Recyclable Dynamic Hydrogen Bonding and Disulfide Based Polymer‐Silver Nanoparticle Hybrid Triboelectric Nanogenerator for Artificial Intelligence‐Assisted High‐Precision Smart Insoles

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

Abstract With rapid advancement in the field of smart technology, reshapeable devices have garnered widespread interest. Liquid‐free flexible materials eliminate risk leakage thus enhancing user safety along with being recyclable. However, poor network fluidity and difficulty fully disconnecting cross‐links limited its potential as a device. In this work, silver nanoparticles (AgNPs) are doped into physically cross‐linked dynamic linear polydimethylsiloxane (PIAU) to develop closed‐loop recyclable high‐dielectric nanocomposite. This nanocomposite exhibits moderate elastoviscosity‐transition temperature spatial remodelability based on multiple types reversible hydrogen bonds S─Ag bonds. AgNPs sprayed surface form conductive coating stabilized by at polymer‐nano interface. Based refined assembly, an antibacterial triboelectric nanogenerator (TENG) is developed applied high‐precision insole. The insole 16 TENG sensors, resulting simplified system that employs machine learning (ML) for personalized motion monitoring, including recognition gait classification. Five algorithm models ensure high accuracy enable it further expand abnormal alarm system. work presents new reliable environmentally friendly strategy design high‐performance sustainable devices.

Language: Английский

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MXene initiated in situ construction of superhydrophobic and electrically conductive nanofibrous composites for wearable multifunctional sensing

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 508, P. 161074 - 161074

Published: Feb. 26, 2025

Language: Английский

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Advanced flexible self-healing triboelectric nanogenerators for applications in complex environments

Nanoscale, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

With the advent of smart era, demand for clean energy is rising, and flexible triboelectric nanogenerators (F-TENGs) based on elastomers have garnered significant attention. Based principles electrostatic induction coupling, F-TENGs can convert mechanical motion into electrical are widely utilized in wearable devices blue energy. offer a simple design, ease manufacturing, usage scenarios. However, several weaknesses still limit their development. For example, F-TENG materials cannot recover from fatigue damage prone to output performance degradation under frequent friction or complex external conditions, leading failure. To address these issues, researchers explored use self-healable polymer-based layers electrodes. This review will provide detailed summary key scientific technological challenges faced by harsh environments, including ambient, high low temperatures, humidity, strong acids bases. Furthermore, research progress addressing issues future development also be presented explored. paper aims valuable insights guidance in-depth broad applications TENGs.

Language: Английский

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Self-healing and degradable bio-based triboelectric elastomer for self-powered wildlife monitoring systems

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162533 - 162533

Published: April 1, 2025

Language: Английский

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A Mechanically Strong, Aging-Resistant, and Reprocessable Elastomer Based on Carboxylated Nitrile Butadiene Rubber (XNBR) Composite for Photothermal Conversion Application

ACS Applied Polymer Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 11, 2025

Language: Английский

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Bionic learning in MXene-based actuators: An emerging frontier

Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: unknown, P. 103525 - 103525

Published: April 1, 2025

Language: Английский

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A novel polyurethane coating with triple functions: superhydrophobicity, self-healing and electroconductibility

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 55, P. 105451 - 105451

Published: Nov. 15, 2024

Language: Английский

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Mechanically robust and electrically conductive nanofiber composites with enhanced interfacial interaction for strain sensing

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 673, P. 190 - 201

Published: June 6, 2024

Language: Английский

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Self-Repairable Carbon Fiber-Reinforced Epoxy Vitrimer Actuator with Multistimulus Responses and Programmable Morphing

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(43), P. 59188 - 59201

Published: Oct. 16, 2024

Smart shape-changing structures in aerospace applications are vulnerable to damage harsh environments. Balancing high mechanical performance with self-repair capabilities poses a challenge due inherent trade-offs between strength and flexibility. To address this challenge, an asymmetric bilayer-structured actuator was fabricated using commercially available continuous carbon fiber tows (CFs) as the passive layer dynamic cross-linked epoxy vitrimer active layer. The construction of vitrimer-CF involves simple scalable hot-pressing process, resulting tensile 234 MPa interfacial bonding 405 N·m–1. This exhibits remarkable deformation capability (210°/7 s) efficient ability under various stimuli, including thermal (60–160 °C), light (0.4–1.0 W·cm–2), electric (2–4 V), solvent (acetone). By adjustment orientation angle CFs, complex left-handed right-handed curling can be achieved. Leveraging insights from photothermal/electrothermal actuation mechanisms, quadruped crawling robot is developed capable 4 cm single illumination. lift objects 45 times its weight when subjected stimuli. Additionally, flap constructed achieve change 63° within 10 s stimulus, enabling remote control over aircraft flight angle. These results demonstrate potential for advanced intelligent structures.

Language: Английский

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Mechanically robust and thermal stable polyurethane elastomers with self‐healing and recycling ability

Polymer Engineering and Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

Abstract A series of supramolecular interaction‐based polyurethane elastomers (SPUEs) were synthesized from the reactions hexamethylene diisocyanate‐functionalized 2‐ureido‐4[1H]‐pyrimidinone (UPy) derivatives and polytetrahydrofuran (PTHF), followed by with polyether amines. The tensile strength, elongation at break toughness optimum SPUE system can reach 62 MPa, 693%, 189 MJ·m −3 , respectively. All SPUEs have much higher strength than reference materials while maintaining large owing to increased hydrogen (H)‐bonding sites favorable crosslinked networks. possess double glass transition temperatures display good multi‐shape memory behaviors resulting different soft hard domains. nanophase‐separated structures, which endow them excellent transparency within visible light wavelengths ranging 500 800 nm. Owing adequate H‐bonds, exhibit stress relaxation, shape‐reconfigurability, outstanding healing/recycling properties. damaged show high healing efficiency 77–97% after heat treatment 100°C for 12 h. used be recycled multiple times dissolving in N, N‐dimethylformamide (DMF) ~110°C 20–30 min, third mechanical retention rate up 100%. Highlights Elastomer was constructed through H‐bonds elastomer has comprehensive extremely low temperatures. a self‐healing ~97% 100°C. times.

Language: Английский

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