Influence of the additivation of graphene-like materials on the properties of polyamide for Powder Bed Fusion
- 79 Downloads
The purpose of this work is to achieve the improvement of mechanical properties of polyamide 12 through dispersion of graphene-like nanofillers, for its use in Powder Bed Fusion. Nanocomposites have been prepared by conventional injection moulding in order to determine the mechanical and electrical behaviour of the different systems as a previous step for the design of new materials for Powder Bed Fusion. Structural characterisation and mechanical and electrical properties assessments were performed, showing the improvement of stiffness and mechanical strength for the prepared nanocomposites, compared to pristine polyamide. Electrical conductivity has been introduced as well in some of them. This enhancement of properties, together with the first tests carried out on nanocomposites prepared with Powder Bed Fusion, makes this study a starting point to obtain commercially interesting materials for this additive manufacturing technique.
KeywordsPolyamide Graphene-like materials Nanocomposites Focused ion beam microscopy Mechanical testing Conductivity measures
This work was supported by the Spanish MINECO (Projects EXPLORA MEDEA CTM2013-49796-EXP and OPTONANO TEC2014-53727-C2-R) and the Junta de Andalucía (INNANOMAT TEP-946 PAI research group). Cofinancing from UE-FEDER is also acknowledged. The corresponding author has been funded by an FPU pre-doctoral contract from the Spanish MECD.
Compliance with ethical standards
Conflict of interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.
- 1.Goodridge RD, Shofner ML, Hague RJM et al (2011) Processing of a Polyamide-12/carbon nanofibre composite by laser sintering. Polym Test 30:94–100. https://doi.org/10.1016/j.polymertesting.2010.10.011 CrossRefGoogle Scholar
- 4.Hopkinson N, Hague RJM, Dickens PM (2006) Rapid manufacturing: an industrial revolution for the digital age. Wiley, New JerseyGoogle Scholar
- 5.Bergmann C, Lindner M, Zhang W et al (2010) 3D printing of bone substitute implants using calcium phosphate and bioactive glasses. J Eur Ceram Soc 30:2563–2567. https://doi.org/10.1016/j.jeurceramsoc.2010.04.037 CrossRefGoogle Scholar
- 13.Haghi AK, Zaikov GE (2013) Update on nanofillers in nanocomposites: from introduction to application. Smithers Rapram, ShrewsburyGoogle Scholar
- 18.Sengupta R, Bhattacharya M, Bandyopadhyay S, Bhowmick AK (2011) A review on the mechanical and electrical properties of graphite and modified graphite reinforced polymer composites. Prog Polym Sci 36:638–670. https://doi.org/10.1016/j.progpolymsci.2010.11.003 CrossRefGoogle Scholar
- 25.Murariu M, Dechief AL, Bonnaud L et al (2010) The production and properties of polylactide composites filled with expanded graphite. Polym Degrad Stab 95:889–900. https://doi.org/10.1016/j.polymdegradstab.2009.12.019 CrossRefGoogle Scholar
- 28.Eyholzer C, Tingaut P, Zimmermann T, Oksman K (2012) Dispersion and reinforcing potential of carboxymethylated nanofibrillated cellulose powders modified with 1-hexanol in extruded poly(lactic acid) (PLA) composites. J Polym Environ 20:1052–1062. https://doi.org/10.1007/s10924-012-0508-4 CrossRefGoogle Scholar