High‐Toughness and High‐Strength Solvent‐Free Linear Poly(ionic liquid) Elastomers

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(7)

Published: Oct. 11, 2023

Abstract Solvent‐free elastomers, unlike gels, do not suffer from solvent evaporation and leakage in practical applications. However, it is challenging to realize the preparation of high‐toughness (with both high stress strain) ionic elastomers. Herein, linear poly(ionic liquid) (PIL) elastomers are constructed via supramolecular networks formed by polymerization halometallate liquid (IL) monomers, without any chemical crosslinking. The obtained PIL exhibit strength (16.5 MPa), Young's modulus (157.49 toughness (130.31 MJ m −3 ), crack propagation insensitivity (fracture energy 243.37 kJ −2 owing enhanced intermolecular noncovalent interactions chains. Furthermore, elastomer‐based strain, pressure, touch sensors have shown sensitivity. crosslinked network endows with self‐healing recyclable properties, broad application prospects fields flexible sensor devices, health monitoring, human–machine interaction.

Language: Английский

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Skin‐Like Transparent, High Resilience, Low Hysteresis, Fatigue‐Resistant Cellulose‐Based Eutectogel for Self‐Powered E‐Skin and Human–Machine Interaction

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(13)

Published: Dec. 14, 2023

Abstract Artificial electronic skin (E‐skin), a class of promising materials mimicking the physical‐chemical and sensory performance human skin, has gained extensive interest in field health‐monitoring robotic skins. However, developing E‐skin simultaneously achieving high resilience, hysteresis‐free, absent external power is always formidable challenge. Herein, liquid‐free eutectic gel‐based self‐powered with fatigue resistance, conductivity prepared by introducing hydroxypropyl cellulose (HPC) into metal salt‐based deep solvents (MDES). The unique structural design cellulose‐anchored permanent entangled poly(acrylic acid) (PAA) chain, combination rapid broken/reconstruction dense dynamic sacrificial bonds, realizes fabrication high‐elastic negligible hysteresis. This further demonstrates practical application cellulose‐based eutectogel transmittance (92%), (36.6 mS m −1 ), resilience (98.1%), excellent environment stability robust triboelectric nanogenerator for energy harvesting health‐caring human‐machine interaction.

Language: Английский

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Carbon Quantum Dot-Functionalized Dermis-Derived Transparent Electronic Skin for Multimodal Human Motion Signal Monitoring and Construction of Self-Powered Triboelectric Nanogenerator

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(35), P. 46771 - 46788

Published: Aug. 21, 2024

Electronic skin (e-skin) is considered as a highly promising interface for human-computer interaction systems and wearable electronic devices. Through elaborate design assembly of various materials, it possesses multiple characteristics similar to human skin, including remarkable flexibility, stretchability, sensitivity temperature humidity, biocompatibility, efficient interfacial ion/electron transport capabilities. Here, we innovatively integrate multifunctional carbon quantum dots (CQDs), which exhibit conductivity, antibacterial properties, ultraviolet absorption, fluorescence emission, with poly(acrylic acid) glycerin (Gly) into three-dimensional network structure natural goatskin collagen fibers. top-down strategy enhanced by hydrogen bond reconstruction, successfully fabricated novel transparent e-skin (PAC-eSkin). This exhibited significant tensile properties (4.94 MPa strength 263.42% maximum breaking elongation), while also possessing Young's modulus (2.32 MPa). It noteworthy that the functionalized CQDs used was derived from discarded goat hair, addition Gly gave PAC-eSkin excellent antifreezing moisturizing properties. Due presence ultrasmall CQDs, creates channels within PAC-eSkin, could rapidly sense motion physiological signals (with gauge factor (GF) 1.88). Furthermore, had potential replace traditional electrode patches real-time monitoring electrocardiogram, electromyogram, electrooculogram signals, higher SNR (signal-to-noise ratio) 25.1 dB. Additionally, customizable size shape offer vast possibilities construction single-electrode triboelectric nanogenerator systems. We have reason believe development this based on CQDs-functionalized dermal matrices can pave new way innovations in human–computer interfaces their sensing application diverse scenarios.

