Preparation method of environment-friendly self-healing conductive hydrogel

A conductive hydrogel, self-healing technology, applied in the direction of processing and manufacturing, manufacturing auxiliary devices, liquid material additive processing, etc., can solve the problems of complex preparation process, poor electrical conductivity, unsatisfactory self-healing effect, etc. Excellent one-dimensional nanostructure, excellent electrical conductivity, ideal self-healing effect

Pending Publication Date: 2020-06-26
东北大学秦皇岛分校
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a preparation method of an environment-friendly self-healing conductive hydrogel, which intends to solve the problems of poor electrical conductivity, complicated preparation process and unsatisfactory self-healing effect of the traditional conductive hydrogel at the present stage

Method used

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  • Preparation method of environment-friendly self-healing conductive hydrogel
  • Preparation method of environment-friendly self-healing conductive hydrogel
  • Preparation method of environment-friendly self-healing conductive hydrogel

Examples

Experimental program
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Embodiment 1

[0041] In this embodiment, the preparation method of environment-friendly self-healing conductive hydrogel comprises the following steps:

[0042] (1) Take a 100ml beaker, weigh 0.025g of sodium alginate at room temperature and add it to the beaker, add 20ml of deionized water into it, stir at a constant temperature in a water bath at 65°C for 2 hours, and record it as solution A;

[0043](2) Add 0.4 g of pyrrole monomer to the beaker of solution A in step (1), and ultrasonically disperse the resulting mixed solution in an ultrasonic instrument for 15 minutes, and record it as solution B;

[0044] (3) Take 3g of sodium dodecylbenzenesulfonate (SDBS) (mass ratio SDBS:MWCNTs=3:1) in deionized water, add 1g of multi-walled carbon nanotubes (MWCNTs) to it, and the resulting mixed solution is ultrasonically Ultrasonic dispersion in the instrument for 50 minutes to form solution C;

[0045] (4) Mix solution B in step (2) with solution C in step (3), and ultrasonically disperse the ...

Embodiment 2

[0055] The difference from Example 1 is: in step (3), sodium dodecylbenzenesulfonate (SDBS):multi-walled carbon nanotubes (MWCNTs)=2:1, and the others are the same as in Example 1.

Embodiment 3

[0057] The difference with Example 1 is: in step (9), get the FeCl of molar concentration 0.2mol / L 3 Aqueous solution 1.5ml, other are all the same as embodiment 1.

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Abstract

The invention belongs to the field of conductive hydrogel, and particularly relates to a preparation method of environment-friendly self-healing conductive hydrogel. The process of the method is as follows. Preparing a sodium alginate aqueous solution as a solution A; adding a pyrrole monomer to form a solution B; adding a mixed solution C of sodium dodecyl benzene sulfonate and a multi-walled carbon nanotube to the solution B to form a solution D; adding the mixed solution D to the glass conical tube fixed with the circular glass slide sheet; carrying out cross-linking printing on the eCl3 solution to obtain an environment-friendly self-healing conductive hydrogel three-dimensional structure sample. According to the invention, sodium alginate is used as a matrix, and carbon nanotubes andpolypyrrole are used as conductive materials. The environment-friendly self-healing conductive hydrogel is prepared by adopting a 3D printing preparation process. According to the invention, the problems of poor conductivity, complex preparation process and unsatisfactory self-healing effect of the traditional conductive hydrogel are solved.

Description

technical field [0001] The invention belongs to the field of conductive hydrogel, and relates to the synthesis and 3D printing molding process of an environment-friendly self-healing conductive hydrogel with sodium alginate as a matrix and carbon nanotubes and polypyrrole as conductive materials. Background technique [0002] Under the positive influence of the country's support policy for new materials, conductive hydrogels have many similarities with biological tissues in structure and properties, and at the same time have the controllability of electricity, mechanics, and biological functions, so they are among the conductive polymers. stand out from the rest of the material. Nowadays, with the development of science and technology of the times, conductive hydrogels have broad application space and development in emerging fields such as flexible electronics, biomedicine, self-healing conductive coatings, self-healing energy storage devices, and adhesives for electronic as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J3/075C08J3/24C08J7/00C08L79/04C08L5/04C08K3/04C08K5/42C08K3/16C08G73/06B29C64/106B29C64/386B33Y10/00B33Y40/20
CPCC08J3/075C08J3/246C08J7/00C08G73/0611B29C64/106B29C64/386B33Y10/00B33Y40/00C08J2379/04C08J2405/04C08K3/041C08K5/42C08K3/16C08K2201/011C08K2201/001
Inventor 侯安然王海旺贾凯旗李一凡黄谦傅渭杰彭涛袁毅
Owner 东北大学秦皇岛分校
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