Fused Filament Fabrication of Recycled HDPE and Cactus Composite as a Biobased Material DOI Creative Commons

Mohamed Bah,

James Wamai Mwangi,

Karanja Kabini

и другие.

Engineering Reports, Год журнала: 2025, Номер 7(4)

Опубликована: Апрель 1, 2025

ABSTRACT Plastic pollution has emerged as a significant global issue, highlighting the need for sustainable alternatives and effective recycling methods. Concurrently, cactus plant offers promising source of bio‐based materials, particularly due to its resilience in harsh environments. This study focused on performance characterization powder mixed with recycled high‐density polyethylene (rHDPE) pellets filament production suitable 3D printing using Fused Filament Fabrication method. The physical properties both rHDPE were investigated, composite filaments prepared from 5%, 10%, 15% alongside rHDPE. Performance evaluation was conducted Universal Testing Machine. Additionally, chemical composition analyzed, particle size distribution determined. combination HDPE yielded viable filament, though increasing proportions reduced extrusion properties. tensile strength pure measured at 16.27 MPa, while strengths 5% 10% composites 14.97 10.74 respectively. For printed specimens, recorded 13.04 MPa 8.28 composite. flexural results showed 21.77 15.64 These findings suggest that can serve valuable additive developing materials.

Язык: Английский

Experimental Study of the Tensile Behavior of Structures Obtained by FDM 3D Printing Process DOI Open Access

Salem Ben hadj Hassine,

S. Chatti, Borhen Louhichi

и другие.

Polymers, Год журнала: 2024, Номер 16(11), С. 1562 - 1562

Опубликована: Май 31, 2024

Fused Deposition Modelling (FDM) is one of the layer-based technologies that fall under umbrella term “Additive Manufacturing”, where desired part created through successive layer-by-layer addition process with high accuracy using computer-aided design data. Additive manufacturing technology, or as it commonly known, 3D (three-dimensional) printing, a rapidly growing sector incorporated in automotive, aerospace, biomedical, and many other fields. This work explores impact Manufacturing on mechanical proprieties fabricated part. To conduct this study, printed tensile specimens are designed according to ASTM D638 standards from digital template file FDM printer Raise3D N2. The material chosen for printing parameter optimization Polylactic acid (PLA). parameters were studied infill pattern, density, cell orientation. These factors’ effects behavior parts analyzed by experiments method, statistical software MINITAB2020.

Язык: Английский

Процитировано

7

Effects of Process Parameters on the Mechanical Properties and Microstructure of Additively Manufactured Carbon Black Particles-Reinforced Thermoplastic Polyurethane Composite Samples DOI Open Access
Hira Fatima, Muhammad Asif, Hafeez Ullah

и другие.

Polymers, Год журнала: 2025, Номер 17(3), С. 426 - 426

Опубликована: Фев. 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.

Язык: Английский

Процитировано

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

и другие.

Polymers, Год журнала: 2024, Номер 16(23), С. 3268 - 3268

Опубликована: Ноя. 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.

Язык: Английский

Процитировано

6

Environmental and economic sustainability of additive manufacturing: A systematic literature review DOI
Hamad Hussain Shah, Claudio Tregambi, Piero Bareschino

и другие.

Sustainable Production and Consumption, Год журнала: 2024, Номер unknown

Опубликована: Окт. 1, 2024

Язык: Английский

Процитировано

5

Comparing End-of-Life Vehicle (ELV) and Packaging-Based Recyclates as Components in Polypropylene-Based Compounds for Automotive Applications DOI Open Access
Markus Gall, Daniela Mileva,

Wolfgang Stockreiter

и другие.

Polymers, Год журнала: 2024, Номер 16(13), С. 1927 - 1927

Опубликована: Июль 6, 2024

Increasing recycled plastic content in cars to 25% by 2030 is one of the key measures for decarbonizing automotive industry defined European Commission. This should include recovery plastics from end-of-life vehicles (ELVs), but such materials are hardly used compounds today. To close knowledge gap, two ELV recyclate grades largely based on bumper recycling were analyzed comparison a packaging-based post-consumer (PCR). The composition data design polypropylene (PP) applications with virgin base material and mineral reinforcement, which characterized relation commercial virgin-based compound. A compound 40 wt.-% ELV-based can exceed just 25 terms stiffness/impact balance. While reference nearly be matched regarding mechanics, flowability not reached any PCR compounds, making further development work necessary.

