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Sound-insulation and vibration-reduction water-based paint for transformer and preparation method thereof

A technology for water-based coatings and transformers, applied in anti-corrosion coatings, fire-resistant coatings, polyurea/polyurethane coatings, etc., can solve the problems affecting the reliability of oil-immersed transformers, and achieve excellent salt spray resistance and excellent corrosion resistance.

Active Publication Date: 2022-05-13
YUANGAO CHANGSHA NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It greatly affects the reliability of long-term operation of oil-immersed transformers

Method used

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  • Sound-insulation and vibration-reduction water-based paint for transformer and preparation method thereof
  • Sound-insulation and vibration-reduction water-based paint for transformer and preparation method thereof
  • Sound-insulation and vibration-reduction water-based paint for transformer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] 1. A self-made water-based bisphenol S epoxy emulsion, the formula is as follows

[0096] Table 1 Example 1 Self-made water-based bisphenol S epoxy emulsion formula

[0097]

[0098] 2. The preparation method is as follows:

[0099] (1) Put the bisphenol S epoxy resin into the 1# reactor, and raise the temperature to 165°C at a rate of 5°C / min. Turn on stirring until it melts. Add mixed solvent 1# (tripropylene glycol methyl ether: propylene glycol phenyl ether = 6:4) slowly to dissolve the bisphenol S epoxy resin into a clear yellowish liquid. Cool down to 80°C at a rate of 10°C / min, and stir to fully dissolve. Obtain bisphenol S epoxy resin solution.

[0100] (2) Put the mixed solvent 2# (xylene: butyl acetate = 5:5) into the 2# reactor, heat up to 110° C. and reflux for dehydration for 2 hours. Add 2-tert-butylhydroquinone and stir evenly. Slowly add acrylic acid (AA), n-butyl methacrylate (n-BMA), hydroxyethyl acrylate (HEA) vinyl tert-carbonate ( VV-10), ...

Embodiment 2

[0108] 1. A water-based coating for sound insulation and vibration reduction for transformers, the formula is as follows:

[0109] Table 3 embodiment 2 transformer is used the formula of water-based paint for sound insulation and vibration reduction

[0110]

[0111]

[0112] 2. The preparation method is as follows

[0113] (1), filler slurry dispersion and grinding

[0114] Put the No. 1-3 materials into the stirring tank (tank) in order, and stir at a low speed (200rpm-300rpm) for 10min. Continue to put in materials No. 4-13, and stir at high speed (800rpm-1000rpm) for 30min-40min until the material has no visible coarse particles; transfer to the grinding process, use a three-roller to grind to a fineness of ≤80μm, and filter out with an 80-mesh filter material to obtain filler slurry.

[0115] (2), A component paint letdown stage

[0116] Put No. 1 material (filler slurry) into the dispersion tank, start stirring, adjust the stirring rate to the range of 500rpm-6...

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PUM

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Abstract

The invention discloses a water-based bisphenol S epoxy emulsion and a sound insulation and vibration reduction water-based paint for a transformer prepared from the water-based bisphenol S epoxy emulsion. The water-based bisphenol S epoxy emulsion is an emulsion synthesized by two or more olefine acid monomers and bisphenol S epoxy resin, wherein the olefine acid monomer is selected from acrylic acid, n-butyl methacrylate, hydroxyethyl acrylate, vinyl versatate and ethyl acetoacetate methacrylate; the epoxy equivalent of the bisphenol S epoxy resin is 200 to 300 g / eq; the weight ratio of the olefine acid monomer to the bisphenol S epoxy resin is (2-3): 1. The composite loss factor of the sound-insulation and vibration-reduction water-based paint is larger than or equal to 0.05, 120 DEG C kerosene steam can be resisted for 24 h without abnormity, 100 DEG C transformer oil can be resisted for 168 h or longer, neutral salt mist can be resisted for 1000 h, saline water can be resisted for 60 d without abnormity, acid and alkali can be resisted for 168 h without abnormity, the volume resistivity is larger than or equal to 1.0 * 10 < 13 > omega.m, and the electric strength is larger than or equal to 40 KV / mm.

Description

technical field [0001] The invention relates to a sound-insulating and vibration-damping water-based paint for a transformer and a preparation method thereof. Background technique [0002] At present, the large oil-immersed transformers used in the power transmission and transformation industry are caused by the vibration of the iron core caused by the magnetostriction of the silicon steel sheets of the transformer body, and the electromagnetic attraction caused by magnetic flux leakage at the joints of the silicon steel sheets and between the laminations. The vibration of the iron core, when there is a complex current passing through the winding, the leakage flux generated by the load current causes the vibration of the coil and the wall of the oil tank, and other factors, as well as the resonance factors generated by each part of the transformer. As a result, the transformer generates large noise and vibration during operation. It has caused damage to the environment and ...

Claims

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Application Information

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IPC IPC(8): C08G81/02C09D187/00C09D175/08C09D157/02C09D175/04C09D5/08C09D7/61
CPCC08G81/024C09D187/005C09D175/04C09D5/08C09D5/084C09D5/086C09D5/18C09D7/61C09D7/70C08K2003/2227C08L2201/08C08L75/08C08L57/02C08K3/34C08K3/22C08K9/00C08K5/32C08K7/24
Inventor 邓强范威丽
Owner YUANGAO CHANGSHA NEW MATERIALS
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