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Self-heat-absorption anti-icing easy-deicing coating for power grid overhead ground wire and preparation method thereof

An overhead ground wire, anti-icing technology, applied in the direction of polyether coating, coating, etc., can solve the problems of insufficient safety distance of wires, affecting the normal operation of the line, galloping discharge, etc., to achieve easy fall off, enhance the ability of hydrophobic and anti-fouling , the effect of preventing freezing

Inactive Publication Date: 2021-03-30
NINGBO POWER SUPPLY COMPANY STATE GRID ZHEJIANG ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the weather conditions are bad, the overhead ground wire is covered with ice, which leads to insufficient safety distance from the conductor, and galloping discharge occurs, which affects the normal operation of the line

Method used

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  • Self-heat-absorption anti-icing easy-deicing coating for power grid overhead ground wire and preparation method thereof

Examples

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preparation example Construction

[0031] Another aspect of the embodiment of the present invention provides the preparation method of the aforementioned self-absorbing heat-removing easy-to-deicing coating for the overhead ground wire of the power grid, which includes: silicone modified resin, polytetrafluoroethylene micropowder, self-absorbing heat pigment, perfluorinated Polyether, butyl acetate, and xylene are mixed and stirred evenly, and the fineness of grinding is 20um, and then the viscosity of the obtained mixture is adjusted with xylene to obtain the self-absorbing heat-absorbing and easy-to-deicing coating for the overhead ground wire of the power grid.

[0032] Further, the stirring time is 20-30 min, and the rotation speed is 2000-4000 r / min.

[0033] Further, the viscosity of the obtained mixture was adjusted to T-4 cup for 40-70s with xylene.

[0034] Another aspect of the embodiments of the present invention provides a self-absorbing heat-easy deicing coating for power grid overhead ground wires, ...

Embodiment 1

[0049] According to the mass percentage (if not specified below, it refers to the mass percentage content of each component in the self-absorbing heat and easy deicing coating for overhead ground wires of the power grid), respectively, take the Siloke Silicon 45% of PFPE resin and 10% of butyl acetate were added to the mixing pot and stirred at a speed of 4000r / min for 5 minutes. While stirring, continue to add 20% of polytetrafluoroethylene micropowder, 15% of self-endothermic pigment, and 1.1% of perfluoropolyether. , xylene 8.9%, continue to stir at the same speed for 10min, grind until the fineness meets the requirements, adjust the viscosity to T-4 cup 40-70S with xylene, filter to obtain the power grid overhead ground wire with self-absorbing heat and easy deicing Coating component A and component B are made of N3390 trimer 100%, and components A and B are mixed according to -NCO:-OH=1:1 (mass ratio) and cured to form an overhead ground wire of the power grid. Floor.

Embodiment 2

[0051] According to the mass percentage (if not specified below, it refers to the mass percentage content of each component in the self-absorbing heat and easy deicing coating for overhead ground wires of the power grid), respectively, take the Siloke Silicon 52% of PFPE resin and 22% of butyl acetate were added to the mixing pot and stirred at a speed of 4000r / min for 5 minutes. While stirring, 14% of polytetrafluoroethylene micropowder, 5% of self-endothermic pigment, and 2% of perfluoropolyether were added. , xylene 5%, continue to stir at the same speed for 10min, grind until the fineness meets the requirements, adjust the viscosity to T-4 cup 40-70S with xylene, filter to obtain the power grid overhead ground wire with self-absorbing heat and easy deicing Coating component A and component B are made of N3390 trimer 100%, and components A and B are mixed according to -NCO:-OH=1:1 (mass ratio) and cured to form an overhead ground wire of the power grid. Floor.

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Abstract

The invention discloses a self-heat-absorption anti-icing easy-deicing coating for a power grid overhead ground wire and a preparation method thereof. The self-heat-absorption anti-icing easy-deicingcoating comprises the following components in parts by mass: 45-60 parts of organic silicon modified resin, 8-20 parts of polytetrafluoroethylene micro-powder, 5-25 parts of self-heat-absorption pigment, 6-25 parts of butyl acetate, 0-9 parts of dimethylbenzene, and 0.2-2 parts of perfluoropolyether. The self-heat-absorption anti-icing easy-deicing coating for the power grid overhead ground wire is mixed with a curing agent, then the mixture is coated on the surface of a power grid overhead ground wire lead base material, and a coating is formed after curing. The added polytetrafluoroethylenemicro powder enables the smooth surface of the coating to form many tiny surface energy mastoid protrusions similar to the lotus leaf surface, the hydrophobic and anti-pollution capacity of the surface of the coating is further enhanced, and icing is prevented; by adding the self-heat-absorption pigment, the coating can play a role in heat absorption on the basis of low surface energy, the energyof sunlight in the nature is fully utilized, and the ice layer is easier to fall off and deice after absorbing heat.

Description

technical field [0001] The invention belongs to the technical field of special coatings, and in particular relates to a self-absorbing heat-resistant anti-icing and easy-deicing coating for overhead ground wires of power grids and a preparation method thereof. Background technique [0002] Ice and snow accumulation on transmission lines threaten the safe operation of power and communication networks. Under certain climatic conditions, ice-covered power line disconnection accidents caused by freezing weather occur frequently, and the resulting large-scale power outages have caused great losses and adverse effects on the country, enterprises and people's lives. [0003] Our country has a vast territory. In the low-temperature rainy and snowy weather when the weather is cold in the south, due to the damp and cold, a large amount of water vapor is easy to condense on the surface of the wire and then condenses into ice coating, which is easy to cause the transmission line to be c...

Claims

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Application Information

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IPC IPC(8): C09D171/00C09D133/04C09D5/25C09D7/61C09D7/65C09D7/63
CPCC08L2203/202C08L2205/025C08L2205/03C09D5/00C09D133/04C09D171/00C09D7/61C09D7/63C09D7/65C08L27/18C08L71/00C08K3/22C08K5/34924
Inventor 周开河朱艳伟蓝席建吴忠平马丽军江炯钱锡颖但扬清金坤鹏王群
Owner NINGBO POWER SUPPLY COMPANY STATE GRID ZHEJIANG ELECTRIC POWER
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