Язык: Английский

Процитировано

3

Analysis of the Impact of Cooling Lubricants on the Tensile Properties of FDM 3D Printed PLA and PLA+CF Materials DOI Open Access
Elvis Hozdić, Redžo Hasanagić

Polymers, Год журнала: 2024, Номер 16(15), С. 2228 - 2228

Опубликована: Авг. 5, 2024

This study investigates the impact of infill density on mechanical properties fused deposition modeling (FDM) 3D-printed polylactic acid (PLA) and PLA reinforced with carbon fiber (PLA+CF) specimens, which hold industrial significance due to their applications in industries where robustness durability are critical. Exposure cooling lubricants is particularly relevant for environments these materials frequently subjected fluids, such as manufacturing plants machine shops. research aims explore insights into under realistic operating conditions, including prolonged exposure lubricants. Tensile tests were performed PLA+CF specimens printed varying densities (40%, 60%, 80%, 100%). The underwent tensile testing before after 7 30 days, respectively. Mechanical strength, maximum force, strain, Young’s modulus measured evaluate effects lubricant exposure. Higher significantly increased strength force both specimens. showed an increase from 22.49 MPa at 40% 45.00 100% density, representing a 100.09% enhancement. exhibited 23.09 42.54 MPa, marking 84.27% improvement. After days exposure, decreased by 15.56%, while experienced 18.60% reduction. Strain values minor fluctuations, indicating stable elasticity, improved higher densities, suggesting enhanced material stiffness. Increasing FDM enhance properties, even These findings have significant implications applications, that optimizing can performance components. offers robust foundation further practical highlighting critical role enhancing structural integrity load-bearing capacity.

Язык: Английский

Процитировано

3

Comprehending the effect of printing orientation on the mechanical performance of polyamide-reinforced carbon fibre composites DOI Creative Commons
Nabilah Afiqah Mohd Radzuan, Farhana Mohd Foudzi, Abu Bakar Sulong

и другие.

Composites and Advanced Materials, Год журнала: 2025, Номер 34

Опубликована: Янв. 8, 2025

Numerous studies have investigated polymeric composites fabricated using fused deposition modelling. However, the mechanical performance of these composites, which is influenced by various factors, including materials and printing parameters, remains unknown. Further understanding factors helps improve accuracy predictions. Therefore, this study fabricates in-house polyamide reinforced with carbon fibre at a composition 20 wt.% controls its layer height orientations. Results indicated that controlling orientation 0° angle are most crucial factor compared to height, leads maximum flexural strength ∼21 MPa due improvements in load-bearing capacity adhesion bonding between matrix.

Язык: Английский

Процитировано

0

Case study of potential design perceptions for 3D printed accessories made of used face masks DOI Creative Commons
Changhyun Nam

Clean Technologies and Recycling, Год журнала: 2025, Номер 5(1), С. 1 - 21

Опубликована: Янв. 1, 2025

<p>This study aimed to explore consumer perceptions and acceptance of potential 3D-printed accessories made from used face masks. Based on the principles circular economy, a proposed conceptual framework was developed determine role experiential value in relationship between product design perception perceived purchase intention. Data were collected through web-based survey questionnaire, employing nationwide convenience sample consumers via crowdsourcing marketplaces. Among 899 respondents, 470 female, 429 male, with an average age 38. A structural equation model test hypotheses framework. The findings indicated that experience plays crucial significantly enhancing intentions for Participants identified jewelry, electronic cases, home decor items (e.g., picture frames) as top three preferred categories 3D printing. Usability, social value, environmental concerns emerged most influential components driving accessories. Additionally, confirmed mediating These provide opportunities rethink, redesign, reimagine environmentally responsible, socially inclusive, economically viable practices. development new printing filaments using recycled plastic-based materials further aligned Finally, this offers critical bridge academia industry, paving way sustainable future innovation manufacturing.</p>

Язык: Английский

Процитировано

0

High-Melt-Strength Recycled High-Density Polyethylene: Evaluation of a Novel Route for Targeting the Polymer Microstructure DOI Open Access
Giulia Bernagozzi, Rossella Arrigo, Alberto Frache

и другие.

Polymers, Год журнала: 2025, Номер 17(3), С. 382 - 382

Опубликована: Янв. 30, 2025

The mechanical recycling of thermoplastics (especially polyolefins) often results in recyclates with inferior properties compared to their virgin counterparts. This phenomenon is mainly due the modification polymer microstructure induced by degradation processes undergone materials during service life and reprocessing. In this work, a promising route for obtaining high-melt-strength recycled high-density polyethylene (HDPE) proposed. particular, exploited approach involves utilization commercially available additive (i.e., Nexamite® R305, Nexam Chemical, Lomma, Sweden), which was demonstrated be capable driving thermo-mechanical reactions (experienced HDPE recycling) towards obtainment long-chain branched microstructure, thereby enabling further processing material through technologies dominated elongational flow. additive-induced alterations were formulation fibers, performed tensile characterization showed that additive-containing exhibits strikingly improved ductility (namely, elongation at break 350% fibers stretched draw ratio 60) respect pristine HDPE. Overall, obtained clearly possibility attaining an effective upcycling HDPE, could industrially relevant high-added-value applications, hence paving way achievement full plastic circularity.

Язык: Английский

Процитировано

0

Evaluation of 3D-printed model geogrids and composite geosynthetics made from recycled plastics: Bridging laboratory insights with field performance DOI
Araz Hasheminezhad, Hali̇l Ceylan, Sunghwan Kim

и другие.

Construction and Building Materials, Год журнала: 2025, Номер 465, С. 140258 - 140258

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0