Li Xiying, Zhang Jia Ming, Yi Xin, Huang Zhongyi, Lv Pengyu, Duan Huiling
State Key Laboratory for Turbulence and Complex Systems Department of Mechanics and Engineering Science BIC-ESAT College of Engineering Peking University Beijing 100871 China.
CAPT HEDPS and IFSA Collaborative Innovation Center of MoE Peking University Beijing 100871 China.
Adv Sci (Weinh). 2018 Nov 28;6(3):1800730. doi: 10.1002/advs.201800730. eCollection 2019 Feb 6.
3D printing with a high degree of spatial and compositional precision could open new avenues to the design and fabrication of functional composites. By combining the direct ink writing and microfluidics, a multimaterial 3D printing system for fabricating textured composites with liquid inclusions of programmable spatial distribution and compositions is reported here. Phase diagrams for the rational selection of desired printing parameters are determined through a combination of simple theoretical analysis and experimental studies. 1D, 2D, and 3D structures programmed with desired inclusion patterns and compositions are fabricated. Moreover, the versatility of this 3D printing framework in fabricating layered composite beams of tunable thermal property and self-healing materials is demonstrated. The proposed multimaterial microfluidic 3D printing framework could be broadly applicable for structural composites and soft robotic devices.
具有高度空间和成分精度的3D打印可为功能复合材料的设计和制造开辟新途径。通过结合直接墨水书写和微流体技术，本文报道了一种用于制造具有可编程空间分布和成分的液体夹杂物的纹理复合材料的多材料3D打印系统。通过简单的理论分析和实验研究相结合，确定了用于合理选择所需打印参数的相图。制造了具有所需夹杂物图案和成分的一维、二维和三维结构。此外，还展示了这种3D打印框架在制造具有可调热性能的层状复合梁和自修复材料方面的多功能性。所提出的多材料微流体3D打印框架可广泛应用于结构复合材料和软机器人设备。
