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High-temperature-resistant coating for transformer and preparation method thereof

A technology for high-temperature-resistant coatings and transformers, applied in the field of coatings, can solve the problems of insufficient high-temperature resistance of anti-corrosion coatings, and achieve excellent flame-retardant ability, simple preparation method, and long service life.

Inactive Publication Date: 2017-09-26
HEFEI TONGYOU ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The outer wall paint of power station transformers has excellent weather resistance, which can effectively improve protection, prolong the service life of equipment, reduce maintenance costs, power failure losses, and improve power transmission efficiency; however, the high temperature resistance of the anti-corrosion paint is insufficient and needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of high-temperature-resistant coating for transformers of the present embodiment includes the following raw materials in parts by weight:

[0028] 52 parts of bisphenol A novolac epoxy resin, 23 parts of brominated epoxy resin, 5 parts of graphite fiber, 6 parts of melamine cyanurate, 18 parts of quartz powder, 5 parts of zinc borate, 15 parts of modified aluminum hydroxide, titanium dioxide 3 parts, 1 part of polyethylene glycol fatty acid ester, 1 part of hydroxyethyl cellulose, 2 parts of defoaming agent, 6 parts of dispersant, 0.1 part of ultraviolet absorber, 12 parts of ethylene glycol, appropriate amount of water.

[0029] In this embodiment, the graphite fiber has a length of 0.1 mm and a diameter of 0.05 mm; the meshes of the quartz powder, zinc borate and titanium dioxide are 500 mesh.

[0030] In this example, the preparation method of modified aluminum hydroxide is: adding 2% of its weight of alkyl glycoside, 3% of acetyl tri-n-hexyl citrate and 4% of...

Embodiment 2

[0041] A kind of high-temperature-resistant coating for transformers of the present embodiment includes the following raw materials in parts by weight:

[0042] 55 parts of bisphenol A novolac epoxy resin, 25 parts of brominated epoxy resin, 7 parts of graphite fiber, 7 parts of melamine cyanurate, 21 parts of quartz powder, 6 parts of zinc borate, 16 parts of modified aluminum hydroxide, titanium dioxide 4 parts, 2 parts of polyethylene glycol fatty acid ester, 1.5 parts of hydroxyethyl cellulose, 3 parts of defoaming agent, 7 parts of dispersant, 0.5 part of ultraviolet absorber, 14 parts of ethylene glycol, appropriate amount of water.

[0043] In this embodiment, the graphite fiber has a length of 0.15 mm and a diameter of 0.07 mm; the meshes of the quartz powder, zinc borate and titanium dioxide are 500 mesh.

[0044] In this example, the preparation method of modified aluminum hydroxide is: adding 2% of its weight of alkyl glycoside, 3% of acetyl tri-n-hexyl citrate and ...

Embodiment 3

[0055] A kind of high-temperature-resistant coating for transformers of the present embodiment includes the following raw materials in parts by weight:

[0056] 58 parts of bisphenol A novolac epoxy resin, 27 parts of brominated epoxy resin, 9 parts of graphite fiber, 8 parts of melamine cyanurate, 24 parts of quartz powder, 7 parts of zinc borate, 17 parts of modified aluminum hydroxide, titanium dioxide 5 parts, 3 parts of polyethylene glycol fatty acid ester, 2 parts of hydroxyethyl cellulose, 4 parts of defoaming agent, 8 parts of dispersant, 0.8 part of ultraviolet absorber, 15 parts of ethylene glycol, appropriate amount of water.

[0057] In this embodiment, the graphite fiber has a length of 0.2 mm and a diameter of 0.08 mm; the meshes of the quartz powder, zinc borate and titanium dioxide are 500 mesh.

[0058] In this example, the preparation method of modified aluminum hydroxide is: adding 2% of its weight of alkyl glycoside, 3% of acetyl tri-n-hexyl citrate and 4% ...

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Abstract

The invention discloses a high-temperature-resistant coating for a transformer, and belongs to the technical field of coatings. The high-temperature-resistant coating for the transformer comprises the following raw materials in parts by weight: 52 to 58 parts of bisphenol A novolac epoxy resin, 23 to 27 parts of brominated epoxy resin, 5 to 9 parts of graphite fiber, 6 to 8 parts of melamine cyanurate, 18 to 24 parts of quartz powder, 5 to 7 parts of zinc borate, 15 to 17 parts of modified aluminium hydroxide, 3 to 5 parts of titanium dioxide, 1 to 3 parts of polyethylene glycol aliphatic ester, 1 to 2 parts of hydroxyethyl cellulose, 2 to 4 parts of an antifoaming agent, 6 to 8 parts of a dispersing agent, 0.1 to 0.8 part of an ultraviolet light absorber, 12 to 15 parts of ethylene glycol and an appropriate amount of water. The invention also discloses a preparation method for the high-temperature-resistant coating for the transformer. The high-temperature-resistant coating is easy to prepare, high in strength, high in adhesion capacity, weather-resistant, corrosion-resistant, and long in service life, and has excellent high temperature resistance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high-temperature-resistant coating for transformers and a preparation method thereof. Background technique [0002] Transformer is a device that uses the principle of electromagnetic induction to change AC voltage. The main components are primary coil, secondary coil and iron core (magnetic core). The main functions are: voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer), etc. According to the purpose, it can be divided into: power transformers and special transformers (electric furnace transformers, rectifier transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers , reactors, transformers, etc.). [0003] Trans...

Claims

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Application Information

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IPC IPC(8): C09D163/04C09D163/00C09D5/18C09D5/08C09D7/12
CPCC09D163/04C08K2003/2227C08K2003/2241C08K2003/387C08L2201/02C08L2201/08C08L2203/20C08L2205/02C08L2205/035C09D5/08C09D5/18C08L63/00C08L71/02C08L1/284C08K13/06C08K9/04C08K7/06C08K3/38C08K3/22C08K5/053C08K5/34928
Inventor 李丹丹
Owner HEFEI TONGYOU ELECTRONICS TECH CO LTD