimum parameters.

Язык: Английский

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Recycling PET Waste into Functional 3D Printing Material: Effect of Printing Temperature on Physio-mechanical Properties of PET Parts

Journal of Materials Engineering and Performance, Год журнала: 2025, Номер unknown

Опубликована: Апрель 24, 2025

Язык: Английский

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Enhanced fracture toughness and tensile strength of 3D printed recycled ABS composites reinforced with continuous metallic fiber for load-bearing application

Rapid Prototyping Journal, Год журнала: 2024, Номер 30(4), С. 760 - 769

Опубликована: Март 23, 2024

Purpose This study aims to present an experimental approach develop a high-strength 3D-printed recycled polymer composite reinforced with continuous metal fiber. Design/methodology/approach The fiber was 3D printed using and virgin acrylonitrile butadiene styrene-blended filament (RABS-B) in the ratio of 60:40 postused brass wire (CBW). printing done in-nozzle impregnation technique FFF printer installed self-modified nozzle. tensile single-edge notch bend (SENB) test samples are fabricated evaluate fracture toughness properties compared VABS RABS-B samples. Findings SENB tests revealed that RABS-B/CBW 0.7 mm layer spacing exhibited notable improvement Young’s modulus, ultimate strength, elongation at maximum load by 51.47%, 18.67% 107.3% 22.75% VABS, respectively. Social implications novel integrating CBW thermoplastic represents significant leap forward material science, delivering superior strength unlocking potential for advanced, sustainable composites demanding engineering fields. Originality/value Limited research has been conducted on fiber-reinforced composites. Adopting this method holds create durable suitable applications, thereby diminishing dependence materials.

Язык: Английский

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Utilizing in-nozzle impregnation for enhancing the strength of recycled PET-derived 3D printed continuous banana fiber reinforced bio-composites

Rapid Prototyping Journal, Год журнала: 2024, Номер 30(6), С. 1137 - 1148

Опубликована: Май 20, 2024

Purpose This study aims to evaluate the potential of using in-nozzle impregnation approach reuse recycled PET (RPET) develop continuous banana fiber (CBF) reinforced bio-composites. The mechanical properties and fracture morphology behavior are evaluated establish relationships between layer spacing–microstructural characteristics–mechanical CBF/RPET composite. Design/methodology/approach uses RPET filament developed from post-consumer bottles CBF extracted agricultural waste sap. serves as matrix material, while acts reinforcement. test specimens were fabricated a customized fused deposition modeling 3D printer. In this process, printer heads used, which have unique capability extrude deposit print fibers consisting core coated with an matrix. tensile flexural samples printed at varying spacing. Findings Young’s modulus (E), yield strength (sy) ultimate sample 0.7 mm spacing 1.9 times, 1.25 times 1.8 greater than neat RPET, respectively. Similarly, results showed that 0.6 was 47.52 ± 2.00 MPa, far (25.12 1.94 MPa). Social implications holds significant social highlighting growing environmental sustainability plastic recycling concerns. use material 3D-printed sustainable structures may reduce resource consumption encourages responsible production practices. Originality/value key innovation lies in concept approach, where is composite structure. reinforcement has made superior, sustainable, environmentally friendly can reliance on virgin for printing.

Язык: Английский

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Characterization of 3D printable Polyethylene Terephthalate Glycol composite filament reinforced with agricultural waste derived from pineapple plant

Journal of Reinforced Plastics and Composites, Год журнала: 2024, Номер unknown

Опубликована: Июль 18, 2024

The aim of the current research is to develop a 3D printable PETG composite filament reinforced with pineapple fiber particulate (PALF-P). These filaments were produced using an extrusion technique, incorporating varying weight percentages (1.5%, 2.5%, 5%, and 7.5%) PALF particles treated 5% NaOH chemical solution. Analytical techniques like Fourier Transform Infrared Spectroscopy (FTIR) X-ray Diffraction (XRD) evaluated impact this treatment. A comprehensive study resulting filaments’ mechanical physical attributes revealed improved cohesion between matrix particles, enhancing overall properties. Specifically, incorporation 5 wt % showed highest ultimate tensile strength (53.54 ± 2.7 MPa), Young’s modulus (1443 72.22 load-bearing capacity (104.97 5.25 N). In contrast, 2.5% had least noticeable effect on Moreover, developed sustainable significant promise in advancing bio-composites through additive manufacturing, potentially contributing manufacturing practices.

Язык: Английский

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Advancing Sustainable Practice in Additive Manufacturing: A Comprehensive Review on Material Waste Recyclability

Опубликована: Авг. 30, 2024

This review investigates the pivotal challenge of recycling material waste in context Additive Manufacturing with an emphasis on decentralized 3D printing, shedding light its environmental and economic implications. With additive manufacturing experiencing exponential growth, impacts generation during printing processes have become increasingly significant. The paper explores various recycled materials commonly used including polymers like polylactic acid (PLA), acrylonitrile butadiene styrene (ABS), polyethylene terephthalate glycol (PETG), evaluating their characteristics usability. General methodologies, encompassing mechanical chemical processes, are examined attention to challenges such as polymer sorting, additives, coatings, contamination, thermoset reprocessing. societal impact integrating into examined. By identifying research gaps proposing future trends, this contributes a deeper understanding how can play role achieving sustainability viability within landscape.

Язык: Английский

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