Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Novel anti-pollution flashover coating for ultra and super high voltage insulator

A technology for antifouling flashover coatings and insulators, applied in antifouling/underwater coatings, fireproof coatings, coatings, etc., can solve the problems of uneven dispersion of added particles, poor mechanical properties, and failure to perform, so as to reduce surface tension and The effect of surface free energy, improving the level of external insulation, and increasing the degree of dispersion

Active Publication Date: 2015-11-25
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
View PDF3 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the difference in anti-fouling flashover coating formula, preparation process and filler treatment will seriously affect its hydrophobicity, pollution pressure resistance level, service life and other properties.
[0003] At present, the room temperature vulcanized silicone rubber anti-fouling flashover coatings coated on the surface of insulators generally have insufficient hydrophobicity, rapid loss of hydrophobicity, uneven dispersion of added particles, and serious agglomeration, resulting in failure to play their role, poor adhesion, and easy shelling during use. , spalling, poor mechanical properties, short life, etc., seriously restrict its development and application, and can no longer meet the anti-pollution flashover performance requirements of UHV and EHV transmission lines.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A new type of high-performance antifouling flashover paint formulation, the components are as follows:

[0037] Room temperature vulcanized silicone rubber 50%; titanate coupling agent 10%; composite flame retardant 3%; modified composite reinforcing agent 14%; nano-TiO 2 3%; surfactant 0.8%; hexamethyldisilazane 3%; defoamer 0.3%; catalyst 0.3%; crosslinking agent 0.4%; the rest is xylene.

[0038]The composite flame retardant is a mixture of nano-alumina and decabromodiphenyl ether with a mass ratio of 10:1.

[0039] Described tensio-active agent is sodium laurate, and described defoamer is organosilicon 100#, and described catalyzer is dibutylhexyltin dilaurate, and described linking agent is methyl tributylketoxime base silane, described The solvent is xylene.

[0040] The modified composite reinforcing agent is nano-SiO 2 with Micron CaCO 3 The mixture, its mass ratio is 1:6, and its preparation steps are as follows:

[0041] 1. Modified SiO 2 preparation of ...

Embodiment 2

[0049] The preparation method of the novel anti-pollution flashover coating for special and ultra-high voltage insulators is the same as in Example 1, except that the weight percentages of the raw materials are as follows: 40% of room temperature vulcanized silicone rubber; 5% of titanate coupling agent; composite flame retardant 2%; modified composite reinforcing agent 5%; nano-TiO 2 2%; surfactant 0.5%%; hexamethyldisilazane 1%%; defoamer 0.2%; catalyst 0.3%; crosslinking agent 0.3%; the rest is solvent.

Embodiment 3

[0051] The preparation method of the novel anti-pollution flashover coating for special and ultra-high voltage insulators is the same as in Example 1, except that the weight percentages of the raw materials are as follows: room temperature vulcanized silicone rubber 45%; titanate coupling agent 8%; composite flame retardant 2%; modified composite reinforcing agent 12%; nano-TiO 2 2%; surfactant 0.5%; hexamethyldisilazane 1%; defoamer 0.3%; catalyst 0.3%; crosslinking agent 0.4%; the rest is solvent.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Dielectric strengthaaaaaaaaaa
Volume resistivityaaaaaaaaaa
Shear strengthaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of functional coatings and particularly relates to a novel anti-pollution flashover coating for an ultra and super high voltage insulator. The novel anti-pollution flashover coating comprises, by mass, 40%-50% of room temperature vulcanized silicone rubber, 5%-10% of titanate coupling agent, 2%-6% of composite fire retardant, 5%-12% of modified composite reinforcing agent, 2%-4% of nano TiO2, 0.5%-1% of surface active agent, 1%-5% ofhexamethyldisilazane, 0.2%-0.5% of antifoaming agent, 0.3%-0.6% of catalyst, 0.3%-0.6% of cross-linking agent and the balance solvent. The prepared anti-pollution flashover coating is sprayed on the surface of the cleaned ceramic insulator, and the coating can be used after being naturally cured for 96 hours under the condition of 25 DEG C+ / -2 DEG C and 40%-70% of RH. According to the anti-pollution flashover coating, after the sprayed anti-pollution flashover coating is completely cured, the contact angle is not smaller than 135 degrees.

Description

Technical field: [0001] The invention belongs to the technical field of functional coatings, in particular to a novel anti-pollution flashover coating for special and ultra-high voltage insulators. Background technique: [0002] Pollution flashover accidents caused by serious pollution on the surface of insulators have caused huge economic losses and potential safety hazards. Coating anti-pollution flashover paint on the surface of transmission line insulators is the most commonly used and most effective anti-pollution flashover measure in domestic and foreign anti-pollution flashover technologies. However, with the change of the environment and the improvement of the external insulation level of my country's transmission lines, higher requirements are put forward for the performance of anti-pollution flashover coatings. The difference in antifouling flashover coating formula, preparation process and filler treatment method will seriously affect its hydrophobicity, pollutio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D183/04C09D7/12C09D5/18C09D5/16C09C1/28C09C1/02C09C3/12
Inventor 李辛庚苏建军郭凯吉翠萍傅敏岳增武王晓明王学刚闫风洁
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com