Highly transparent, self-healing and adhesive wearable ionogel as strain and temperature sensor

Tie, Jianfei; Mao, Zhiping; Zhang, Linping; Zhong, Yi; Sui, Xiaofeng; Xu, Hong

doi:10.1039/d2py00594h

Cited by 11 publications

(10 citation statements)

References 52 publications

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“…It exhibits thermosetting properties at low temperatures and thermoplastic properties at high temperatures. [ 52 ] These results suggest that the elastomer can be dissolved in the solvent for recycling purposes within a specific time frame after heating.…”

Section: Resultsmentioning

confidence: 95%

Tannic Acid Crosslinked Self‐Healing and Reprocessable Silicone Elastomers with Improved Antibacterial and Flame Retardant Properties

Jiao

Rong

Gao

et al. 2022

Macromol. Rapid Commun.

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Silicone elastomers are widely used in aviation, electronics, automotive, and medical device fields, and their overuse inevitably causes recycled problems. In addition, the elastomers are subject to attack by bacteria and fire during use in some application scenarios, which is a safety hazard. Therefore, there is a great need to prepare silicone elastomers with improved antibacterial, flame retardant, self-healing, and recyclable functions. A new strategy is proposed to prepare silicone elastomers with bio-based tannic acid as cross-linkers to solve this problem by using polydimethylsiloxane as a soft chain segment and 2,2-bis(hydroxymethyl)propionic acid as an intermediate chain extender. Based on the phenol carbamate bonding and hydrogen bonding interactions, the elastomer has efficient self-healing ability and can achieve dynamic dissociation at 120 °C for complete recovery. In addition, due to the unique spatial structure and polyphenolic hydroxyl groups of tannic acid, the mechanical properties of the elastomer are greatly improved with an antimicrobial efficiency of over 90% and a final oxygen index of 25.5%. The multifunctional silicone elastomer has great potential applications in recyclable refractory materials and antimicrobial materials.

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Section: Resultsmentioning

confidence: 95%

Tannic Acid Crosslinked Self‐Healing and Reprocessable Silicone Elastomers with Improved Antibacterial and Flame Retardant Properties

Jiao

Rong

Gao

et al. 2022

Macromol. Rapid Commun.

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“…However, IG 0.825 -AL 0.26% -Zn 18% is still irreplaceable because its ionic conductivity is higher than that of other types of tough materials. Compared with the representative piezoresistive ionogel pressure sensors reported in recent years, [39][40][41][42][49][50][51][52][53] the sensitivity of 33.8 kPa −1 for the bilayer ionogel lm belongs to the ultra-sensitive pressure sensor (Fig. S24 †).…”

Section: Applications In Pressure Sensors and Temperature Sensorsmentioning

confidence: 97%

An ultra-tough and ultra-sensitive ionogel pressure/temperature sensor enabled by hierarchical design of both materials and devices

et al. 2023

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“…Therefore, the ability of ionogels to exhibit predictable and reliable thermal properties made them promising materials for use in a wide range of temperature sensing applications. Compared with ionogel-based sensors with a relatively low solid content reported in recent years (Figure 6h), [11,[43][44][45][46][47][48][49][50][51] the resulting I-3% exhibited excellent mechanical and applied performance in fracture strength, stretchability, reconstruction, and high GF among the ionogels.…”

Section: Application Of Cosolvent Ionogelmentioning

confidence: 98%

Strong and Ultratough Ionogel Enabled by Ingenious Combined Ionic Liquids Induced Microphase Separation

Tie,

Mao,

Zhang

et al. 2023

Adv Funct Materials

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Ionogels have become a popular material in flexible electronics and soft robotics based on their excellent ionic conductivity, environmental tolerance, and electrochemical stability. However, it remains a challenge to develop an ionogel integrated with high strength, toughness, self‐healing, and adhesion. Herein, a novel strategy is established to design a high‐strength (0.97 MPa) and tensile (980%), excellent crack insensitivity, self‐healing ionogel based on the cosolvent method. By virtue of differential interactions between the specific polymer and various ionic liquids with gradient polarity, cosolvent systems are employed to achieve high‐performance ionogels by a simple one‐step polymerization. Gel permeation chromatography, atomic force microscopy, time‐domain nuclear magnetism, and density functional theoretical calculation are used to analyze the reasons. Microphase separation can be induced by hydrone or stretching to enhance strength of the ionogel. Therefore, ionogels can be assembled as strain and temperature sensors to monitor human movement and person's body temperature with a low detection threshold (0.1 °C) in extreme environments. This concept creates a new path to achieve soft materials with high performance, and provide a prospective strategy to regulate the in situ microphase change and performance of the resulting ionogel via the one‐step polymerization.

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Highly transparent, self-healing and adhesive wearable ionogel as strain and temperature sensor

Abstract: Wearable strain, pressure, and temperature sensors possess tremendous potential applications in human motion detection and personal healthcare monitoring. However, it is knotty to design a flexible and wearable sensor which...

Cited by 11 publications

References 52 publications

Tannic Acid Crosslinked Self‐Healing and Reprocessable Silicone Elastomers with Improved Antibacterial and Flame Retardant Properties

Tannic Acid Crosslinked Self‐Healing and Reprocessable Silicone Elastomers with Improved Antibacterial and Flame Retardant Properties

An ultra-tough and ultra-sensitive ionogel pressure/temperature sensor enabled by hierarchical design of both materials and devices

Strong and Ultratough Ionogel Enabled by Ingenious Combined Ionic Liquids Induced Microphase Separation

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