Multifunctional properties of 3D printed poly(lactic acid)/graphene nanocomposites by fused deposition modeling

Prashantha, K.; Roger, F.

doi:10.1080/10601325.2017.1250311

Cited by 151 publications

(77 citation statements)

References 16 publications

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“…With the nozzle moving in the x ‐ y plane and the heated bed declining in z direction according to the instructions, parts are layer‐by‐layer fabricated. The most common FDM materials are thermoplastic materials like acrylonitrile–butadiene–styrene (ABS), poly(lactic acid), and polyamide (PA) . The limited material selection and limited properties of printed parts hindered the application of FDM.…”

Section: Introductionmentioning

confidence: 99%

“…The GNPs can also be scaled inexpensively into quantity production . Up to now, only several recently published scientific literatures have been performed to develop nanocomposites for FDM applications utilizing graphene as the nanofiller. A slightly decreased coefficient of thermal expansion was reported by incorporating 5.6 wt % of chemical reduced graphene oxide into ABS .…”

Section: Introductionmentioning

confidence: 99%

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Thermal and mechanical properties of polyamide 12/graphene nanoplatelets nanocomposites and parts fabricated by fused deposition modeling

Zhu

Ren²,

Liao

et al. 2017

J of Applied Polymer Sci

138

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The printable polyamide 12 (PA12) nanocomposite filaments with 6 wt % graphene nanoplatelets (GNPs) for fused deposition modeling (FDM) were prepared by melting compounding and smoothly printed via a commercial FDM three-dimensional (3D) printer. The thermal conductivity (k) and elastic modulus (E) of 3D printed PA12/GNPs parts along to the printing direction had an increase by 51.4% and 7% than that of compression molded parts, which is due to the GNPs preferentially aligning along to the printing direction. Along with these improved properties, ultimate tensile strength of 3D printed PA12/GNPs parts was well maintained. These results indicate that FDM is a new way to achieve PA12/GNPs parts with enhanced k over compression moulding, which could contribute to realize efficient and flexible heat management for a wide range of applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal and mechanical properties of polyamide 12/graphene nanoplatelets nanocomposites and parts fabricated by fused deposition modeling

Zhu

Ren²,

Liao

et al. 2017

J of Applied Polymer Sci

138

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“…PLA‐based nanocomposites with TA‐functionalized GNPs were first prepared (Figure ), and the uniform dispersion of GNPs in the nanocomposites and enhanced mechanical properties and thermal conductivity were observed. These nanocomposites are expected to have many potential applications in the areas of heat dissipation in LEDs and three‐dimensional printing materials for fused deposition modeling …”

Section: Introductionmentioning

confidence: 99%

Enhanced thermal conductivity of PLA‐based nanocomposites by incorporation of graphite nanoplatelets functionalized by tannic acid

Lin

Pei

Zhang

2018

J of Applied Polymer Sci

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Enhancing thermal conductivity of polymeric nanocomposites remains a great challenge because of the poor compatibility between nanofillers and the polymeric matrix and the aggregation effect of nanofillers. We report the enhanced thermal conductivity of poly(lactic acid) (PLA)-based nanocomposites by incorporation of graphite nanoplatelets functionalized by tannic acid. Graphite nanoplatelets (GNPs) were noncovalently functionalized with tannic acid (TA) by van der Waals forces and p-p interaction without perturbing the conjugated sp 2 network, thus preserving the high thermal conductivity of GNPs. PLA-based nanocomposites with different contents of TA-functionalized GNPs (TA-GNPs) were prepared and characterized, and the influences of TA-GNPs content on the morphologies, mechanical properties, and thermal properties of the composites were investigated in detail. TA-GNPs remarkably improved the thermal conductivity of PLA up to 0.77 W/(m K), showing its high potential as a thermally conductive filler for polymer-based nanocomposites.

