Nanostructured block copolymer muscles

Autor: Chao Lang, Elisabeth C. Lloyd, Kelly E. Matuszewski, Yifan Xu, Venkat Ganesan, Rui Huang, Manish Kumar, Robert J. Hickey
Rok vydání: 2022
Předmět:
Zdroj: Nature Nanotechnology. 17:752-758
ISSN: 1748-3395
1748-3387
DOI: 10.1038/s41565-022-01133-0
Popis: High-performance actuating materials are necessary for advances in robotics, prosthetics and smart clothing. Here we report a class of fibre actuators that combine solution-phase block copolymer self-assembly and strain-programmed crystallization. The actuators consist of highly aligned nanoscale structures with alternating crystalline and amorphous domains, resembling the ordered and striated pattern of mammalian skeletal muscle. The reported nanostructured block copolymer muscles excel in several aspects compared with current actuators, including efficiency (75.5%), actuation strain (80%) and mechanical properties (for example, strain-at-break of up to 900% and toughness of up to 121.2 MJ m
Databáze: OpenAIRE
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