Graphene oxide and ionic liquid composite film and preparation method thereof

A composite film and ionic liquid technology, applied in the field of graphene oxide ionic liquid composite film and its preparation, to achieve the effects of excellent product performance, simple operation and excellent performance

Inactive Publication Date: 2016-04-20
NANJING XINYUE MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These composites use graphene oxide and polymers to form covalent bonds to improve the performance of graphene oxide films, but the effect of graphene oxide absorbing ions has not been well applied

Method used

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  • Graphene oxide and ionic liquid composite film and preparation method thereof
  • Graphene oxide and ionic liquid composite film and preparation method thereof
  • Graphene oxide and ionic liquid composite film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In this embodiment, 1-butyl-3-methylimidazole L lactate is used as the ionic liquid material to prepare a composite film, such as figure 1 As shown in the flow chart of the preparation of the graphene oxide polyionic liquid composite film, the preparation process is as follows:

[0024] Equipped with graphene oxide solution: among them, graphene oxide is prepared from graphite by traditional hummers method or improved hummers method; 200mg of freeze-dried GO powder is dissolved in 40mL of distilled water and ultrasonically dispersed for 1h to make it Fully dispersed to form a 5mg / mL graphene oxide aqueous solution;

[0025] Equipped with ionic liquid solution: Dissolve 5mg of 1-butyl-3-methylimidazole L-lactate into 5ml of distilled water, and ultrasonically disperse for 10min to fully disperse it to form a 1mg / mL ionic liquid solution;

[0026] Add the above-mentioned ionic liquid solution into the graphene oxide aqueous solution, ultrasonically disperse it for 30 min...

Embodiment 2

[0030] The difference between this embodiment and Example 1 is that the solvent of the ionic liquid is changed to ethanol, and other conditions are the same, and the preparation process is as follows:

[0031] Equipped with graphene oxide solution: among them, graphene oxide is prepared from graphite by traditional hummers method or improved hummers method; 200mg of freeze-dried GO powder is dissolved in 40mL of distilled water and ultrasonically dispersed for 1h to make it Fully dispersed to form a 5mg / mL graphene oxide aqueous solution;

[0032] Equipped with ionic liquid solution: Dissolve 5mg of 1-butyl-3-methylimidazole L-lactate into 5mL of ethanol, and disperse it by ultrasonic for 10min to fully disperse it to form a 1mg / mL ionic liquid solution;

[0033] Add the above-mentioned ionic liquid solution into the graphene oxide aqueous solution, ultrasonically disperse it for 30 minutes to make it fully dispersed, and obtain a blended solution of graphene oxide and ionic l...

Embodiment 3

[0035] In this example, 1,2-ethylenediamine trifluoromethanesulfonate is used as an ionic liquid material to prepare a high-performance composite film, such as figure 1 As shown in the flow chart of the preparation of the graphene oxide polyionic liquid composite film, the preparation process is as follows:

[0036] Equipped with graphene oxide solution: among them, graphene oxide is prepared from graphite by traditional hummers method or improved hummers method; 200mg of freeze-dried GO powder is dissolved in 40mL of distilled water and ultrasonically dispersed for 1h to make it Fully dispersed to form a 5mg / mL graphene oxide aqueous solution;

[0037] Equipped with ionic liquid solution: Dissolve 5mg of 1,2-ethylenediamine trifluoromethanesulfonate into 5ml of distilled water, and disperse it by ultrasonic for 10min to fully disperse it to form a 1mg / mL ionic liquid solution;

[0038] Add the above-mentioned ionic liquid solution into the graphene oxide aqueous solution, ul...

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Abstract

The invention belongs to the technical field of a graphene composite material and specifically relates to a graphene oxide and ionic liquid composite film and its preparation method. The preparation method comprises the following steps: adding a graphene oxide aqueous solution into an ionic liquid solution so as to obtain a blended solution of graphene oxide and ionic liquid, carrying out suction filtration on the blended solution, and draining to obtain the graphene oxide and ionic liquid composite film. The method is simple to operate and is low-cost. The obtained product has high mechanical property and excellent performance. In addition, mass production can be realized. The product has a wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of graphene composite materials, and in particular relates to a graphene oxide ionic liquid composite film and a preparation method thereof. Background technique [0002] At present, the vapor phase deposition method and redox method are the most widely used in the preparation methods of graphene. Graphene film has good electrical conductivity, thermal conductivity and mechanical strength; at present, the application of graphene film is relatively extensive in composite film, such as graphene oxide Composite with polymers such as polyvinyl alcohol (PVA) to form a film. These composites use graphene oxide and polymers to form covalent bonds to improve the performance of graphene oxide films, but the effect of graphene oxide absorbing ions has not been well applied. [0003] In order to solve the above problems, the present invention provides a method for preparing a graphene oxide and ionic liquid composite ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/04C07D233/58C07C309/06C07C303/32C07C211/10
CPCC01P2002/82C01P2006/90C07C211/10C07C303/32C07C309/06C07D233/58
Inventor 闵永刚申佳欣刘屹东莫申斌张栋
Owner NANJING XINYUE MATERIAL SCI & TECH
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