材料科学
3D打印
纳米技术
自愈水凝胶
相(物质)
微球
化学工程
复合材料
高分子化学
化学
有机化学
工程类
作者
Qirui Wu,Yidan Xu,Songjiu Han,Anbang Chen,Shouxin Zhang,Yujia Chen,Xiaoxiang Yang,Lunhui Guan
出处
期刊:ACS Nano
[American Chemical Society]
日期:2024-10-30
标识
DOI:10.1021/acsnano.4c08896
摘要
Hydrogels are considered indispensable materials for fabricating flexible devices with their excellent flexibility and workability. To efficiently transform hydrogels into flexible devices, three-dimensional printing technology offers a powerful approach. However, hydrogels suitable for a single printing strategy have proven inadequate for fabricating flexible integrated devices. Herein, we report a simple and two-phase 3D-printed hydrogel (TP-3DPgel) achieved through a controlled microphase-separation strategy. The microphase-separation regions can undergo reversible changes through pH adjustment, giving TP-3DPgel an extremely broad viscosity tuning range from liquid to solid states. This overcomes limitations imposed by extreme rheological properties in different 3D printing processes, making this ink suitable for both liquid-phase digital light processing (DLP) 3D printing and solid-phase direct ink writing (DIW) 3D printing. Simultaneously, the TP-3DPgel exhibits excellent mechanical properties, including high stretchability (>1100%), high strength (0.82 MPa), low hysteresis (∼5.4%), and fatigue resistance. Moreover, TP-3DPgel exhibits high-resolution 3D printing capabilities, making it suitable for both DLP and DIW-3D printing to achieve high-quality fabrication from 2D filaments to 3D structures. Interestingly, we utilized both DIW and DLP-3D printing to fabricate various functional flexible devices, including energy storage devices, sensors, and electronic skins, showing in detail the outstanding compatibility and processability of TP-3DPgel, which offered a reliable strategy for 3D printing functional devices.
科研通智能强力驱动
Strongly Powered by AbleSci AI