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3D Printing Filaments from Kenaf, Poplar and Agricultural Residues


Biocomposite materials manufacturing from vegetal raw substances or vegetal waste is an increasingly fact. Biocomposite materials were made from a mixture of polylactic acid (PLA) and vegetal material fibre, the latter is the reinforcement component. This research tries to get the mixture that provides the best mechanical properties to the biocomposite material. The different mixtures behaviour has been studied in a 3D printer. Currently, bast fibre is used as a reinforcing agent in polymers, substituting those with a bigger ecological footprint. Previous studies determined that kenaf fibre improve mechanical properties of matrix polymer. On the other hand, one way of bringing the circular economy closer to agricultural activity is by reusing its waste. Parts of the rice plant, thistle or paulownia bark are discarded because of their high mineral content. In this work, filaments have been manufactured for use in fused deposition modelling (FDM) from kenaf fibres, cork residues, rice, vine shoots, paulownia, poplar and thistle, and bars of PLA mixed with kenaf fibre through extrusion process.


  • Circular economy
  • PLA
  • Natural fibre
  • Biomaterial
  • Biocomposite

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The authors thank the financial support of the MESOCEX project (CICYTEX - Junta de Extremadura – co-financed with FEDER funds) and IDERCEXA POCTEP Project (Operational Program for Cross-Border Cooperation Spain-Portugal).

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Correspondence to L. Royano .

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Acevedo, M., Royano, L., Parralejo, A.I., Cabanillas, J., González, J.F., González, J. (2021). 3D Printing Filaments from Kenaf, Poplar and Agricultural Residues. In: da Costa Sanches Galvão, J.R., et al. Proceedings of the 1st International Conference on Water Energy Food and Sustainability (ICoWEFS 2021). ICoWEFS 2021. Springer, Cham.

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