Electromagnetic interference shielding effectiveness of ABS carbon-based composites manufactured via fused deposition modelling

Schmitz, Débora Pereira; Ecco, Luiz Gustavo; Dul, Sithiprumnea; Pereira, Elaine C. Lopes; Soares, Bluma G.; Barra, Guilherme Mariz de Oliveira; Pegoretti, Alessandro

doi:10.1016/j.mtcomm.2018.02.034

Cited by 100 publications

(65 citation statements)

References 31 publications

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“…ABS/GNP nanocomposite showed a viscosity smaller than that of neat ABS at high frequencies for 250 • C. This behavior could be explained by the fact that the particle-particle interaction was not pronounced, and viscosity of ABS/GNP nanocomposites was decreased by a lubricating effect played by graphene nanoplatelets [23]. Similar behavior was also observed in a prior study on ABS composites containing carbon black (1-3 wt.%) or carbon nanotubes (up to 1 wt.%) [17]. Additionally, details about the melt flow index values of ABS, ABS/GNP and ABS/CNT at the same temperature were reported in our previous paper [21].…”

Section: Rheological Behaviorsupporting

confidence: 80%

“…In In summary, MWCNT is the most efficient carbon-based filler when an electrically conductive polymer composite with enhanced EMI shielding purposes is desired. In fact, low quantities of MWCNT are required to improve the mechanical, electrical and EMI properties of ABS based composites without compromising the rheological properties [17][18][19][20]. ABS polymer composites containing carbon black or xGnP could eventually reach total EMI SE higher than -20 dB corresponding to attenuations >99.9%, by simply increasing the content of these fillers.…”

Section: Discussionmentioning

confidence: 99%

“…Recent advances in additive manufacturing (AM) technologies have opened new possibilities for rapid prototyping of electrically conductive polymer composites for EMI shielding [17]. The so-called fused deposition modeling appears as an emerging technology that is considered as one of the most common techniques for rapid prototyping of polymeric components.…”

Section: Introductionmentioning

confidence: 99%

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Rapid Prototyping of Efficient Electromagnetic Interference Shielding Polymer Composites via Fused Deposition Modeling

et al. 2018

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Acrylonitrile–butadiene–styrene (ABS) filled with 6 wt.% of multi-walled carbon nanotubes and graphene nanoplatelets was extruded in filaments and additively manufactured via fused deposition modeling (FDM). The electrical conductivity and electromagnetic interference shielding efficiency (EMI SE) in the frequency range between 8.2 and 12.4 GHz of the resulting 3D samples were assessed. For comparison purposes, compression molded samples of the same composition were investigated. Electrical conductivity of about 10−4 S·cm−1 and attenuations of the incident EM wave near 99.9% were achieved for the 3D components loaded with multi-walled carbon nanotubes, almost similar to the correspondent compression molded samples. Transmission electron microscopy (TEM) images of ABS composite filaments show that graphene nanoplatelets were oriented along the polymer flow whereas multi-walled carbon nanotubes were randomly distributed after the extrusion process. The electrical conductivity and electromagnetic interference (EMI) shielding properties of compression molded and FDM manufactured samples were compared and discussed in terms of type of fillers and processing parameters adopted in the FDM process, such as building directions and printing patterns. In view of the experimental findings, the role of the FDM processing parameters were found to play a major role in the development of components with enhanced EMI shielding efficiency.

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Section: Rheological Behaviorsupporting

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rapid Prototyping of Efficient Electromagnetic Interference Shielding Polymer Composites via Fused Deposition Modeling

et al. 2018

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“…During recent decades, polymer nanocomposites with carbon-based nanofillers have been extensively investigated for fabrication of multifunctional materials with tailored properties, including high mechanical, thermal and electrical performance. Among these nanofillers, different form of graphene and carbon nanotubes have been commonly utilized due to their extraordinary intrinsic properties [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. The nomenclature of two-dimensional carbon materials is still an object of discussion and confusion, for instance between graphene nanoplatelets or graphite nanoplates.…”

Section: Introductionmentioning

confidence: 99%

Effects of the Nanofillers on Physical Properties of Acrylonitrile-Butadiene-Styrene Nanocomposites: Comparison of Graphene Nanoplatelets and Multiwall Carbon Nanotubes

2018

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The effects of carbonaceous nanoparticles, such as graphene (GNP) and multiwall carbon nanotube (CNT) on the mechanical and electrical properties of acrylonitrile–butadiene–styrene (ABS) nanocomposites have been investigated. Samples with various filler loadings were produced by solvent free process. Composites ABS/GNP showed higher stiffness, better creep stability and processability, but slightly lower tensile strength and electrical properties (low conductivity) when compared with ABS/CNT nanocomposites. Tensile modulus, tensile strength and creep stability of the nanocomposite, with 6 wt % of GNP, were increased by 47%, 1% and 42%, respectively, while analogous ABS/CNT nanocomposite showed respective values of 23%, 12% and 20%. The electrical percolation threshold was achieved at 7.3 wt % for GNP and 0.9 wt % for CNT. The peculiar behaviour of conductive CNT nanocomposites was also evidenced by the observation of the Joule’s effect after application of voltages of 12 and 24 V. Moreover, comparative parameters encompassing stiffness, melt flow and resistivity were proposed for a comprehensive evaluation of the effects of the fillers.

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“…The elements (7) and (8) were produced by the FDM technique, which, despite its simplicity in relation to Polyjet, is characterised by its mechanical, thermal and chemical resistance (Schmitz et al, 2018). In this technique a polymer, such as acrylonitrile-butadiene-styrene (ABS), in the form of filaments, was partially melted and then extruded to perform layer-by-layer deposition (Kollamaram et al, 2018) The blades of the iris mechanism were made of AISI 304 stainless steel and manufactured using laser cutting.…”

Section: Prototype Design and Manufacturingmentioning

confidence: 99%

Development of sprinkler with adjustable orifice using iris-type mechanism for variable rate irrigation

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Electromagnetic interference shielding effectiveness of ABS carbon-based composites manufactured via fused deposition modelling

Cited by 100 publications

References 31 publications

Rapid Prototyping of Efficient Electromagnetic Interference Shielding Polymer Composites via Fused Deposition Modeling

Rapid Prototyping of Efficient Electromagnetic Interference Shielding Polymer Composites via Fused Deposition Modeling

Effects of the Nanofillers on Physical Properties of Acrylonitrile-Butadiene-Styrene Nanocomposites: Comparison of Graphene Nanoplatelets and Multiwall Carbon Nanotubes

Development of sprinkler with adjustable orifice using iris-type mechanism for variable rate irrigation

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