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Insulating anti-corrosive coating for cables

An anti-corrosion coating and cable technology, applied in anti-corrosion coatings, anti-fouling/underwater coatings, epoxy resin coatings, etc., can solve the problems of cable insulation and anti-corrosion performance to be improved, and achieve good insulation effect and corrosion resistance. , avoid brittleness, high mechanical strength effect

Inactive Publication Date: 2021-11-16
SHANGHAI SHENJIE ENVIRONMENTAL PROTECTION TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an insulating and anti-corrosion coating for cables, which solves the problem that the insulation and anti-corrosion performance of cables in harsh environments needs to be improved

Method used

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  • Insulating anti-corrosive coating for cables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] An insulating and anti-corrosion coating for electric cables, according to the mass fraction ratio, its formula includes the following components:

[0042] A component:

[0043] 28 parts of aqueous epoxy resin emulsion;

[0044] 10 parts of glass fiber;

[0045] Glass fiber diameter 10μm;

[0046] 3 parts preservative;

[0047] 0.5 part of ultraviolet fluorescent powder;

[0048] The particle size of ultraviolet fluorescent powder is 5μm, which can be developed under ultraviolet light with a wavelength of 190-400nm;

[0049] 21 parts ceramic powder;

[0050] The particle size of ceramic powder is 10μm;

[0051] 2 parts of film-forming auxiliary solvent;

[0052] The film-forming auxiliary solvent is propylene glycol methyl ether;

[0053] 0.2 part of defoamer;

[0054] 0.5 parts of coupling agent;

[0055] Leveling agent 0.5 part;

[0056] B component:

[0057] 20 parts of water-based epoxy curing agent;

[0058] 50 parts of deionized water;

[0059] Accor...

Embodiment 2

[0062] An insulating and anti-corrosion coating for electric cables, according to the mass fraction ratio, its formula includes the following components:

[0063] A component:

[0064] 35 parts of aqueous epoxy resin emulsion;

[0065] 5 parts glass fiber;

[0066] Glass fiber diameter 10μm;

[0067] 3 parts preservative;

[0068] 0.5 part of ultraviolet fluorescent powder;

[0069] The particle size of ultraviolet fluorescent powder is 5μm, which can be developed under ultraviolet light with a wavelength of 190-400nm;

[0070] 6 parts ceramic powder;

[0071] The particle size of ceramic powder is 20μm;

[0072] 4 parts of film-forming auxiliary solvent;

[0073] Film-forming auxiliary solvent is propylene glycol methyl ether acetate;

[0074] 1.5 parts of defoamer;

[0075] 1.5 parts of coupling agent;

[0076] Leveling agent 1.5 parts;

[0077] B component:

[0078] 30 parts of water-based epoxy curing agent;

[0079] 50 parts of deionized water;

[0080] Acco...

Embodiment 3

[0083] An insulating and anti-corrosion coating for electric cables, according to the mass fraction ratio, its formula includes the following components:

[0084] A component:

[0085] 32 parts of aqueous epoxy resin emulsion;

[0086] 7 parts glass fiber;

[0087] Glass fiber diameter 15μm;

[0088] 1.5 parts of preservatives;

[0089] 0.3 parts of ultraviolet fluorescent powder;

[0090] The particle size of ultraviolet fluorescent powder is 10μm, which can be developed under ultraviolet light with a wavelength of 190-400nm;

[0091] 15 parts ceramic powder;

[0092] The particle size of ceramic powder is 15μm;

[0093] 3 parts of film-forming auxiliary solvent;

[0094] The film-forming cosolvent is 3-ethyl ether propionate;

[0095] 1.2 parts of defoamer;

[0096] 1 part of coupling agent;

[0097] Leveling agent 0.8 part;

[0098] B component:

[0099] 25 parts of water-based epoxy curing agent;

[0100] 50 parts of deionized water;

[0101] According to the m...

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Abstract

The invention discloses an insulating anti-corrosive coating for cables, and belongs to the technical field of cable coatings. The formula comprises a component A and a component B. The component A comprises: 28-35 parts of a waterborne epoxy resin emulsion; 5-10 parts of glass fibers; 0.5-3 parts of a preservative; 0.1-0.5 parts of ultraviolet fluorescent powder; 6-21 parts of ceramic powder; 2-4 parts of a film-forming cosolvent; 0.2-1.5 parts of a defoaming agent; 0.5-1.5 parts of a coupling agent; and 0.5-1.5 parts of a leveling agent. The component B comprises 20-30 parts of a waterborne epoxy curing agent; and 50 parts of deionized water. The ceramic powder is used, so that the wear resistance, the insulating property and the corrosion resistance are improved. The glass fibers are good in insulativity, high in heat resistance, good in corrosion resistance and high in mechanical strength, and by combining the glass fibers with the waterborne epoxy resin emulsion and the ceramic powder, the defects of brittleness and poor wear resistance can be overcome, and a good insulation effect and corrosion resistance are provided for cables. The ultraviolet fluorescent powder is adopted in the coating, and whether there is a coating layer or not and whether the coating layer has loopholes or not can be visually found through ultraviolet irradiation.

Description

technical field [0001] The invention relates to an insulating anticorrosion coating for cables, belonging to the technical field of cable coatings. Background technique [0002] Cables have the purpose of transmitting and distributing electric energy. Cables are often used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In power lines, the proportion of cables is gradually increasing. The working environment of cables is more complex and diverse. Some cables need to be buried in the soil, and some are erected in the air. These cables usually require insulation and anti-corrosion measures to avoid leakage and corrosion, which may cause potential safety hazards. The insulation layer of the cable is usually made of insulating materials, such as polyvinyl chloride (PVC) insulated cables and rubber cables. For cables used in harsh outdoor en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D5/25C09D7/61C09D5/14
CPCC09D163/00C09D5/08C09D5/00C09D7/61C09D5/14C09D7/70C08K7/14C08K3/00
Inventor 张思平
Owner SHANGHAI SHENJIE ENVIRONMENTAL PROTECTION TECH DEV
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