Paint for preventing covering ice for insulator and its preparation method

An insulator, anti-icing technology, applied in the direction of coating, can solve problems such as line outage, and achieve the effects of reducing harm, excellent hydrophobicity, and low cost

Inactive Publication Date: 2007-07-11
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the winter of 1996, multiple line protection actions occurred on the Ge

Method used

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  • Paint for preventing covering ice for insulator and its preparation method
  • Paint for preventing covering ice for insulator and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1:

[0034]Example 1 Anti-icing coating for insulators, by weight, contains: 100 parts of 107 base rubber (polydimethylsiloxane, viscosity 10000Pa·S), 150 parts of petroleum ether (or solvent gasoline), 15 parts of carbon black, 10 parts of carbon fiber powder, 15 parts of aluminum hydroxide, 3 parts of silica, 3 parts of zinc oxide and 7 parts of silane coupling agent.

[0035] Polydimethylsiloxane is commonly known as base rubber. It is the basic rubber of room temperature vulcanized silicone rubber with a molecular weight of 10,000 to 80,000. It is a hydroxyl-terminated polydiorganosiloxane. It can occur under certain conditions and under the action of crosslinking agents. Cross-linking reaction to form linear polysiloxane.

[0036] The carbon black is specially conductive carbon black, and the nitrogen adsorption specific surface area is 300m 2 / g.

[0037] Carbon fiber powder is made of polyacrylonitrile-based carbon fiber continuous filaments cut into short fi...

Example Embodiment

[0059] Example 2:

[0060] Example 2 An anti-icing coating for insulators, by weight, contains: 100 parts of 107 base rubber (polydimethylsiloxane, viscosity 5000 Pa·S), 100 parts of petroleum ether (or solvent gasoline), 12 parts of carbon black, 10 parts of carbon fiber powder, 30 parts of aluminum hydroxide, 3 parts of silica, 3 parts of zinc oxide and 7 parts of silane coupling agent.

[0061] This coating is suitable for areas with heavy pollution and high salt density. The coating formulated by this formula has better arc ablation resistance and hydrophobic migration performance under harsh environmental conditions. The preparation method of the coating described in Example 2 is the same as that in Example 1.

[0062] The basic performance test results of the anti-icing coating for insulators of Example 2 are shown in Table 3.

[0063] table 3

[0064] Test items

[0065] Figure 4 shows an insulator coated with an anti-icing coating for insulators of the present i...

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Abstract

The invention discloses an anti-insulator ice-coating paint and making method, which comprises the following parts: 100g polydimethyl siloxane, 100-150g organic solvent, 12-15g conductive fill, 10g carbon fiber powder, 15-30g aluminium hydroxide, 3g silica, 3g zinc oxide and 7g silane coupler, wherein the paint is coated on the insulator surface to prevent ice from covering, which improves stability of electric system operation.

Description

technical field [0001] The invention belongs to the field of high-voltage external insulation, and relates to a method for coating the surface of insulators with silicon rubber paint to prevent insulators from icing on transmission lines, and the development of the coating for preventing insulators from icing. Background technique [0002] Transmission lines are exposed in the natural environment, and their safe operation is closely related to the natural environment. With the change of climatic conditions, the transmission line is subjected to the test of alternation of cold and warm, wind and rain, which will inevitably have a certain degree of influence and damage. For example, exposure to the sun and rain will cause the aging of the wires; the outer insulating surface of the power equipment will gradually accumulate pollution during operation, forming pollution flashover; lightning will cause lightning overvoltages on overhead transmission lines, etc. In addition, the i...

Claims

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Application Information

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IPC IPC(8): C09D183/14C09D7/12C09D5/00
Inventor 贾志东廖伟焱王黎明关志成
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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