Language: Английский

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Zwitterionic Eutectogels with High Ionic Conductivity for Environmentally Tolerant and Self-Healing Triboelectric Nanogenerators

ACS Nano, Journal Year: 2024, Volume and Issue: 18(29), P. 18980 - 18991

Published: July 8, 2024

Eutectogels have garnered considerable attention for the development of wearable devices, owing to their inherent mechanical elasticity, ionic conductivity, affordability, and environmental compatibility. However, low conductivity existing eutectogels has impeded progression in electronic applications. Here, we report a zwitterionic eutectogel with an impressive up 15.7 mS cm–1. The incorporation groups into creates ample mobile charges by dissociating cation anion solvents, thereby yielding exceptional conductivity. Moreover, abundant electrostatic hydrogen bonding interactions within endow it prominent self-healing adhesive properties. By integrating roughly patterned polydimethylsiloxane film, successfully constructed triboelectric nanogenerator (TENG) maximum output power density 112 mW m–2. This TENG is capable generating stable electrical signals even extreme temperature conditions ranging from −80 100 °C effectively powering devices. Furthermore, assembled displays high sensitivity as self-powered sensor, enabling real-time precise monitoring derived human motions. study establishes promising approach sustainable multifunctional flexible electronics that are resilient environments.

Language: Английский

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Sea Cucumber‐Inspired Polyurethane Demonstrating Record‐Breaking Mechanical Properties in Room‐Temperature Self‐Healing Ionogels

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(44)

Published: Sept. 12, 2024

Abstract Practical applications of existing self‐healing ionogels are often hindered by the trade‐off between their mechanical robustness, ionic conductivity, and temperature requirements for ability. Herein, this challenge is addressed drawing inspiration from sea cucumber. A polyurethane containing multiple hydrogen‐bond donors acceptors synthesized used to fabricate room‐temperature with excellent properties, high puncture resistance, impact resistance. The hard segments polyurethane, driven hydrogen bonds, coalesce into phase regions, which can efficiently dissipate energy through reversible disruption reformation bonds. Consequently, resulting exhibit record‐high tensile strength toughness compared other ionogels. Furthermore, inherent reversibility bonds within regions allows spontaneously self‐heal damaged properties conductivity times at room temperature. To underscore application potential, these employed as electrolytes in fabrication electrochromic devices, stable performance, repeatable healing ability, satisfactory This study presents a novel strategy exceptional capability.

Language: Английский

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Solid-state ion-conductive elastomers with high mechanical robustness and ion-conductivity for highly durable triboelectric nanogenerators

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159502 - 159502

Published: Jan. 11, 2025

Language: Английский

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Recyclable multifunctional ion conductive elastomers for strain/temperature sensors and bioelectrodes

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 489, P. 151433 - 151433

Published: April 19, 2024

Language: Английский

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Recyclable and mechanically tough nanocellulose reinforced natural rubber composite conductive elastomers for flexible multifunctional sensor

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 268, P. 131946 - 131946

Published: April 29, 2024

Language: Английский

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An All-Solid-State fluorinated Ion-Conductive elastomer with outstanding mechanical properties and high environmental stability for flexible electronics

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159437 - 159437

Published: Jan. 1, 2025

Language: Английский

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Damping Supramolecular Elastomer for Steady Hypothermic Sensing

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

Published: Feb. 24, 2025

Abstract Flexible temperature sensors often use gels to achieve skin‐inspired softness, but the water evaporation and freezing of hydrogel leakage ionogel, cause unstable signal transmission inaccurate measurement at sub‐zero temperatures. Here steady hypothermic sensing is achieved by designing a supramolecular elastomer containing two types segments: liquid‐free iontronic segment transmit electrical charges prevent ion leakage, neutral with pendant chains damp vibration for stable transmission. The exhibits excellent tensile properties, adhesiveness, self‐healing, ionic conductivity A wireless system fabricated based on supermolecule elastomer, realizing accurate, steady, sensitive real‐time detection. Especially, sensor coefficient resistance (TCR) 8.87% °C −1 from −20 −15 °C, three five times higher than that most flexible sensors. There no significant difference in detected this an infrared thermal imaging camera. Such represents step toward highly accurate cold chain transportation beyond.

Language: Английский

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