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A kind of fluorine-containing silane modified graphene oxide and its preparation method and application

A technology containing fluorine-containing silane and oxide stone, applied in the field of chemical materials, can solve the problems of complex preparation process, unobtainable raw materials, poor amphiphilic graphene oxide performance and the like

Active Publication Date: 2021-04-23
NINGBO FENGCHENG NANOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the performance of amphiphilic graphene oxide obtained by modifying graphene oxide with aliphatic amine is not very good.
However, the method of modifying the amphiphilic polymer needs to prepare the amphiphilic polymer first. The raw materials of this method are not easy to obtain, and the preparation process is complicated, so it is not suitable for mass production.

Method used

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  • A kind of fluorine-containing silane modified graphene oxide and its preparation method and application
  • A kind of fluorine-containing silane modified graphene oxide and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] (1) The graphene oxide purchased is diluted with deionized water, and the deionized water dispersion of graphene oxide is subjected to high-speed shearing by a high-speed mixer, and the stirring rate is controlled to be 2000rpm, and the stirring time is 3 hours to obtain graphene oxide The aqueous dispersion liquid of the graphene oxide, wherein, in the aqueous dispersion liquid of graphene oxide, the concentration of graphene oxide is 0.5mg / ml, and the particle diameter of graphene oxide after shearing is 100-300nm.

[0052] (2) Hydrolyze 0.15g of perfluorodecyltriethoxysilane in 12ml of ethanol to form a solution of perfluorodecyltriethoxysilane, add 18ml of kerosene to the solution of perfluorodecyltriethoxysilane as a template agent, prepared as 30ml kerosene / perfluorodecyltriethoxysilane / ethanol dispersion.

[0053] (3) Get 300ml of the water dispersion of graphene oxide in step (1), slowly add in the kerosene / perfluorodecyltriethoxysilane / ethanol dispersion prepar...

Embodiment 2

[0056] (1) The graphene oxide purchased is diluted with deionized water, and the deionized water dispersion of graphene oxide is sheared at high speed using a high-speed mixer, and the stirring rate is controlled to be 1500rpm, and the stirring time is 2.5 hours to obtain graphene oxide The aqueous dispersion liquid of the graphene oxide, wherein, in the aqueous dispersion liquid of graphene oxide, the concentration of graphene oxide is 0.2mg / ml, and the particle diameter of graphene oxide after shearing is 100-300nm.

[0057] (2) 0.21g of perfluorodecyltrimethoxysilane is hydrolyzed in 17ml of methanol to form a perfluorodecyltrimethoxysilane solution, and 13g of paraffin is added to the perfluorodecyltrimethoxysilane solution as a templating agent, Prepare 30ml paraffin / perfluorodecyltrimethoxysilane / methanol dispersion.

[0058] (3) Take 400ml of the aqueous dispersion of graphene oxide in step (1), slowly add it to the prepared paraffin / perfluorodecyltrimethoxysilane / metha...

Embodiment 3

[0061] (1) The graphene oxide purchased is diluted with deionized water, and the deionized water dispersion of graphene oxide is sheared at a high speed by a high-speed mixer, and the stirring rate is controlled to be 1000rpm, and the stirring time is 4 hours to obtain graphene oxide The aqueous dispersion liquid of the graphene oxide, wherein, in the aqueous dispersion liquid of graphene oxide, the concentration of graphene oxide is 0.1mg / ml, and the particle diameter of graphene oxide after shearing is 100-300nm.

[0062] (2) Hydrolyze 0.09 g of tridecafluorooctyltrimethoxysilane in 7 ml of propanol to form tridecafluorooctyltrimethoxysilane solution, add 23 ml of kerosene to tridecafluorooctyltrimethoxysilane solution as Template agent, prepared as 30ml kerosene / tridecafluorooctyltrimethoxysilane / propanol dispersion.

[0063] (3) Get 200ml of the water dispersion of graphene oxide in step (1), slowly add in the prepared kerosene / tridecafluorooctyltrimethoxysilane / propanol d...

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Abstract

The present application discloses a fluorine-containing silane-modified graphene oxide, its preparation method and application. Wherein, the preparation method of the fluorine-containing silane-modified graphene oxide comprises: mixing the graphene oxide dispersion liquid and the fluorine-containing silane solution, and reacting under the action of a template agent to obtain the fluorine-containing silane-modified graphene oxide. The preparation method adopts the template method, and the fluorine-containing silane is grafted with graphene oxide to obtain amphiphilic graphene oxide with good performance, which greatly improves the dispersibility of graphene oxide in water and oily solvents, and further expands its application. .

Description

technical field [0001] The present application relates to a fluorine-containing silane-modified graphene oxide, more specifically, relates to a fluorine-containing silane-modified graphene oxide and its preparation method and application, belonging to the field of chemical materials. Background technique [0002] Graphene is the thinnest known material. Due to its unique sheet structure, it has excellent corrosion resistance, super electrical conductivity, and thermal conductivity. It has received widespread attention in the fields of coatings, batteries, electronic materials, and heat dissipation materials. Graphene oxide is a graphene derivative material with a large number of oxygen-containing groups on the surface. The oxygen-containing groups on the surface of graphene oxide materials allow the material to be modified in a variety of ways, enabling controllable design of functions. The surface of graphene oxide contains oxygen-containing groups such as carboxyl groups,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/46C09C3/12C09D7/62
CPCC01P2006/22C09C1/46C09C3/12C09D7/62
Inventor 张静沈萍俞波明亮
Owner NINGBO FENGCHENG NANOTECHNOLOGY CO LTD