Room temperature self-healing and recyclable conductive composites for flexible electronic devices based on imine reversible covalent bond

Min, Jinbiao; Zhou, Zhaoxi; Wang, Hainan; Chen, Qihui; Hong, Maochun; Fu, Heqing

doi:10.1016/j.jallcom.2021.162433

Cited by 23 publications

(10 citation statements)

References 52 publications

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“…Nature has inspired scientists to develop synthetic materials that restore and recover their properties after mechanical and functional damage. Nowadays, the benefit of self-healing materials is no longer limited to mechanical performance but has gradually expanded to other functional properties such as electrical conductivity. , With the development of modern electronics techniques, materials that exhibit both self-healing and conductive properties can be expected to offer extended lifetimes in embedded electronics in smart devices such as smart wearables for performance and health monitoring, photovoltaics, and soft robotics . An example is self-healing resistive strain sensors that recover their sensor behavior after multiple damage-healing cycles .…”

Section: Introductionmentioning

confidence: 99%

Effect of Secondary Particles on Self-Healing and Electromechanical Properties of Polymer Composites Based on Carbon Black and a Diels–Alder Network

Sahraeeazartamar,

Terryn,

Roels

et al. 2023

ACS Appl. Polym. Mater.

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The addition of an organomodified nanoclay to a carbon-based electrically conductive self-healing composite showed a synergistic improvement of the electrical conductivity and self-healing ability of the formed hybrid composites. The effect on the electrical, viscoelastic, and self-healing properties was studied for Diels−Alder-based reversible polymer networks with a maleimide-to-furan stoichiometric ratio of 0.6, with different loadings of carbon black Ensaco 360G and nanoclay Cloisite 15A. Hybrid composites were prepared with carbon black contents from 5 to 15 wt % and nanoclay loading up to 1.5 wt %. The percolating network of conductive particles led to decent electrical conductivity of the order of 0.46 S m −1 at carbon black loadings of 7.5 wt % and higher. The increase in electrical conductivity was most pronounced at the lowest carbon black loadings, while the improvement of the self-healing properties was most pronounced just above the percolation threshold. The resulting structure−property relations enabled optimization of the filler composition to achieve the best combination of electrical and self-healing properties by exploiting the synergistic effect of the secondary filler. Finally, the electromechanical properties of selected hybrid composites with the best combinations of the two fillers were studied for sensor applications. Self-healing strain sensors showed distinct responses depending on the combination of fillers with decent recovery after the damage-healing process. These promising results suggest the use of the studied electrically conductive and self-healing hybrid composites for deformation and damage-sensing applications in flexible electronics and soft robotics.

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Section: Introductionmentioning

confidence: 99%

Effect of Secondary Particles on Self-Healing and Electromechanical Properties of Polymer Composites Based on Carbon Black and a Diels–Alder Network

Sahraeeazartamar,

Terryn,

Roels

et al. 2023

ACS Appl. Polym. Mater.

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“…Compared with externally assisted self-healing materials represented by microcapsules, [5][6][7] internal selfhealing materials containing dynamic reversible bonds can repeatedly recover their chemical or physical bonds under certain external stimuli, so they have been widely studied in recent years. 8,9 Compared with thermal 10 and pH 11 stimuli, light is economical, simple, non-destructive, remote control and fast switching. Photo-induced reversible reaction is a good choice for preparing of self-healing polymer materials.…”

Section: Introductionmentioning

confidence: 99%

Photo‐responsive cellulose nanocrystal modified fluorinated polyacrylate based on coumarin chemistry

Zhou

Liu

Wang

2023

J of Applied Polymer Sci

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Photo‐responsive cellulose nanocrystal modified fluorinated polyacrylate was synthesized by environmentally friendly RAFT‐mediated Pickering emulsion polymerization using amphiphilic block copolymer modified cellulose nanocrystal poly(acrylic acid)‐g‐CNC‐g‐poly (hexafluorobutyl acrylate‐co‐7‐(2‐methacryloyloxyethoxy)‐4‐methylcoumarin) PAA‐g‐CNC‐g‐P (HFBA‐co‐CMA) (MCNC) as a stabilizer, and the photo‐responsive coumarin groups were introduced to endow it with self‐healing function. This paper mainly studied the effect of MCNC dosage on emulsion polymerization and latex film properties. The latex particle size and its distribution decreased as the MCNC dosage increased from 0.4 wt% to 1.0 wt%, and then increased afterwards. The mechanical property and thermal stability of latex films could be significantly improved by introducing MCNC. And the surface scratches of latex films with MCNC exceeding 0.4 wt% could be completely repaired after 7 h UV irradiation. Furthermore, the photo‐responsive cellulose nanocrystal modified fluorinated polyacrylate emulsion was applied to fabric finishing by dip‐rolling treatment. And the finished fabric had good hydrophobicity, oleophobicity and surface repair performance.

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“…The material is damaged in the process of use, which greatly affects the use of the material and can easily lead to safety accidents. Materials with self-healing properties will recover mechanical properties after being damaged by external forces, extending the service life and safety of materials and reducing the use of raw materials. − Self-healing properties of materials are achieved through reversible physical or chemical interactions, such as hydrogen bonding, electrostatic interactions, molecular chain movement, Diels–Alder reaction, imine bond, , and disulfide bonds . By combination of the conductive material with the self-healing mechanism, the mechanical and conductive properties of the conductive material are restored.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of Polyaniline Self-Healing Conductive Materials Based on Hydrogen Bonding and Electrostatic Interaction Forces

Wang,

et al. 2023

ACS Appl. Polym. Mater.

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Self-healing conductivity of materials is a very attractive property, but preparing a simple green conductive material is still a challenge. In this article, a self-healing conductive material was prepared by using polyaniline as a conductive substance with oxidized nanocellulose and polyacrylamide. When the oxidized nanocellulose and polyaniline are 1:1, the fracture stress of the material can reach 1.62 MPa (≈400%). Meanwhile, the material has a certain self-healing effect due to the presence of hydrogen bonding and electrostatic interaction forces. After 48 h of self-healing at room temperature, the maximum stress reached 0.83 MPa. The electrical conductivity can reach 47.22 μS/cm, and the self-healing efficiency of the material can reach >90% after 1 h at room temperature. This material is prepared by a solution casting process, which allows the material to be prepared in large areas.

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Room temperature self-healing and recyclable conductive composites for flexible electronic devices based on imine reversible covalent bond

Cited by 23 publications

References 52 publications

Effect of Secondary Particles on Self-Healing and Electromechanical Properties of Polymer Composites Based on Carbon Black and a Diels–Alder Network

Effect of Secondary Particles on Self-Healing and Electromechanical Properties of Polymer Composites Based on Carbon Black and a Diels–Alder Network

Photo‐responsive cellulose nanocrystal modified fluorinated polyacrylate based on coumarin chemistry

Preparation and Properties of Polyaniline Self-Healing Conductive Materials Based on Hydrogen Bonding and Electrostatic Interaction Forces

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