Fabrication and Characterisation of Aligned Discontinuous Carbon Fibre Reinforced Thermoplastics as Feedstock Material for Fused Filament Fabrication

In this work, aligned discontinuous fibre composite (ADFRC) tapes were developed and investigated as precursors for a novel 3D printing filament. ADFRCs have the potential to achieve mechanical performance comparable to continuous fibre reinforced composites, given sufficient fibre length and high l...

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Main Authors: Lourens Gerrit Blok, Marco Luigi Longana, Benjamin King Sutton Woods
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Materials
Subjects:
Online Access:https://www.mdpi.com/1996-1944/13/20/4671
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author Lourens Gerrit Blok
Marco Luigi Longana
Benjamin King Sutton Woods
author_facet Lourens Gerrit Blok
Marco Luigi Longana
Benjamin King Sutton Woods
author_sort Lourens Gerrit Blok
collection DOAJ
description In this work, aligned discontinuous fibre composite (ADFRC) tapes were developed and investigated as precursors for a novel 3D printing filament. ADFRCs have the potential to achieve mechanical performance comparable to continuous fibre reinforced composites, given sufficient fibre length and high level of alignment, and avoid many of the manufacturing difficulties associated with continuous fibres, e.g., wrinkling, bridging and corner radii constraints. Their potential use for fused filament fabrication (FFF) techniques was investigated here. An extensive down-selection process of thermoplastic matrices was performed, as matrix properties significantly impact both the processing and performance of the filament. This resulted in four candidate polymers (ABS, PLA, Nylon, PETG) which were used to manufacture ADFRC tapes with a <i>V</i><sub>f</sub> of 12.5% using the high performance discontinuous fibre (HiPerDiF) technology and an in-house developed continuous consolidation module. Tensile stiffness and strength up to 30 GPa and 400 MPa respectively were recorded, showing that a discontinuous fibre filament has the potential to compete with continuous fibre filaments.
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spelling doaj.art-e4eac57d7f9e480cbcb5555f5009c1a52023-11-20T17:52:15ZengMDPI AGMaterials1996-19442020-10-011320467110.3390/ma13204671Fabrication and Characterisation of Aligned Discontinuous Carbon Fibre Reinforced Thermoplastics as Feedstock Material for Fused Filament FabricationLourens Gerrit Blok0Marco Luigi Longana1Benjamin King Sutton Woods2Bristol Composites Institute (ACCIS), University of Bristol, Bristol BS8 1TR, UKBristol Composites Institute (ACCIS), University of Bristol, Bristol BS8 1TR, UKBristol Composites Institute (ACCIS), University of Bristol, Bristol BS8 1TR, UKIn this work, aligned discontinuous fibre composite (ADFRC) tapes were developed and investigated as precursors for a novel 3D printing filament. ADFRCs have the potential to achieve mechanical performance comparable to continuous fibre reinforced composites, given sufficient fibre length and high level of alignment, and avoid many of the manufacturing difficulties associated with continuous fibres, e.g., wrinkling, bridging and corner radii constraints. Their potential use for fused filament fabrication (FFF) techniques was investigated here. An extensive down-selection process of thermoplastic matrices was performed, as matrix properties significantly impact both the processing and performance of the filament. This resulted in four candidate polymers (ABS, PLA, Nylon, PETG) which were used to manufacture ADFRC tapes with a <i>V</i><sub>f</sub> of 12.5% using the high performance discontinuous fibre (HiPerDiF) technology and an in-house developed continuous consolidation module. Tensile stiffness and strength up to 30 GPa and 400 MPa respectively were recorded, showing that a discontinuous fibre filament has the potential to compete with continuous fibre filaments.https://www.mdpi.com/1996-1944/13/20/4671short fibrethermoplasticcompositeconsolidation
spellingShingle Lourens Gerrit Blok
Marco Luigi Longana
Benjamin King Sutton Woods
Fabrication and Characterisation of Aligned Discontinuous Carbon Fibre Reinforced Thermoplastics as Feedstock Material for Fused Filament Fabrication
Materials
short fibre
thermoplastic
composite
consolidation
title Fabrication and Characterisation of Aligned Discontinuous Carbon Fibre Reinforced Thermoplastics as Feedstock Material for Fused Filament Fabrication
title_full Fabrication and Characterisation of Aligned Discontinuous Carbon Fibre Reinforced Thermoplastics as Feedstock Material for Fused Filament Fabrication
title_fullStr Fabrication and Characterisation of Aligned Discontinuous Carbon Fibre Reinforced Thermoplastics as Feedstock Material for Fused Filament Fabrication
title_full_unstemmed Fabrication and Characterisation of Aligned Discontinuous Carbon Fibre Reinforced Thermoplastics as Feedstock Material for Fused Filament Fabrication
title_short Fabrication and Characterisation of Aligned Discontinuous Carbon Fibre Reinforced Thermoplastics as Feedstock Material for Fused Filament Fabrication
title_sort fabrication and characterisation of aligned discontinuous carbon fibre reinforced thermoplastics as feedstock material for fused filament fabrication
topic short fibre
thermoplastic
composite
consolidation
url https://www.mdpi.com/1996-1944/13/20/4671
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AT benjaminkingsuttonwoods fabricationandcharacterisationofaligneddiscontinuouscarbonfibrereinforcedthermoplasticsasfeedstockmaterialforfusedfilamentfabrication