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Method for preparing anti-icing self-repaired coating

An anti-icing and self-healing technology, applied in coatings, anti-corrosion coatings, anti-fouling/underwater coatings, etc., can solve problems such as difficulties, substrate processing difficulties, poor wettability, etc., and achieves simple coating methods and low preparation costs. Effect

Active Publication Date: 2019-11-01
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fan blade is a composite material formed of resin and glass fiber. The wettability of the surface of this material is extremely poor and it is not easy to form a film, and the physical and chemical properties of this material are extremely stable, and the treatment of the substrate is more difficult. It is still difficult to prepare anti-icing coatings on blades with cheap methods

Method used

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  • Method for preparing anti-icing self-repaired coating
  • Method for preparing anti-icing self-repaired coating
  • Method for preparing anti-icing self-repaired coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Coatings can be applied to a wide range of substrates

[0027] (1) Preparation of mixed emulsion: Weigh 0.5g of micron calcium carbonate particles, 0.25g of hydrophobic nano-silica particles, 0.7g of polydimethylsiloxane, 4g of ethyl acetate in a container and mix them magnetically for 30-40min stand-by;

[0028] (2) Cleaning of the substrate: the composite plastic (the composite plastic is FR-4 epoxy glass fiber board, the company is Hongyuntong Plastic Material Co., Ltd.), glass slides (glass slides) are cleaned by washing powder and ultrasonic cleaning in sequence. , Ordinary water cleaning, ultrasonic cleaning, acetone cleaning, deionized water cleaning and drying for later use;

[0029] (3) Preparation of the mixed coating of calcium carbonate and silicon dioxide: immerse the cleaned substrate in the emulsion of (1), soak for 10 minutes, take it out and dry it, and then bake it at 130°C for 60 minutes;

[0030] (4) Preparation of super-hydrophobic coating; soak t...

Embodiment 2

[0034] Self-cleaning of coatings on composite plastic substrates

[0035] (1) Preparation of mixed emulsion: Weigh 1g of micron calcium carbonate particles, 0.25g of hydrophobic nano-silica particles, 1g of polydimethylsiloxane, and 4.5g of ethyl acetate in a beaker and mix them magnetically for 30-40min. use;

[0036] (2) Cleaning of the substrate: The composite plastic (the composite plastic is FR-4 epoxy glass fiber board, the company is Hongyuntong Plastic Material Co., Ltd.) is washed by washing powder, ultrasonic cleaning, ordinary water cleaning, ultrasonic cleaning, Wash with acetone and deionized water and dry for later use

[0037] (3) Preparation of the mixed coating of calcium carbonate and silicon dioxide: immerse the cleaned substrate in the emulsion of (1), soak for 10 minutes, take it out and dry it, and then bake it at 120°C for 50 minutes;

[0038] (4) Preparation of anti-icing coating; soak the dried sample in dilute hydrochloric acid for 5-10 minutes, rinse...

Embodiment 3

[0042] Anti-icing of Composite Plastic Substrate Coating

[0043] (1) Preparation of mixed emulsion: Weigh 1g of micron calcium carbonate particles, 0.5g of hydrophobic nano-silica particles, 1g of polydimethylsiloxane, and 5g of ethyl acetate in a beaker, mix them with magnetic force for 30-40min and set aside ;

[0044] (2) Cleaning of the substrate: The composite plastic (the composite plastic is FR-4 epoxy glass fiber board, the company is Hongyuntong Plastic Material Co., Ltd.) is washed in sequence by washing powder, ultrasonic cleaning, ordinary water cleaning, ultrasonic cleaning, After washing with acetone and deionized water, dry it for later use;

[0045] (3) Preparation of mixed coating: immerse the cleaned substrate in the emulsion of (1), soak for 10 minutes, take it out and dry it, and then bake it at 150°C for 30 minutes;

[0046] (4) Preparation of anti-icing coating; soak the dried sample in dilute hydrochloric acid for 5-10 minutes, rinse it with deionizat...

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Abstract

The invention relates to a method for preparing a nano porous coating. The method comprises the following steps: mixing and stirring micron-order calcium carbonate particles, nano-grade silicon dioxide particles, polydimethylsiloxane and ethyl acetate so as to obtain an emulsion for later use; soaking a substrate into the emulsion, taking out the substrate after 10-20 minutes of soaking, and performing drying, namely drying the substrate with the coating for 50-80 minutes at 120-150 DEG C; and soaking the dried sample into diluted hydrochloric acid for 5-10 minutes, washing the dried sample with deionized water, and performing drying for 0.5-1.5 hours at 120-160 DEG C, so as to obtain an anti-icing self-repaired coating. A double-rough composite coating of a lotus leaf structure is prepared by mainly using a physical mixing and chemical corrosion methods, and the coating has good super-hydrophobicity under a low temperature condition, and thus has an anti-icing capability. The super-hydrophobicity coating prepared by using the method not only has good super-hydrophobicity and anti-icing capabilities, but also has a self repairing capability and acid-alkali resistance. The coating is low in preparation method cost, convenient to operate and wide in application substrate.

Description

technical field [0001] An anti-icing self-healing coating, which belongs to the field of materials and environment, is mainly aimed at fan blades and other outdoor equipment that are easily polluted by dust and easy to freeze in cold and rainy areas, by adding a layer of super-hydrophobic coating on the surface of the equipment It can effectively improve the hydrophobicity and anti-fouling ability of the material under low temperature conditions, so as to realize the anti-icing performance of the material. Background technique [0002] Nowadays, wind energy has become one of the important renewable energy sources. However, wind turbines often face serious icing phenomena when they operate in the south or in high altitude areas in winter. One of the main problems is the accumulation of ice on the turbine blades, which can significantly change the aerodynamic geometry of the blade surface, so that the efficiency of the wind turbine can be greatly reduced, and in severe cases, ...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D183/04C09D5/16C09D5/08C09D7/62C03C17/00
CPCC03C17/009C03C2217/29C03C2217/76C03C2218/111C03C2218/31C03C2218/328C08K2201/011C09D1/00C09D5/08C09D5/1687C09D183/04C08K9/00C08K3/36
Inventor 谭新玉王嫚杨瑷碧李炜王云宽黄正涛
Owner CHINA THREE GORGES UNIV
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