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

A kind of preparation method of surface-modified graphite microflake waterborne epoxy resin anticorrosion coating

A technology of water-based epoxy resin and graphite microchips, which is applied in the direction of epoxy resin coatings, anti-corrosion coatings, polyester coatings, etc., can solve the problems of poor anti-corrosion effect, and achieve the characteristics of not easy to pulverize, increase adhesion, and good weather resistance Effect

Active Publication Date: 2021-04-20
YANTAI HENGNUO CHEM TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem of poor anticorrosion effect of existing epoxy resin coatings, the present invention provides a method for preparing surface-modified graphite microchip water-based epoxy resin anticorrosion coatings

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
  • A kind of preparation method of surface-modified graphite microflake waterborne epoxy resin anticorrosion coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method for surface-modified graphite microflake waterborne epoxy resin anticorrosion coating, comprising the following steps:

[0023] 1) Preparation of graphite oxide powder: immerse 10g of ground graphite powder in 200ml of concentrated nitric acid, soak for 1h at 0°C, cool down to -15°C, add 1ml of concentrated phosphoric acid and 40g of potassium ferrate, react at 60°C for 0.5h and then centrifuge , washing the filter cake with deionized water until the pH of the washing solution is 6-7, placing it in a vacuum drying oven, and drying at 60°C for 6 hours to obtain graphite oxide powder;

[0024] 2) prepare the graphite oxide powder of hydroxyl group and carboxyl group: the graphite oxide powder containing NaBH 4 and CaCl 2 Soak in the solution for 10 hours and then filter, wash the filter cake with deionized water and dry it in a drying oven at 60°C for 6 hours to obtain multilayer graphite powder containing hydroxyl and carboxyl groups;

[0025] 3) P...

Embodiment 2

[0030] A preparation method for surface-modified graphite microflake waterborne epoxy resin anticorrosion coating, comprising the following steps:

[0031] 1) Preparation of graphite oxide powder: immerse 10g of ground graphite powder in 200ml of concentrated nitric acid, soak for 1.5h at 0°C, cool down to -15°C, add 1ml of concentrated phosphoric acid and 40g of potassium ferrate, react at 25°C for 12h and then centrifuge , washing the filter cake with deionized water until the pH of the washing solution is 6-7, placing it in a vacuum drying oven, and drying at 65°C for 5 hours to obtain graphite oxide powder;

[0032]2) prepare the graphite oxide powder of hydroxyl group and carboxyl group: the graphite oxide powder containing NaBH 4 and CaCl 2 Soak in the solution for 9 hours and then filter, wash the filter cake with deionized water and dry it in a drying oven at 60°C for 6 hours to obtain a multilayer graphite powder containing hydroxyl and carboxyl groups;

[0033] 3) ...

Embodiment 3

[0038] A preparation method for surface-modified graphite microflake waterborne epoxy resin anticorrosion coating, comprising the following steps:

[0039] 1) Preparation of graphite oxide powder: immerse 10g of ground graphite powder in 200ml of concentrated nitric acid, soak at 0°C for 2h, cool down to -15°C, add 1ml of concentrated phosphoric acid and 40g of potassium ferrate, react at -10°C for 24h and then centrifuge , washing the filter cake with deionized water until the pH of the washing solution is 6-7, placing it in a vacuum drying oven, and drying at 70°C for 4 hours to obtain graphite oxide powder;

[0040] 2) prepare the graphite oxide powder of hydroxyl group and carboxyl group: the graphite oxide powder containing NaBH 4 and CaCl 2 Soak in the solution for 10 hours and then filter, wash the filter cake with deionized water and dry it in a drying oven at 60°C for 6 hours to obtain multilayer graphite powder containing hydroxyl and carboxyl groups;

[0041] 3) P...

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 discloses a preparation method of surface-modified graphite microflake water-based epoxy resin anticorrosion coating, which comprises preparing graphite oxide powder, preparing graphite oxide powder of hydroxyl group and carboxyl group, preparing surface-modified multilayer graphite microflake metal salt solution, Preparation of water-soluble alkyd resin containing modified multilayer graphite microflakes, preparation of surface modified multilayer graphite microflake waterborne epoxy resin and preparation of two-component anti-corrosion coatings. The beneficial effect of the present invention is: the stable sp2 hybrid structure of graphite in the surface-modified graphite microflake water-based epoxy resin anticorrosion coating of the present invention is attached to the surface of the substrate, so that it can form a physical barrier layer between the substrate and the active medium , prevent diffusion and penetration, prevent the infiltration of corrosive factors such as water molecules, oxygen, and chloride ions, so that the coating has good weather resistance, durability, gloss retention and color retention, and is not easy to powder, yellow, and decorative Good sex.

Description

technical field [0001] The invention relates to an epoxy resin anticorrosion coating, in particular to a preparation method of a surface-modified graphite microchip water-based epoxy resin anticorrosion coating. Background technique [0002] Traditional epoxy resin coatings also contain a large amount of organic solvents. Organic solvents are flammable, explosive, toxic and harmful to the environment, making traditional epoxy resin coatings highly polluting and high-risk; water-based epoxy resin coatings are non-toxic, non-flammable, and non-polluting. environment, saving energy and so on. However, water-based epoxy resins are inferior to solvent-based epoxy resin coatings in many properties such as chemical resistance, abrasion resistance, hardness, water resistance, etc. [0003] The flakes in graphite microflakes are a two-dimensional (2D) layered material with a new type of lamellar structure composed of carbon atoms. It is a hexagonal honeycomb lattice plane composed o...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D167/08C09D5/08C09D7/62
CPCC08K2003/166C08K2003/3081C08L2201/08C09D5/08C09D163/00C09D167/08C09D7/62C08K9/02C08K3/042C08K3/16C08K3/30
Inventor 任朋成
Owner YANTAI HENGNUO CHEM TECH 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