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Sulfonated polymer/graphene nanocomposite material and its preparation method and application

A nano-composite material, sulfonated polymer technology, applied in conductive materials, nanotechnology, nanotechnology and other directions dispersed in non-conductive inorganic materials, can solve problems such as aggregation and low proportion of graphene

Inactive Publication Date: 2017-01-11
TRENDON TOUCH TECHNOLOGY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when graphene is dispersed in polymers, it tends to aggregate, resulting in a very low proportion of graphene added.

Method used

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  • Sulfonated polymer/graphene nanocomposite material and its preparation method and application
  • Sulfonated polymer/graphene nanocomposite material and its preparation method and application
  • Sulfonated polymer/graphene nanocomposite material and its preparation method and application

Examples

Experimental program
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preparation example Construction

[0037] Please also see figure 1 and figure 2 , the preparation method of above-mentioned sulfonated polymer / graphene nanocomposite material, comprises the steps:

[0038] Step S101, mixing graphene oxide and sulfonated polymer in a solvent to obtain a mixed solution.

[0039] For example, graphene oxide and sulfonated polymers can be added into different containers, and solvents can be added for dispersion and dissolution. The solvent for dissolving graphene oxide may be selected from one of deionized water, dimethylsulfoxide (DMSO), dimethylformamide (DMF), N-methylpyrrolidone (NMP) and ethanol. The solvent for dissolving the sulfonated polymer can be selected from either dimethyl sulfoxide (DMSO) or N-methylpyrrolidone (NMP). The preferred graphene oxide is dispersed by ultrasonic vibration, and then the uniformly dispersed graphene oxide is gradually dropped into the sulfonated polymer for thorough mixing. The preferred concentration of graphene oxide in the solvent is...

Embodiment 1

[0049] Taking 0.1wt% graphene / sulfonated polyimide composite material as an example, first disperse 10 mg of graphene oxide in 10 ml of deionized water, and perform ultrasonic vibration for 30 minutes. In addition, add 90 mg of sulfonated polyimide to 0.45 ml of Dimethyl sulfoxide (DMSO), and stir for 30 min. Then slowly drop the graphene oxide solution into the sulfonated polyimide solution, and keep stirring for 15 minutes to obtain a mixed solution. Then about 0.05ml of hydrazine with a mass concentration of 50% was added to the mixed solution, and refluxed at 100°C for 2 hours to reduce graphene oxide to graphene, then separated and purified, and dried to obtain sulfonated polysulfide Amide / graphene nanocomposites.

[0050] see Figure 5 , shows the TEM (transmission electron microscope) photograph of the sulfonated sulfonated polyimide / graphene nanocomposite material of Example 1. Depend on Figure 5 It can be seen that nanoscale graphene is uniformly dispersed betwee...

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Abstract

The invention discloses a sulfonated macromolecule / graphene nanocomposite and a manufacturing method and application of the sulfonated macromolecule / graphene nanocomposite. The manufacturing method of the sulfonated macromolecule / graphene nanocomposite includes the following steps that oxidized graphene and sulfonated macromolecules are mixed in a solvent, so that a mixed solution is acquired; a reducing agent is added to the mixed solution for a reduction reaction, and the sulfonated macromolecule / graphene nanocomposite is acquired, wherein the sulfonated macromolecule / graphene nanocomposite comprises the graphene and the sulfonated macromolecules evenly dispersed between graphene layers. When the oxidized graphene is reduced to the graphene through hydrazine, due to the fact that the sulfonated macromolecules are evenly inserted into the portions between the oxidized graphene layers in a penetrating mode, when the reduction reaction is conducted, the sulfonated macromolecules cannot be extruded by the graphene, and the proportion of the graphene added to the sulfonated macromolecules can be greatly increased.

Description

technical field [0001] The invention relates to a graphene composite material, in particular to a sulfonated polymer / graphene nanocomposite material and its preparation method and application. Background technique [0002] Indium tin oxide (ITO) transparent conductive film is widely used in solar cells, touch screens, flat panel displays and other electronic devices, but the raw material indium for preparing indium tin oxide (ITO) transparent electrodes is a rare and precious metal, and indium tin oxide (ITO) is an inorganic The oxide film is brittle, which limits its application in flexible touch screens. [0003] Since researchers at the University of Manchester in the United Kingdom prepared single atomic layer graphene for the first time in 2004, the excellent electrical properties of graphene have set off a research boom all over the world. Graphene is a single atomic layer two-dimensional material composed of carbon atoms arranged in a hexagonal honeycomb lattice plan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/24H01B13/00B82Y30/00B82Y40/00
Inventor 刘振宇李禄兴曾吉永吴总成
Owner TRENDON TOUCH TECHNOLOGY CORPORATION