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Carbon nanotube/polypyrrole nanotube composite electronic ink and preparation method thereof

A technology of polypyrrole nanotubes and carbon nanotubes, which can be used in inks, household utensils, applications, etc. It can solve the problems of unsatisfactory conductivity, unsuitable for large-scale production, and poor washing resistance, so as to enhance the binding force and increase water resistance. Excellent performance, durability and electrical conductivity

Active Publication Date: 2019-04-16
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The Chinese invention patent authorization number is CN 104059432 B, the publication date is 2016.01.06, the name is transparent carbon nanotube polymer composite conductive ink and its preparation method, and a preparation method of electronic ink is provided. This electronic ink has the characteristics of transparency , can be applied to transparent electrode materials, but the price of the conductive polymer poly-3,4-ethylenedioxythiophene (PEDOT) used in this patent is relatively high, it is not suitable for large-scale production and the effect of washing resistance is relatively poor, and the conductivity is not ideal

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0045] a. Preparation of polypyrrole nanotubes

[0046] Stir and dissolve 3.27 parts of methyl orange in 1000 parts of deionized water at 30°C, keep the temperature and drop into 1000 parts of deionized aqueous solution containing 135.15-202.73 parts of ferric chloride hexahydrate, drop in 20-30min After completion, an orange flocculent precipitate was produced, and then frozen at -10°C for 2-4h. Pour 1000 parts of cyclohexane solution containing 33.5-67 parts of pyrrole monomer pre-cooled to 5°C-10°C into the above container, and then stand at -10-5°C for 24h. After the sample was thawed, it was washed with ethanol and deionized water several times to remove the residual methyl orange, and then the black powder was obtained by suction filtration and dried at 60°C for 24 hours for later use.

[0047] b. Preparation of polypyrrole nanotube dispersion

[0048] Disperse 1.2-4.8 parts of bacterial cellulose with a high-speed mixer (5000rpm / min) for 60-120min to 40 parts of 1-met...

Embodiment 1

[0059] a. Preparation of polypyrrole nanotubes

[0060] Stir and dissolve 3.27 parts of methyl orange in 1000 parts of deionized water at 30°C, keep the temperature and drop into 1000 parts of deionized aqueous solution containing 135.15 parts of ferric chloride hexahydrate, and drop it in 20 minutes to produce orange flocculent Precipitate, then freeze at -10°C for 3h. Pour 1000 parts of cyclohexane solution pre-cooled to 10°C containing 67 parts of pyrrole monomer into the above container, then stand at -10°C for 24 hours, thaw the sample and wash it with ethanol and deionized water several times to remove residual Methyl orange, and then suction filtered to obtain a black powder, which was dried at 60°C for 24 hours and set aside.

[0061] b. Preparation of polypyrrole nanotube dispersion

[0062] 1.2 parts of bacterial cellulose were dispersed in 40 parts of 1-methyl-2-pyrrolidone with a high-speed mixer (5000 rpm / min) for 60 minutes, and then 0.8 parts of polypyrrole na...

Embodiment 2

[0068] a. Preparation of polypyrrole nanotubes

[0069] Stir and dissolve 3.27 parts of methyl orange in 1000 parts of deionized water at 30°C, keep the temperature and drop into 1000 parts of deionized aqueous solution containing 202.73 parts of ferric chloride hexahydrate, and drop it in 30 minutes to produce orange flocculent Precipitate, then freeze at -10°C for 3h. Pour 1000 parts of cyclohexane solution pre-cooled to 10°C containing 33.5 parts of pyrrole monomer into the above container, then let it stand at 5°C for 24 hours, thaw the sample and wash it with ethanol and deionized water several times to remove residual formazan base orange, and then suction filtered to obtain a black powder, which was dried at 60°C for 24 hours and set aside.

[0070] b. Preparation of polypyrrole nanotube dispersion

[0071] 4.8 parts of bacterial cellulose were dispersed in 40 parts of 1-methyl-2-pyrrolidone with a high-speed mixer (5000 rpm / min) for 60 minutes, and then 0.4 parts of ...

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Abstract

The invention discloses carbon nanotube / polypyrrole nanotube composite electronic ink and a preparation method thereof, and relates to an electronic ink technology. The electronic ink is mainly prepared from, by weight, 0.4-1.2 parts of polypyrrole nanotube, 0.4-1.2 parts of carbon nanotubes, 1.2-4.8 parts of bacterial cellulose, 0.4-1.2 parts of a surface active agent, 0.2-0.6 part of carboxymethylcellulose, 0.4-1.2 parts of a color-fixing agent, 2-6 parts of 3-amidogen propyl triethoxysilane, 10-20 parts of ethyl alcohol, 50 parts of deionized water and 40 parts of 1-methyl-2-pyrrolidone. The electrical conductivity of polypyrrole powder obtained through freezing interface polymerization is high, and the polypyrrole powder can be taken as a nanomaterial of the electronic ink. After polypyrrole is modified through bacterial cellulose, the obtained dispersion liquid is more uniform, the phenomenon of precipitation and gathering cannot easily occur, and addition of the color-fixing agent, the carboxymethylcellulose and the 3-amidogen propyl triethoxysilane can improve the binding force between ink and basic materials. After the prepared ink is subjected to silk-screen printing, a coating with washable performance and higher electrical conductivity can be obtained, in the process of preparing the ink, conditions are controllable, and the cost is lower.

Description

technical field [0001] The invention discloses a carbon nanotube / polypyrrole nanotube composite electronic ink and a preparation method thereof, and relates to electronic ink technology. Background technique [0002] With the rapid development of the electronic product manufacturing industry, electronic ink, as the core functional material, is the key to the development of printed electronic technology. Electronic ink can be divided into organic, inorganic and composite materials. Commonly used conductive materials for inorganic electronic ink can be divided into two categories: metal and non-gold. Non-metals are mainly carbon materials. The high aspect ratio of carbon materials makes it easy to accumulate. Printing nozzles are clogged, and metal nanoparticle-based conductive inks have poor dispersion stability. Organic conductive inks are more stable and easy to store, but because of their low charge mobility, composite conductive inks have attracted the attention of many s...

Claims

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Application Information

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IPC IPC(8): C09D11/52C09D11/14C09D11/03
CPCC09D11/03C09D11/14C09D11/52
Inventor 许杰田佳鑫杨源陈泽琦周广昇柏自奎徐卫林
Owner WUHAN TEXTILE UNIV
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