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Solvent-free anti-pollution flashover organic silicon coating and preparation method thereof

An organic silicon coating, anti-pollution flashover technology, applied in coatings and other directions, can solve problems such as slow curing speed, and achieve the effects of excellent hydrophobicity, excellent self-cleaning, and excellent aging performance.

Active Publication Date: 2015-06-10
眉山拓利科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the first invention of the present invention is to provide a solvent-free anti-pollution flashover organic silicon for the current condensation-type RTV coatings, which have slow curing speed, self-condensation produces a certain amount of small molecule by-products, and the formula contains a large amount of organic solvents. RTV paint

Method used

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  • Solvent-free anti-pollution flashover organic silicon coating and preparation method thereof
  • Solvent-free anti-pollution flashover organic silicon coating and preparation method thereof
  • Solvent-free anti-pollution flashover organic silicon coating and preparation method thereof

Examples

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Effect test

Embodiment 1

[0046] This embodiment provides a solvent-free antifouling flashover silicone paint, which includes the following components:

[0047]Viscosity is 1500mPa.s, 100 parts of polydimethylsiloxane containing terminal vinyl group, its vinyl group directly linked to Si can be located at the two ends of the molecular chain or in the middle of the molecular chain, and its molecular structure can be as shown in (I) Show; Viscosity is 60mPa.s 1.5 parts of polydimethylsiloxane containing terminal silicon hydrogen group, its hydrogen atom that is directly connected with Si can be positioned at the two ends of molecular chain or in the middle of molecular chain, and its molecular structure can be as (II ) shown; the structure is Me 3 SiO(Me 2 SiO) 4 (MeHSiO) 6 SiMe 3 8.5 parts of polysiloxane; 15 parts of wet-process white carbon black, whose specific surface area is 190m 2 / g, with an average particle size of 10 μm; 10 parts of aluminum hydroxide, 10 parts of decabromodiphenyl ether; ...

Embodiment 2

[0063] This embodiment provides a solvent-free antifouling flashover silicone paint, which includes the following components:

[0064] The viscosity is 2000mPa.s, 100 parts of polydimethylsiloxane containing terminal vinyl groups, the vinyl groups directly connected to Si can be located at the two ends of the molecular chain or in the middle of the molecular chain, and its molecular structure can be as shown in (I) Show; Viscosity is 80mPa.s 1.0 parts of polydimethylsiloxane containing terminal silicon hydrogen group, its hydrogen atom that is directly connected with Si can be positioned at the two ends of molecular chain or in the middle of molecular chain, and its molecular structure can be as (II ) shown; the structure is Me 3 SiO(Me 2 SiO) 4 (MeHSiO) 6 SiMe 3 8.0 parts of polysiloxane; 15 parts of wet-process white carbon black, whose specific surface area is 190m 2 / g, the average particle size is 10 μm; 15 parts of aluminum hydroxide, 5 parts of decabromodiphenyl et...

Embodiment 3

[0074] This embodiment provides a solvent-free antifouling flashover silicone paint, which includes the following components:

[0075] Viscosity is 6000mPa.s, 100 parts of polydimethylsiloxane containing vinyl end; other components are the same as in Example 1.

[0076] The preparation method of the solvent-free anti-pollution flashover silicone coating described in this embodiment is the same as that in Example 1.

[0077] The one-component solvent-free anti-fouling flash silicone coating can be stored for 3 months at a low temperature of 0-5°C. Components A and B can be stored at room temperature for more than 12 months. Solvent-free antifouling anti-fouling silicone coating formulated with components A and B, with a working time of ≧8 hours at room temperature.

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Abstract

The invention discloses a solvent-free anti-pollution flashover organic silicon coating which comprises the following components in parts by weight: 100 parts of polysiloxane containing at least two silicon vinyl groups, 1-20 parts of polysiloxane containing at least two silicon oxygen groups, 5-25 parts of white carbon black, 10-40 parts of a flame-retardant filler, 10-35 parts of a vinyl-containing silicon resin, 2-8 parts of a water repellent, 0.1-10 parts of platinum catalyst and 1-5 parts of a tackifier, wherein the specific surface area of silica in the white carbon black is 150-250m<2> / g, and the average particle size does not exceed 20 microns. The invention also discloses a method for preparing the solvent-free anti-pollution flashover organic silicon coating. The method comprises the following steps: (a), preparing a basic sizing material and (b) mixing the glue; or (a) preparing a basic sizing material; (b), preparing a component A; (c) preparing a component B; and (d) mixing the glue. After being subjected to room temperature or medium temperature curing, the solvent-free anti-pollution flashover organic silicon coating is dried, fine, smooth and bright in surface and excellent in hydrophobic property and has excellent self-cleaning performance, and the surface rainwater and floating dust can be automatically flushed away. In addition, the solvent-free anti-pollution flashover organic silicon coating has excellent aging performance, mechanical properties, high / low-temperature resistance, arc resistance, electric insulation performance and the like.

Description

technical field [0001] The invention belongs to the technical field of organic silicon coatings, relates to a solvent-free anti-fouling flash organic silicon coating and a preparation method thereof, and belongs to the technical field of coatings for power transmission and transformation equipment in power systems. Background technique [0002] At present, the insulator materials used in power transmission and transformation equipment in the power system are basically glass or ceramics. Pollutant particles in the atmosphere can easily deposit on the surface of ceramics and glass to form a dirty layer. At the same time, humid atmosphere such as smog, rain and snow will form a water film on the surface of glass or ceramic insulators and dissolve the salt in the sediment, which will lead to uncontrolled local leakage and discharge, resulting in power transmission loss. When the amplitude of the leakage current increases, the local arc increases, and the arc length reaches a cri...

Claims

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Application Information

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IPC IPC(8): C09D183/07C09D183/05C09D7/12
Inventor 陶云峰张先银李强方辉陈群跃梁强宇
Owner 眉山拓利科技有限公司
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