Bioinspired Liquid‐Free Ion‐Conductive Elastomers with Ultrahigh Mechanical Strength and Excellent Ionic Conductivity for Multifunctional Flexible Sensing Applications

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Abstract Liquid‐free ion‐conductive elastomers with excellent mechanical and electrical conductivity are widely used in flexible sensors, wearable devices, soft touch screens, supercapacitors. However, the inherent contradiction between properties often limits development of liquid‐free elastomers. Therefore, preparation both high ionic remains a major challenge. In this study, polyurethane elastomer multiple crosslinking microphase‐separated structures were designed, inspired by “brick wall” structure pearl layer. A polyurethane‐based strength outstanding ion‐conducting was prepared introducing lithium bis(trifluoromethane)sulfoximide (LiTFSI) into elastomer. FLICE‐110% had (5.46 MPa), exceptional elongation at break (1213%), (3.29 × 10 −4 S cm −1 ), fracture energy (6.25 kJ m −2 ). Flexible sensors based on have realized applications multi‐channel strain remote‐controlled robots. addition, we successfully recovered LiTFSI from The these will be expected to show wide range skin, robotics, human‐machine interactions.

Language: Английский

Diatomaceous Earth and Carbon Nanotubes Toughened Advanced Rubber Composite for Triboelectric Nanogenerator and Sensor Applications

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: May 22, 2025

ABSTRACT This research proposes a composite‐type stretchable triboelectric nanogenerator combining diatomaceous earth (DE), conducting carbon nanotubes (CNT), and styrene‐butadiene rubber (SBR) matrix for small‐scale energy generation sensor applications. To enhance the mechanical harvesting efficiencies of composites, grape seed oil (GSO) was used as an in situ filler modifier. Mechanical assessments indicate that DE GSO, suitable quantities, can improve certain useful properties, such fracture strain, toughness, Young's modulus, compared to unfilled SBR compound. However, presence stronger reinforcing CNT significantly both electrical properties composites. Triboelectric energy‐generating behaviors composites suggest CNT‐based hybrid fillers efficiencies. At optimum concentration 40 phr (per 100 g rubber) DE, 10 2 composite, best toughness value (10.04 MJ/m 3 ) observed due improved filler‐rubber adhesion. The composite also showed robust efficiencies, with power efficiency, density, charge density values 0.6 nW/N, 6.25 mW/m , ~0.9 nC/N, 8.96 mC/m respectively, at 2% compressive strain. demonstrated better durability over 5000 cycles without any loss efficiency. tested sensing biomechanically stimulating patterns, writing on it, excellent similarity repetition. Additionally, simple pat sheet (6 × 5 0.1 cm generate high‐power 0.8 W/m .

Language: Английский

Ionic Conductive Elastomers with Enhanced Mechanical Properties and Applications in Triboelectric Nanogenerators

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

Published: May 26, 2025

Language: Английский