A critical review on 3D printed continuous fiber-reinforced composites: History, mechanism, materials and properties

Composite Structures, Journal Year: 2019, Volume and Issue: 232, P. 111476 - 111476

Published: Sept. 19, 2019

Language: Английский

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Additive Manufacturing of Polymer Materials: Progress, Promise and Challenges

Polymers, Journal Year: 2021, Volume and Issue: 13(5), P. 753 - 753

Published: Feb. 28, 2021

The use of additive manufacturing (AM) has moved well beyond prototyping and been established as a highly versatile method with demonstrated potential to completely transform traditional in the future. In this paper, comprehensive review critical analyses recent advances achievements field different AM processes for polymers, their composites nanocomposites, elastomers multi materials, shape memory polymers thermo-responsive materials are presented. Moreover, applications fields such bio-medical, electronics, textiles, aerospace industries also discussed. We conclude article an account further research needs future perspectives process polymeric materials.

Language: Английский

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3D and 4D printing in dentistry and maxillofacial surgery: Printing techniques, materials, and applications

Acta Biomaterialia, Journal Year: 2020, Volume and Issue: 122, P. 26 - 49

Published: Dec. 26, 2020

Language: Английский

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Highly Thermally Conductive 3D Printed Graphene Filled Polymer Composites for Scalable Thermal Management Applications

ACS Nano, Journal Year: 2021, Volume and Issue: 15(4), P. 6917 - 6928

Published: April 15, 2021

Efficient thermal transportation in a preferred direction is highly favorable for management issues. The combination of 3D printing and two-dimensional (2D) materials such as graphene, BN, so on enables infinite possibilities hierarchically aligned structure programming. In this work, we report the formation asymmetrically graphene filled thermoplastic polyurethane (TPU) composites during process. as-printed vertically demonstrates through-plane conductivity (TC) up to 12 W m–1 K–1 at 45 wt % content, which ∼8 times that horizontally printed surpasses many traditional particle reinforced polymer composites. superior TC mainly attributed anisotropic design benefited from preferable degree orientation multiscale dense realized by finely controlling parameters. Finite element method (FEM) confirms essential impact conductive This study provides an effective way develop graphene-based scalable thermal-related applications battery management, electric packaging, on.

Language: Английский

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Evolution of 3D Printing Methods and Materials for Electrochemical Energy Storage

Advanced Materials, Journal Year: 2020, Volume and Issue: 32(29)

Published: June 8, 2020

Additive manufacturing has revolutionized the building of materials direct from design, allowing high resolution rapid prototyping in complex 3D designs with many materials. printing hasenabled strength damage-tolerant structures, bioprinted artificial organs and tissues, ultralight metals, medicine, education, prosthetics, architecture, consumer electronics,and as a tool for engineers hobbyists alike. emerged useful electrode material assembly method batteries supercapacitors recent years. The field initially grew extrusion-based methods such fused deposition modelling, evolved to photopolymerization intricate composites, while supercapacitor technologies less sensitive solvents more often involved jetting processes. Underpinning every part printable battery other devices is nature feed material. Material purity, fidelity, accuracy, complexity, ability form conductive, ceramic, glassy, or solvent-stable plastics relies on composite an extent, that future electrochemical energy storage will depend are co-operatively informed by requirements device how it fabricated. In this Perspective, we address outline linking existing performance limitations materials, casing electrodes electrolytes. We also look taking inspiration additive manufacturing, posit links between allow new factor cells.

Language: Английский

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Semi-crystalline feedstock for filament-based 3D printing of polymers

Progress in Polymer Science, Journal Year: 2021, Volume and Issue: 118, P. 101411 - 101411

Published: May 2, 2021

Additive Manufacturing (AM), and more specifically Fused Filament Fabrication (FFF), allow the production of highly customized parts, provide enormous freedom-of-design can lead to material savings due layer-by-layer deposition that is inherent this family processes. FFF utilizes both amorphous semi-crystalline thermoplastic filaments as feedstock materials, offering a wider range materials compared some other polymer-based additive manufacturing techniques. However, current trend where FFF, AM in general, are changing from technique for rapid prototyping fully functional parts designed high-end applications creates inevitable need incorporate engineering high-performance thermoplastics, which most often polymers, into palette. Crystallization provides polymers with distinct features set them apart their counterparts, yet it also present difficulties regarding processing. Understanding behavior semicrystalline during processing thus prerequisite exploit full potential. This review broad overview polymers. Particular focus lies on impact conditions modifications, such incorporation fillers or formation blends, crystallinity well microstructure printed mechanical performance, general part quality. Furthermore, attention given specific phenomena occur printing have shown strongly process. Examples self-nucleation case insufficient heat transfer melting, flow-induced crystallization high shear deformations upon extrusion, negative chain mobility relevant development interlayer strength dimensional accuracy excessive shrinkage. Finally, concluded critical outlook perspectives future research address challenges still faced when employing feedstock.

