Sequential Multimaterial Additive Manufacturing of Functionally Graded Biopolymer Composites
Name
3dp.2020.0171.pdf
Description
Published version
Size
1.42 MB
Format
Adobe PDF
Checksum (MD5)
bcfff0ed83f1c163bea00909c55facdc
Author(s)
Lee, Nic A
Weber, Ramon E
Kennedy, Joseph H
Van Zak, Josh J
Smith, Miana
Duro-Royo, Jorge
Oxman, Neri
Date Issued
2020
Journal
3D Printing and Additive Manufacturing
Publisher
Mary Ann Liebert Inc
Version
Final published version
Abstract
© Copyright 2020, Mary Ann Liebert, Inc., publishers 2020. 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.
MIT Department
Massachusetts Institute of Technology. Media Laboratory
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1089/3DP.2020.0171
