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Anti-pollution flashover coating

An anti-pollution flashover coating, technology in parts by weight, applied in the direction of coating, etc., can solve the problems of short service life of coating, poor adhesion, comprehensive performance of coating can not meet the needs of ultra-high voltage power engineering development, etc., to improve pollution Effect of lightning voltage, good self-cleaning and weather resistance

Active Publication Date: 2014-08-06
WUXI HUADONG ZINDN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current anti-fouling flashover coatings have problems such as short coating life and poor adhesion, and the comprehensive performance of coatings cannot meet the needs of further development of ultra-high voltage power engineering.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The antifouling flashover coating of the present embodiment comprises following components

[0026] Modified silicone resin 15 parts

[0027] Nano white carbon black 1 part

[0028] 5 parts mica powder

[0029] Aluminum hydroxide 5 parts

[0030] Nano polytetrafluoroethylene powder 15 parts

[0031] Titanium dioxide 1 part

[0032] Catalyst 0.1 part

[0033] 20 parts of solvent.

[0034] The preparation steps of the modified silicone resin described therein are as follows:

[0035] 1. Preparation of silanol

[0036] Add 15g of methyltrichlorosilane, 25g of phenyltrichlorosilane, 20g of diphenyldichlorosilane, and 90g of xylene into a four-neck flask, stir evenly and raise the temperature to 60°C to keep a constant temperature, and evenly add 25g of Deionized water, pay attention to stirring evenly during the dropwise addition, keep warm for 4 hours after the dropwise addition, and then wash with water to obtain a transparent silanol solution;

[0037] 2. Synthe...

Embodiment 2

[0042] The antifouling flashover coating of the present embodiment comprises following components

[0043] Modified silicone resin 20 parts

[0044] Nano white carbon black 6 parts

[0045] 7.5 parts of mica powder

[0046] Aluminum hydroxide 7.5 parts

[0047] 17.5 parts of nano-polytetrafluoroethylene powder

[0048] Titanium dioxide 1.5 parts

[0049] Catalyst 0.5 parts.

[0050] The preparation steps of the modified silicone resin described therein are as follows:

[0051] 1. Preparation of silanol

[0052] Add 25g of methyltrichlorosilane, 30g of phenyltrichlorosilane, 30g of diphenyldichlorosilane, and 100g of xylene into the four-neck flask, stir evenly and raise the temperature to 70°C to maintain a constant temperature, and drop evenly with a dropping funnel 30g of deionized water, pay attention to stirring evenly during the dropwise addition, keep warm for 4 hours after the dropwise addition, and then wash with water to obtain a transparent silanol solution; ...

Embodiment 3

[0058] The antifouling flashover coating of the present embodiment comprises following components

[0059] Modified silicone resin 25 parts

[0060] Nano white carbon black 12 parts

[0061] Mica powder 10 parts

[0062] Aluminum hydroxide 10 parts

[0063] Nano polytetrafluoroethylene powder 20 parts

[0064] Titanium dioxide 2 parts

[0065] Catalyst 1 part

[0066] 30 parts of solvent.

[0067] The preparation steps of the modified silicone resin described therein are as follows:

[0068] 1. Preparation of silanol

[0069] Add 20g of methyltrichlorosilane, 35g of phenyltrichlorosilane, 25g of diphenyldichlorosilane, and 105g of xylene into a four-neck flask, stir evenly and raise the temperature to 80°C to keep the constant temperature, and drop 40g of Deionized water, pay attention to stirring evenly during the dropwise addition, keep warm for 4 hours after the dropwise addition, and then wash with water to obtain a transparent silanol solution;

[0070] 2. Synthe...

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Abstract

The invention discloses an anti-pollution flashover coating. The coating comprises the following components in parts by weight: 15-25 parts of modified silicone resin, 1-12 parts of nano white carbon black, 5-10 parts of mica powder, 5-10 parts of aluminium hydroxide, 15-20 parts of nano polytetrafluoroethylene micro powder, 1-2 parts of titanium dioxide and 0.1-1 part of catalyst. The coating has the advantages that the coating is formed by adopting an interpenetrating polymer network structure; by utilizing excellent anti-static adsorbability and hydrophobicity of fluoride materials and excellent hydrophobicity of silicone materials, the adsorption effects of the surface of the coating on water drops, dust and charged particles are obviously reduced; the coating has good self-cleaning property and weatherability, effectively achieves the aims of long-term pollution flashover and icing prevention of power systems, can increase the pollution flashover voltages of porcelain insulators and is beneficial for improving the reliability of transmission line operation and lengthening the normal operation cycle.

Description

technical field [0001] The invention belongs to the technical field of chemical coatings, and in particular relates to an anti-fouling flashover coating applied to the surface of an insulating layer of high-voltage power transmission and transformation equipment and a preparation method thereof. Background technique [0002] With the sharp increase in my country's demand for electricity, higher requirements have been placed on the level of pollution external insulation of AC and DC high-voltage power transmission and transformation equipment. Anti-fouling flashover coatings are widely used in high-voltage power transmission and transformation equipment, and have a positive anti-fouling flashover effect. The anti-fouling flashover coating formula is different, its anti-adhesiveness, hydrophobicity, insulation and flame retardancy are very different, its ability to resist erosion from different pollution sources and the durability of anti-fouling flashover are also very differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/04C09D127/18C09D7/12
Inventor 杨志华吴祥禇路轩孟庆志
Owner WUXI HUADONG ZINDN TECH
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