Mechanical and Geometric Performance of PLA-Based Polymer Composites Processed by the Fused Filament Fabrication Additive Manufacturing Technique

In this work, the effect of short carbon fibre (CF) on the mechanical and geometric properties of 3D printed polylactic acid (PLA) composite parts processed using the Fused Filament Fabrication (FFF) technique have been analysed. Tensile, flexural and interlaminar shear strength (ILSS) tests were pe...

Full description

Saved in:
Bibliographic Details
Published in:Materials 2020-04, Vol.13 (8), p.1924
Main Authors: Reverte, José María, Caminero, Miguel Ángel, Chacón, Jesús Miguel, García-Plaza, Eustaquio, Núñez, Pedro José, Becar, Jean Paul
Format: Article
Language:English
Subjects:
3-D printers
Accuracy
Additive manufacturing
Carbon fiber reinforcement
Carbon fibers
Composite materials
Flexural strength
Fused deposition modeling
Geometric accuracy
Interfacial shear strength
Mechanical properties
Polylactic acid
Polymer matrix composites
Polymers
Quality
Software
Stiffness
Studies
Surface properties
Surface roughness
Tensile strength
Three dimensional printing
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, the effect of short carbon fibre (CF) on the mechanical and geometric properties of 3D printed polylactic acid (PLA) composite parts processed using the Fused Filament Fabrication (FFF) technique have been analysed. Tensile, flexural and interlaminar shear strength (ILSS) tests were performed to obtain the mechanical performance of the different samples. The surface quality and geometric accuracy of the printed specimens were also evaluated. Finally, Scanning Electron Microscope (SEM) images of the printed samples are analysed. The results revealed that the addition of carbon fibres effectively improved all assessed mechanical properties of PLA-CF composites as compared to the neat PLA. In particular, Flat PLA-CF samples showed an average increase in tensile performance of 47.1% for the tensile strength and 179.9% for the tensile stiffness in comparison to the neat PLA. From the flexural behaviour point of view, Flat PLA-CF samples revealed an increase in average flexural strength and stiffness of 89.75% and 230.95%, respectively in comparison to the neat PLA. Furthermore, PLA-CF samples depicted the best ILSS performance. In general, the use of short carbon fibre as reinforcement did not affect the dimensional accuracy of the PLA-CF samples, and even improved the surface roughness in certain cases, particularly in Flat and On-edge orientations.
ISSN:1996-1944
1996-1944
DOI:10.3390/MA13081924