Template method for dual network self-healing hydrogel with conductive property

Kang, Mengmeng; Liu, Shunli; Yao, Fang; Zhang, Zhihong

doi:10.1016/j.matdes.2018.03.047

Cited by 59 publications

(37 citation statements)

References 51 publications

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“…The peak at 401.1 eV is corresponding to NH 3 + . [ 48 ] In Figure S4 in the Supporting Information, Fourier transform infrared spectrometer (FT‐IR) was introduced to investigate the inner structure of SFHs. The peak in SFH 0% spectrum at 1650 cm −1 is contributed to amide I band produced by the carbonyl stretching vibration.…”

Section: Resultsmentioning

confidence: 99%

Highly Stretchable, Adhesive, and Self‐Healing Silk Fibroin‐Dopted Hydrogels for Wearable Sensors

Zhao

Zhang

et al. 2021

Adv Healthcare Materials

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In recent years, the preparations of flexible electronic devices have attracted great attention. Here, a simple one-pot method of thermal polymerization is introduced to fabricate silk fibroin-dopted hydrogels (SFHs), which are both chemically and physically cross-linked by acrylamide (AM), acrylic acid (AA), and silk fibroin (SF). The addition of SF can effectively enhance the mechanical property of the SFH 12% by 59% compared with SFH 0% . Taking the advantage of its wide working range of stress (about 0.455-568.9 kPa), the SFH can work as a resistance-type pressure sensor to monitor different human motions. What is more, the excellent adhesion, about 75.17 N m −1 of SFH 46% enables it to fit tightly to other objects during the testing, which significantly reduces the loss of small signals due to poor fit. In addition, the SFH demonstrates excellent self-healing property without requiring external excitation and a sensitive temperature response in the range of −10 to 60°C. The SFH is expected to be applied in the field of electronic skin, soft robots, and other flexible electronic products as well as speech recognition.

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Section: Resultsmentioning

confidence: 99%

Highly Stretchable, Adhesive, and Self‐Healing Silk Fibroin‐Dopted Hydrogels for Wearable Sensors

Zhao

Zhang

et al. 2021

Adv Healthcare Materials

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“…After the PVA solution was mixed with the CNDs, many PVA chains were adsorbed on the surface of the CNDs due to the strong hydrogen bonding, which was beneficial to the formation of the PVA tight network and improved the mechanical properties of the PVA‐CNDs hydrogel. And the CNDs also acted as a lubricant, thereby increasing the ductility of the PVA‐CNDs hydrogel . As shown in Figure , when the content of CNDs was 7.5% (PVA‐CNDs(III)), the compressive strength and ductility decreased.…”

Section: Resultsmentioning

confidence: 97%

Poly(vinyl alcohol)–Carbon Nanodots Fluorescent Hydrogel with Superior Mechanical Properties and Sensitive to Detection of Iron(III) Ions

Shao

Wang

et al. 2019

Macro Materials & Eng

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A high‐strength fluorescent hydrogel is prepared by physical cross‐linking of carbon nanodots (CNDs) with poly(vinyl alcohol) (PVA). The stretching and compression of the PVA hydrogel are improved with CNDs by 176% and 64%, respectively. It still has excellent self‐healing behaviors without adding other healing agents. In addition, the search for rapid detection of heavy metals is still a huge challenge. The resulting hydrogel exhibits fluorescence quenching in the presence of Fe3+ by the fluorescence characteristics of CNDs, which has high selectivity and sensitivity. The PVA‐CNDs fluorescent hydrogel can be used as a solid detection platform for Fe3+, where the detection limit is found to be 10 µm for Fe3+ by fluorescence studies.

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“…Inherent brittleness and faultiness of polymeric composites make them apt to form microcracks, propagating to failure 2 . Recently, smart materials [3][4][5] inspired from the biological systems were developed to repair inside damage whenever and wherever it occurs during the lifetime of polymeric composites, which would provide a method to significantly extend the service life and reliability of polymeric structural composites [6][7][8][9][10][11] . To realize this purpose, a series of strategies have been exploited such as embedded healing microcapsule and its curing agent 12,13 , embedded dual-microcapsule including healing agent and hardener [14][15][16] , embedded vascular network containing healing agent [17][18][19][20][21] , and so on [22][23][24] .…”

Section: Microencapsulation Of Tris(dimethylaminomethyl) Phenol Usingmentioning

confidence: 99%

Microencapsulation of tris(dimethylaminomethyl)phenol using polystyrene shell for self-healing materials

Zhang²,

Zhang

et al. 2020

Sci Rep

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The self-healing function of the polymer material has been realized by the microencapsulation technology of the healing agent. A novel microcapsule contained tris(dimethylaminomethyl)phenol (DMP-30) with polystyrene as shell material was prepared via solvent evaporation technique in a W/O/W emulsion. Two key strategies were implemented to prepare the microcapsules successfully. First, a small amount of deionized water was added into DMP-30 to form a complex, and a stable W/O emulsion was successfully prepared. The second one is to form a stable W/O/W emulsion system with the high viscosity aqueous solution added with Arabia gum and surfactants as the third phase. In addition, the influencing factors of microcapsules preparation were investigated systematically. The chemical structure of DMP-30 microcapsule was investigated by Fourier transform infrared. The morphology and shell thickness of the microcapsules were observed by optical microscope and scanning electron microscope. The reactivity of the core material was studied by differential scanning calorimetry. The thermal properties of microcapsules were studied by thermogravimetric analysis. The environmental resistance of microcapsules was verified by the isothermal aging test. Results showed that DMP-30 was successfully coated by polystyrene and the microcapsule size was in the range of 2–40 μm. The synthesized microcapsules were thermally stable below 50 °C.

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Template method for dual network self-healing hydrogel with conductive property

Cited by 59 publications

References 51 publications

Highly Stretchable, Adhesive, and Self‐Healing Silk Fibroin‐Dopted Hydrogels for Wearable Sensors

Highly Stretchable, Adhesive, and Self‐Healing Silk Fibroin‐Dopted Hydrogels for Wearable Sensors

Poly(vinyl alcohol)–Carbon Nanodots Fluorescent Hydrogel with Superior Mechanical Properties and Sensitive to Detection of Iron(III) Ions

Microencapsulation of tris(dimethylaminomethyl)phenol using polystyrene shell for self-healing materials

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