Environmentally friendly nano graphene conductive ink and preparation method and application thereof

A technology of nano-graphene and conductive ink, which is applied in applications, inks, household appliances, etc., can solve the problem of silver being easily oxidized, and achieve the effects of meeting the requirements of printing suitability, improving stability, and widening the source of raw materials

Inactive Publication Date: 2019-04-05
蓝宇涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has been reported in the literature that graphene oxide and silver nanoparticles are composited for inkjet printing, but silver is easily oxidized, so the composite ink of graphene oxide and silver has limitations.

Method used

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  • Environmentally friendly nano graphene conductive ink and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Composition of raw materials (parts by weight): 20 parts of modified graphene oxide, 15 parts of silver citrate, 15 parts of copper citrate, 3 parts of aniline, 2 parts of gelatin, 1 part of magnesium stearate, tetrakis [β-(3,5 - 2 parts of tertiary butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester, 1 part of auxiliary agent, 50 parts of ethanol and 30 parts of water;

[0029] The auxiliary agent is composed of the following raw materials in parts by weight: 10 parts of polyethylene glycol 400, 2 parts of sorbitol, 1 part of simethicone, and 2 parts of Tween.

[0030] The modified graphene oxide is prepared by the following method:

[0031] S1. Graphene oxide is prepared by liquid phase exfoliation;

[0032] S2. Add the graphene oxide prepared in step S1 into deionized water, stir evenly with ultrasonic waves, add a silane coupling agent, stir and react at 60°C for 1h, cool to room temperature, centrifuge, discard the supernatant, and dry the solid to obtain ...

Embodiment 2

[0036] Raw material composition (parts by weight): 35 parts of modified graphene oxide, 25 parts of silver citrate, 20 parts of copper citrate, 10 parts of aniline, 5 parts of gelatin, 3 parts of zinc stearate, 5 parts of diphenylamine, 5 parts of additives 70 parts, 70 parts of ethanol and 50 parts of water;

[0037] The auxiliary agent is composed of the following raw materials in parts by weight: 15 parts of polyethylene glycol 400, 5 parts of sorbitol, 2 parts of simethicone, and 5 parts of Tween.

[0038] The modified graphene oxide is prepared by the following method:

[0039]S1. Graphene oxide is prepared by liquid phase exfoliation;

[0040] S2. Add the graphene oxide prepared in step S1 into deionized water, stir ultrasonically, add a silane coupling agent, stir and react at 60°C for 3h, cool to room temperature, centrifuge, discard the supernatant, and dry the solid to obtain Graphene oxide modified by silane coupling agent;

[0041] A preparation method of enviro...

Embodiment 3

[0044] Raw material composition (parts by weight): 22 parts of modified graphene oxide, 17 parts of silver citrate, 16 parts of copper citrate, 4 parts of aniline, 3 parts of gelatin, 2 parts of ethylene bisstearamide, 2,6-tri 3 parts of grade butyl-4-methylphenol, 2 parts of additives, 55 parts of ethanol and 25 parts of water;

[0045] The auxiliary agent is composed of the following raw materials in parts by weight: 12 parts of polyethylene glycol 400, 3 parts of sorbitol, 1.2 parts of simethicone, and 3 parts of Tween.

[0046] The modified graphene oxide is prepared by the following method:

[0047] S1. Graphene oxide is prepared by liquid phase exfoliation;

[0048] S2. Add the graphene oxide prepared in step S1 into deionized water, stir evenly with ultrasonic waves, add a silane coupling agent, stir and react at 60°C for 2h, cool to room temperature, centrifuge, discard the supernatant, and dry the solid to obtain Graphene oxide modified by silane coupling agent;

...

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Abstract

The invention provides environmentally friendly nano graphene conductive ink. The environmentally friendly nano graphene conductive ink is prepared from the following raw materials in parts by weight:26 parts of modified graphene oxide, 20 parts of silver citrate, 17 parts of copper citrate, 6 parts of aniline, 4 parts of gelatin, 2.5 parts of a dispersing agent, 4 parts of an antioxidant, 3 parts of an auxiliary agent, 60 parts of ethanol and 30 parts of water. The preparation method of the modified graphene oxide comprises the following steps: S1, preparing graphene oxide by using a liquid-phase stripping method; S2, adding the prepared graphene oxide in deionized water, ultrasonically stirring uniformly, adding a silane coupling agent, carrying out stirring reaction at the temperatureof 60 DEG C, cooling to the room temperature, centrifuging, removing supernatant liquid, and drying solid to obtain silane coupling agent modified graphene oxide. The preparation method is simple, rawmaterial sources are wide, the electrical resistivity of the conductive ink is low, and the environmentally friendly nano graphene conductive ink adheres to a base material strongly, is unlikely to oxidize, is good in stability, can meet the requirement for printability, and is safe and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of electronic printing, in particular to an environmentally friendly nano-graphene conductive ink. Background technique [0002] Inkjet printing technology, which can realize the direct writing of complex patterns, is one of the most promising methods to realize the patterning of functional materials. Important active components of many devices can be inkjet printed, including conductive electrodes, transistors, solar cells, light-emitting diodes, batteries and sensors. However, the development of patterned electrodes with high transparency and low resistivity remains an important challenge, especially in the field of developing highly integrated systems. Although different metal materials have been prepared into solutions in the production of electrodes, they are often unable to be stably dispersed in environmentally friendly solvents (such as in deionized water), requiring a large amount of organic additi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/52C09D11/38
CPCC09D11/38C09D11/52
Inventor 蓝宇涛
Owner 蓝宇涛
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