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Preparation method of friction-resistant anti-icing coating layer

A friction-resistant and anti-icing technology, applied in coatings, antifouling/underwater coatings, epoxy coatings, etc., can solve the problems of high cost, complex preparation methods, poor mechanical properties of coatings, etc. The effect of extensive, simple experimental operation and low preparation cost

Active Publication Date: 2020-04-17
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the superhydrophobic coatings need to treat the substrate to a certain extent, then spray the modified inorganic particles on the surface of the substrate, and finally modify it with low surface energy substances (Progress in Organic Coatings: Self – cleaning superhydrophobic coatings: Potential industrial applications, 2019, 128: 52-58. Chemical Engineering Journal, Fabrication of high performance superhydrophobic coatings by spray-coating of polysiloxane modified halloysite nanotubes, 2017, 331). The mechanical properties of the layer are poor, the preparation method is too complicated, the cost is high, and it is not suitable for marketization requirements

Method used

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  • Preparation method of friction-resistant anti-icing coating layer
  • Preparation method of friction-resistant anti-icing coating layer
  • Preparation method of friction-resistant anti-icing coating layer

Examples

Experimental program
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preparation example Construction

[0023] (1) Preparation of liquid A: Weigh 0.1-0.5g trifluoropropyltrimethoxy, 0.1-1g silica particles (particle diameter 30±5nm) into a small beaker, then add 2-30g ethyl acetate After mixing, stir at room temperature to fully disperse silicon dioxide in ethyl acetate;

[0024] (2) Preparation of liquid B: Weigh 0.06-0.6g of epoxy resin or modified epoxy resin into a weighing bottle, then add 0.5-3g of ethyl acetate for mixing, and add 0.03-0.3g after fully stirring organic amine, stir and dissolve, add 0.1-0.5g of trifluoropropyltrimethoxysilane, and stir at room temperature to fully dissolve;

[0025] (3) Preparation of friction-resistant superhydrophobic coating: Add liquid B dropwise to liquid A under stirring conditions, and then stir at room temperature for 30-100 minutes;

[0026] (4) Preparation of coating: apply the coating in (3) by spraying, brushing or spin coating. Dry the prepared samples at 60-100°C.

[0027] In the step (1), the dosage of trifluoropropyltrim...

Embodiment 1

[0034] In this embodiment, the preparation method of the anti-friction and anti-icing coating, the specific steps are as follows:

[0035] (1) Preparation of liquid A: Weigh 0.1g of trifluoropropyltrimethoxy, 0.1g of silica particles (particle diameter: 30±5nm) into a small beaker, then add 2.5g of ethyl acetate, at room temperature Stir for 10 minutes to fully disperse silicon dioxide in ethyl acetate;

[0036] (2) Preparation of liquid B: Weigh 0.06g of bisphenol A type epoxy resin into a weighing bottle, then add 1g of ethyl acetate to mix, stir well and then add 0.03g of methylcyclopentadiamine, After stirring to dissolve, add 0.1g of trifluoropropyltrimethoxysilane, and stir at room temperature for about 10 minutes to fully dissolve;

[0037] (3) Preparation of friction-resistant superhydrophobic coating: Add liquid B dropwise to liquid A under stirring conditions, and then stir at room temperature for 30 minutes;

[0038] (4) Preparation of the coating: Brush the paint...

Embodiment 2

[0041] In this embodiment, the preparation method of the anti-friction and anti-icing coating, the specific steps are as follows:

[0042](1) Preparation of liquid A: Weigh 0.1g of trifluoropropyltrimethoxysilane and 0.2g of silicon dioxide particles (particle diameter: 30±5nm) into a small beaker, then add 5g of ethyl acetate, at room temperature Under stirring for 20 minutes, silicon dioxide is fully dispersed in ethyl acetate;

[0043] (2) Preparation of liquid B: Weigh 0.3g of acrylic modified epoxy resin into a weighing bottle, then add 2g of ethyl acetate for mixing, stir well, add 0.1g of polyetheramine, stir to dissolve and then add 0.5g of trifluoropropyltrimethoxysilane, stirred at room temperature for about 10 minutes to fully dissolve;

[0044] (3) Preparation of friction-resistant superhydrophobic coating: Add liquid B dropwise to liquid A under stirring conditions, and then stir at room temperature for 20 minutes;

[0045] (4) Coating preparation: Spin-coat the...

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Abstract

The invention relates to a preparation method of a friction-resistant anti-icing coating layer. The method comprises the steps: carrying out hydrophobic modification on nano silicon dioxide particlesby using fluorinated siloxane, adding epoxy resin or modified epoxy resin into ethyl acetate, uniformly mixing, adding an organic amine catalyst and trifluoropropyltrimethoxysilane, and uniformly stirring at room temperature to obtain modified mucilage; preparing a double-rough composite coating layer with a lotus leaf-like structure by utilizing a spraying or brush coating method. The porous coating layer has good super-hydrophobicity under a low-temperature condition, in addition, air in micropores of the coating layer can form an air isolation layer, and heat conduction can be reduced, so that an icing process can be delayed, and the anti-icing capability is achieved. The super-hydrophobic coating layer prepared by the preparation method disclosed by the invention not only has good super-hydrophobic and anti-icing properties, but also has good mechanical properties. Compared with the raw materials and the preparation process, the method disclosed by the invention is simpler, more economical and more practical.

Description

technical field [0001] The invention relates to the field of super-hydrophobic composite coatings, and mainly relates to a friction-resistant anti-icing coating and a preparation method thereof. The method is to mix modified nanoparticles and modified adhesive liquid through simple physical mixing, thereby Forms a highly adherent, anti-icing coating. Background technique [0002] In recent years, superhydrophobic materials have attracted people's attention because of their wide range of applications, both in the scientific research community and in the commercial market. However, there are still some difficulties in the widespread marketization of superhydrophobic materials. Cost issues, wear-resistant and weather-resistant issues, and application technology issues are the main difficulties faced at present. Most of the superhydrophobic coatings need to treat the substrate to a certain extent, then spray the modified inorganic particles on the surface of the substrate, and...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/62C09D7/63C09D5/16
CPCC09D163/00C09D7/62C09D7/63C09D5/1681C09D5/1662C09D5/1687C08K2201/011C08K9/06C08K3/36C08K5/5419
Inventor 谭新玉王嫚杨瑷碧涂伊藤余美玲
Owner CHINA THREE GORGES UNIV
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