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Hydrophobic coating for power transformation equipment and preparation method thereof

A technology for hydrophobic coatings and power transformation equipment, which is applied in the direction of anti-fouling/underwater coatings, anti-corrosion coatings, coatings, etc., which can solve the problems of low economic value, insufficient mechanical strength, and high production costs, and achieve improved waterproof and anti-fouling Good performance, good acid and alkali resistance, low surface energy

Active Publication Date: 2017-03-22
STATE GRID HENAN ELECTRIC ZHOUKOU POWER SUPPLY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still a certain distance for super-hydrophobic materials to be put into practical engineering. Some properties need to be improved. The main problem is that the mechanical strength is not enough and it is easy to wear. In addition, the production cost of super-hydrophobic materials is relatively high, and the economic value of use is not high.

Method used

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  • Hydrophobic coating for power transformation equipment and preparation method thereof
  • Hydrophobic coating for power transformation equipment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: A hydrophobic coating for electrical substation equipment, prepared from the following raw materials in parts by weight: 60 parts of methyltriethoxysilane, 28 parts of phosphate-modified acrylic emulsion, 15 parts of solvent, and 9 parts of filler , 5 parts of dispersant, 9 parts of film-forming agent.

[0028] Wherein, the solvent is hydrochloric acid solution;

[0029] The filler is a molecular sieve, and SiO in the molecular sieve 2 / Al 2 o 3 The molar ratio is 70.

[0030] The dispersant is a mixture of fatty alcohol polyoxyethylene ether and alkylsulfonate, and the weight ratio of fatty alcohol polyoxyethylene ether and alkylsulfonate is 2:1.

[0031] The film-forming agent is sodium polyacrylate.

[0032] A preparation method for a hydrophobic coating for electrical substation equipment, comprising the following steps:

[0033]Step S1: Weigh 60 parts by weight of methyltriethoxysilane, add dropwise a hydrochloric acid solution with a molar concent...

Embodiment 2

[0041] Example 2: A hydrophobic coating for power transformation equipment, prepared from the following raw materials in parts by weight: 55 parts of methyltriethoxysilane, 25 parts of phosphate-modified acrylic emulsion, 12 parts of solvent, and 8 parts of filler , 4 parts of dispersant, 8 parts of film-forming agent.

[0042] Wherein, the solvent is hydrochloric acid solution;

[0043] The filler is a molecular sieve, and SiO in the molecular sieve 2 / Al 2 o 3 The molar ratio is 50.

[0044] The dispersant is fatty alcohol polyoxyethylene ether sulfonate.

[0045] The film forming agent is polyvinyl alcohol.

[0046] A preparation method for a hydrophobic coating for electrical substation equipment, comprising the following steps:

[0047] Step S1: Weigh 55 parts by weight of methyltriethoxysilane, add dropwise a hydrochloric acid solution with a molar concentration of 0.02 mol / L to adjust the pH to 3.2, heat in an ultrasonic water bath for gelation reaction, and obtai...

Embodiment 3

[0053] Example 3: A hydrophobic coating for power transformation equipment, prepared from the following raw materials in parts by weight: 58 parts of methyltriethoxysilane, 30 parts of phosphate-modified acrylic emulsion, 15 parts of solvent, and 10 parts of filler , 6 parts of dispersant, 10 parts of film-forming agent.

[0054] Wherein, the solvent is an acetic acid solution; the filler is a molecular sieve, and SiO in the molecular sieve 2 / Al 2 o 3 The molar ratio is 30; the dispersant is fatty alcohol polyoxyethylene ether; the film-forming agent is sodium polyacrylate.

[0055] A preparation method for a hydrophobic coating for electrical substation equipment, comprising the following steps:

[0056] Step S1: Weigh 58 parts by weight of methyltriethoxysilane, add dropwise a hydrochloric acid solution with a molar concentration of 0.01 mol / L to adjust the pH to 3.6, heat in an ultrasonic water bath for gelation reaction, and obtain a sol;

[0057] Step S2: Add 6 parts...

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Abstract

The invention provides a hydrophobic coating for power transformation equipment and a preparation method thereof and belongs to the technical field of hydrophobic materials and a preparation method thereof. The hydrophobic coating for power transformation equipment is prepared from 50 to 70 parts by weight of methyltriethoxysilane, 20 to 40 parts by weight of a phosphate-modified acrylic emulsion, 10 to 18 parts by weight of a solvent, 5 to 12 parts by weight of a filler, 3 to 9 parts by weight of a dispersant and 5 to 12 parts by weight of a film-forming agent. The methyltriethoxysilane and the phosphate-modified acrylic emulsion as main raw materials are processed to form the hydrophobic coating with good hydrophobic performances by a sol-gel method. The surface energy of the hydrophobic coating is low, a static contact angle of a water droplet on the surface of the hydrophobic coating is 160 degrees or more, water resistance is good, the layering, shedding or blistering phenomenon after long-term use is avoided, and acid and alkali resistance is good. The hydrophobic coating is suitable as hydrophobic paint of electrical equipment and improves the waterproof and antifouling performances of the electrical equipment.

Description

technical field [0001] The invention belongs to the technical field of hydrophobic materials and their preparation, and in particular relates to a hydrophobic coating for power transformation equipment and a preparation method thereof. Background technique [0002] The development of my country's economy is inseparable from the development of the electric power industry. The development of the economy has gradually increased people's demand for the reliability of power supply in the power system. To obtain a reliable power supply system, it is first necessary to ensure the security of the power supply system. Power equipment is an important part of the power supply system, and its performance directly affects the safety and reliability of the power supply system. There are many ways to measure the performance of electrical equipment. Among them, electrical equipment needs to have good water resistance, that is, when water touches the surface of the equipment, it cannot easi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/00C09D7/12C09D5/16C09D5/08
CPCC08K2201/011C08L2201/10C08L2205/035C09D5/08C09D5/1662C09D5/1687C09D7/61C09D7/63C09D7/65C09D133/00C08L71/02C08L29/04C08L33/02C08K13/02C08K5/5419C08K3/346C08K3/36C08K2003/2227
Inventor 魏韬史宏伟张甲魏小宁程楠楠
Owner STATE GRID HENAN ELECTRIC ZHOUKOU POWER SUPPLY
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