Sequential Multimaterial Additive Manufacturing of Functionally Graded Biopolymer Composites
| Autor: | Jorge Duro-Royo, Miana Smith, Neri Oxman, Ramon E. Weber, Josh J. Van Zak, Nic A. Lee, Joseph Henry Kennedy |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
food.ingredient Pectin Natural materials Materials Science (miscellaneous) Original Articles engineering.material Industrial and Manufacturing Engineering Chitosan chemistry.chemical_compound food chemistry Chitin Chemical engineering Self-healing hydrogels engineering Biopolymer Cellulose |
| Zdroj: | 3D Print Addit Manuf |
| ISSN: | 2329-7670 2329-7662 |
| DOI: | 10.1089/3dp.2020.0171 |
| Popis: | Cellulose, chitin, and pectin are three of the most abundant natural materials on Earth. Despite this, large-scale additive manufacturing with these biopolymers is used only in limited applications and frequently relies on extensive refinement processes or plastic additives. We present novel developments in a digital fabrication and design approach for multimaterial three-dimensional printing of biopolymers. Specifically, our computational and digital fabrication workflow—sequential multimaterial additive manufacturing—enables the construction of biopolymer composites with continuously graded transitional zones using only a single extruder. We apply this method to fabricate structures on length scales ranging from millimeters to meters. Transitional regions between materials created using these methods demonstrated comparable mechanical properties with homogenous mixtures of the same composition. We present a computational workflow and physical system support a novel and flexible form of multimaterial additive manufacturing with a diverse array of potential applications. |
| Databáze: | OpenAIRE |
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