4D printing of shape memory polymer via liquid crystal display (LCD) stereolithographic 3D printing. (9th October 2020)

• Record Type: Journal Article
• Authors: Shan, Wubin; Chen, Yifan; Hu, Mo; Qin, Shigang; Liu, Peng
• Is Part Of: Materials research express. Volume 7:Number 10(2020)
• Publication Date: 2020-10-09
• Subjects: shape memory polymer -- LCD -- transparency -- high shape recovery rate -- fast responsive; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/abbd05
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: 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.