Polymer Recycling: A Comprehensive Overview and Future Outlook DOI Creative Commons
Paul van den Tempel, Francesco Picchioni

Recycling, Journal Year: 2024, Volume and Issue: 10(1), P. 1 - 1

Published: Dec. 26, 2024

Polymer recycling is an essential and crucial topic in our sustainability-driven society. The depletion of oil the increasing interest biomass conversion clearly stimulate search for alternative carbon sources. On other hand, polymeric products (plastic, rubber etc.) are ubiquitous integral part life. Recycling these thus paramount importance, perhaps crucially, from environmental point view. In this work, we will focus on most common commodities, with important being (in terms production volume) thermoplastics, rubbers thermosets. A consequence choice that materials as well chemical biochemical methods be discussed. New advances corresponding technologies presented critically evaluated. Finally, basis literature review, identify current trends possible future developments.

Language: Английский

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

Macromolecular Rapid Communications, Journal Year: 2024, Volume and Issue: 45(17)

Published: May 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.

Language: Английский

Citations

10
A Study on the Optimization of FDM Parameters for the Manufacturing of Compression Specimens from recycled ASA in the Context of the Transition to the Circular Economy DOI Open Access
Dragoș Gabriel Zisopol,

Mihail Minescu,

Dragos Valentin Iacob

et al.

Engineering Technology & Applied Science Research, Journal Year: 2025, Volume and Issue: 15(1), P. 19898 - 19902

Published: Feb. 2, 2025

The present study investigates the optimization of FDM parameters, that is, height deposited layer in one pass (Lh) and filling percentage (Id), for manufacture compression specimens from recycled ASA (rASA) context transitioning to circular economy. Anycubic 4Max Pro 2.0 3D printer was utilized, where were additively manufactured rASA 45 using following variable parameters: Lh = 0.10 mm, 0.15 0.20 Id 50%, 75%, 100%. All tested on Barrus White 20 kN universal testing machine. It found Compressive strength (Cs) is influenced by two considered parameters Fused Deposition Modeling (FDM), Id, but overwhelmingly influencing parameter Id. According results rASA, mm

Language: Английский

Citations

1
Optimizing Mechanical Properties of Recycled 3D-Printed PLA Parts for Sustainable Packaging Solutions Using Experimental Analysis and Machine Learning DOI Open Access
Maria Tănase, Alexandra Ileana Portoacă, Alin Diniță

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(23), P. 3268 - 3268

Published: Nov. 24, 2024

Increasing environmental concerns and the need for sustainable materials have driven a focus towards utilization of recycled polylactic acid (PLA) in additive manufacturing as PLA offers advantages over other thermoplastics, including biodegradability, ease processing, lower impact during production. This study explores optimization mechanical properties parts through combination experimental machine learning approaches. A series experiments were conducted to investigate various processing parameters, such layer thickness infill density, well annealing conditions, on parts. Machine algorithms proven possibility predict tensile behavior with an average error 6.059%. The results demonstrate that specific combinations parameters post-treatment differently improve (with 7.31% ultimate strength (UTS), 0.28% Young's modulus, 3.68% elongation) crystallinity 22.33%) according XRD analysis, making it viable alternative virgin applications packaging solutions, biodegradable containers, clamshell packaging, protective inserts. optimized exhibited levels comparable those their counterparts, highlighting potential reducing saving costs. For both as-built annealed samples, optimal settings achieving high composite desirability involved 0.2 mm thickness, 75% samples 100% samples. provides comprehensive framework optimizing manufacturing, contributing advancement material engineering circular economy.

Language: Английский

Citations

5
Recycling Post-Consumed Polylactic Acid Waste Through Three-Dimensional Printing: Technical vs. Resource Efficiency Benefits DOI Open Access
Md. Raquibul Hasan, Ian J. Davies, Alokesh Pramanik

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(6), P. 2484 - 2484

Published: March 12, 2025

The linear “take–make–dispose” model of plastic consumption has led to significant environmental challenges and unplanned waste legacies, emphasising the need for more sustainable recycling practices. This study explored integration post-consumer recycled polylactic acid (rPLA) into 3D printing filaments as a step towards manufacturing. Using 100% virgin PLA (vPLA) baseline, were produced with rPLA-to-vPLA ratios 0%, 25%, 50%, 75%, evaluated surface roughness, tensile strength, flexural properties, hardness. results revealed that increasing rPLA content negatively affects mechanical properties quality. Surface roughness increased from 7.06 µm pure vPLA 10.50 rPLA, whilst strengths decreased by 48.4% 49%, respectively, compared vPLA. Hardness also declined, showing 7.5% reduction relative Despite these reductions, blends up 50% retained over 90% performance vPLA, demonstrating viable compromise between sustainability. Morphological analysis highlighted poor interlayer adhesion void formation primary causes degradation in higher blends. challenges, this demonstrated rPLA-vPLA can extend life cycle promote manufacturing By addressing polymer research supports materials printing, contributing circular economy goals recycling, resource efficiency, production outcomes.

