A1 Refereed original research article in a scientific journal
Novel biorenewable composite of wood polysaccharide and polylactic acid for three dimensional printing
Authors: Wenyang Xu, Andrey Pranovich, Peter Uppstu, Xiaoju Wang, Dennis Kronlund, Jarl Hemming, Heidi Öblom, Niko Moritz, Maren Preis, Niklas Sandler, Stefan Willför, Chunlin Xu
Publisher: ELSEVIER SCI LTD
Publication year: 2018
Journal: Carbohydrate Polymers
Journal name in source: CARBOHYDRATE POLYMERS
Journal acronym: CARBOHYD POLYM
Volume: 187
First page : 51
Last page: 58
Number of pages: 8
ISSN: 0144-8617
DOI: https://doi.org/10.1016/j.carbpol.2018.01.069
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/30606275
Hemicelluloses, the second most abundant polysaccharide right after cellulose, are in practice still treated as a side-stream in biomass processing industries. In the present study, we report an approach to use a wood-derived and side-stream biopolymer, spruce wood hemicellulose (galactoglucomannan, GGM) to partially replace the synthetic PLA as feedstock material in 3D printing. A solvent blending approach was developed to ensure the even distribution of the formed binary biocomposites. The blends of hemicellulose and PLA with varied ratio up to 25% of hemicellulose were extruded into filaments by hot melt extrusion. 3D scaffold prototypes were successfully printed from the composite filaments by fused deposition modeling 3D printing. Combining with 3D printing technique, the biocompatible and biodegradable feature of spruce wood hemicellulose into the composite scaffolds would potentially boost this new composite material in various biomedical applications such as tissue engineering and drug-eluting scaffolds.
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