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Conductive hydrogel as well as preparation method and application thereof

A conductive hydrogel and material technology, which is applied in the field of conductive hydrogel and its preparation, can solve the problems that cannot meet the actual situation and the performance of conductive hydrogel is single, and achieve the problem of shortening the unevenness of crosslinking and shortening the crosslinking The time, the effect of improving the mechanical strength

Pending Publication Date: 2022-06-28
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] According to one aspect of the present application, a conductive hydrogel and its preparation method and application are provided, the multifunctional conductive ionic hydrogel has good stretchability, plasticity, adhesion, conductivity, and light transmittance , which solves the problem that the common conductive hydrogel has a single performance and cannot meet the actual situation

Method used

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  • Conductive hydrogel as well as preparation method and application thereof
  • Conductive hydrogel as well as preparation method and application thereof
  • Conductive hydrogel as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Example 1 Investigating the influence of different monomer ratios on the gelation and properties of hydrogels

[0063] 1. The monomer ratio is 1:1

[0064] At room temperature, weigh 0.9411g 1-vinylimidazole, 1.0808g sodium methacrylate, 210μL polyethylene glycol diacrylate (about 0.2% of the total monomer molar), 5.5μL 2-hydroxy-2- Methyl-1-phenylacetone (about 0.2% of the total monomer mole), 0.07g of zinc chloride hexahydrate, placed in a clean 50ml beaker, added 10ml of distilled water and placed on a magnetic workbench at 800r / min stirring speed for 25min. The above solution after being mixed evenly was injected into two 10*10cm glass splints with a 5mL syringe, and the thickness between the glass plates was 0.1cm. After the solution was injected, the small air bubbles in the glass plate were evacuated, and then the glass plate was placed in a UV curing oven with a wavelength of 365 nm for 35 minutes. After the temperature of the glass plate was cooled to room t...

Embodiment 2

[0071] Example 2 Investigate the influence of different metal ions on the gelation and properties of hydrogels

[0072] The specific experimental process is basically the same as the preparation method of sample D4, the difference is that different types of metal ions of the same concentration are changed. The specific conditions are shown in Table 1. The obtained conductive hydrogels corresponding to metal coordination are recorded as samples J1-J3.

Embodiment 3

[0073] Example 3 Investigate the influence of different concentrations of metal ions on the gelation and properties of hydrogels

[0074] The specific experimental process is basically the same as the preparation method of sample D1, the difference is that different types of metal ions with different concentrations are changed. The specific conditions are shown in Table 1. The obtained conductive hydrogel corresponding to the metal coordination is recorded as the sample N1-N4 (nickel ions), Z1-Z4 (zinc ions).

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Abstract

The invention discloses conductive hydrogel as well as a preparation method and application thereof. The conductive hydrogel is formed by polymerizing an acrylic acid substance and an alkenyl imidazole substance, the conductive hydrogel comprises metal coordination ions. According to the preparation method, a one-step method is adopted, the hydrogel is endowed with multiple properties such as adhesion, conductivity and light transmission by utilizing the ion coordination effect of the acrylic acid substances and the alkenyl imidazole substances with metal ions, and the preparation method is simple and convenient. The photoinitiator is used as an inducer, so that the crosslinking time can be shortened, and the problem of non-uniform crosslinking can be solved. The obtained conductive hydrogel has good stretchability, plasticity, adhesion, conductivity and light transmission, and has a wide application prospect.

Description

technical field [0001] The present application relates to a conductive hydrogel, a preparation method and application thereof, and belongs to the technical field of hydrogel. Background technique [0002] Hydrogel is a gel whose dispersion medium is water. Hydrogel is scientifically defined as a polymer with a three-dimensional network structure formed by chemical cross-linking or physical cross-linking of hydrophilic polymer chains. polymer. Hydrogels can absorb water and swell without dissolving, and have good mechanical properties and biocompatibility. In view of the unique structure and properties of hydrogels, researchers have attracted extensive attention. [0003] Metal-coordination hydrogels have excellent properties, including toughness, self-healing, and adhesion, and have broad application prospects in electronic skin, biomedical sensors, soft robotics, and more. But achieving ideal adhesion between hydrogels and most surfaces remains a challenge. For example, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/42C08F283/06C08F226/06C08F220/06C08F2/48A61K9/00A61K9/06A61K9/70A61K47/02A61K47/32A61L24/00A61L24/06
CPCC08F8/42C08F2/48A61L24/06A61L24/0031A61K9/06A61K47/32A61K47/02A61K9/7061A61K9/7038A61K9/0014A61L2400/04C08F283/065C08F226/06C08F220/06C08L51/08
Inventor 郭帅均周扬仇晓阳梁寅秋王欣雨
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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