Evaluation of the Viability of 3D Printing in Recycling Polymers

Polymers, Journal Year: 2024, Volume and Issue: 16(8), P. 1104 - 1104

Published: April 16, 2024

The increased use of plastics in industrial and agricultural applications has led to high levels pollution worldwide is a significant challenge. To address this plastic pollution, conventional methods such as landfills incineration are used, leading further challenges the generation greenhouse gas emissions. Therefore, increasing interest been directed identifying alternative dispose waste from agriculture. novelty current research arose lack critical reviews on how 3-Dimensional (3D) printing was adopted for recycling plastics, its application production specific benefits, disadvantages, limitations plastics. review paper offers novel insights regarding 3D including Fused Particle Fabrication (FPF), Hot Melt Extrusion (HME), Deposition Modelling (FDM) make filaments However, were local setups where only small quantities raw materials considered. Data collected using systematic involving 39 studies. Findings showed that Polylactic Acid (PLA), Acrylonitrile Butadiene Styrene (ABS), Polyethylene Terephthalate (PET), High-Density (HDPE), which found have properties comparable those virgin plastic, suggesting viability managing pollution. also associated with methods; 3D-printed deteriorated rapidly under Ultraviolet (UV) light non-biodegradable, posing risks UV stabilization helps reduce deterioration, thus longevity reducing disposal. Future directions emphasize deterioration their addition stability.

Language: Английский

---

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

Journal of Composites Science, Journal Year: 2024, Volume and Issue: 8(6), P. 215 - 215

Published: June 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.

Language: Английский

---

Recycling a carbon fiber-reinforced polyamide through 3D printing: a mechanical and physicochemical analysis

Composites Part B Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112147 - 112147

Published: Jan. 1, 2025

Language: Английский

---

Effects of Process Parameters on the Mechanical Properties and Microstructure of Additively Manufactured Carbon Black Particles-Reinforced Thermoplastic Polyurethane Composite Samples

Polymers, Journal Year: 2025, Volume and Issue: 17(3), P. 426 - 426

Published: Feb. 6, 2025

Additive manufacturing (AM) techniques make fabricating complex designs, prototypes, and end-user products possible. Conductive polymer composites find applications in flexible electronics, sensor fabrication, electrical circuits. In this study, thermoplastic polyurethane (TPU)-based conductive composite samples were fabricated via fused filament fabrication (FFF). The effects of three important process parameters, including infill density (ID), layer thickness (LT), fan speed (FS), on various mechanical properties (tensile compressive properties) investigated. It was observed that all the considered parameters affect properties, they are significant as per analysis variance (ANOVA). From scanning electron microscopy (SEM) optical microscopy, combinations such low ID, high LT, FS resulted formation defects voids, cracks, warping, which properties. Finally, parameter optimization performed, resulting a with best possible combination at medium FS.

Language: Английский

---

Insights into Flexural and Impact Properties of Polymer Based Materials Printed Through Fused Filament Fabrication: Progress in The Last Decade

International Journal of Lightweight Materials and Manufacture, Journal Year: 2024, Volume and Issue: unknown

Published: June 1, 2024

The Fused Filament Fabrication is an economic 3D printing process to produce lightweight polymers-based structures. Therefore, it drawing a consistently increasing interest from industry and researchers. Flexural impact properties are two of the critical performance measures for gauging integrity printed Since 2014, numerous studies have been carried out on this topic, however, their holistic overview with focus flexural has barely presented in literature. current article reviews relationship between parameters, both operating geometrical, these detail. cause-effect thoroughly examined considering material effect. This allows identification complex interactive effects conducive ranges important parameters effectively control achieving desired mechanical properties. review establishes that crystallinity post-printed polymers crucial factor controlling properties, filled generally offer better than unfilled ones if right filler given chosen. Topology optimization, recyclability through FFF, retention polymer after also discussed as innovative trends. Finally, limitations research gaps identified, latest ideas proposed way forward further development FFF technology.

