6th CIDAG - Conference Paper Presentation

Organic Waste Bio-Based Materials for 3D Extrusion: Eggshells, Shells Sand and Coffee grains with Sodium Alginate
6th CIDAG International Conference in Design and Graphic Arts - Go green for 2030, organized by ISEC Lisboa - Higher Institute of Education and Sciences and Instituto Politécnico de Tomar

This study was based on the Open-source Hardware assignment, aproved by blind double peer-review, presented and aproved for publishing.

It was a collaboration with my Fabricademy coleague Rebecca Luise Breuer, PhD, from Amsterdam University of Applied Sciences, Netherlands, and my supervisor Gabriela Forman, PhD, from Lisbon School of Architecture, Universidade de Lisboa, Portugal.

The authors gratefully acknowledge the collaboration with CIAUD, Research Centre for Architecture, Urbanism and Design, Lisbon School of Architecture, Universidade de Lisboa; and research group REDES Research and Education in Design.

This work is financed by national funds through FCT - Fundação para a Ciência e a Tecnologia, I.P., under the Strategic Project with the references UIDB/04008/2020 and UIDP/04008/2020, and by PhD Research Scholarship FCT 2021.04708.BD.


Abstract

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. 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 able 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

Bio-based materials, alginate bio-composites, open-source, 3D handheld printing, FabLab

Main results - sneak peak

Eggshell
Eggshels Bio-ceramic, Fabricademy class 2020, photo by Luís Silva Campos

ShellSand
Shell Sand Bio-composite, Fabricademy class 2020, photo by Luís Silva Campos

Coffee
Coffee Bio-plastic, Fabricademy class 2020, photo by Luís Silva Campos

Paper

This paper was aproved for publication in the scientific research journal Convergences - Journal of Research and Arts Education published by Edições IPCB – Instituto Politécnico de Castelo Branco.

Presentation

PDF