Recent Advances, Challenges and Prospects of Top-down Design of 4D-printed Shape Memory Polymer Functional Components

doi:10.3901/JME.260023

Abstract

Abstract: The shape, performance and function of 4D printed shape memory polymer functional components can be controlled by time or space under specific external excitation, and simple structure can be transformed into a three-dimensional structure with complex geometry to realize specific function and performance characterization. The design of 4D printed shape memory polymer functional components is one of the key factors affecting function realization and performance characterization. This study summarizes the research progress of 4D printed shape memory polymer functional components from the aspects of design principles, design methods and process parameters. The outstanding achievements and innovative technologies of material component design, programmable structure design and preparation parameter design of 4D printed shape memory polymer are analyzed and discussed. The engineering applications of 4D printed shape memory polymer functional components in the fields of electronic devices, medical devices and soft robots are introduced. Finally, the challenges faced by 4D printing shape memory polymer functional components are summarized and the development trend of 4D printing design in the future is prospected.

Key words: top-down design, 4D printing, functional component, shape memory polymer

CLC Number:

TP391

GAO Yicong, WU Dong, DUAN Dongxin, ZENG Siyuan, ZHENG Hao, MI Shanghua, QIU Hao, TAN Jianrong. Recent Advances, Challenges and Prospects of Top-down Design of 4D-printed Shape Memory Polymer Functional Components[J]. Journal of Mechanical Engineering, 2026, 62(1): 310-328.

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