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“…3,4 Polylactic acid (PLA), acrylonitrile butadiene styrene (ABS) and polycaprolactone (PCL) were chosen as matrix since they are one of the most versatile and used polymers in 3D printing. 5 UV-crosslinkable polydimethylsiloxane (PDMS) was chosen also as a matrix due to its elasticity after curing process, which opens new possibilities in the field of 3D printing since it has not been used for this purpose before. Graphene has been synthesized through reducing lyophilized and non lyophilized both graphene oxide (GO) with hydrazine monohydrate and ascorbic acid (L-AA).…”

Section: Extended Abstractmentioning

confidence: 99%

Graphene Reinforced Nanocomposites for 3D Printing Applications

Sánchez¹,

Rossell²

2017

World Congress on Mechanical, Chemical, and Material Engineering

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Extended Abstract3D printing, also known as Additive Manufacturing (AM) or Rapid Prototyping (RP) is a process for creating 3 dimensional physical objects from a 3D computer digital design.1 In recent years, several research groups and companies are working on finding new materials with advanced properties suitable for the development of prototypes. Layered graphene is an emerging material for 3D printing 2 due to the combination of its impressive conductivity and the 3D nature of the printed structures, enabling the generation of high surface areas with good electrical properties and hierarchical pore structures, allowing its utilization in the fabrication of electronic devices, like batteries, sensors or RF antennas. The main aim of this work is to study the impact of modified graphene nanoplatelets integrated into the structure of selected polymers matrix. The chemical modification of graphene is expected to improve its integration into commercially available polymers. An improved dispersion has a direct impact on the polymer/graphene interfacial interaction, which has shown to be a critical parameter for the stress transfer from the nanoparticles to the matrix. 3,4 Polylactic acid (PLA), acrylonitrile butadiene styrene (ABS) and polycaprolactone (PCL) were chosen as matrix since they are one of the most versatile and used polymers in 3D printing.5 UV-crosslinkable polydimethylsiloxane (PDMS) was chosen also as a matrix due to its elasticity after curing process, which opens new possibilities in the field of 3D printing since it has not been used for this purpose before. Graphene has been synthesized through reducing lyophilized and non lyophilized both graphene oxide (GO) with hydrazine monohydrate and ascorbic acid (L-AA). Integration of graphenic nanosheets has been carried out by two techniques: intercalation through solution and by melting the polymers in combination with a high shear mixer. Solution method involves evaporation of the solvent and dried, and high shear mixer condition method involves melt mixing. This system has the advantage of not using solvent, which is often considered more economical. Nanocomposites were prepared with graphene loadings of 4 wt%. TGA, Raman, XRD, STEM, SEM, XPS and electrical conductivity measurements are been used for characterizing the materials.TEM images of the samples synthesized show different size and number of wrinkles on the surface of the graphenic layers due to the chemical treatments applied. Raman and XRD spectroscopies of the graphenic structures confirmed the successfully synthesis of graphene oxide (GO) and reduced graphene oxide (rGO). Raman spectra of the nanocomposites synthesized showed that the integration of rGO into the polymers has been achieved, since the typical bands corresponding to the rGO as well as typical band for each polymer can be observed in the graphs. SEM micrographs and XPS spectroscopy also evidenced a homogeneous dispersion and integration of the graphenic structures into the polymers. Thermal characterization by TGA show an in...

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Multifunctional properties of 3D printed poly(lactic acid)/graphene nanocomposites by fused deposition modeling

Cited by 151 publications

References 16 publications

Thermal and mechanical properties of polyamide 12/graphene nanoplatelets nanocomposites and parts fabricated by fused deposition modeling

Thermal and mechanical properties of polyamide 12/graphene nanoplatelets nanocomposites and parts fabricated by fused deposition modeling

Enhanced thermal conductivity of PLA‐based nanocomposites by incorporation of graphite nanoplatelets functionalized by tannic acid

Graphene Reinforced Nanocomposites for 3D Printing Applications

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