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Tough and Photo-Plastic Liquid Crystal Elastomer with a 2-Fold Dynamic Linker for Artificial Muscles.
Wu, Yongpeng; Pei, Danfeng; Wei, Fang; Liu, Ping; Li, Mingjie; Li, Tingxi; Li, Chaoxu.
Afiliación
  • Wu Y; School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China.
  • Pei D; Group of Biomimetic Smart Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, CAS & Shandong Energy Institute, Songling Road 189, Qingdao 266101, P. R. China.
  • Wei F; Group of Biomimetic Smart Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, CAS & Shandong Energy Institute, Songling Road 189, Qingdao 266101, P. R. China.
  • Liu P; Group of Biomimetic Smart Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, CAS & Shandong Energy Institute, Songling Road 189, Qingdao 266101, P. R. China.
  • Li M; Group of Biomimetic Smart Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, CAS & Shandong Energy Institute, Songling Road 189, Qingdao 266101, P. R. China.
  • Li T; Group of Biomimetic Smart Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, CAS & Shandong Energy Institute, Songling Road 189, Qingdao 266101, P. R. China.
  • Li C; School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, P. R. China.
ACS Appl Mater Interfaces ; 15(37): 44205-44211, 2023 Sep 20.
Article en En | MEDLINE | ID: mdl-37672356
Liquid crystal elastomers (LCEs) have been optimized by combining cross-linkers and dynamic bonds to achieve a reversible actuation behavior comparable to living skeletal muscles. In this study, one unique type of segment with 2-fold dynamic properties was introduced into LCEs, which offered not only dynamic diselenide covalent bonds for thermo-/photoplasticity but also H-bond arrays for dynamic cross-linking and mechanical robustness. Besides self-healing, self-welding, and recyclability, the LCEs were reprogrammable with elevated temperature or intensive visible light irradiation. The resultant LCEs gave an actuation blocking stress of 1.96 MPa and an elastic modulus of 14.4 MPa at 80 °C. The actuation work capacity reached 135.2 kJ m-3. When incorporating the Joule electrode or photothermal materials, the LCEs could be programmed as the electricity-driven and photothermal artificial muscles and thereby promised the application both as a biomimetic artificial hand and as an energy collector from sunlight. Thus, the 2-fold dynamic LCEs offered the pathway of enabling the reversible actuation behavior comparable to living skeletal muscles and promising applications in sustainable actuators, artificial muscles, and soft robots.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cristales Líquidos Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2023 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cristales Líquidos Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2023 Tipo del documento: Article Pais de publicación: Estados Unidos