.png){kind=icon}
返回
4D Printed Shape-Memory Elastomer for Thermally Programmable Soft Actuators
.png){kind=icon}
OA
AI
DOI：10.1021/acsami.3c07436.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Polymeric shape-memory elastomers can recover to a permeantshapefrom any programmed deformation under external stimuli. They are mostlycross-linked polymeric materials and can be shaped by three-dimensional(3D) printing. However, 3D printed shape-memory polymers so far onlyexhibit elasticity above their transition temperature, which resultsin their programmed shape being inelastic or brittle at lower temperatures.To date, 3D printed shape-memory elastomers with elasticity both belowand above their transition temperature remain an elusive goal, whichlimits the application of shape-memory materials as elastic materialsat low temperatures. In this paper, we printed, for the first time,a custom-developed shape-memory elastomer based on polyethylene glycolusing digital light processing, which possesses elasticity and stretchabilityin a wide temperature range, below and above the transition temperature.Young's modulus in these two states can vary significantly,with a difference of up to 2 orders of magnitude. This marked differencein Young's modulus imparts excellent shape-memory propertiesto the material. The difference in Young's modulus at differenttemperatures allows for the programming of the pneumatic actuatorsby heating and softening specific areas. Consequently, a single actuatorcan exhibit distinct movement modes based on the programming processit undergoes.
Keyword:
4D printing
shape memory polymers
shape memoryelastomers
digital light processing
programmablepneumatic actuators
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
8.2
论文数:
6.1W
被引数:
38.7W
机构
引用论文
分享收藏Highly Fluorinated Methacrylates for Optical 3D Printing of Microfluidic Devices用于微流控器件光学3D打印的高氟化甲基丙烯酸酯OAAI
OAAI分享收藏分享收藏分享收藏Summary Protocol for a Multi-Centre Randomised Controlled Trial of Enteral Lactoferrin Supplementation in Newborn Very Preterm Infants (ELFIN).png)
Neonatology
NeonatologyIF0
PREAI
分享收藏分享收藏
查看更多内容