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High-toughness conductive nano composite ionic gel and preparation method thereof

A technology of conductive nano-composite ions, which is applied in the field of high-toughness conductive nano-composite ion gels and its preparation, can solve the problems of ion gel extensibility and low conductivity, which cannot meet practical applications and are not suitable for large-scale production. Achieve the effects of moderate interaction, improved conductivity and improved elongation

Pending Publication Date: 2021-07-30
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The extensibility and conductivity of the ion gel prepared by the above-mentioned methods related to documents 1 and 3 are low. Although the conductivity of the ion gel prepared by the method related to document 2 is greatly improved, its elongation is low. The method prepared by the related method of document 4 Although the elongation rate of the ionic gel is greatly improved, its conductivity is low, which cannot meet the needs of practical applications. At the same time, the above-mentioned methods usually require special molecular structure design or cumbersome preparation processes, and are not suitable for large-scale production.

Method used

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  • High-toughness conductive nano composite ionic gel and preparation method thereof
  • High-toughness conductive nano composite ionic gel and preparation method thereof
  • High-toughness conductive nano composite ionic gel and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Take 5 ml of nano-TiO with an average particle size of 10 nm and a mass concentration of 10% 2 The sol and 35 ml of ionic liquid 1-methyl-3-butylimidazolium hexafluorophosphate were added to a round bottom flask, and magnetically stirred for 30 min to obtain uniform nano-TiO 2 Dispersions. Add 0.02 mol acrylamide and 0.02 mol N-isopropylacrylamide to the above dispersion, stir for 40 minutes under the condition of helium, add 0.1 g initiator ammonium persulfate, 25 mg catalyst N, N, N' , N'-tetramethylethylenediamine, after stirring evenly, transferred to molds of different shapes, sealed, and free radical polymerization at 80°C for 4 hours. After the polymerization, the samples were taken out, placed in vacuum drying at 80°C and dried for 6 hours to constant weight to obtain spherical samples and strip samples of conductive nanocomposite ion gels with high toughness, wherein the spherical samples had a diameter of 2 cm. The strip sample has a length of 10 cm and a d...

Embodiment 2

[0068] Take 10 ml of nano-TiO with an average particle size of 15 nm and a mass concentration of 10% 2 The sol and 40 ml of ionic liquid 1-methyl-3-butylimidazolium tetrafluoroborate were added to a round bottom flask, and magnetically stirred for 30 min to obtain uniform nano-TiO 2 Dispersions. Add 0.01 mol acrylic acid and 0.04 mol N, N-dimethylacrylamide to the above dispersion, stir for 30 minutes under the condition of blowing nitrogen, add 0.15 g initiator potassium persulfate, 20 mg catalyst N, N, N', N'-tetramethylethylenediamine, after being stirred evenly, was transferred into molds of different shapes, sealed, and subjected to radical polymerization at 60° C. for 8 hours. After the polymerization, the samples were taken out, placed in vacuum drying at 80°C and dried for 4 hours to constant weight to obtain spherical samples and strip samples of conductive nanocomposite ion gels with high toughness, wherein the spherical samples had a diameter of 2 cm. The diamete...

Embodiment 3

[0071] Take 15 ml of nano-TiO with an average particle size of 20 nm and a mass concentration of 15 % 2 Add the sol and 25 ml ionic liquid 1-ethyl-3-methylimidazolium acetate into a round-bottomed flask, and mix with magnetic stirring for 30 min to obtain uniform nano-TiO 2 Dispersions. Add 0.04 mol acrylic acid and 0.08 mol 2-hydroxyethyl acrylate to the above dispersion, stir for 60 minutes under the condition of nitrogen, add 0.58 g initiator sodium persulfate, 60 mg catalyst N, N, N', N '-Tetramethylethylenediamine, after being evenly stirred, transferred to molds of different shapes, sealed, and radically polymerized at 40°C for 12 hours. After the polymerization, the samples were taken out, placed in vacuum drying at 80°C for 5 hours to constant weight, and spherical samples and strip samples of conductive nanocomposite ion gels with high toughness were obtained, wherein the spherical samples had a diameter of 2 cm. The strip sample has a length of 10 cm and a diamete...

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Abstract

The invention provides a high-toughness conductive nano-composite ionic gel and a preparation method thereof. On the basis of ensuring the toughness of a product, the product has relatively good conductivity and extensibility and excellent comprehensive performance, and the preparation process is simple and suitable for large-scale production. The high-toughness conductive nano-composite ionic gel is characterized in that preparation raw materials of the high-toughness conductive nano-composite ionic gel comprise nano titanium dioxide hydrosol, ionic liquid and monomers, the volume ratio of the ionic liquid to the nano titanium dioxide hydrosol is (1-8):1, and after all the components of the raw materials are mixed, the molar concentration of the monomers is 0.5-3 M; the particle size of nano titanium dioxide in the nano titanium dioxide hydrosol is 5-30 nm, and the mass concentration of the nano titanium dioxide in the nano titanium dioxide hydrosol is 10%-15%; and the monomer is an acrylic acid, acrylate or acrylamide monomer.

Description

technical field [0001] The invention relates to the field of flexible electronic materials, in particular to a high-toughness conductive nanocomposite ion gel and a preparation method thereof. Background technique [0002] In recent years, with the development of science and technology and the improvement of people's living needs, various wearable and flexible electronic devices have developed rapidly. However, traditional conductive materials represented by metals have high modulus and poor extensibility, which cannot meet the requirements of flexible electronic devices. Therefore, there is an urgent need to develop flexible conductive materials with excellent flexibility and ductility to meet the development needs of current wearable electronic devices. [0003] The gel material is a soft material composed of a cross-linked polymer network and various liquids dispersed in it. It has excellent properties such as good flexibility and low modulus. This kind of conductive co...

Claims

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Application Information

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IPC IPC(8): C08F220/56C08F220/54C08F220/06C08F220/20C08F220/58C08F220/28C08F2/44C08K3/22C08K5/3445C08K5/43
CPCC08F220/56C08F220/54C08F220/20C08F220/58C08F220/281C08F2/44C08K3/22C08K5/3445C08K5/43C08K2003/2241C08K2201/011C08K2201/001
Inventor 许波王平袁久刚徐进余圆圆
Owner JIANGNAN UNIV
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