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Super-hydrophobic coating material as well as preparation method and application thereof

A super-hydrophobic coating and ultrasonic technology, applied in coatings, anti-corrosion coatings, underwater operating equipment, etc., can solve problems such as poor hydrophobicity, high cost of fluorine-containing substances, and adverse environmental impacts, and achieve the goal of coating Good hydrophobic performance, long service life and good protective effect

Inactive Publication Date: 2020-10-16
佛山市南海区里水镇经济促进局 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN107629653A discloses an outer protective coating for crawler tracks, which can greatly improve the wear resistance of track tracks, but its hydrophobicity is not very good, and the tri-n-butylamine used in it is highly toxic, which brings inconvenience to the preparation. bad impact on the environment
In order to improve the hydrophobicity of coatings, some researchers use fluorine-containing substances to reduce the surface energy of materials, but fluorine-containing substances are expensive and have certain harm to the environment, or use fluorine-free polymer coatings containing silicon-oxygen bonds , but there are certain problems in its binding force, and it is easy to peel off during exercise

Method used

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  • Super-hydrophobic coating material as well as preparation method and application thereof
  • Super-hydrophobic coating material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation step of superhydrophobic coating material comprises the following:

[0024] In the aqueous ethanol solution with a volume ratio of 3:1, add 10 parts of MoS 2 powder, 2 parts nano-Al 2 o 3 and 15 parts of silane coupling agent, first ultrasonic at room temperature for 2 hours, then add an appropriate amount of hydrochloric acid solution, adjust the pH to 4~5, heat, stir rapidly at 70~80°C for 3 hours to fully react, after the reaction is completed, age at room temperature, pump filtered, washed with aqueous ethanol, dried at 80 °C, and ground to obtain modified MoS 2 / Al 2 o 3 Composite particle powder.

[0025] Add 80 parts of polyurethane and 8 parts of terpene resin to 80 parts of ethanol and place in a high-energy ball mill for 4-6 hours to obtain superfine suspension A.

[0026] The above modified MoS 2 / Al 2 o 3 Add the powder and 1.0 parts of polyvinylpyrrolidone to 30 parts of ethanol, heat to 40°C, ultrasonically disperse and stir vigoro...

Embodiment 2

[0030] The preparation step of superhydrophobic coating material comprises the following:

[0031] In the aqueous ethanol solution with a volume ratio of 3:1, add 15 parts of MoS 2 powder, 3 parts nano-Al 2 o 3 and 20 parts of silane coupling agent, first ultrasonic at room temperature for 2 hours, then add an appropriate amount of hydrochloric acid solution, adjust the pH to 4-5, heat, stir rapidly at 70-80°C for 3 hours to fully react, after the reaction is completed, age at room temperature, pump filtered, washed with aqueous ethanol, dried at 80 °C, and ground to obtain modified MoS 2 / Al 2 o 3 Composite particle powder.

[0032] Add 85 parts of polyurethane and 10 parts of terpene resin to 80 parts of ethanol and place in a high-energy ball mill for 4-6 hours to obtain superfine suspension A.

[0033] The above modified MoS 2 / Al 2 o 3 Add the powder and 1.5 parts of polyvinylpyrrolidone to 30 parts of ethanol, heat to 40°C, ultrasonically disperse and stir vigor...

Embodiment 3

[0037] The preparation step of superhydrophobic coating material comprises the following:

[0038] In the aqueous ethanol solution with a volume ratio of 3:1, add 15 parts of MoS 2 powder, 3 parts nano-Al 2 o 3 and 20 parts of silane coupling agent, first ultrasonic at room temperature for 2 hours, then add an appropriate amount of hydrochloric acid solution, adjust the pH to 4-5, heat, stir rapidly at 70-80°C for 3 hours to fully react, after the reaction is completed, age at room temperature, pump filtered, washed with aqueous ethanol, dried at 80 °C, and ground to obtain modified MoS 2 / Al 2 o 3 Composite particle powder.

[0039] Add 95 parts of polyurethane and 10 parts of terpene resin to 80 parts of ethanol and place in a high-energy ball mill for 4-6 hours to obtain superfine suspension A.

[0040] The above modified MoS 2 / Al 2 o 3 Add the powder and 1.5 parts of polyvinylpyrrolidone to 30 parts of ethanol, heat to 40°C, ultrasonically disperse and stir vigor...

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Abstract

The invention discloses a super-hydrophobic coating material as well as a preparation method and application thereof. The super-hydrophobic coating material is prepared from the following components in parts by mass: 120 parts of ethanol, 80-100 parts of polyurethane, 8-12 parts of terpene resin, 10 to 20 parts of molybdenum disulfide, 2 to 4 parts of nanometer aluminum oxide, 15 to 20 parts of asilane coupling agent, 1 to 2 parts of graphene, 1 to 2 parts of silicon carbide, 0.6 to 1.6 parts of stearic acid, 1 to 2 parts of zinc stearate, 1.0 to 1.5 parts of polyvinylpyrrolidone, 0.3 to 0.8part of an antioxidant and 0.5 to 1.0 part of ethyl lauroyl arginate hydrochloride.

Description

technical field [0001] The invention relates to the field of superhydrophobic coating materials, in particular to a superhydrophobic coating material and its preparation method and application. Background technique [0002] With the needs of the development of human society and the progress of science and technology, the scale of underwater engineering is getting larger and larger, and more and more needs to be used in the investigation and detection of underwater resources, rescue and lifesaving, ocean development, and hull surface cleaning operations. to underwater robots. Underwater robots work underwater for a long time, and the relevant components will be eroded by seawater / sewage. The salt in seawater will accelerate the aging or corrosion of the crawler tracks. Clean the crawler tracks in time after use in such an environment; It will rub against sand, gravel, mud or other foreign objects in water to cause wear. In order to minimize the loss caused by corrosion and ...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/61C09D7/62C09D7/63C09D7/65C09D5/08B63C11/52B63H19/08
CPCB63C11/52B63H19/08C08K2003/2227C08K2003/3009C08K2201/011C08L2205/03C09D5/08C09D175/04C09D7/61C09D7/62C09D7/63C09D7/65C08L45/00C08L39/06C08K13/06C08K9/06C08K3/30C08K3/22C08K3/042C08K3/34C08K5/09C08K5/098
Inventor 曾晖王义珍
Owner 佛山市南海区里水镇经济促进局
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