International Journal of Biological Macromolecules, Год журнала: 2024, Номер 283, С. 137907 - 137907
Опубликована: Ноя. 20, 2024
Язык: Английский
Journal of Materials Chemistry A, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
A synchronous differential orientation strategy was proposed for the fabrication of programmable liquid crystal elastomers with aid dual dynamic covalent bonds, which are composed boronic ester bonds and siloxane bonds.
Язык: Английский
Процитировано
0
Macromolecular Rapid Communications, Год журнала: 2025, Номер unknown
Опубликована: Апрель 7, 2025
Abstract Liquid crystal elastomers (LCEs) are smart materials that integrate the anisotropic properties of liquid crystals and elasticity polymers, enabling large, reversible shape changes in response to various external stimuli. These distinctive make LCEs a promising candidate for applications actuators, soft robotics, sensors, optics. The morphing behaviors fundamentally governed by alignment mesogenic molecules, which transition from ordered disordered states upon stimulation, resulting controllable transformations. Various techniques exploiting manipulation molecules continuously explored as way effectively actuate behaviors. This review provides an overview key techniques, including surface anchoring, field effect, mechanical alignment, explores how these methods support design tailored specific applications. relationship between is discussed, offering comprehensive alignment‐based strategies. Furthermore, highlights significant potential advanced such artificial muscles, reconfigurable optical devices. By providing foundational understanding LCEs’ morphing, this aims inspire more scientific innovations technical advances their application.
Язык: Английский
Процитировано
0
AIMS Materials Science, Год журнала: 2025, Номер 12(2), С. 301 - 317
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Chemical Engineering Journal, Год журнала: 2024, Номер 495, С. 153268 - 153268
Опубликована: Июнь 18, 2024
Язык: Английский
Процитировано
2
Polymer Composites, Год журнала: 2024, Номер 45(18), С. 17257 - 17267
Опубликована: Авг. 21, 2024
Abstract Dielectric elastomer actuators (DEAs) have garnered widespread attention due to their unique blend of attributes, including high energy density, exceptional efficiency, inherent softness, silent operation, and muscle‐like performance, all which are highly desirable for soft robotics applications. However, despite these benefits, the practical application DEAs is hindered by low dielectric constant relatively small actuated deformation. In this work, we significantly enhanced strain integrating a composite material consisting CaCu 3 Ti 4 O 12 /MXene/silicone elastomers. We combined conductive MXene nanosheets (MX) synthesized via solution etching technique with (CCTO) particles. The KH550 utilized as coupling agent modification mixed CCTO‐MX CCTO‐MXK/PDMS film, well‐dispersed 2.5 wt% filling fraction, exhibits remarkable 7.91 at 100 Hz, coupled an outstanding performance 9.36% 13.3 V μm −1 . These results instrumental in furthering fabrication substantial strain, paving way advancements field. Highlights films, comprising modified particles along agent, were successfully prepared. sensitivity film studied. mechanism enhancement was analyzed from macroscopic microscopic levels.
Язык: Английский
Процитировано
1
Nanomaterials, Год журнала: 2024, Номер 14(13), С. 1094 - 1094
Опубликована: Июнь 26, 2024
The efficient dispersion of single-walled carbon nanotubes (SWCNTs) has been the subject extensive research over past decade. Despite these efforts, achieving individually dispersed SWCNTs at high concentrations remains challenging. In this study, we address limitations associated with conventional methods, such as defect formation, excessive surfactant use, and use corrosive solvents. Our novel method utilizes spontaneous charging in a solvated electron system created by dissolving potassium hexamethyl phosphoramide (HMPA). resulting charged (c-SWCNTs) can be directly medium using only magnetic stirring, leading to defect-free c-SWCNT dispersions up 20 mg/mL. successful individual strands is confirmed their liquid-crystalline behavior. Importantly, for c-SWCNTs exhibits no reactivity metals, polymers, or other organic This versatility enables wide range applications, including electrically conductive free-standing films produced via blade coating, wet-spun fibers, membrane electrodes, thermal composites, core-shell hybrid microparticles.
Язык: Английский
Процитировано
0
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(46), С. 63851 - 63860
Опубликована: Ноя. 7, 2024
Electrodes with high electrical conductivity, yet good flexibility and mechanical compliance, are critical for electroactive artificial muscles. Herein, a promising liquid metal (LM) electrode is proposed by transforming eutectic gallium–indium (EGaIn) LM surface tension into paste-like solid Ga2O3 shells. The developed compliant not only shows conductivity negligible additional stiffness but also displays excellent stability during cyclic actuation. Based on the electrode, poly(vinyl chloride) gel (PVCG) muscle exhibits maximum actuation strain of 18.7% at low electric field strength 9 V μm–1 maintains durability without obvious performance attenuation after 10,000 s. A comparison that as-developed PVCG superior over based widely used carbon electrodes. Moreover, an upper limb crawling worm were manufactured to explore great potential in robotic field. In addition, practical application demonstration biomimetics successfully fulfilled through design reasonable structures. Due its easy fabrication, newly high-performance muscles bionic robots.
Язык: Английский
Процитировано
0
International Journal of Biological Macromolecules, Год журнала: 2024, Номер 283, С. 137907 - 137907
Опубликована: Ноя. 20, 2024
Язык: Английский
Процитировано
0