Language: Английский

Citations

0
A decision-making strategy for selection of FDM-based additively manufactured thermoplastics for industrial applications based on material attributes DOI Creative Commons

Sotiria Dimitrellou,

Eleni Strantzali,

Isidoros Iakovidis

et al.

Sustainable Futures, Journal Year: 2025, Volume and Issue: unknown, P. 100640 - 100640

Published: April 1, 2025

Language: Английский

Citations

0
Challenges and Innovations in Sustainable 3D Printing DOI Creative Commons
Aphiwat Pongwisuthiruchte, Pranut Potiyaraj

Materials Today Sustainability, Journal Year: 2025, Volume and Issue: unknown, P. 101134 - 101134

Published: May 1, 2025

Language: Английский

Citations

0
Fatigue Behaviour and Damage Mechanisms of Short Glass Fibre-Reinforced Recycled Polypropylene Produced by Pellet-based Polymer Material Extrusion Under Different Load Ratios DOI Creative Commons
Daniele Rigon, Mauro Ricotta,

Giovanni Ardengo

et al.

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112283 - 112283

Published: Feb. 1, 2025

Language: Английский

Citations

0
Smart Infrastructure and Additive Manufacturing: Synergies, Advantages, and Limitations DOI Creative Commons
Antreas Kantaros, Paraskevi Zacharia, Christos Drosos

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(7), P. 3719 - 3719

Published: March 28, 2025

The integration of 3D printing with smart infrastructure presents a transformative opportunity in urban planning, construction, and engineering, enhancing efficiency, flexibility, sustainability. By leveraging additive manufacturing alongside digitalization, artificial intelligence (AI), the Internet Things (IoT), this technology enables creation customized, lightweight, sensor-embedded structures. This work analyzes both advantages challenges applying infrastructure, focusing on material optimization, rapid prototyping, automated fabrication, which significantly reduce construction time, labor costs, waste. Applications such as 3D-printed bridges, modular housing, IoT-integrated furniture exhibit its potential contributing towards resilient resource-efficient cities. However, despite these benefits, significant hinder large-scale adoption. Issues scalability, particularly fabrication large load-bearing structures, remain unresolved, requiring advancements high-speed techniques, reinforcement strategies, hybrid methods. Furthermore, regulatory uncertainties absence standardized guidelines create barriers to implementation. lack comprehensive building codes, certification protocols, quality assurance measures for structures limits their widespread acceptance mainstream construction. Overcoming limitations necessitates research into AI-driven process multi-material printing, international standardization efforts. assisting overcoming challenges, has redefine development, making more adaptive, cost-effective, environmentally sustainable. provides critical evaluation current capabilities achieving full-scale implementation compliance.

Language: Английский

Citations

0
3D printed polymeric membranes for oil/water separation: a comprehensive review DOI
Rund Abu‐Zurayk, Rashmi Walvekar, Hui Leng Choo

et al.

Progress in Additive Manufacturing, Journal Year: 2025, Volume and Issue: unknown

Published: May 11, 2025

Language: Английский

Citations

0
A Study of the Optimization of FDM Parameters for the Manufacture of Compression Specimens from Recycled PETG in the Context of the Transition to the Circular Economy DOI Open Access
Dragoș Gabriel Zisopol,

Mihail Minescu,

Dragos Valentin Iacob

et al.

Engineering Technology & Applied Science Research, Journal Year: 2024, Volume and Issue: 14(6), P. 18774 - 18779

Published: Dec. 2, 2024

The current paper presents the results of a research on optimization Fused Deposition Modeling (FDM) parameters, namely height deposited layer in one pass, Lh, and filling percentage, Id, with purpose manufacturing compression specimens from recycled Polyethylene Terephthalate Glycol (rPETG), thus, aiming transition to circular economy. A total 45 were manufactured rPETG Anycubic 4Max Pro 3D printer variable parameters Lh = 0.10 mm, 0.15 0.20 Id 50%, 75%, 100%. All tested Barrus White 20 kN universal testing machine. considered influence Compressive Strength (CS) specimens, being parameter overwhelming influence.

Language: Английский

Citations

2