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Inorganic water-repellent and antifouling glaze for porcelain insulators and its preparation method and application

A porcelain insulator and a technology for insulators are applied in the field of improvement of glaze for porcelain insulators, which can solve the problems of poor weather resistance, low rigidity and easy aging, and achieve the effects of simple and easy preparation method, broad market prospect and good weather resistance.

Active Publication Date: 2017-10-13
SINOMA JIANGXI ELECTRICAL PORCELAIN ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regular power outage cleaning not only causes power outages in the power grid, but also cannot prevent the occurrence of "pollution flashover" as environmental pollution becomes more and more serious; increasing creepage distance brings great difficulties to the manufacture of porcelain insulators; it is used for insulator anti-pollution The development of hydrophobic coatings for flash applications has gone through the process of silicone oil, silicone grease, ground wax and room temperature vulcanized silicone rubber RTV and PRTV, but the life of organic hydrophobic coatings is short, and it needs to be recoated regularly after power failure
In recent years, composite insulators using hydrophobic silicone rubber sheds have been widely used. Although this type of composite insulator has excellent anti-"pollution flashover" performance, it also has problems such as easy aging, breakdown, low rigidity, and poor weather resistance. Defects, cannot effectively guarantee the long-term reliable operation of the power grid

Method used

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  • Inorganic water-repellent and antifouling glaze for porcelain insulators and its preparation method and application
  • Inorganic water-repellent and antifouling glaze for porcelain insulators and its preparation method and application
  • Inorganic water-repellent and antifouling glaze for porcelain insulators and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of coating solution

[0033] First prepare the ingredients according to the following recipe. Weigh silica sol and acetic acid respectively according to weight percentage, stir 5min on magnetic stirrer; Then add methylsilane (the mixture of methyltriethoxysilane and methyltrimethoxysilane in proportion to the stirred solution, The mixing mass ratio is 1:1), then put it on a magnetic stirrer and stir for 10 minutes; observe the uniformity of the solution, after there is no obvious precipitation or suspended matter, add propanol according to the proportion, and magnetically stir for 14 hours; the evenly stirred solution is sealed and statically It can be used after 2 days of being stale.

[0034] The glaze formulation is shown in Table 1.

[0035] Table 1 Embodiment 1 Glaze formula

[0036]

[0037] (2) Preparation of coated insulators

[0038] After the porcelain pieces come out of the kiln, blow them clean with compressed air, clean the pollutants...

Embodiment 2

[0043] (1) Preparation of coating solution

[0044] First prepare the ingredients according to the following recipe. Weigh silica sol and acetic acid respectively according to weight percentage, stir 30min on magnetic stirrer; Then add methylsilane (the mixture of methyltriethoxysilane and methyltrimethoxysilane in proportion to the solution that has been stirred, The mixing mass ratio is 1:3.5), then put it on a magnetic stirrer and stir for 50 minutes; observe the uniformity of the solution, after there is no obvious precipitation or suspended matter, add propanol according to the proportion, and magnetically stir for 12 hours; the evenly stirred solution is sealed and statically It can be used after 7 days of staleness.

[0045] The glaze formulation is shown in Table 2.

[0046] Table 2 embodiment 2 glaze formula

[0047]

[0048] (2) Preparation of coated insulators

[0049] After the porcelain pieces come out of the kiln, blow them clean with compressed air, clean...

Embodiment 3

[0054] (1) Preparation of coating solution

[0055] First prepare the ingredients according to the following recipe. Weigh silica sol and acetic acid respectively according to weight percentage, stir 10min on magnetic stirrer; Then add methylsilane (the mixture of methyltriethoxysilane and methyltrimethoxysilane in proportion to the stirred solution, The mixing mass ratio is 1:2), then put it on a magnetic stirrer and stir for 30 minutes; observe the uniformity of the solution, after there is no obvious precipitation or suspended matter, add propanol according to the proportion, and magnetically stir for 18 hours; the evenly stirred solution is sealed and statically It can be used after 5 days of staleness.

[0056] The glaze formulation is shown in Table 2.

[0057] Table 2 embodiment 2 glaze formula

[0058]

[0059] (2) Preparation of coated insulators

[0060] After the porcelain pieces come out of the kiln, blow them clean with compressed air, clean the pollutants ad...

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Abstract

The invention relates to an inorganic hydrophobic antifouling glaze used for a porcelain insulator as well as a preparation method and an application thereof and belongs to the technical field of improvement of glazes used for the porcelain insulators. The inorganic hydrophobic antifouling glaze used for the porcelain insulator is prepared from the following raw materials in percentage by weight: 3-14% of silica sol, 0.5-4% of methylsilane, 12-21% of acetic acid and 75-89% of propyl alcohol. The inorganic hydrophobic antifouling glaze used for the porcelain insulator is simple in formula, hydrophilicity of the surface of the traditional porcelain insulator is changed, antifouling property is improved, and the inorganic hydrophobic antifouling glaze used for the porcelain insulator has the advantages of aging resistance, scour resistance, good weather resistance, high strength and long life. The invention also provides a simple preparation method and an application of the inorganic hydrophobic antifouling glaze.

Description

technical field [0001] The invention relates to an inorganic hydrophobic and antifouling glaze for porcelain insulators, a preparation method and application thereof, and belongs to the technical field of improving glazes for porcelain insulators. Background technique [0002] The problem of "pollution flashover" has plagued the electric power and railway transportation industry for a long time, and has become a bottleneck in the technological development of electric power and electrified railways. Especially with the increasingly serious industrial pollution and smog, more and more pollution flashover accidents seriously threaten the safety and reliability of high-voltage power grids and railway track catenary, causing huge losses to people's lives and the national economy . [0003] The anti-pollution flashover measures of traditional porcelain insulators include regular power-off cleaning, increasing the creepage distance of insulators, and coating hydrophobic coatings o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00B05D5/00
CPCB05D5/00C09D1/00
Inventor 阎法强郭志军丁彦霞陈文辉桑建华杨明
Owner SINOMA JIANGXI ELECTRICAL PORCELAIN ELECTRIC CO LTD
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