Fluorinated silicone rubber anti-pollution flashover coating for extra-high voltage and preparation method thereof

An anti-pollution flashover coating, fluorosilicone rubber technology, applied in the direction of coating, can solve the problems of low flame retardant level, difficult to reach FV-0 level, unable to meet the requirements of hydrophobicity, etc., to improve mechanical properties. , excellent hydrophobicity and anti-pollution flashover ability, the effect of anti-pollution flashover voltage increase

Active Publication Date: 2009-12-09
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Before the present invention was proposed, the publication number: CN 1321712A "An RTV single-component hydrophobic long-lasting anti-fouling flashover coating", the coating added a small amount of single basic flame retardant, less than 40% of the solid content of the coating, The flame retardant level is very low, and it is difficult to reach the FV-0 level
[0008] In addition, the publication number: CN 1847339A "Preparation method of anti-fouling flashover coating", the coating uses silicone rubber as the main material, and the hydrophobic angle is 114°. Although the hydrophobicity meets the DL / T627-2004 standard, it cannot meet the requirements of UHV power transmission and transformation. and anti-icing requirements for hydrophobicity

Method used

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  • Fluorinated silicone rubber anti-pollution flashover coating for extra-high voltage and preparation method thereof

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Effect test

Embodiment 1

[0032] Nanoscale fumed silica (specific surface area 200m 2 / g), aluminum hydroxide, decabromodiphenyl ether, and iron red pigment were dried at 100°C for 24 hours; fluorosilicone rubber (viscosity 5500mPa s) 10, silicone rubber (viscosity 4500mPa s) 30, nanoscale gas phase Add white carbon black 6 to the CH tank mixer, take it out after stirring for 60 minutes; put it into a vacuum stirring reactor, and vacuumize it for 3 hours while stirring, the vacuum degree is -0.08MPa; take out the slurry and put it into a high shear disperser Add the solvent haloalkane 45 and disperse at a low speed for 20 minutes; aluminum hydroxide 4, decabromodiphenyl ether 1, antioxidant tert-butylhydroquinone 0.06, leveling agent 3, pigment iron red 0.3 slowly add to the stirring slurry , stirring for 3 hours; grinding for 2 hours; under the protection of nitrogen, add defoamer 0.2, catalyst dibutyltin dilaurate 0.04, and stir for 1 hour; take out the slurry and put it into an explosion-proof high-...

Embodiment 2

[0034] Nanoscale fumed silica (specific surface area 200m 2 / g), aluminum hydroxide, decabromodiphenyl ether, and iron red pigment were dried at 100°C for 24 hours; fluorosilicone rubber (viscosity 5500mPa s) 10, silicone rubber (viscosity 4500mPa s) 25, nanoscale gas phase Add white carbon black 6 to the CH tank mixer, take it out after stirring for 60 minutes; put it into a vacuum stirring reactor, and vacuumize it for 3 hours while stirring, the vacuum degree is -0.08MPa; take out the slurry and put it into a high shear disperser Add the solvent haloalkane 50 and disperse at a low speed for 20 minutes; aluminum hydroxide 4, decabromodiphenyl ether 1, antioxidant tert-butylhydroquinone 0.06, leveling agent 3, pigment iron red 0.3 slowly add to the stirring slurry , stirring for 3 hours; grinding for 2 hours; under the protection of nitrogen, add defoamer 0.2, catalyst dibutyltin dilaurate 0.04, and stir for 1 hour; take out the slurry and put it into an explosion-proof high-...

Embodiment 3

[0036] Nanoscale fumed silica (specific surface area 200m 2 / g), aluminum hydroxide, decabromodiphenyl ether, and iron red pigment were dried at 100°C for 24 hours; fluorosilicone rubber (viscosity 5500mPa s) 5, silicone rubber (viscosity 4500mPa s) 25, nanoscale gas phase Add white carbon black 8 to the CH tank mixer, take it out after stirring for 60 minutes; put it into the vacuum stirring reactor, and vacuumize it for 3 hours while stirring, the vacuum degree is -0.08MPa; take out the slurry, put it into the high shear dispersion In the machine, add solvent haloalkane 55 and stir at low speed for 20 minutes; aluminum hydroxide 3, decabromodiphenyl ether 1, antioxidant tert-butyl hydroquinone 0.06, leveling agent 2, pigment iron red 0.3 slowly add to the stirring Slurry, stirring time 3 hours; grinding 2 hours; under the protection of nitrogen, add defoamer 0.2, catalyst dibutyltin dilaurate 0.04, stir for 1 hour; take out the slurry and put it into an explosion-proof high-...

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Abstract

The invention provides a fluorinated silicone rubber anti-pollution flashover coating for extra-high voltage and a preparation method thereof; the fluorinated silicone rubber anti-pollution flashover coating (short for FRTV) has the following compositions by mass percent: 5-30 percent of fluorinated silicone rubber, 10-30 percent of silicon rubber, 4-8 percent of nanometer grade gas-phase white carbon black, 0.5-8 percent of compound fire retardants, 0.2-0.5 percent of firming agent, 0.01-0.05 percent of catalyst, 0.02-0.08 percent of antioxidant, 2-8 percent of flatting agents, 0.2-0.4 percent of de-foaming agent, 0.1-0.5 percent of paint and 30-60 percent of solvent. The compound fire retardant is composed of inorganic aluminium hydroxide and organic decabromodiphenyl oxide, wherein comprising 1-6 percent of the inorganic aluminium hydroxide and 0.5-3 percent of the organic decabromodiphenyl oxide. The preparing process of the coating is simple, and the coating has good weather ability, oil resistance and longer service life.

Description

technical field [0001] The invention provides a fluorosilicone rubber long-acting anti-pollution flashover coating for UHV (hereinafter referred to as FRTV coating) and a preparation method thereof, which is applied to UHV substations and UHV line external insulation equipment, and belongs to the field of UHV external insulation antifouling . technical background [0002] my country has a vast territory, and energy resources are mostly distributed in the central, western and northern regions, while loads are mostly distributed in the eastern and southern regions. The biggest feature of the UHV power grid is large capacity and long-distance power transmission, which can realize a wide range of optimal allocation of energy resources and ensure reliable power supply. The State Grid Corporation of China takes the development goal of accelerating the construction of a strong and smart grid in combination with the national conditions of the country, and builds the UHV grid as the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/06C09D7/12C09D5/00
Inventor 杜忠东袁明仁谭进查宜萍郑志强叶春勇刘江钒董中强
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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