Back to Search Start Over

Biocompatible Composite Filaments Printable by Fused Deposition Modelling Technique: Selection of Tuning Parameters by Influence of Biogenic Hydroxyapatite and Graphene Nanoplatelets Ratios.

Biocompatible Composite Filaments Printable by Fused Deposition Modelling Technique: Selection of Tuning Parameters by Influence of Biogenic Hydroxyapatite and Graphene Nanoplatelets Ratios.

Authors :
Mocanu, Aura-Cătălina
Constantinescu, Andreea-Elena
Pandele, Mădălina-Andreea
Voicu, Ștefan Ioan
Ciocoiu, Robert-Cătălin
Batalu, Dan
Semenescu, Augustin
Miculescu, Florin
Ciocan, Lucian-Toma
Source :
Biomimetics (2313-7673); Mar2024, Vol. 9 Issue 3, p189, 18p
Publication Year :
2024

Abstract

The proposed strategy for the extrusion of printable composite filaments follows the favourable association of biogenic hydroxyapatite (HA) and graphene nanoplatelets (GNP) as reinforcement materials for a poly(lactic acid) (PLA) matrix. HA particles were chosen in the <40 μm range, while GNP were selected in the micrometric range. During the melt–mixing incorporation into the PLA matrix, both reinforcement ratios were simultaneously modulated for the first time at different increments. Cylindrical composite pellets/test samples were obtained only for the mechanical and wettability behaviour evaluation. The Fourier-transformed infrared spectroscopy depicted two levels of overlapping structures due to the solid molecular bond between all materials. Scanning electron microscopy and surface wettability and mechanical evaluations vouched for the (1) uniform/homogenous dispersion/embedding of HA particles up to the highest HA/GNP ratio, (2) physical adhesion at the HA-PLA interface due to the HA particles' porosity, (3) HA-GNP bonding, and (4) PLA-GNP synergy based on GNP complete exfoliation and dispersion into the matrix. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
23137673
Volume :
9
Issue :
3
Database :
Complementary Index
Journal :
Biomimetics (2313-7673)
Publication Type :
Academic Journal
Accession number :
176272600
Full Text :
https://doi.org/10.3390/biomimetics9030189