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RTV single component hydrophobic long-acting antifouling flashing paint

An antifouling flashover coating, a single-component technology, applied in the direction of antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve the problems of poor adhesion, short life, inconvenient use, etc., to achieve anti-fouling Improved sedimentation ability, increased pollution flashover voltage, and excellent weather resistance

Inactive Publication Date: 2003-11-19
CHENGDU TALY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of RTV silicone coating is mostly two-component, which is extremely inconvenient to use, and has poor adhesion, large waste and short service life
There are also some single-component anti-fouling flashover coatings, such as "hydrophobic anti-fouling flashover coating" disclosed in CN1077474, "a long-term anti-fouling flashover coating" disclosed in CN1136060A, also because of its direct selection of commercially available single-component silicon The rubber is used with diluent, and the components and process methods of the paint have not been studied. In addition, the effect of anti-pollution flashover paint varies greatly due to the different technical levels and production formulas of different manufacturers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The following are examples of the present invention:

[0013] 30 parts (parts by weight) of hydroxyl-terminated polydimethylsiloxane (η=3000~5000mm 2 / s); basic flame retardant Al(OH) 3 4 parts (parts by weight), reinforcing agent treated with gas phase method SiO 2 (The BET is 175m 2 / s) 38 parts (parts by weight), additive inert dimethicone (η=350~500mm 2 / s) 1 part (parts by weight), respectively add to the batching kettle and heat to 150℃ (not less than 600mmHg) under stirring, dehydrate for 2 hours, use N 2 Vent, then add 0.2 parts (parts by weight) of the catalyst titanate chelate, 1 part of the cross-linking agent methyltrimethoxysilane and continue to stir for 1 hour, and then add 60 parts of anhydrous petroleum ether with a diluent 90~120℃ ( (Parts by weight) after continuing to stir for 0.5 hours, filter and seal the package in an iron tin or glass bottle.

[0014]

[0015] In the above-mentioned embodiments, the measured adhesion reached level 1, the...

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PUM

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Abstract

The present invention provides a RTV monocomponent hydrophobic long-acting antifouling flashing paint for porcelain insulator for high-voltage transmission line of power system and its production method. It is formed from the following components (by weight %): 20-40% of terminal hydroxy polysiloxane, 2-10% of basic fire-resisting agent, 3-20% of reinforcing agent, 1-5% of additive, 0.2-0.4% of catalyst, 1-5% of cross-linking agent and 30-60% of diluting agent.

Description

Technical field [0001] The invention relates to an RTV single-component water-repellent long-lasting anti-pollution flashover paint used for high-voltage transmission and transformation (station) lines of electric power systems and porcelain insulators of railway electric locomotives and a production method. Background technique [0002] Porcelain insulators are currently important parts of power transmission and transformation (station) lines and railway electric cars, and are also the most economical products with the longest history of use. Because porcelain insulators are prone to accumulate pollutants during use, that is, dirt, and the hydrophilicity of the surface can easily form a conductive water film under harsh conditions such as rain, fog, and dew, causing "fouling flash" power outage accidents. In order to reduce the surface energy of porcelain insulators and make the surface hydrophobic to reduce and eliminate the pollution flashover and power failure trip accidents ...

Claims

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Application Information

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IPC IPC(8): C09D5/16C09D183/04
Inventor 陶云峰王成张向伟胡发岭乔俊祥
Owner CHENGDU TALY TECH CO LTD
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