Open Access4D printing of shape memory polymer via liquid crystal display (LCD) stereolithographic 3D printing
Author(s) -
Wenqian Shan,
Yifan Chen,
Mo Hu,
Shigang Qin,
Peng Liu
Publication year - 2020
Publication title -
materials research express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 35
ISSN - 2053-1591
DOI - 10.1088/2053-1591/abbd05
Subject(s) - materials science , 3d printing , liquid crystal display , digital light processing , shape memory polymer , flexible display , shape memory alloy , actuator , composite material , transparency (behavior) , optoelectronics , computer science , thin film transistor , projector , computer security , layer (electronics) , artificial intelligence , computer vision
In this study, we report a new epoxy acrylate based shape memory polymer (SMP) fabricated by Liquid crystal display (LCD) Stereolithographic 3D printing. The printed 3D object has a high resolution and high transparency in visible light region. The uniaxial tensile tests showed enhanced tensile toughness and tunable mechanical properties. The fix-recovery and cycle tests indicated high shape recovery properties including high shape recovery rate and excellent cycling stability. In addition, a smart electrical valve actuator was fabricated that can be used in fast heat or electricity responsive electrical circuits. LCD 3D printing provides a low-cost and high efficient way to fabricate fast responsive SMP, which can be used in wide applications in various fields on aerospace engineering, biomedical devices, soft robots and electronic devices.