Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of dispersed graphene with bifunctional ligands for coatings

A dual-functional group, dispersed graphite technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of complex technical means and unsuitable water phase systems, and achieve simple process routes, excellent performance, and improved corrosion resistance performance effect

Active Publication Date: 2019-02-01
XINHE NEW MATERIALS CO LTD
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, in view of the above content, the present invention provides a method for preparing graphene dispersed with bifunctional ligands for coatings, which solves the problem that the technical means for improving the dispersibility of graphene in oxides in the prior art are complicated and are not suitable for aqueous phase systems. Shortcomings

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of dispersed graphene with bifunctional ligands for coatings
  • Preparation method of dispersed graphene with bifunctional ligands for coatings
  • Preparation method of dispersed graphene with bifunctional ligands for coatings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] refer to Figure 8 , a kind of preparation method of bifunctional ligand dispersed graphene for coating, comprises the following steps:

[0030] (1) Get 11050 liters of pure water as a solvent, add 10 moles of silicon dioxide and 1 mole of p-aminobenzoic acid successively under the condition of magnetic stirring, stir with a magnetic stirrer for 10 minutes, add 0.05 moles of graphene during the stirring process, and obtain Mix the solution, the rotating speed of the magnetic stirrer is 800 rpm, and the temperature is 10 degrees Celsius; the graphene is graphene containing carbon-oxygen bond defects prepared by redox method;

[0031] (2) Stir the mixed solution described in step (1) for 3 hours, the rotating speed of the magnetic stirrer is 500 rpm, the temperature is 10 degrees Celsius, and the silica-graphene is obtained by drying after centrifugation, and the centrifugal speed is 5000 rpm, The centrifugation time is 10 minutes, centrifuged three times, and the silica...

Embodiment 2

[0035] A preparation method for coating bifunctional ligand-dispersed graphene, comprising the following steps:

[0036] (1) Take 65 liters of ethanol as a solvent, add 10 moles of silicon dioxide and 50 moles of lysine successively under the condition of magnetic stirring, stir with a magnetic stirrer for 20 minutes, add 5 moles of graphene during the stirring process, and obtain a mixed solution , the rotating speed of the magnetic stirrer is 600 rpm, and the temperature is 25 degrees Celsius; the graphene is graphene containing carbon-oxygen bond defects prepared by combustion method;

[0037] (2) Stir the mixed solution described in step (1) for 2 hours, the rotating speed of the magnetic stirrer is 600 rpm, and the temperature is 25 degrees Celsius, and the centrifugal operation is performed at a centrifugal speed of 8000 rpm, and the centrifugation time is 8 minutes. Three times, the obtained oxide-graphene was washed with pure water between two separate centrifugation o...

Embodiment 3

[0041] A preparation method for coating bifunctional ligand-dispersed graphene, comprising the following steps:

[0042] (1) Take 320 liters of pure water as a solvent, add 10 moles of titanium dioxide and 20 moles of p-aminobenzoic acid successively under the condition of magnetic stirring, stir with a magnetic stirrer for 5 minutes, add 2 moles of graphene during the stirring process, and obtain a mixed solution , the rotating speed of the magnetic stirrer is 800 rpm, and the temperature is 50 degrees Celsius; the graphene is graphene containing carbon-oxygen bond defects prepared by redox method;

[0043] (2) Stir the mixed solution described in step (1) for 1 hour, the rotating speed of the magnetic stirrer is 800 rpm, and the temperature is 50 degrees Celsius, and the centrifugal operation is performed at a centrifugal speed of 10000 rpm, and the centrifugation time is 10 minutes. Three times, the obtained titanium dioxide-graphene was washed with pure water between two c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the field of dispersed graphene preparation, and particularly relates to a preparation method of dispersed graphene with bifunctional ligands for coatings. The preparation method includes the following steps: (1) mixing oxides and bifunctional ligands in pigments or fillers for coatings in solvents, and adding graphene into the mixture while stirring the mixture with a magnetic stirring device, thereby obtaining a mixed solution; (2) continuously stirring the mixed solution obtained in step (1) for 1-3 hours, and carrying out centrifuging and drying to obtain oxide-graphene; and (3) adding the oxide-graphene prepared in step (2) into liquid for further use, carrying out dispersing with a high-speed stirring device, and then adding resins, thereby obtaining a highly-dispersed graphene coating application system. The preparation method is simple and convenient in whole process route and low in energy consumption, and the obtained graphene is good in dispersion performance, and is of great benefit in the application of anti-corrosion coatings, solar cells and other fields.

Description

technical field [0001] The invention relates to the field of preparation of dispersed graphene, in particular to a preparation method of bifunctional ligand dispersed graphene for coating. Background technique [0002] Graphene is an important new material, due to its excellent two-dimensional structure and semiconductor structure, mixed with oxides in energy, transparent conductive materials, field emission devices, gas sensors, lithium-ion batteries, solar cells, catalysis and anti-corrosion The field has attractive application prospects, but due to its easy agglomeration nature, it causes excessive addition and weakened performance when used. Therefore, it is of great significance to invent a method that can improve the dispersion of graphene in oxides. [0003] Due to the characteristics of two-dimensional materials that are easy to cause stacking and agglomeration, the industry has been working on improving the dispersion of graphene in oxides, but the methods used are...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D7/62C09D163/10C09D5/08
CPCC08K2003/2241C09D5/08C09D163/10C09D7/62C08K9/04C08K3/042C08K3/36C08K3/22
Inventor 杨靖霞王书传吴海波徐菁利王诗榕王黎东
Owner XINHE NEW MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com