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Anticorrosive paint for power cables

A technology for anti-corrosion coatings and power cables, applied in anti-corrosion coatings, coatings, plastic/resin/wax insulators, etc. The effect of preventing acid, alkali, salt and damp heat, reducing safety hazards and improving service life

Inactive Publication Date: 2014-11-19
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects in the prior art that the power cable material is easily corroded, has poor flame retardancy and water resistance, short service life, and is prone to safety hazards, the present invention provides an anti-corrosion coating for power cables

Method used

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  • Anticorrosive paint for power cables

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of anticorrosion coating for power cable, it is prepared according to the following method:

[0018] Step 1) Preparation of material A: sequentially add acrylic acid, N-methylpyrrolidone, polyoxyethylene lauryl ether, emulsified silicone oil and phthalate into the reactor, and stir at 1000 rpm for 5 minutes to obtain material A; Wherein, the weight ratio of acrylic acid, N-methylpyrrolidone, polyoxyethylene lauryl ether, emulsified silicone oil and phthalate is 10:6:5:3:1;

[0019] Step 2) Preparation of material B: send borax, white graphite and aluminum tripolyphosphate to a ball mill, grind to a powder with a particle size of 500 mesh, then mix the powder with sodium silicate evenly, which is material B; wherein, borax, sodium The weight ratio of water glass, white graphite and aluminum tripolyphosphate is 3:2:1:1;

[0020] Step 3) preparing material C: mixing nano silica gel powder and nano titanium dioxide according to a weight ratio of 1:1, which is materi...

Embodiment 2

[0025] A kind of anticorrosion coating for power cable, it is prepared according to the following method:

[0026] Step 1) Preparation of material A: sequentially add acrylic acid, N-methylpyrrolidone, polyoxyethylene lauryl ether, emulsified silicone oil and phthalate into the reactor, and stir at 1000 rpm for 5 minutes to obtain material A; Wherein, the weight ratio of acrylic acid, N-methylpyrrolidone, polyoxyethylene lauryl ether, emulsified silicone oil and phthalate is 10:6:5:3:1;

[0027] Step 2) Preparation of material B: send borax, white graphite and aluminum tripolyphosphate to a ball mill, grind to a powder with a particle size of 500 mesh, then mix the powder with sodium silicate evenly, which is material B; wherein, borax, sodium The weight ratio of water glass, white graphite and aluminum tripolyphosphate is 3:2:1:1;

[0028] Step 3) preparing material C: mixing nano silica gel powder and nano titanium dioxide according to a weight ratio of 1:1, which is materi...

Embodiment 3

[0033] Use the cable surface performance parameter determination of the anticorrosion paint prepared by embodiment 1 and embodiment 2, specifically refer to table 1:

[0034] Table 1

[0035]

[0036]

[0037] From the data in Table 1, it can be found that the anti-corrosion coatings prepared in Example 1 and Example 2 of the present invention have better performance, can effectively prevent the corrosion of acid-base salts, and have better high temperature resistance, flame retardancy and mechanical properties .

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Abstract

The invention belongs to the field of power materials and in particular discloses anticorrosive paint for power cables. The paint is prepared from crylic acid, N-methyl pyrrolidone, laurinol polyoxyethylene ether, silicone emulsion, phthalic acid ester, borax, sodium silicate, white graphite, tripolyphosphoric acid, nanosize silica powder and nano titanium dioxide. The paint is capable of effectively preventing acid-base salts from corroding power cables and is relatively good in high-temperature flame retardancy and mechanical property.

Description

technical field [0001] The invention belongs to the field of power materials, and relates to an anticorrosion coating for power cables. Background technique [0002] In the power supply system, the power cable is an important transmission line, which is made of one or more mutually insulated conductors and an outer insulation protection layer, and is used to transmit power or information from one place to another. Power cables are prone to aging, corrosion, and damage in outdoor environments, especially in hot and humid climates or areas with severe acid-base and salt effects, which can easily cause transmission line failures and bring more trouble to people's normal production and life. Large impact, but also cause greater losses to the power sector. Power cable anti-corrosion coatings are generally composed of tertiary acrylic emulsion water-based materials with various preservatives, plasticizers, etc. When the coating coating is subjected to corrosion conditions, it can...

Claims

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Application Information

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IPC IPC(8): C09D4/00C09D4/06C09D5/08C09D7/12H01B3/44
Inventor 何健解世政魏若琳李笃文
Owner STATE GRID CORP OF CHINA
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