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A kind of preparation method of conductive hydrogel based on one-dimensional nano polypyrrole

A technology of nano polypyrrole and conductive hydrogel, which is applied in the field of preparing conductive hydrogel, can solve the problems that conductive polymer hydrogel is difficult to have a weave structure, interfere with conductive polymer, etc., so as to avoid swelling and have strong applicability , the effect of simple operation

Active Publication Date: 2020-05-15
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this type of method overcomes the disadvantages of the aforementioned two types of methods to a certain extent, the dispersion polymerization system will interfere with the formation of conductive polymer self-assembled micro / nanostructures, and it is difficult to obtain conductive polymer hydrogels with micro / nanostructures by using this method. Nanoscale textured structures

Method used

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  • A kind of preparation method of conductive hydrogel based on one-dimensional nano polypyrrole
  • A kind of preparation method of conductive hydrogel based on one-dimensional nano polypyrrole
  • A kind of preparation method of conductive hydrogel based on one-dimensional nano polypyrrole

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Effect test

Embodiment 1

[0031] A preparation method based on one-dimensional nano polypyrrole conductive hydrogel, the steps of which are:

[0032] Step 1: According to parts by mass, add 0.1 parts of methyl orange to 50 parts of deionized water, apply ultrasonic waves to dissolve and disperse evenly, and then add 2 parts of pyrrole to the solution;

[0033] Step 2: take ferric chloride, the mol ratio of ferric chloride and pyrrole in step 1 is 1:1, ferric salt is dissolved in 50 parts of deionized water;

[0034]Step 3: quickly mix the solution obtained in step 1 and step 2, leave it at room temperature for 6h, depressurize the resulting product to 0.7atm, and filter with suction to obtain a filter cake, while washing and filtering with 0.2mol / L hydrochloric acid solution Cake until the filtrate is nearly colorless, and the filter cake is condensed to a porous sponge-like structure by pumping air to obtain a one-dimensional nano-polypyrrole;

[0035] Step 4: Under the condition of decompression and...

Embodiment 2

[0037] A preparation method based on one-dimensional nano polypyrrole conductive hydrogel, the steps of which are:

[0038] Step 1: According to parts by mass, add 0.2 parts of methyl orange to 50 parts of deionized water, apply ultrasonic waves to dissolve and disperse evenly, and then add 1.5 parts of pyrrole to the solution

[0039] Step 2: take ferric sulfate, the mol ratio of ferric sulfate and the pyrrole in step 1 is 2:1, ferric salt is dissolved in 50 parts of deionized water;

[0040] Step 3: quickly mix the solution obtained in step 1 and step 2, leave it at room temperature for 12h, depressurize the product obtained by 0.6atm, and filter with suction to obtain a filter cake, while washing and filtering with 0.2mol / L hydrochloric acid solution Cake until the filtrate is nearly colorless, and the filter cake is condensed to a porous sponge-like structure by pumping air to obtain a one-dimensional nano-polypyrrole;

[0041] Step 4: Under the condition of decompression...

Embodiment 3

[0043] A preparation method based on one-dimensional nano polypyrrole conductive hydrogel, the steps of which are:

[0044] Step 1: According to parts by mass, add 0.3 parts of Orange I to 50 parts of deionized water, apply ultrasonic waves to make it dissolve and disperse evenly, and then add 1.5 parts of pyrrole to this solution

[0045] Step 2: take ferric nitrate, the mol ratio of ferric nitrate salt and pyrrole in step 1 is 2:1, ferric salt is dissolved in 50 parts of deionized water;

[0046] Step 3: quickly mix the solution obtained in step 1 and step 2, leave it at room temperature for 24h, depressurize the product obtained by 0.5atm, and filter with suction to obtain a filter cake, while washing and filtering with 0.5mol / L hydrochloric acid solution Cake until the filtrate is nearly colorless, and the filter cake is condensed to a porous sponge-like structure by pumping air to obtain a one-dimensional nano-polypyrrole;

[0047] Step 4: Under the condition of decompre...

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Abstract

The invention discloses a preparation method of conductive hydrogel based on one-dimensional nano-polypyrrole. The preparation method includes the steps: adding structural guide components into deionized water, applying ultrasonic waves and adding pyrrole into the solution; weighing ferric iron salt and dissolving the ferric iron salt in the deionized water; rapidly and uniformly mixing the solution obtained in the first step and the third step, performing standing, decompression and suction filtration, leaching filter cakes by acid solution until filtrate is near colorless, and exhausting andcondensing the filter cakes into a porous sponge-like structure to obtain the one-dimensional nano-polypyrrole; taking, by weight, 1 part of one-dimensional nano-polypyrrole and 1-5 parts of polymersolution capable of forming physical cross-linking or polymer solution capable of forming chemical cross-linking, enabling corresponding cross-linking agents to permeate into the porous one-dimensional nano-polypyrrole, uniformly mixing the cross-linking agents and the one-dimensional nano-polypyrrole, filling a die with the mixture and performing a gelation process to obtain the conductive hydrogel based on the one-dimensional nano-polypyrrole. The preparation method has the advantages that the application advantages of low-priced conductive polymer can be sufficiently taken, and the preparation method is more suitable for large-scale popularization.

Description

technical field [0001] The invention belongs to the preparation of conductive hydrogel, in particular to a method for preparing conductive hydrogel based on one-dimensional nano polypyrrole. Background technique [0002] Conductive hydrogel has both good flexibility and conductivity, and can easily reflect information such as stress, strain, and temperature through changes in electrical signals. It is a multifunctional material that is expected to be used in artificial intelligence, wearable devices, and energy storage devices. Flexible electronic materials. Electrolyte salts, nanocarbon materials, and conductive polymers can all be used to construct conductive hydrogels. Compared with electrolyte salts, conductive polymers have the dual characteristics of electronic conductors and ion conductors, and their conductivity is more prominent; compared with nanocarbon materials such as graphene and carbon nanotubes, conductive polymers are easy to synthesize and can be modified....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/04C08L29/04C08L33/26C08L33/02C08G73/06C08J3/075C08J3/24
Inventor 李瑜井新利谢鹏飞蒋在航郑元锁
Owner XI AN JIAOTONG UNIV
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