Low-temperature antifreeze coating for porcelain and glass insulators and preparation method thereof

A technology of glass insulators and insulators, applied in chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve problems such as environmental pollution, metal ion solutions are difficult to reuse, and consume a large amount of acid-base solutions

Active Publication Date: 2016-02-24
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods need to consume a large amount of acid-base solution in the implementation process, and the solution in which the metal ions are dissolved is difficult to reuse, and the treatment of waste liquid will cause further environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A low-temperature antifreeze coating for porcelain and glass insulators, comprising Si0 disposed on the outer surface of the insulator 2 film layers and are provided on the Si0 2 The fluorine-containing organic film layer on the film layer is composed of C-Si0 2 Graphite film. The Si0 2 The film layer is made of Si0 2 film preparation solution, the Si0 2 The film layer preparation solution is made of Si0 2 Sol and Si0 2 Powder composition, Si0 2 Si0 in sol 2 The number of moles of Si0 2 Si0 in powder 2 The ratio of the moles is 3.15:1.

[0018] Among them, the Si0 2 The sol is an acidic silica sol, and its preparation method is: adding absolute ethanol and tetraethyl orthosilicate into a reaction vessel, then placing the reaction vessel in a cold water bath, stirring to mix the absolute ethanol and tetraethyl orthosilicate into a Homogeneous solution to obtain reaction solution A, then drop deionized water into reaction solution A to obtain reaction solution...

Embodiment 2

[0027] A low-temperature antifreeze coating for porcelain and glass insulators, comprising Si0 disposed on the outer surface of the insulator 2 film layers and are provided on the Si0 2 The fluorine-containing organic film layer on the film layer is composed of C-Si0 2 Graphite film. The Si0 2 The film layer is made of Si0 2 film preparation solution, the Si0 2 The film layer preparation solution is made of Si0 2 Sol and Si0 2 Powder composition, Si0 2 Si0 in sol 2 The number of moles of Si0 2 Si0 in powder 2 The ratio of the number of moles is 3:1.

[0028] Among them, the Si0 2 The sol is an acidic silica sol, and its preparation method is: adding absolute ethanol and tetraethyl orthosilicate into a reaction vessel, then placing the reaction vessel in a cold water bath, stirring to mix the absolute ethanol and tetraethyl orthosilicate into a Homogeneous solution to obtain reaction solution A, then drop deionized water into reaction solution A to obtain reaction s...

Embodiment 3

[0033] A low-temperature antifreeze coating for porcelain and glass insulators, comprising Si0 disposed on the outer surface of the insulator 2 film layers and are provided on the Si0 2 The fluorine-containing organic film layer on the film layer is composed of C-Si0 2 Graphite film. The Si0 2 The film layer is made of Si0 2 film preparation solution, the Si0 2 The film layer preparation solution is made of Si0 2 Sol and Si0 2 Powder composition, Si0 2 Si0 in sol 2 The number of moles of Si0 2 Si0 in powder 2 The molar ratio of 3.2:1.

[0034] Among them, the Si0 2 The sol is an acidic silica sol, and its preparation method is: adding absolute ethanol and tetraethyl orthosilicate into a reaction vessel, then placing the reaction vessel in a cold water bath, stirring to mix the absolute ethanol and tetraethyl orthosilicate into a homogeneous solution to obtain reaction solution A, then drop deionized water into reaction solution A to obtain reaction solution B, adju...

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Abstract

The invention discloses a low-temperature antifreeze coating for a ceramic and glass insulator and a preparation method thereof. The low-temperature antifreeze coating comprises a SiO2 film layer arranged on the outer surface of an insulator and a fluorine-containing organic matter film layer arranged on the SiO2 film layer, wherein a C-SiO2 graphite film layer is arranged outside the fluorine-containing organic matter film layer. The preparation method comprises the following steps: coating the outer surface of the insulator body with a SiO2 film layer, coating the film layer with a fluorine-containing organic matter film layer, and coating graphite and the SiO2 film layer. The two-layer structure is changed into a three-layer structure, 0 DEG C water drops collide with the surface of the coating and rapidly drop, no water drop residue is left on the surface of the coating, the experimental process can last for about 150 minutes, the coating keeps good hydrophobic performance at a low temperature, freezing rain is effectively prevented from freezing on the surface of the coating, and the coating has frosting resistance, freezing rain resistance and self-cleaning capacity.

Description

technical field [0001] The invention belongs to the technical field of insulator surface coatings, in particular to a low-temperature antifreeze coating for porcelain and glass insulators and a preparation method thereof. Background technique [0002] my country is one of the most serious countries in the world where transmission lines suffer from icing disasters. In the cold winter, the heavy snow in the north and the sleet climate at 3-o°C in the central and southern regions can easily lead to the snow accumulation and freezing of the line hanging insulator strings, which will cause short-circuit tripping of the insulators and power outages. Since 1954, when there were records of ice disaster accidents on transmission lines, large-scale ice disaster accidents have occurred across the country one after another. [0003] The ice on the surface of the insulator will melt when the temperature rises. Due to the presence of conductive ions in the dirt on the ice layer, under th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/34C04B41/89B32B9/04B32B27/00
Inventor 张逸群牛宇干郑福斌郭晓飞平林涛金会军张金光
Owner STATE GRID CORP OF CHINA
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