Language: Английский

---

Biodegradable Alternatives to Plastic in Medical Equipment: Current State, Challenges, and the Future

Journal of Composites Science, Journal Year: 2024, Volume and Issue: 8(9), P. 342 - 342

Published: Sept. 1, 2024

The use of plastic products or components in medical equipment and supplies results challenges terms environmental sustainability waste management for disposable, non-recyclable, non-biodegradable materials. Medical includes items ranging from syringes, tubing, intravenous (IV) bags, packaging, more. Developing biodegradable replacements to petroleum-based plastics has not yet become an urgent priority, but it is important endeavor. Examining alternatives involves several key themes, including material selection, testing, validation, regulatory approval. To date, research studies on polymers, composite materials, surface modifications, bacterial cellulose, three-dimensional (3D) printing with clinical trials collaboration industry, considerations, sustainable packaging devices, life cycle analysis. incorporation bio-based the healthcare industry holds immense potential reducing impact waste. literature suggests that researchers professionals are actively working towards finding meet stringent requirements industry. This paper reviews efforts made so far develop using a meta-analysis resources, which include relevant papers published English until June 2024. A total 116 documents were found screened by three reviewers relevance. reviewed indicated various uses require due their unique properties, such as having strength flexibility; being lightweight; able prevent contamination. Among alternatives, polycaprolactone (PCL), polylactic-co-glycolic acid (PLGA), starch-based acid, polybutyric (PBS) have demonstrated favourable outcomes biocompatibility, safety, efficacy. Additionally, set approaches overcome these barriers strategies discussed alongside future solutions. review aims catalyze discussions actions toward more environmentally providing comprehensive analysis current state, challenges, prospects this domain.

Language: Английский

---

Synthesis, Modification, and Applications of Poly(vinyl chloride) (PVC)

Polymer-Plastics Technology and Materials, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 40

Published: Nov. 1, 2024

One of the polymers with biggest production volume is poly(vinyl chloride) (PVC) considering their versatility, durability, lightweight, as well low cost production, plastics have recently become an essential part everyone's daily life. However, increased and usage poses significant environmental problems because incomplete utilization, a lengthy biodegradation period, detrimental effects on living things. This study examines latest findings in PVC research, including its properties, polymerization, modification, recycling, diverse applications. It has been proposed that during along application both inorganic organic thermal stabilizers, can mitigate some basic limiting characteristics PVC. chemistry extended by vast continuous study, mainly chemical transformations this polymeric material. describes modification using different materials active modifying agent. The latter included substitutions, modifications, nucleophilic radicals, removal or dehydrochlorination, grafting polymerizations. PVC's consequences are examined, overview functionalization provided article, discussion main reactivity trends lens recycling.

Language: Английский

---

Characteristic study and design factor analysis of a novel non-pneumatic tyre with V-shaped spokes

Materials & Design, Journal Year: 2024, Volume and Issue: 238, P. 112681 - 112681

Published: Jan. 20, 2024

Compared with conventional pneumatic tyres, non-pneumatic tyres (NPTs) have various advantages such as zero-blowout risk, maintenance-free, and environment-friendliness. Instead of compressed air, NPTs employ elastic spokes the main load-carrying structure. Honeycomb flexible radial are commonly used types, spoke geometries also continuously emerging. In this study, an innovative NPT V-shape was developed. With specially designed spokes, can achieve better supporting performance aerodynamic characteristics. A finite element (FE) model constructed for proposed NPT, mechanical properties were studied. Prototypes fabricated, experimental test confirmed fidelity FE model. To reveal impact mechanism design parameters on we Taguchi method parametric analysis. Based verified model, orthogonal simulations conducted to study interactions among multi-axis radial, longitudinal, lateral, torsional stiffnesses. result analysis, principles extracted satisfy its property demands.

Language: Английский

---

A Review of AI for optimization of 3D Printing of Sustainable Polymers and Composites

Composites Part C Open Access, Journal Year: 2024, Volume and Issue: unknown, P. 100513 - 100513

Published: Sept. 1, 2024

Language: Английский

---

Optimizing Mechanical Properties of Recycled 3D-Printed PLA Parts for Sustainable Packaging Solutions Using Experimental Analysis and Machine Learning

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

---