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Anti-icing composite coating and manufacturing method thereof

A composite coating, anti-icing technology, applied in the directions of coatings, chemical instruments and methods, synthetic resin layered products, etc. Focus on problems such as force, to achieve the effect of reducing adhesion, low surface tension, and low cost

Active Publication Date: 2011-10-05
WUHAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, CN1010358106A, CN101230224A, US20020139956A1 and CN101514270A etc. adopt organofluorosilicon polymer materials to prepare anti-icing coatings, which can effectively reduce the adhesion of water and ice on the surface of wires, but practice shows that the anti-icing effect is poor and it is difficult to apply in production practice

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Inner layer - preparation of silicone-modified epoxy resin: Add 100 mL of diethyl ether, 13.2 g of HSi(OCH 3 ) 3 , stirred, and added 20.3 g of glycidyl alcohol and 30.3 g of triethylamine at 0° C., and raised the temperature to 30° C. for 8 hours. Stop stirring, filter, and separate to obtain a colorless silicone-modified epoxy resin liquid.

[0020] Preparation of the outer layer-fluorosilicon-modified acrylate: In a 250 mL three-neck flask, add 60 g of water and 0.2 g of sodium lauryl sulfate in sequence, and stir. Then 0.5 g vinyltriethoxysilane, 10.0 g hexafluorobutyl methacrylate, 5.0 g methyl methacrylate, and 0.15 g benzoyl peroxide were mixed together, ultrasonicated for 10 min, and then added to the three-necked flask Medium, N 2 protected, heated to 75°C, and reacted for 6 h to obtain a colorless transparent granular polymer. Take 15.0 g of the obtained polymer and 120 mL of ethanol, add them in turn to a 250 mL single-necked flask with a reflux tube, rai...

Embodiment 2

[0025] Inner layer - preparation of silicone-modified epoxy resin: In a 250 mL flask, add 150 mL THF, 13.2 g HSi(OCH 3 ) 3, stirred, and added 21.6 g epoxybutanol and 30.3 g triethylamine at 0°C, and heated to 60°C for 5 h. Stop stirring, filter, and separate to obtain a colorless silicone-modified epoxy resin liquid.

[0026] Preparation of the outer layer-fluorosilicon-modified acrylate: In a 250 mL three-necked flask, add 60 g of water and 0.2 g of sodium lauryl sulfate successively, and stir. Then 0.5 g vinyltriethoxysilane, 10.0 g hexafluorobutyl methacrylate, 5.0 g methyl methacrylate, and 0.15 g benzoyl peroxide were mixed together, ultrasonicated for 10 min, and then added to the three-necked flask Medium, N 2 protected, heated to 75°C, and reacted for 6 h to obtain a colorless transparent granular polymer. Take 15.0 g of the obtained polymer and 120 mL of ethanol, add them in turn to a 250 mL single-necked flask with a reflux tube, raise the temperature to 70 °C, ...

Embodiment 3

[0031] Inner layer - preparation of silicone-modified epoxy resin: Add 200 mL THF, 15.7 g Si(OCH 2 CH 3 ) 4 , stirred, added 23.2 g of glycidyl alcohol and 30.3 g of triethylamine at 0 °C, and heated to 50 °C for 3 h. Stop stirring, filter, and separate to obtain a colorless silicone-modified epoxy resin liquid.

[0032] Preparation of the outer layer-fluorosilicon-modified acrylate: In a 250 mL three-neck flask, add 60 g of water and 0.2 g of sodium lauryl sulfate in sequence, and stir. Then 0.5g of vinyltrimethoxysilane, 10.0g of trifluoroethyl methacrylate, 5.0g of methyl methacrylate, and 0.15g of benzoyl peroxide were mixed together, ultrasonicated for 10min, and then added to a three-necked flask. Under N2 protection, the temperature was raised to 75° C., and reacted for 6 hours to obtain a colorless transparent granular polymer. Take 15.0 g of the obtained polymer and 120 mL of ethanol, add them in turn to a 250 mL single-necked flask with a reflux tube, raise the t...

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PUM

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Abstract

The invention discloses an anti-icing composite coating and a manufacturing method thereof. The anti-icing composite coating comprises three layers, wherein an inner layer is an organic silicon modified epoxy resin layer, a middle layer is a polyelectrolyte salt layer and an outer layer is a fluorine-silicon modified acrylic ester layer. The anti-icing composite coating is coated on the surfaces of components, such as high-voltage cables, iron towers, communication lines, aircrafts and the like, the adhesive force between the inner layer and a substrate can be increased due to the inner layer, icing can be slowed down due to ions ionized by the middle layer, and the adhesive force of ice on the surface and the icing quantity of the surface can be reduced due to the super hydrophobicity of the outer layer. The anti-icing composite coating has excellent bonding force on the substrate and higher heat conductivity, the surface of the outer layer has low surface tension, high hydrophobicity and high icing resistance, and the adhesive force of water and ice can be reduced to the maximum, thus the water and the ice can be easily removed; meanwhile, the middle layer can ionize ions to delay the adhesion of the ice under severe environment, thus the purposes of icing prevention and ice removal are realized. The manufacturing method disclosed by the invention has the advantages of easiness, feasibility, convenience for control, lower cost, and excellent use effect during engineering.

Description

technical field [0001] The invention relates to a kind of anti-icing composite coating and a preparation method. The invention belongs to the technical fields of chemical engineering and materials. Background technique [0002] Icing and snow accumulation is a natural phenomenon, but it will cause great harm to the industry. For example, it will cause accidents in various large power systems. the inconvenience. The hazards caused by icing on transmission lines to the power system include mechanical and electrical failures such as conductor galloping, disconnection, collapse, and insulator flashover, which seriously threaten the safe and reliable operation of power, communications, and aviation. [0003] Generally speaking, the icing phenomenon of conductors is formed due to various meteorological reasons, which mainly include factors such as temperature, humidity, cold and warm air convection, circulation and wind speed. Winter rain contains supercooled water droplets, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/30B32B9/04C09D5/00C09D163/00C09D133/04
Inventor 黄驰李岩胡铭杰赵宇明刘兴海黎小林黄荣华罗运柏
Owner WUHAN UNIV
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