Unlock instant, AI-driven research and patent intelligence for your innovation.

Copper-coated steel corrosion-resistant conductive coating for electric power system and preparation method of copper-coated steel corrosion-resistant conductive coating

A technology of conductive coating and power system, applied in conductive coatings, coatings, anti-corrosion coatings, etc., to achieve the effect of improving mechanical strength, simple and practical method, and increased flexibility

Active Publication Date: 2022-04-12
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +2
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But after all, it is dispersed throughout the concrete structure, and the copper-clad steel surface is still exposed to corrosive media

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] A method for preparing a copper-clad steel corrosion-resistant conductive coating for a power system, comprising the following steps:

[0025] (1) Pretreat the surface of the copper-clad steel, which specifically includes washing the copper-clad steel with ethanol, pickling, and water in sequence, and then polishing it with 200-grit sandpaper.

[0026] (2) Preparation of corrosion-resistant conductive coating: In 100ml of buffer solution with pH of 9.5-10.5, add 0.1-0.3g sodium dodecylbenzenesulfonate, 0.4-0.6g polyglycerol ester, 0.3-0.5g water-based hydroxyacrylic acid Resin, 0.2~0.4g organic amine modified epoxy resin, 0.4~0.6g mercaptoethanol, 0.1~0.3g copper chelating agent, 3~5g graphene powder, stir, and then ultrasonic in the ultrasonic instrument for 5~15 minutes, then Reflux reaction at 75-85°C for 8-12 hours;

[0027] Preferably, 0.15-0.25g sodium dodecylbenzenesulfonate, 0.45-0.55g polyglycerol ester, 0.35-0.45g water-based hydroxyacrylic resin, 0.25-0.35g ...

Embodiment 1

[0034] (1) Pre-treat the surface of 2# copper-clad steel, that is, the copper-clad steel is washed with ethanol, pickled, washed with water, and polished with 200-grit sandpaper for later use.

[0035] (2) Preparation of corrosion-resistant conductive coating: In 100ml of ammonia water-ammonium chloride buffer solution with pH 10, 5.4g of ammonium chloride and 35ml of concentrated ammonia solution. Add 0.2g sodium dodecylbenzenesulfonate, 0.5g polyglycerol ester, 0.4g water-based hydroxyacrylic resin, 0.3g organic amine modified epoxy resin, 0.5g mercaptoethanol, 0.2g copper chelating agent ethylenediaminetetraacetic acid Disodium, 4g reduced graphene powder, particle size 10-30μm. Stir and sonicate for 10 minutes, heat up to 80°C, and reflux for 10 hours.

[0036] (3) Put the above-mentioned paint into a watering can, and use a spray gun to evenly spray it on the surface of the cleaned 2# copper-clad steel, spray it once, and then stand it in the dust removal room for one ho...

Embodiment 2

[0039] (1) Pre-treat the surface of 3# copper-clad steel, that is, the copper-clad steel is washed with ethanol, pickled, washed with water, and polished with 200-grit sandpaper for later use.

[0040] (2) Preparation of corrosion-resistant conductive coating: In 100ml of ammonia water-ammonium chloride buffer solution with pH 10, 5.4g of ammonium chloride and 35ml of concentrated ammonia solution. Add 0.1g sodium dodecylbenzenesulfonate, 0.4g polyglycerol ester, 0.3g water-based hydroxyacrylic resin, 0.2g organic amine modified epoxy resin, 0.4g mercaptoethanol, 0.1g copper chelating agent ethylenediaminetetraacetic acid Disodium, 3g reduced graphene powder, particle size 10-30μm. Stir and sonicate for 5 minutes, heat up to 75°C, and reflux for 8 hours.

[0041] (3) Put the above solution into the paint, and use a spray gun to evenly spray it on the surface of the cleaned 3# copper-clad steel, spray it twice, and then stand it in the dust removal room for one hour.

[0042] (...

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
particle diameteraaaaaaaaaa
adhesivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a copper-clad steel corrosion-resistant conductive coating for an electric power system and a preparation method thereof. The preparation method comprises the following steps: pretreating the surface of copper-clad steel; preparing a copper surface corrosion-resistant conductive coating with strong adhesive force; spraying a copper-coated steel coating; and curing. The coating has the beneficial effects that the corrosion resistance and the conductivity of the coating can be remarkably improved through the combined action of the reduced graphene powder with high conductivity added into the coating and the chemical component hydroxyethanol with high adhesive force with the copper surface, and the service life of a copper-coated steel material can be prolonged. The method can be widely applied to protection of copper-clad steel materials of power systems, and can also be applied to protection of copper surfaces in general environments.

Description

technical field [0001] The invention relates to the field of copper-clad steel protection, in particular to a copper-clad steel corrosion-resistant conductive coating for power systems and a preparation method thereof. Background technique [0002] The grounding system is an important guarantee for maintaining the safe operation of substations. Because copper has good electrical properties, has good electrical conductivity, and the chemical properties of copper are stable, it is more advantageous to use in acidic soil. Therefore, some developed countries such as the United States and Japan mostly use pure copper as the grounding material. However, due to the high cost of pure copper, it has not been widely used in our country. Combining the excellent chemical stability of copper and the good electrical conductivity of steel, people have prepared some new grounding materials, such as carbon steel as the base surface covered with copper or copper alloy, but in acidic solutio...

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 Applications(China)
IPC IPC(8): C09D133/04C09D163/00C09D5/24C09D5/08
Inventor 田旭刘欣裴锋贾蕗路胡家元曾祥徐碧川邓辰星
Owner STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST