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Insulating coating for high-voltage electrical equipment and preparation method thereof

A technology for insulating coatings and high-voltage electrical appliances, which can be used in anti-corrosion coatings, carboxyl rubber coatings, epoxy resin coatings, etc. It can solve the problems of high raw material costs, mediocre effects, and complicated preparation methods, and achieve strong hydrophobicity and large wetting angle. , Excellent insulation performance

Inactive Publication Date: 2018-11-20
HEFEI OUSHIJIA ELECTRICAL & MECHANICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above prior art has good insulation performance, it is generally effective in other properties, and its preparation method is relatively complicated, and the cost of raw materials is high, so it is not suitable for popularization and use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An insulating coating for high-voltage electrical equipment, comprising the following raw materials in parts by weight: 20 parts of fluorosiloxane polymer, 18 parts of nano-silicon dioxide, 17 parts of composite modified resin, 11 parts of aniline monomer, 13 parts of organic acid, 6 parts of polyvinyl alcohol, 5 parts of oxidizing agent, 8 parts of filler, 5 parts of curing agent, 8 parts of solvent and 10 parts of water.

[0031] A preparation method for insulating coatings for high-voltage electrical equipment, comprising the following preparation steps:

[0032] a. Mix the fluorosilicone polymer, nano-silica and solvent, introduce it into a mixer, and stir and react at 55°C at a speed of 200r / min for 1.2h to obtain a mixture 1;

[0033] b. Add composite modified resin and filler to mixture 1, introduce it into the internal mixer, banbury at 92°C for 1.5h, after the reaction is over, cool to room temperature, then add polyvinyl alcohol, and disperse under ultrasonic ...

Embodiment 2

[0043] An insulating coating for high-voltage electrical equipment, comprising the following raw materials in parts by weight: 22 parts of fluorosiloxane polymer, 18 parts of nano-silicon dioxide, 17 parts of composite modified resin, 13 parts of aniline monomer, 9 parts of organic acid, 6 parts of polyvinyl alcohol, 5 parts of oxidizing agent, 11 parts of filler, 5 parts of curing agent, 6 parts of solvent and 13 parts of water.

[0044] A preparation method for insulating coatings for high-voltage electrical equipment, comprising the following preparation steps:

[0045] a. Mix the fluorosilicone polymer, nano-silica and solvent, introduce it into a mixer, and stir and react at 55°C at a speed of 200r / min for 1.2h to obtain a mixture 1;

[0046] b. Add composite modified resin and filler to mixture 1, introduce it into the internal mixer, and banbury at 92°C for 1 hour. After the reaction is completed, cool to room temperature, then add polyvinyl alcohol, and place it under ul...

Embodiment 3

[0056] An insulating coating for high-voltage electrical equipment, comprising the following raw materials in parts by weight: 21 parts of fluorosilicone polymer, 19 parts of nano-silicon dioxide, 18 parts of composite modified resin, 12 parts of aniline monomer, 12 parts of organic acid, 5 parts of polyvinyl alcohol, 4 parts of oxidizing agent, 10 parts of filler, 4 parts of curing agent, 7 parts of solvent and 12 parts of water.

[0057] A preparation method for insulating coatings for high-voltage electrical equipment, comprising the following preparation steps:

[0058] a. Mix the fluorosiloxane polymer, nano-silica and solvent, introduce it into a mixer, and stir and react at a speed of 200r / min at 50°C for 0.8h to obtain a mixture 1;

[0059] b. Add composite modified resin and filler to mixture 1, introduce it into the internal mixer, and banbury at 88°C for 1.5h. After the reaction, cool to room temperature, then add polyvinyl alcohol, and disperse under ultrasonic for...

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PUM

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Abstract

The invention provides an insulating coating for high-voltage electrical equipment and a preparation method thereof. The insulating coating comprises the following components: a fluorosiloxane polymer, nano-silica, composite modified resin, an aniline monomer, organic acid, polyvinyl alcohol, an oxidant, filler, a curing agent, a solvent and water. The coating provided by the invention has excellent insulation performance, strong hydrophobicity, large wetting angle and low adhesion to dust and oil pollution, realizes low adhesion and non-penetration to pollutants such as water, steam and ash,and avoids the adverse effects of such substances on corona suppression, insulation, corrosion and so on.

Description

technical field [0001] The invention belongs to the technical field of insulating materials, and in particular relates to an insulating coating for high-voltage electrical equipment and a preparation method thereof. Background technique [0002] The surface insulation coating is a functional coating applied on the surface of the generator stator, rotor, and casing. In addition to good insulation performance, it should also have excellent "three-proof" functions, that is, excellent anti-salt spray, anti-humidity and heat and anti-mold properties. [0003] Motors characterized by high power and high voltage have been widely used in various industrial fields such as wind power, water conservancy, thermal power, large-scale power traction systems, and ultra-high voltage transmission and transformation systems. Since high-power generators have the characteristics of large unit capacity (up to megawatt level or above) and high insulation level requirements, higher requirements ar...

Claims

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Application Information

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IPC IPC(8): C09D183/08C09D163/00C09D113/00C09D5/08C09D5/25C09D7/61C09D7/20
CPCC09D183/08C08K2201/011C08L2205/035C09D5/00C09D5/08C09D7/20C09D7/61C08L63/00C08L13/00C08L29/04C08L79/02C08K3/36
Inventor 孔令翠
Owner HEFEI OUSHIJIA ELECTRICAL & MECHANICAL EQUIP CO LTD
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