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Stereolithographic 3D printing of extrinsically self-healing composites.

ABSTRACT: We demonstrate for the first time the direct stereolithographic 3D printing of an extrinsically self-healing composite, comprised of commercial photocurable resin modified with anisole and PMMA-filled microcapsules. The composites demonstrate solvent-welding based autonomous self-healing to afford 87% recovery of the initial critical toughness. This work illustrates the potential of stereolithographic printing to fabricate self-healing composites with user-defined structures, avoiding the need for extensive rheological optimization of printing inks, like in direct-write 3D printing. Importantly, this work also demonstrates the inclusion of microcapsules into 3D printing resins to incorporate additional functionality into printed composites, which could be adapted for applications beyond self-healing materials.

SUBMITTER: Sanders P

PROVIDER: S-EPMC6344598 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature

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Stereolithographic 3D printing of extrinsically self-healing composites.

Sanders Polly P Young Adam J AJ Qin Yang Y Fancey Kevin S KS Reithofer Michael R MR Guillet-Nicolas Rémy R Kleitz Freddy F Pamme Nicole N Chin Jia Min JM

Scientific reports 20190123 1

We demonstrate for the first time the direct stereolithographic 3D printing of an extrinsically self-healing composite, comprised of commercial photocurable resin modified with anisole and PMMA-filled microcapsules. The composites demonstrate solvent-welding based autonomous self-healing to afford 87% recovery of the initial critical toughness. This work illustrates the potential of stereolithographic printing to fabricate self-healing composites with user-defined structures, avoiding the need f ...[more]

PMID: 30675014

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