Carbon Nanotubes and Graphene as Additives in 3D Printing

Acquah, Steve F. A.; Leonhardt, Branden E.; S.Nowotarski, Mesopotamia; Magi, James M.; Chambliss, Kaelynn A.; S.Venzel, Thaís E.; Delekar, Sagar D.; Al-Hariri, Lara A.

doi:10.5772/63419

Cited by 38 publications

(36 citation statements)

References 51 publications

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“…There are numerous compatible materials available for 3DP, for example, metals, polymers, and ceramics [14][15][16]. Among these materials, polymers are in demand because of their diversified types, availability, processability, unique properties and price.…”

Section: Introductionmentioning

confidence: 99%

Polymer/Carbon Nanotubes (CNT) Nanocomposites Processing Using Additive Manufacturing (Three-Dimensional Printing) Technique: An Overview

Ghoshal

2017

Fibers

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Additive manufacturing (AM)/3D printing (3DP) is a revolutionary technology which has been around for more than two decades, although the potential of this technique was not fully explored until recently. Because of the expansion of this technology in recent years, new materials and additives are being searched for to meet the growing demand. 3DP allows accurate fabrication of complicated models, however, structural anisotropy caused by the 3DP approaches could limit robust application. A possible solution to the inferior properties of the 3DP based materials compared to that of conventionally manufactured counterparts could be the incorporation of nanoparticles, such as carbon nanotubes (CNT) which have demonstrated remarkable mechanical, electrical, and thermal properties. In this article we review some of the research, products, and challenges involved in 3DP technology. The importance of CNT dispersion in the matrix polymer is highlighted and the future outlook for the 3D printed polymer/CNT nanocomposites is presented.

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Section: Introductionmentioning

confidence: 99%

Polymer/Carbon Nanotubes (CNT) Nanocomposites Processing Using Additive Manufacturing (Three-Dimensional Printing) Technique: An Overview

Ghoshal

2017

Fibers

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“…Thus, PANI is also considered to be among the promising candidates for conductive fillers in 3D printing [25]. The graphene sheet (GS), a two-dimensional (2D) carbon nanomaterial, can provide fascinating properties, such as a high theoretical surface area (2630 m 2 /g), good electrical conductivity due to the high mobility of charge carriers, and high flexibility [16][17][18]24,25,28,29]. These merits of the GS make it a reliable candidate as a filler in PU composites to replace expensive CNTs [16][17][18]28,29].…”

mentioning

confidence: 99%

Comparative Studies on Polyurethane Composites Filled with Polyaniline and Graphene for DLP-Type 3D Printing

Joo

Cho

2020

Polymers

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Digital light processing (DLP)-type 3D printing ensures several advantages, such as an easy solution process, a short printing time, high-quality printing, and selective light curing. Furthermore, polyurethane (PU) is among the promising candidates for 3D printing because of its wide range of applications. This work reports comparative studies on the fabrication and optimization of PU composites using a polyaniline (PANI) nanomaterial and a graphene sheet (GS) for DLP-type 3D printing. The morphologies and dispersion of the printed PU composites were studied by field emission scanning electron microscope (FE-SEM) images. Bonding structures in the PU composites were investigated by Fourier-transform infrared (FT-IR) spectroscopy. As-prepared PU/PANI and PU/GS composites with different filler contents were successfully printed into sculptures with different sizes and shapes. The PU/PANI and PU/GS composites exhibit the improved sheet resistance, which is up to 8.57 × 104 times (1.19 × 106 ohm/sq) lower and 1.27 × 105 times (8.05 × 105 ohm/sq) lower, respectively, than the pristine PU (1.02 × 1011 ohm/sq). Moreover, the PU/PANI and PU/GS composites demonstrate 1.41 times (44.5 MPa) higher and 2.19 times (69.3 MPa) higher tensile strengths compared with the pristine PU (31.6 MPa). This work suggests the potential uses of highly conductive PU composites for DLP-type 3D printing.

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“…In Figure 4, micro-computed tomography images of polymer (left) and polymer-CNT 10% w/w (right) samples are presented (agglomeration is evidenced for the case of nanocomposite). Fabrication of highly conductive CNTs/PLA nanocomposites used as 3D printable conductive inks for fabrication of conductive scaffold structures is reported as applicable in liquid sensors [28]. The structural parameters of liquid sensors are controlled through AM, while their influence on the sensitivity of the obtained sensor can be useful for structures made from repeated patterns of filaments, such as for sensors in form of textiles [29].…”

Section: Carbonaceous Nanomaterials In Am Processesmentioning

confidence: 99%

“…This is confronted by tailoring the concentration of CNTs which should preferably not surpass the percolation threshold, while maintaining key properties for AM process (mechanical integrity, flux, rheology, etc.) [28]. In Figure 4, micro-computed tomography images of polymer (left) and polymer-CNT 10% w/w (right) samples are presented (agglomeration is evidenced for the case of nanocomposite).…”

Section: Carbonaceous Nanomaterials In Am Processesmentioning

confidence: 99%

Additive (nano)manufacturing perspectives: the use of nanofillers and tailored materials

2017

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Abstract. Additive manufacturing (AM) is identified to cost-effectively lower manufacturing inputs and outputs in small batch production, widely employed in customized and high-value manufacturing chains, such as aerospace and medical component manufacturing. Additive manufacturing has the potential to significantly lower life cycle energy demands of products and their CO 2 emissions. Moreover, AM holds promise of overturning many aspects of the economics of manufacturing, as it pays no heed to unit labour costs or traditional economies of scale. Advances in AM technology are yielding faster production times and enabling objects to be printed in multiple combinations of materials, colours and surface finishes. A significant portion of these advances lie on the development of advanced materials for AM processes, which is undeniably one of the main driving forces of the transition from Rapid Prototyping to the Direct Digital Manufacturing era. Industries are nowadays at the inflection point for AM technologies, which have moved from a much-hyped but largely unproven manufacturing processes, to a mature technological solution, with numerous competitive advantages and the ability to produce real, innovative, complex and robust products.

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Carbon Nanotubes and Graphene as Additives in 3D Printing

Cited by 38 publications

References 51 publications

Polymer/Carbon Nanotubes (CNT) Nanocomposites Processing Using Additive Manufacturing (Three-Dimensional Printing) Technique: An Overview

Polymer/Carbon Nanotubes (CNT) Nanocomposites Processing Using Additive Manufacturing (Three-Dimensional Printing) Technique: An Overview

Comparative Studies on Polyurethane Composites Filled with Polyaniline and Graphene for DLP-Type 3D Printing

Additive (nano)manufacturing perspectives: the use of nanofillers and tailored materials

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