Abstract

DELGADO, Carolina Vasco Costa; BREUER, Rebecca Louise  and  FORMAN, Gabriela Santos. Organic Waste Bio-Based Materials for 3D Extrusion: Eggshells, Shells Sand and Coffee grains with Sodium Alginate. Revista Convergências [online]. 2022, vol.15, n.29, pp.77-88.  Epub May 31, 2022. ISSN 2184-0180.  https://doi.org/10.53681/c1514225187514391s.29.133.

This study explores bioplastics fabrication based on alginate polymer with added glycerine as a plasticizer, creating flexibility, and organic waste was used as a filler avoiding shrinkage.

Exploratory, observational and experimental, Literature Review, amongst other methods, were used within a Qualitative and Quantitative Methodology by Design through practice. The research material was documented through an open-source FabLab platform and shared with a community of researchers and future designers who want to design innovative and environmentally friendly materials to replace synthetic plastics. Fifteen different bio-based materials resulted from this experiment, applicable for varied applications.

Results show that different fillers added to sodium alginate and glycerine present ample opportunities for sustainable bio-ceramics, bio-composites and bio-plastics.

Keywords : materials; alginate bio-composites; open-source; 3D handheld printing; FabLab.

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