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TiO2 composite hydrophobic icephobic coating and preparation method thereof

A coating, hydrophobic technology, applied in coatings, anti-fouling/underwater coatings, anti-corrosion coatings, etc., can solve the problems of loss of manpower, financial resources, and the inability to achieve the effect of anti-icing, and achieve extended icing time, preparation Low cost and uniform film formation

Active Publication Date: 2019-03-29
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But these methods are passive deicing, not only can not achieve the effect of anti-icing, but also lose a lot of manpower and financial resources

Method used

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  • TiO2 composite hydrophobic icephobic coating and preparation method thereof
  • TiO2 composite hydrophobic icephobic coating and preparation method thereof
  • TiO2 composite hydrophobic icephobic coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Self-cleaning of glass substrates

[0026] (1) Preparation of TiO 2 Colloid: A solution (take 17ml n-tetrabutyl titanate, mix 4.035g diethanolamine and 57.5ml absolute ethanol in a beaker, and stir in a magnetic stirrer for half an hour.) B solution (0.9ml deionized water, 25ml anhydrous water ethanol mixed with 0.045g urea). Add solution B to solution A dropwise, and stir at room temperature for 24 hours.

[0027] (2) TiO 2 Preparation of slurry: 8 g of isopropyl titanate, 8 g of dodecylamine, and 360 ml of absolute ethanol were mixed and stirred uniformly as a precursor solution. Dissolve 8g of urea in 120ml of deionized water, add the urea solution dropwise to the precursor solution and stir vigorously, and stir magnetically for 12 hours after the addition to prepare TiO 2 colloid. Take 360ml TiO 2 The colloid was put into the reactor and grown by hydrothermal treatment at 200°C for 12 hours, and the TiO grown by hydrothermal 2 Wash with absolute ethanol and c...

Embodiment 2

[0035] Anti-icing of aluminum sheet and glass substrate

[0036] (1) Preparation of TiO 2 Colloid: Solution A (take 15ml n-tetrabutyl titanate, mix 4g diethanolamine and 48ml absolute ethanol in a beaker, and stir in a magnetic stirrer for half an hour.) B solution (0.9ml deionized water, 25ml absolute ethanol and 0.045g urea). Add solution B to solution A dropwise, and stir at room temperature for 24 hours.

[0037] (2) TiO 2 Preparation of slurry: 8 g of isopropyl titanate, 8 g of dodecylamine, and 360 ml of absolute ethanol were mixed and stirred uniformly as a precursor solution. Dissolve 8g of urea in 120ml of deionized water, add the urea solution dropwise to the precursor solution and stir vigorously, and stir magnetically for 12 hours after the addition to prepare TiO 2 colloid. Take 360ml TiO 2 The colloid was put into the reactor and grown by hydrothermal treatment at 230°C for 12 hours, and the TiO grown by hydrothermal 2 Wash with absolute ethanol and centri...

Embodiment 3

[0044] Anti-corrosion of iron substrate

[0045] (1) TiO 2 Thin film: Dip the cleaned iron sheet into TiO 2 Sol (TiO in embodiment 2 2 Coating a layer of TiO on the surface of the iron sheet by the pulling method in the sol) 2 The film was dried in an oven at 70°C for 30 minutes and then put in a muffle furnace at 480°C for 40 minutes;

[0046] (2) TiO 2 Slurry coating: After the iron sheet in (1) is cooled to room temperature, scrape a layer of TiO on the surface of the coated iron sheet 2 The slurry was dried in an oven at 60°C for 20 minutes and then placed in a muffle furnace at 450°C for 1 hour;

[0047] (3) Hydrophobic modification: Spray the hydrophobic solution on the sample of (2) with a watering can, let it stand at room temperature for 10 minutes, and then put it in an oven at 140°C to dry for 2 hours;

[0048] (4) Immerse the iron sheet treated in step (3) and the untreated iron sheet in a 10% NaCl solution. After a period of time, comparing the corrosion co...

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Abstract

The invention relates to a nano-material and a method for preparing a coating, particularly a method for preparing a titanium dioxide composite coating mainly by a hydrothermal method and a sol-gel method so as to form a superhydrophobic film. The superhydrophobic film prepared has the characteristics of a large static water contact angle, a small rolling angle and a wide application matrix range,the static water contact angle on a glass substrate can reach 162 degrees, and the rolling angle is less than 1 degree. This coating has a self-cleaning effect like a lotus leaf structure, and in addition, the film can provide good anti-icing and anti-corrosion effects.

Description

technical field [0001] A kind of TiO 2 The composite hydrophobic and ice-repellent coating and its preparation method belong to the field of materials and environment, and mainly relate to outdoor metal and glass buildings that are easy to be corroded, dust-polluted and easy to freeze. The coating can effectively improve the anti-fouling, anti-corrosion and Anti-icing ability. Background technique [0002] The problem of icing has brought harm to human society for a long time. With global warming and frequent occurrence of extreme weather, the problem of icing disasters has become more and more serious. Among them, the problem of icing on transmission lines has seriously threatened people's lives and the economic lifeline of society. In addition, the metal on the line and the corrosion of metal devices in the pipeline transportation bring social and economic losses that cannot be ignored. Therefore, it is of great significance to study new materials for anti-icing and ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/16C09D5/08
CPCC09D1/00C09D5/08C09D5/1656
Inventor 谭新玉王嫚李炜杨瑷碧付翊航向鹏
Owner CHINA THREE GORGES UNIV
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