Language: Английский

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Gaining a better understanding of the extrusion process in fused filament fabrication 3D printing: a review

The International Journal of Advanced Manufacturing Technology, Journal Year: 2021, Volume and Issue: 114(5-6), P. 1279 - 1291

Published: April 2, 2021

Abstract Additive manufacturing is a promising tool that has proved its value in various applications. Among technologies, the fused filament fabrication 3D printing technique stands out with potential to serve wide variety of applications, ranging from simple educational purposes industrial and medical However, as many materials composites can be utilized for this technique, processability these limiting factor producing products required quality properties. Over past few years, researchers have attempted better understand melt extrusion process during printing. Moreover, other research groups focused on optimizing by adjusting parameters. These attempts were conducted using different methods, including proposing analytical models, establishing numerical or experimental techniques. This review highlights most relevant work recent years discusses future perspectives technology.

Language: Английский

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Sustainable Additive Manufacturing: Mechanical Response of Polyamide 12 over Multiple Recycling Processes

Materials, Journal Year: 2021, Volume and Issue: 14(2), P. 466 - 466

Published: Jan. 19, 2021

Plastic waste reduction and recycling through circular use has been critical nowadays, since there is an increasing demand for the production of plastic components based on different polymeric matrices in various applications. The most commonly used procedure, especially thermoplastic materials, thermomechanical process protocols that could significantly alter polymers' macromolecular structure physicochemical properties. study at hand focuses polyamide 12 (PA12) filament, extrusion melting over multiple courses, giving insight its effect mechanical thermal properties Fused Filament Fabrication (FFF) manufactured specimens throughout courses. Three-dimensional (3D) FFF printed were produced from virgin as well recycled PA12 while they have experimentally tested further their tensile, flexural, impact micro-hardness A thorough morphological analysis was also performed all 3D samples. results this demonstrate can be successfully a certain number courses utilized printing, exhibiting improved when compared to material repetitions. From work, it deduced viable option offering overall positive recycling, realizing using filaments with enhanced stability.

Language: Английский

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The Influence of the Process Parameters on the Mechanical Properties of PLA Specimens Produced by Fused Filament Fabrication—A Review

Polymers, Journal Year: 2022, Volume and Issue: 14(5), P. 886 - 886

Published: Feb. 23, 2022

Polylactic acid (PLA) is produced from renewable materials, has a low melting temperature and carbon footprint. These advantages have led to the extensive use of polylactic in additive manufacturing, particularly by fused filament fabrication (FFF). PLA parts that are 3D printed for industrial applications require stable mechanical properties predictability regarding their dependence on process parameters. Therefore, development FFF been continuously accompanied software packages generate CNC codes printers. A large number user-controllable parameters introduced these packages. In this respect, lot articles specialized literature address issue influence 3D-printed specimens. systematic review research targeting specimens additively manufactured was carried out authors paper. Six (layer thickness, printing speed, temperature, build plate orientation raster angle) were followed. The behavior evaluated tensile, compressive bending properties.

Language: Английский

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Foam 3D Printing of Thermoplastics: A Symbiosis of Additive Manufacturing and Foaming Technology

Advanced Science, Journal Year: 2022, Volume and Issue: 9(11)

Published: Feb. 20, 2022

Due to their light-weight and cost-effectiveness, cellular thermoplastic foams are considered as important engineering materials. On the other hand, additive manufacturing or 3D printing is one of emerging fastest growing technologies due its advantages such design freedom tool-less production. Nowadays, polymer compounds mostly limited solid parts. In this context, a merged foaming technology can introduce great alternative for currently used foam injection molding. This perspective review article tackles attempts taken toward initiating novel simultaneously print thermoplastics. After explaining basics manufacturing, classifies different that have been made generating foamed printed structures while highlighting challenges. These clustered into 1) architected porous structures, 2) syntactic foaming, 3) post-foaming parts, eventually 4) blowing agents saturated filaments. Among these, latest approach most practical route although it has not thoroughly studied yet. A filament free be introduced potential strategy unlock difficulties produce also proposed.

Language: Английский

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