Investigation of polylactide and carbon nanocomposite filament for 3D printing

Potnuru, Akshay; Tadesse, Yonas

doi:10.1007/s40964-018-0057-z

Cited by 14 publications

(6 citation statements)

References 40 publications

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“…Comparison of conductivity of various additives (nano¯ller) in host thermoplastic polymer. 13,[19][20][21][22]32,34,36 17,18,20,27,29,30,36 (gray) and other polymer composite consisting of¯bers [37][38][39][40] (green).…”

Section: Discussionmentioning

confidence: 99%

“…In another very recent study, Yu et al 29 showed printing CNT and graphene¯llers in the nanocomposite of PLA made by repeated melt blending. In a recent paper, our group 30 reported similar¯lament of PLA-NC fabricated by casting the solution in a rubber tube and slicing the tube after drying, which is a slightly di®erent fabrication process that is discussed in this paper. Rubber tube casting method is useful for mixing di®erent¯llers uniformly in host polymer material in liquid state; however, it has limitation such as small¯lament length and lower mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of Polylactide/Carbon Nanopowder Filament using Melt Extrusion and Filament Characterization for 3D Printing

Jain

Tadesse

2019

Int. J. Nanosci.

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In this study, less expensive mesoporous nano carbon (NC) infused in polylactide (PLA) thermoplastic filaments were fabricated to improve the electrical properties and maintaining sufficient strength for 3D printing. Solution blending was used for PLA-NC nanocomposite fabrication and melt extrusion was employed to make cylindrical filaments. Mechanical and electrical properties of 1–20[Formula: see text]wt.% of NC-filaments were investigated and significant improvement of conductivity (3.76[Formula: see text]S/m) and sufficient yield strength (35[Formula: see text]MPa) were obtained. SEM images exhibited uniform dispersion of NC in polymer matrix and DSC results showed no significant changes in the glass transition temperature ([Formula: see text]) for all the compositions. Perspective uses of this filament are for fabrication of electrical wires in 3D printed robots, drones, prosthetics, orthotics and others.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of Polylactide/Carbon Nanopowder Filament using Melt Extrusion and Filament Characterization for 3D Printing

Jain

Tadesse

2019

Int. J. Nanosci.

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“…The electrical conductivity ( σ ) is in the vicinity of 10 −16 S m −1 for PLA, making it an excellent insulator in electronic packaging applications. Nevertheless, with the incorporation of carbon nanofillers electrical conductivity increases exponentially suggesting the creation of penetrable conduction routes and charge dispersion on the composite surface 62–66,88,89 . By reinforcing graphene into PLA, improves the mechanical and thermal properties 54,61 .…”

Section: Methodsmentioning

confidence: 99%

“…As the filler percentage increases, the continuity in the extrusion process becomes challenging. Similarly, the 3D‐printed dog bone specimens from PLA infused with carbon nanoparticles have revealed an increase in stiffness compared to the extruded filaments due to layer‐by‐layer deposition 89 . PLA/CNT specimens of 15 mm × 15 mm × 2 mm were 3D printed with a nozzle diameter of 0.8 mm, liquefier temperature of 215°C, filling velocity of 50 mm/s, and with a layer thickness of 0.2 mm 64 .…”

Section: Thermomechanical Properties Of the Nanocomposite Filaments And Fdm Printed Partsmentioning

confidence: 99%

A short review on fused deposition modeling 3D printing of bio‐based polymer nanocomposites

Mandala

Bannoth

Akella³

et al. 2021

J of Applied Polymer Sci

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Fused deposition modeling (FDM), one among the most commonly used additive manufacturing (AM), techniques has been widely used in recent years to produce customized parts with intricate geometries, especially from thermoplastics. This method was limited in its ability to produce parts for industrial applications due to inferior properties and the poor quality of fabricated parts. Hence, researchers are being driven to discover novel materials that are viable for FDM in order to keep up with enormous demand for functional products. In the recent years, it is widely recognized that the emphasis was placed on the bio‐based polymer composite matrices rather than conventional thermoplastics due to its vital advantages that aid in the replacement of synthetic and perilous materials. On this context, this review focuses on the recent advancements in FDM printing with biomaterials. Specifically, attempts have been made to investigate and provide nutshell of 3D printing of current bio‐based nanocomposites which consist of either bio‐derived filler or polymer matrices in order to make 3D printing sustainable. The effect of fillers on the filaments and FDM based products, evolution of novel characteristics of bio nanocomposites, the printability of the developed composites and their development in leading applications were also investigated and summarized.

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“…[ 48 ] Several commercially available conductive filaments consist of a carbon–PLA composite. Common conductive fillers include multiwalled CNTs, [ 49 ] graphene, [ 5 ] carbon nanoparticles, [ 50 ] and/or carbon black. [ 51 ] To create a printable filament, these fillers are commonly introduced into the matrix material prior to printing by means of a twin‐screw extruder, [ 52 ] melt extrusion, [ 53 ] or a drawing process.…”

Section: Filament Deposition 4d Printing Of Conductive Materialsmentioning

confidence: 99%

4D Printing of Electroactive Materials

Chen

Pegg

Chen

et al. 2021

Advanced Intelligent Systems

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In recent years, the intersection of 3D printing and “smart” stimuli‐responsive materials has led to the development of 4D printing, an emerging field that is a subset of current additive manufacturing research. By integrating existing printing processes with novel materials, 4D printing enables the direct fabrication of sensors, controllable structures, and other functional devices. Compared to traditional manufacturing processes for smart materials, 4D printing permits a high degree of design freedom and flexibility in terms of printable geometry. An important branch of 4D printing concerns electroactive materials, which form the backbone of printable devices with practical applications throughout biology, engineering, and chemistry. Herein, the recent progress in the 4D printing of electroactive materials using several widely studied printing processes is reviewed. In particular, constituent materials and mechanisms for their preparation and printing are discussed, and functional electroactive devices fabricated using 4D printing are highlighted. Current challenges are also described and some of the many data‐driven opportunities for advancement in this promising field are presented.

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Investigation of polylactide and carbon nanocomposite filament for 3D printing

Cited by 14 publications

References 40 publications

Fabrication of Polylactide/Carbon Nanopowder Filament using Melt Extrusion and Filament Characterization for 3D Printing

Fabrication of Polylactide/Carbon Nanopowder Filament using Melt Extrusion and Filament Characterization for 3D Printing

A short review on fused deposition modeling 3D printing of bio‐based polymer nanocomposites

4D Printing of Electroactive Materials

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