We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Influence of Graphene Oxide on Printability, Rheological and Mechanical Properties of Highly Filled Alumina Filaments and Sintered Parts Produced by FFF.
- Authors
Kuznetsova, Ekaterina; Smirnov, Anton; Gusarov, Andrey V.; Solís Pinargote, Nestor Washington; Tarasova, Tatiana V.; Grigoriev, Sergey N.
- Abstract
The aim of the study was to investigate the effect of the addition of graphene oxide (GO) on the rheological and mechanical properties of extruded polyamide 12 (PA12) filaments with high aluminum oxide (Al2O3) content used for 3D printing using the fused filament fabrication (FFF) method. Firstly, Al2O3-based mixtures with 0.10, 0.25 and 0.50 vol.% GO content were prepared. These mixtures were dried and subsequently combined with paraffin wax (PW), stearic acid (SA) and polyamide 12 (PA12) in an organic solvent. After drying in a vacuum oven and sifting, powder compositions of 74 wt.% (Al2O3 + GO)/26 wt.% (PA12 + PW + SA) with different GO content were obtained. All compositions were successfully extruded into filaments for 3D printing. Rheological, microstructural and mechanical studies of the compositions and filaments were carried out. X-ray diffraction phase analysis and Raman spectroscopy were also performed. It was shown that 0.10 and 0.25% vol. GO proved to be a universal additive that resulted in an increase in the rheological and mechanical properties of the highly filled polymer and also improved its 3D printability, which ultimately helped obtain a ceramic product with complex shape using the FFF method.
- Subjects
PARAFFIN wax; GRAPHENE oxide; RHEOLOGY; ALUMINUM oxide; THREE-dimensional printing
- Publication
Applied Sciences (2076-3417), 2024, Vol 14, Issue 24, p11986
- ISSN
2076-3417
- Publication type
Academic Journal
- DOI
10.3390/app142411986