Reconfigurable 4D printing via mechanically robust covalent adaptable network shape memory polymer

Li，Honggeng1,2,3; Zhang，Biao4; Ye，Haitao1,2,5; Jian，Bingcong1,2; He，Xiangnan1,2; Cheng，Jianxiang1,2; Sun，Zechu1,2; Wang，Rong1,2; Chen，Zhe1,2; Lin，Ji6,7; Xiao，Rui7; Liu，Qingjiang1,2; Ge，Qi1,2

2024-05-17

10.1126/sciadv.adl4387

Science Advances   影响因子和分区

2375-2548

4D printing enables 3D printed structures to change shape over “time” in response to environmental stimulus. Because of relatively high modulus, shape memory polymers (SMPs) have been widely used for 4D printing. However, most SMPs for 4D printing are thermosets, which only have one permanent shape. Despite the efforts that implement covalent adaptable networks (CANs) into SMPs to achieve shape reconfigurability, weak thermomechanical properties of the current CAN-SMPs exclude them from practical applications. Here, we report reconfigurable 4D printing via mechanically robust CAN-SMPs (MRC-SMPs), which have high deformability at both programming and reconfiguration temperatures (>1400%), high T (75°C), and high room temperature modulus (1.06 GPa). The high printability for DLP high-resolution 3D printing allows MRC-SMPs to create highly complex SMP 3D structures that can be reconfigured multiple times under large deformation. The demonstrations show that the reconfigurable 4D printing allows one printed SMP structure to fulfill multiple tasks.

SCI ; EI

英语

第一 ; 通讯

2-s2.0-85193384920

Scopus

1.Shenzhen Key Laboratory of Soft Mechanics and Smart Manufacturing,Southern University of Science and Technology,Shenzhen,China
2.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,China
3.School of Advanced Engineering,Great Bay University,Dongguan,China
4.Xi’an Institute of Flexible Electronics,Northwestern Polytechnical University,Xi'an,127 West Youyi Road,China
5.Department of Mechanical Engineering,City University of Hong Kong,Hong Kong,Kowloon, SAR,Hong Kong
6.Center for Mechanics Plus under Extreme Environments,School of Mechanical Engineering and Mechanics,Ningbo University,Ningbo,China
7.State Key Laboratory of Fluid Power and Mechatronic System,Department of Engineering Mechanics,Zhejiang University,Hangzhou,China

Li，Honggeng,Zhang，Biao,Ye，Haitao,et al. Reconfigurable 4D printing via mechanically robust covalent adaptable network shape memory polymer[J]. Science Advances,2024,10(20).

Li，Honggeng.,Zhang，Biao.,Ye，Haitao.,Jian，Bingcong.,He，Xiangnan.,...&Ge，Qi.(2024).Reconfigurable 4D printing via mechanically robust covalent adaptable network shape memory polymer.Science Advances,10(20).

Li，Honggeng,et al."Reconfigurable 4D printing via mechanically robust covalent adaptable network shape memory polymer".Science Advances 10.20(2024).