聚氨酯
材料科学
执行机构
智能材料
自愈
聚合物
复合材料
聚乙二醇
热的
偶氮苯
聚合
高分子化学
化学工程
计算机科学
医学
替代医学
物理
病理
人工智能
气象学
工程类
作者
Dong Chen,Xiaolei Yue,Yaodu Zhang,Yucheng Wang,Ren Z,Guan Zhang
标识
DOI:10.1002/marc.202300281
摘要
Intelligent actuating materials have drawn enormous attention because of their potential applications in soft robots, smart sensors, bionics, etc. Aiming to integrate light, thermal, and humidity stimuli deformations and self-healing function into a single polymer, a smart actuating polyurethane material CPPU-50 is designed and successfully synthesized through co-polymerization of azobenzene-containing Azo-C12 , polyethylene glycol 200 (PEG200), and 4,4'-diphenylmethane diisocyanate (MDI) at a ratio of 1:1:2. The obtained polyurethane CPPU-50 exhibits good photoinduced bending, thermal responsive shape memory effect, humidity triggered deflections and self-healing properties. Furthermore, an actuator combining light and thermal stimuli is created and the self-healing CPPU-50 film can withstand the object of 1800 times without tearing. This work can pave a way for further development of long-lived multi-stimuli-responsive actuating devices and intelligent materials.
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