Self-spraying type silica gel insulation paint and manufacturing technology thereof

A production process, silicone rubber insulation technology, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of easy clogging of the nozzle, coating gel, short storage period, etc., to improve insulation and flame retardancy, high-efficiency water absorption, The effect of extending storage life

Inactive Publication Date: 2015-11-11
FUJIAN RUISEN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the problems of self-spraying silicone rubber insulating coatings are as follows: ①The coating gels, and the storage period is short, generally less than 3 months; ②The nozzle is easily blocked, and the waste is serious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Prepare materials according to the following ratios by weight: 20 parts of α, ω-terminated hydroxyl polydimethylsiloxane (20000mpa.s); 5 parts of nano-silica; 2 parts of aluminum oxide, and 5 parts of decabromodiphenylethane; 1 part of anhydrous calcium chloride; 0.01 part of butanone oxime; 0.5 part of ethyl orthosilicate; 0.1 part of epoxypropyltrimethoxysilane; 0.1 part of dioctyltin dilaurate; 40 parts of a fluoromethane.

[0022] The specific production process is as follows:

[0023] (1) Separately bake nano-silica, alumina, decabromodiphenylethane, and anhydrous calcium chloride at 160°C for 4 hours to remove moisture;

[0024] (2), sequentially mix α, ω-terminated hydroxyl polydimethylsiloxane and rice silica, alumina, decabromodiphenylethane, anhydrous chlorine after drying in step (1) Calcium chloride is added to a vacuum mixer to fully stir into a mixture and then vacuumized, water molecules and small molecules can be removed by vacuuming;

[0025] (3) Und...

Embodiment 2

[0029] Prepare materials according to the following parts by weight: 30 parts of α, ω-terminated hydroxyl polydimethylsiloxane (50000mpa.s); 1 part of nano-silica; 10 parts of quartz powder, 5 parts of zinc borate; 3 parts of molecular sieve; toluene 0.1 part of diisocyanate; 1 part of vinyl butanone oximino silane; 0.5 part of acryloxypropyl trimethoxysilane; 0.5 part of tributyl titanate; 20 parts of tetrachloroethylene; 20 parts of trichlorofluoromethane .

[0030] The manufacture technology of self-spraying type silicone rubber insulating coating comprises the following steps:

[0031] (1) Separately bake nano-silica, quartz powder, zinc borate, and molecular sieve at 180°C for 3.5 hours to remove moisture;

[0032] (2) Add α, ω-terminated hydroxyl polydimethylsiloxane and nano-silica, quartz powder, zinc borate, and molecular sieve after step (1) toasted and dehydrated into a vacuum mixer in order to fully stir Vacuum after the mixture is formed, water molecules and sma...

Embodiment 3

[0037] Prepare materials according to the following parts by weight: 25 parts of α, ω-terminated hydroxyl polydimethylsiloxane (30000mpa.s); 3 parts of nano-silica; 2 parts of nano-calcium carbonate, and 3 parts of decabromodiphenylethane; 3 parts of zeolite; 0.5 part of hexamethyldisilazane; 0.8 part of vinyl butanone oximino silane; 0.3 part of aminopropyltrimethoxysilane; 0.3 part of tetraisobutyl titanate; 25 parts of tetrachloroethylene; 30 parts of difluoromethane.

[0038] The manufacture technology of self-spraying type silicone rubber insulating coating comprises the following steps:

[0039] (1) Separately bake nano-silica, nano-calcium carbonate, decabromodiphenylethane, and zeolite at 200°C for 3.8 hours to remove water;

[0040] (2), sequentially add α, ω-terminated hydroxyl polydimethylsiloxane, nano-silica, nano-calcium carbonate, decabromodiphenylethane, and zeolite after step (1) is baked and dehydrated The vacuum mixer is fully stirred into a mixture and th...

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PUM

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Abstract

The invention relates to a self-spraying type silica gel insulation paint. The paint is composed of hydroxy-terminated polysiloxane, nano white carbon black, a filling material, an adsorbent, an activator, a crosslinking agent, a coupling agent, a catalyst, a solvent, and a propellant. The added adsorbent can absorb the water to form crystal water, wherein the water exists in the air, which is mixed into the paint during the processing process, solvent, or propellant; thus the crosslinking agent in the tank will not carry out hydrolysis, and the vulcanization and gelation of paint is avoided. The added activator can diffuse to the paint surface at first and carry out reactions with water in the self-spray tank to remove the water; thereby the storage period of the paint in a self-spray tank is effectively prolonged, and the storage period can last at least one year. The provided paint has a self-spray function, the small-package design makes the construction be more flexible and convenient, the operation difficulty in the field and high altitude is alleviated, human resources, material resources, and financial resources are greatly saved, and the construction cost is reduced. The invention also discloses a manufacturing technology of the self-spraying type silica gel insulation paint.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a self-spraying silicone insulating coating and a manufacturing process thereof. Background technique [0002] In recent years, silicone rubber insulating coatings have been widely used in the power industry and electronics industry, especially silicone rubber insulating coatings have excellent insulation, high voltage resistance, water repellency and aging resistance, and are used in the anti-pollution flashover of power transmission and transformation equipment. It plays an important role and becomes the first choice coating for the protection of power transmission and transformation equipment. However, due to the influence of climate and environmental factors, some parts of the silicone rubber insulating coating that have been running for a long time may experience aging and anti-pollution flashover failures. It is necessary to repair or refurbish these coatings in time. At present, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/00C09D4/02C09D4/06C09D5/25C09D5/08C09D7/12
Inventor 陆志军
Owner FUJIAN RUISEN CHEM
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