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Super-smooth anti-icing coating with heat energy deicing performance

An anti-icing, ultra-smooth technology, applied in the direction of coating, etc., can solve the problems of large usage, high price, environmental pollution, etc., and achieve the effect of increasing the contact area, enhancing the mechanical strength, and alleviating icing

Active Publication Date: 2016-06-29
ZIBO YINGQIANG CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during use, the liquid lubricating layer will fall off from the surface, and the ice will be riveted with the rough structure of the surface, thereby greatly increasing the adhesion between ice and the surface, so that the coating loses its anti-icing performance
Commonly used lubricating fluids are perfluoropolyethers or long carbon chain perfluoroalkanes, which are expensive
[0004] Polyethylene glycols, glycerin, etc. are often used as antifreeze agents, but if the antifreeze agents are used directly, in the case of severe freezing, the anti-icing performance will be lost, and the large amount of use will pollute the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The quality 75g of ferroferric oxide; The copolymer of polyethylene glycol methacrylic acid and glycidyl methacrylate is 5:1 to prepare copolymer with mass ratio, polymer is 20g; The mass ratio of diethylenetriamine After stirring evenly, the coating film and the surface of the substrate are evaporated at room temperature, and then cured in a vacuum oven at 140°C for 9 hours and annealed. Finally, the surface is wetted with ethylene glycol to form a smooth liquid-wetted surface to form a smooth liquid-wetted layer.

[0019] For the prepared samples, the contact angle was measured, and the droplets spread instantaneously on the coating surface. It was found by DSC test that the freezing point was lowered to -36°C. When the temperature is -18°C, extend the frosting time to 3000s. The adhesion of ice to the surface is 0.01N. When an ice layer forms on the surface of the coating, reduce the ice-melting time to 500s.

Embodiment 2

[0021] The total mass of ferriferric oxide and SiO2 particle is 30g (wherein the quality of SiO2 particle is 3.9g); Polyethylene glycol methacrylic acid and glycidyl acrylate are 4:2 to prepare copolymer with mass ratio, polymer is 19g ; maleic anhydride is 1g; after stirring evenly, the coating film and the surface of the substrate, the solvent evaporates at room temperature, and then 170 ℃, curing in a vacuum oven for 5 hours, annealing. Finally, triethylene glycol is used to infiltrate the surface to form a smooth liquid-wetting surface to form a smooth liquid-wetting layer.

[0022] For the prepared samples, the contact angle was measured, and the droplets spread instantaneously on the coating surface. It was found by DSC test that the freezing point was lowered to -40°C. When the temperature is -18°C, extend the frosting time to 3080s. The ice-surface adhesion is 0.12N. When an ice layer forms on the surface of the coating, reduce the ice-melting time to 520s.

Embodiment 3

[0024] The total mass content 100g of ferric oxide and carbon black particles (wherein the quality of carbon black is 23g); Polyethylene glycol methacrylic acid and glycidyl acrylate are 3:3 to prepare copolymer with mass ratio, polymer is 94g Hexamethylenediamine is 6g; after stirring evenly, the coating film and the surface of the substrate are evaporated at room temperature, and then cured in a vacuum oven at 125°C for 14h and annealed. Finally, PEG400 is used to infiltrate the surface to form a smooth liquid-wetted surface to form a smooth liquid-infiltrated layer.

[0025] For the prepared samples, the contact angle was measured, and the droplets spread instantaneously on the coating surface. It was found by DSC test that the freezing point was lowered to -34°C. When the temperature is -18°C, extend the frosting time to 2080s. The ice-surface adhesion is 0.15N. When an ice layer forms on the surface of the coating, reduce the ice-melting time to 530s.

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Abstract

The invention discloses a super-smooth anti-icing coating with heat energy deicing performance.The coating is prepared from, by mass, 20-69 parts of polyethylene glycol acrylic acid epoxy resin, 1-5 parts of a crosslinking agent, 30-75 parts of inorganic particles which are magnetic particles or a mixture of magnetic particles and non-magnetic particles, and lubricating fluid.The super-smooth anti-icing coating is formed by generating an amphipathic coating through a crosslinking reaction of the polyethylene glycol acrylic acid epoxy resin, the inorganic particles and the crosslinking agent, and then wetting the surface of the amphipathic coating with the lubricating fluid.Large adhesive force between the coating and a base material can be achieved, the anti-icing effect is lasting and stable, ice can be easily removed from the surface due to the small adhesive force between the ice and the surface, and the coating can be heated under an applied magnetic field or illumination to achieve the heat energy deicing effect.The super-smooth anti-icing coating is simple in preparation process, convenient to operate, environmentally friendly, low in price and suitable for industrialized application.

Description

technical field [0001] The invention relates to a coating, in particular to an ultra-smooth anti-icing coating with thermal energy deicing performance. Background technique [0002] Icing is a very common phenomenon in nature. Atmospheric icing of structures, such as icing of aircraft wings and shells, icing of wires, icing of roads, icing of fan blades, and icing of railway tracks, are common natural phenomena. . But when this phenomenon is serious, it will bring a lot of inconvenience to people's production and life, and even threaten people's life and property safety. Therefore, research on anti-icing technology is of great significance. There are four main types of anti-icing technology research, namely solution anti-icing, mechanical de-icing, thermal energy anti-icing and coating anti-icing. Among them, coating anti-icing is an ideal anti-icing method compared with the other three methods because of its low energy consumption, wide application range, and passive pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D7/12
CPCC08K3/04C08K3/22C08K3/36C08K2003/2275C08K2003/2296C09D7/61C09D151/08
Inventor 张庆华程甜甜詹晓力陈丰秋
Owner ZIBO YINGQIANG CHEM TECH