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Two-component waterborne wear-resisting and low-ice-adhesion anti-icing coating and coating layer, and preparation methods and applications thereof

An anti-icing, two-component technology, applied in coatings, epoxy resin coatings, chemical instruments and methods, etc., can solve the problems of volatilization, large pollution, loss, etc., and achieve simple preparation and construction processes and simple preparation processes , The effect of simple process

Active Publication Date: 2015-07-08
CHINA SCI INTELFUSION INT TECH (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods can reduce the ice adhesion strength, there are some problems in the application: (1) the superhydrophobic surface will lose the anti-frost effect as the temperature decreases; at the same time, according to the literature report (S.A.Kulinich, S .Farhadi, K.Nose, and X.W.Du.Langmuir,2011,27(1),25–29) The superhydrophobic surface will be continuously damaged during the deicing process, losing superhydrophobicity, thereby increasing the ice adhesion strength ; (2) The oily lubricant applied on the surface is difficult to last, it will volatilize or gradually wear out during the deicing process, and this kind of oily lubricant is usually highly polluted, causing a great burden to the environment (Konrad Rykaczewski, Kripa K.Varanasi. Langmuir, 2013, 29, 5230-5238)

Method used

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  • Two-component waterborne wear-resisting and low-ice-adhesion anti-icing coating and coating layer, and preparation methods and applications thereof
  • Two-component waterborne wear-resisting and low-ice-adhesion anti-icing coating and coating layer, and preparation methods and applications thereof
  • Two-component waterborne wear-resisting and low-ice-adhesion anti-icing coating and coating layer, and preparation methods and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] (1) Polycaprylyl adipate after vacuum dehydration (M n =2000) 90g, 76g of toluene diisocyanate (TDI), add it to a three-necked flask, mix well, heat up to 85°C for 1.5h, then add 10g DMPA, react at 85°C for 1h, and finally add 23g of diethylene glycol Alcohol, add a few drops of catalyst, acetone, react at 60°C for 4-5h, cool to 25°C, neutralize the prepolymer with triethylamine and add 500g of water for high-speed emulsification to obtain a white emulsion.

[0063] (2) The montmorillonite, which accounts for 15% of the total mass of component A, is mixed and stirred evenly with the polyurethane emulsion which accounts for 85% of the total mass of component A, to obtain the A component of the anti-icing coating.

[0064] (3) Adding a curing agent that accounts for 10% of the mass of the core-shell polymer emulsion to component A, and stir evenly to obtain the anti-icing coating.

[0065] (4) The anti-icing paint prepared in step (3) is directly coated on the ceramic surface an...

Embodiment 2

[0068] (1) Add 15g of polyvinyl alcohol (PVA) and NaHCO to a four-necked flask equipped with a condenser thermometer, dropping funnel and stirrer 3 2g, emulsifier TX-106g, H 2 O560g, adjust the temperature to 70°C and stir well. Then add (NH 4 ) 2 S 2 O 8 1.8g of aqueous solution, add 150g of monomer acrylic acid, 30g of styrene, 30g of methacrylic acid, and 12g of acrylamide in the funnel and mix uniformly. After 3 hours of dripping, continue to stir at 80℃ for 1 hour, and then cool to room temperature to obtain acrylate. Lotion.

[0069] (2) The activated alumina accounting for 20% of the total mass of component A is mixed and stirred evenly with the acrylic emulsion accounting for 80% of the total mass of component A to obtain the A component of the anti-icing coating.

[0070] (3) Add a curing agent that accounts for 10% of the mass of the acrylic emulsion to the A component, and stir evenly to obtain the anti-icing coating.

[0071] (4) The anti-icing paint prepared in step (3)...

Embodiment 3

[0074] (1) Take 50g epoxy resin E-44 into a three-necked flask, add a mixed solvent of 4g ethanol and 8g ethylene glycol monobutyl ether, pass nitrogen protection, heat up to 80℃, stir at constant temperature to completely dissolve the resin, add the right Aminobenzoic acid, continue to react for 13.5 hours under the protection of nitrogen at 80℃. As the reaction progresses, the color of the reaction system changes and the viscosity increases. After the reaction is completed, the solvent is removed and the sample is mixed with ethanol and water (1:5 volume Than) mixed solvent washing to remove unreacted p-aminobenzoic acid, and then vacuum drying for 48h. Dissolve the modified epoxy resin with DMF (1:1 volume ratio), add ethanolamine to neutralize, and add water dropwise under stirring to make an epoxy resin emulsion.

[0075] (2) Mix 3% of the total mass of the A component of silica with 97% of the total mass of the A component of the epoxy resin emulsion and stir evenly to obta...

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Abstract

The invention provides preparation methods of a two-component waterborne wear-resisting and low-ice-adhesion anti-icing coating and a coating layer thereof. The two-component waterborne anti-icing coating is composed of a component A containing a core-shell structure polymer emulsion and inorganic nanoparticles and a component B containing a curing agent. An outer layer of the core-shell structure polymer emulsion in the component A of the anti-icing coating is a hydrophilic shell layer, so that polymer emulsion particles can be stably dispersed in water, and the advantages of being green and environmentally friendly are provided. The inorganic nano particles in the component A are rigid particles, can improve the mechanical properties of the anti-icing coating layer, endow the coating layer with excellent wear resistance and prolong the service life of the coating layer. After the coating is cured into a film, the hydrophilic shell layer of the polymer emulsion particles can absorb moisture, and thus a water lubricating layer is formed on the surface of the coating layer; when the coating layer surface is iced, due to the existence of the water lubricating layer, the acting force between ice and the coating layer is decreased, besides, the substrate surface roughness is also reduced, and the contact area between the ice and the substrate is decreased.

Description

Technical field [0001] The invention belongs to the technical fields of chemistry, chemical engineering and materials, and relates to the preparation and application of a wear-resistant, low-ice adhesion anti-icing coating composed of a core-shell structure polymer emulsion. Background technique [0002] Ice and accumulation on roads, airplanes, ships, offshore oil platforms, wind turbines, dams, power lines, and telecommunications equipment have brought huge hazards and potential safety hazards to people’s lives and property. For example, road icing increases the probability of traffic accidents; large-scale snowfall and frost weather causes icing of cables and wires, resulting in damage to the power transportation system and huge losses to the national economy; icing on aircraft surfaces and wings threatens flight safety. For example, many plane crashes in Baotou, China, the United States and Siberia in Russia in recent years are all related to wing icing. The current anti-ici...

Claims

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Application Information

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IPC IPC(8): C09D175/06C09D151/00C09D163/00C09D7/12C09K3/18C08G18/76C08G18/42C08G18/34C08G18/32C08F261/04C08F220/06C08F212/08C08F220/56C08G59/14
CPCC08F261/04C08G18/0823C08G18/6659C08K3/22C08K3/346C08K2003/2227C08K2003/2296C09D7/61C09D151/00C09D163/00C09D175/06C08F220/06
Inventor 王健君窦仁美吕健勇宋延林
Owner CHINA SCI INTELFUSION INT TECH (BEIJING) CO LTD
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