Sanders Polly, Young Adam J, Qin Yang, Fancey Kevin S, Reithofer Michael R, Guillet-Nicolas Rémy, Kleitz Freddy, Pamme Nicole, Chin Jia Min
Department of Chemistry, University of Hull, Cottingham Road, Hull, HU6 7RX, United Kingdom.
Department of Inorganic Chemistry, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090, Vienna, Austria.
Sci Rep. 2019 Jan 23;9(1):388. doi: 10.1038/s41598-018-36828-9.
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.
我们首次展示了一种外在自修复复合材料的直接立体光刻3D打印，该复合材料由用苯甲醚和聚甲基丙烯酸甲酯填充的微胶囊改性的商用光固化树脂组成。这些复合材料展示了基于溶剂焊接的自主自修复能力，可实现初始临界韧性87%的恢复。这项工作说明了立体光刻印刷在制造具有用户定义结构的自修复复合材料方面的潜力，避免了像在直写式3D打印中那样对印刷油墨进行广泛的流变学优化的需要。重要的是，这项工作还展示了将微胶囊纳入3D打印树脂中，以便将额外功能融入打印复合材料中，这可适用于自修复材料以外的应用。
