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

Conductive anticorrosive coating and preparation method thereof

A technology of anti-corrosion coatings and coatings, applied in anti-corrosion coatings, conductive coatings, epoxy resin coatings, etc., can solve the problems of large amount of fillers, strict pre-treatment of substrates, resin incompatibility, etc., to improve temperature resistance Anti-combustion performance, improvement of construction process, and improvement of corrosion resistance

Active Publication Date: 2015-05-13
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For metal-type conductive coatings, the commonly used silver-filled type has the disadvantage of high cost, and is prone to migration, resulting in a decrease in the conductivity of the coating and resulting in unstable conductivity.
Copper has the danger of polluting the environment. In addition, the potential difference between copper and the carbon steel material of the grounding grid is large, which may easily cause galvanic corrosion of the grounding grid material, resulting in rapid damage to the grounding grid.
Nickel powder is easy to oxidize, and the electrical conductivity decreases after oxidation.
Conductive coatings filled with metal oxides have poor electrical conductivity
Organic conductive polymer coating is a kind of coating with adjustable conductivity, but it is difficult to process and has poor process performance.
The single nano-carbon type conductive coating has a large amount of filler added, and the nano-carbon is not easy to disperse in the coating, and there is a certain incompatibility with the resin; the pretreatment of the substrate is relatively strict, etc.

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
  • Conductive anticorrosive coating and preparation method thereof
  • Conductive anticorrosive coating and preparation method thereof
  • Conductive anticorrosive coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A conductive, anti-corrosion paint, paint film formers, pigments and fillers and additives include the following components:

[0045]

[0046]

[0047] The preparation method of the conductive, anti-corrosion coating of the present embodiment is as follows:

[0048] (1) Mix other paint film formers, pigments and fillers, auxiliary components and mixed solvents except epoxy resin curing agent, put them in a paint grinder, stir and grind at a speed of 1850rpm for 15 minutes, then use 200 mesh filter;

[0049] (2) Add epoxy resin curing agent, mix and stir evenly, and you get it.

[0050] The paint of this embodiment was sprayed or brushed onto the surface of the sandblasted carbon steel part by spraying or brushing, and after curing at room temperature for 24 hours, a conductive and anti-corrosion coating with a thickness of 180 μm was obtained.

[0051] The surface resistivity of the coating was 75 Ωcm. Coated Q235 steel was treated at 30°C, 5%NaOH, 5%H 2 SO 4...

Embodiment 2

[0053] A kind of conductive, anti-corrosion paint, paint film former, pigment and filler and auxiliary agent comprise the following components:

[0054]

[0055]

[0056] The preparation method of the conductive, anti-corrosion coating of the present embodiment is as follows:

[0057] (1) Mix other paint film formers, pigments and fillers, auxiliary components and mixed solvents except epoxy resin curing agent, put them in a paint grinder, stir and grind at a speed of 2050rpm for 25 minutes, then use 200 mesh filter;

[0058] (2) Add epoxy resin curing agent, mix and stir evenly, and get ready.

[0059] Spray or brush the paint of this embodiment onto the surface of the sandblasted carbon steel part, and after curing at room temperature for 24 hours, a 200 μm thick conductive and anti-corrosion coating is obtained.

[0060] The surface resistivity of the coating was 80 Ωcm. Coated Q235 steel was treated at 30°C, 5%NaOH, 5%H 2 SO 4 After immersing in 3.5% NaCl solution...

Embodiment 3

[0062] A kind of conductive, anti-corrosion paint, paint film former, pigment and filler and auxiliary agent comprise the following components:

[0063]

[0064]

[0065] The preparation method of the conductive, anti-corrosion coating of the present embodiment is as follows:

[0066] (1) Mix other coating film formers, pigments and fillers, auxiliary components and mixed solvents except epoxy resin curing agent, put them into a coating grinder, stir and grind at a speed of 1500rpm for 25 minutes, then use 200 mesh filter;

[0067] (2) Add epoxy resin curing agent, mix and stir evenly, and get ready.

[0068] The paint of this embodiment was sprayed or brushed on the surface of the sandblasted carbon steel parts by spraying or brushing, and after curing at room temperature for 24 hours, a conductive and anti-corrosion coating with a thickness of 250 μm was obtained.

[0069] The surface resistivity of the coating was 70 Ωcm. Coated Q235 steel was treated at 30°C, 5%Na...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
lengthaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a conductive anticorrosive coating and a preparation method thereof. The conductive anticorrosive coating mainly consists of epoxy resin, an epoxy resin curing agent, a composite conductive filler, a preservative, a reactive diluent, a flame retardant and a mixed solvent. The conductive anticorrosive coating provided by the invention is used for preparing a conductive anticorrosive coating layer on the surface of a workpiece well treated in a spray-coating or brush-coating way, and can be widely applied to metal structural elements such as a grounding grid device in the power industry and an oil storing device in the petrochemical industry to realize the functions of electric conducting, electrostatic conducting, anti-corrosion and the like, and therefore, the metal structural elements are capable of meeting the requirements of use on spot. The preparation process of the coating provided by the invention is simple and easy for realization of industrial production.

Description

technical field [0001] The invention belongs to the field of coatings, in particular, the invention relates to a conductive and anti-corrosion coating for a power system grounding grid and a preparation method thereof. Background technique [0002] Substations and line towers are important components of the power system, and the stability of their operation is related to the safe and reliable operation of the power grid and the safety of power transmission and transformation equipment. The grounding device has been in the harsh underground operating environment for a long time, and soil corrosion is inevitable. The main causes of ground grid corrosion are corrosion of micro-batteries, galvanic corrosion, microbial corrosion, and stray current corrosion. [0003] The corrosion protection of the grounding grid mainly starts from two aspects, one is to change the corrosion environment and reduce the corrosion of the environment; the other is to change the corrosion resistance ...

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): C09D163/00C09D5/24C09D5/08C09D5/10
Inventor 刘世念王成王文吕旺燕吴航苏伟朱圣龙魏增福王福会付强王群昌
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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