Super-hydrophobic paint with super-strong mechanical properties and preparation method thereof

A technology with mechanical properties and super-hydrophobicity, applied in coatings, epoxy resin coatings, polyether coatings, etc., can solve the problems of weak mechanical properties, difficult to prepare the surface of various substrates, etc. Wetting-response properties, the effect of increasing the range of applications

Inactive Publication Date: 2020-09-04
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a super-hydrophobic paint with super-strong mechanical properties and a preparation method thereof, which solves the technical problems that responsive super-wetting materials generally have weak mechanical properties and are difficult to prepare on the surface of various substrates

Method used

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  • Super-hydrophobic paint with super-strong mechanical properties and preparation method thereof
  • Super-hydrophobic paint with super-strong mechanical properties and preparation method thereof
  • Super-hydrophobic paint with super-strong mechanical properties and preparation method thereof

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preparation example Construction

[0028] refer to figure 1 , the present invention also provides the preparation method of the superhydrophobic paint of above-mentioned super strong mechanical property, comprises the following steps:

[0029] Step S1, weighing 1-10 parts of epoxy resin and 0.4-2.4 parts of polyethylene glycol in parts by mass, mixing them, adding absolute ethanol, and magnetically stirring;

[0030] Step S2, adding absolute ethanol to 1 to 2.5 parts of titanium dioxide in parts by mass, and magnetically stirring;

[0031] Step S3, mixing the solution of step S1 and the solution of step S2, adding 1.6-5 parts of 1H,1H,2H,2H-perfluorooctyltriethoxysilane, 0.02-0.12 parts of poly( N-isopropylacrylamide), 0.1-1.2 parts of fluorosilane, 0.2-1.2 parts of curing agent, magnetic stirring, and ultrasonic treatment to obtain super-hydrophobic paint.

Embodiment 1

[0034] In a 100mL beaker, add 5g of epoxy resin and 2.0g of polyethylene glycol, then add 30mL of absolute ethanol solution, then stir in a magnetic stirrer for 15min; weigh 1.5g of titanium dioxide particles (P25 titanium dioxide and 200nm anatase The mass ratio of ore titanium dioxide is 2.0:1) into a 250mL blue-necked bottle, then add 70mL of absolute ethanol solution, and then magnetically stir for 15min; mix the epoxy resin and titanium dioxide solution, then add 3.5g1H, 1H, 2H,2H-Perfluorooctyltriethoxysilane, magnetically stirred for 15min, ultrasonically treated for 15min, repeated stirring and ultrasonically for 2 times; then added 0.1g poly(N-isopropylacrylamide), stirred and ultrasonically treated for 5min each ; Finally, add 0.6g fluorosilane and 0.8g ethylenediamine, stir magnetically for 5min, ultrasonicate for 10min, and stir magnetically for 5min again to obtain a superhydrophobic paint.

[0035] In Example 1, every 1 g is one serving.

[0036] The paint prepa...

Embodiment 2

[0042] In a 100mL beaker, add 8g of epoxy resin and 0.6g of polyethylene glycol, then add 30mL of absolute ethanol solution, and then stir in a magnetic stirrer for 15min; weigh 2.0g of titanium dioxide particles (P25 titanium dioxide and 200nm anatase The mass ratio of ore titanium dioxide is 1:1) into a 250mL blue bottle, then add 70mL of absolute ethanol solution, and then magnetically stir for 15min; mix the epoxy resin and titanium dioxide solution, then add 2.0g1H, 1H, 2H,2H-Perfluorooctyltriethoxysilane, magnetic stirring for 15min, ultrasonic treatment for 15min, stirring and ultrasonic treatment repeated twice; then add 0.05g poly(N-isopropylacrylamide), stirring and ultrasonic treatment for 5min each ;Finally, add 0.5g fluorosilane and 1.0g hexamethylenediamine, stir magnetically for 5min, treat with ultrasonic for 10min, and stir magnetically again for 5min to obtain the superhydrophobic paint.

[0043] In Example 2, every 1 g is one serving.

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Abstract

The invention provides a super-hydrophobic paint with super-strong mechanical properties. The material is prepared from the following raw materials in parts by mass. The paint is prepared from the following components in parts by weight: 1 to 10 parts of epoxy resin, 0.4 to 2.4 parts of polyethylene glycol, 1 to 2.5 parts of titanium dioxide, 1.6 to 5 parts of 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane, 0.02 to 0.12 part of poly (N-isopropylacrylamide), 0.1 to 1.2 parts of fluorosilane and 0.2 to 1.2 parts of curing agent. The invention also provides a preparation method of the super-hydrophobic paint. The super-hydrophobic paint provided by the invention solves the technical problems that a responsive super-wetting material is generally weak in mechanical property and is not easy to prepare on the surfaces of various base materials.

Description

technical field [0001] The invention relates to the field of preparation and application of superwetting responsive materials, in particular to a superhydrophobic paint with super strong mechanical properties and a preparation method thereof. Background technique [0002] The wettability of materials is judged by the surface water contact angle (WCA), which can be divided into four types, namely superhydrophilic, hydrophilic, hydrophobic, and superhydrophobic. When WCA<10°, the surface is called superhydrophilic material; when 10°<WCA<90°, the surface is hydrophilic material; when 90°<WCA<150°, the surface is hydrophobic material; when When WCA>150°, the surface is a superhydrophobic material. The main method of preparing special wettability materials is to construct the microstructure and modify the chemical composition of the surface. [0003] The research on wettability materials mainly focuses on responsive wettability materials. When there are exter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D171/02C09D133/24C09D7/62C09D7/63
CPCC08K2003/2241C08K2201/003C08K2201/011C08K2201/014C08L2205/03C09D163/00C09D7/62C09D7/63C08L71/02C08L33/24C08K9/06C08K5/5419C08K3/22
Inventor 夏帆朱海
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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