Morphology and mechanical properties of poly (acrylonitrile‐butadiene‐styrene)/multi‐walled carbon nanotubes nanocomposite specimens prepared by fused deposition modeling

Abstract

In this work, poly(acrylonitrile‐butadiene‐styrene) (ABS) filaments containing 0, 1, 3, and 5 wt% multi‐walled carbon nanotubes (MWCNT) were prepared by extrusion. The filaments were then used to make the required specimens with a fused deposition modeling machine. The results obtained from the tensile measurements revealed that with the increase in the layer thickness, the tensile strength of the printed specimens decreased; however, the raster angle did not have any significant effect on the properties. The transmission electron microscope images showed that for the sample containing 3 wt% MWCNT, nanoparticles were reasonably dispersed throughout the matrix. The scanning electron microscope images illustrated that the size of the voids formed within the specimens was increased with increasing of the layer thickness from 0.05 to 0.2 mm. It was also found that the maximum properties could be obtained by using the layer thickness, raster angle and MWCNT concentration of 0.05 mm, 45/−45°, and 3 wt%, respectively. The results showed that both the tensile strength and elastic modulus of the filaments progressively increased with the increase of the nanofiller content in the range studied. It was found that for the constant layer thickness of 0.05 mm, all the specimens printed with single raster angles of 0, 45, and 90° showed higher tensile strength in comparison with their counterparts printed with two raster angles of 0/90° and 45/−45°.

Sandwich structures based on fused filament fabrication 3D‐printed polylactic acid honeycomb and poly(vinylidene fluoride) nanocomposites for microwave absorbing applications

“…[34][35][36][37] Among several 3D printing technologies, FFF presents low cost, large amount of applicable materials, and straightforward operation. [38] The two most used thermoplastic polymers in FFF are acrylonitrile-butadiene-styrene (ABS) [39][40][41][42] and PLA [43][44][45] due to their rheological and thermal properties that are well suited for this process. Between them PLA is a long-lasting biodegradable, biocompatible polyester produced from renewable resources such as sugar cane, corn, and potato.…”

Influence of processing parameters tuning and rheological characterization on improvement of mechanical properties and fabrication accuracy of 3D printed models

“…The higher elastic behavior of the black PLA is the reason for the considerable printing die swell, which caused the positive dimensional deviation and its subsequent less specific surface area and osteogenesis ability. Additionally, higher black filament’s elasticity causes a more difficult flow of the deposited layer and prevents layers’ penetration through each other (Razavi-Nouri et al , 2021). On the other hand, Figure 13(b) illustrates the more viscous behavior of the black material in the low shear rate region.…”

Exploiting mono‐ and hybrid nanocomposite materials for fused filament fabrication with acrylonitrile butadiene styrene as polymer matrix

“…ABS-based nanocomposites show at first sight similar trends in the mechanical properties with changes in LT as for unmodified ABS, which is consistent with data for 3D printed ABS/CNT nanocomposites. 64 No major changes for the tensile modulus and strain at break with a change in the LT are seen in Table 7 for the ABS-based nanocomposites, whereas the tensile strengths are reduced or maintained constant with an increase in LT, depending on the composition. The flexural modulus and flexural strength always decrease with increased LT.…”