Nano TiO2 powder super-hydrophobic coating material as well as preparation method and application thereof

A super-hydrophobic coating and powder technology, applied in polyurea/polyurethane coatings, coatings, anti-corrosion coatings, etc., can solve problems such as environmental hazards, high cost of fluorine-containing substances, and poor hydrophobicity

Inactive Publication Date: 2020-10-30
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

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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 coati

Method used

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  • Nano TiO2 powder super-hydrophobic coating material as well as preparation method and application thereof
  • Nano TiO2 powder super-hydrophobic coating material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0022] Example 1

[0023] The preparation steps of superhydrophobic coating materials include the following:

[0024] Add 8 parts of nano TiO 2 The powder was added to a 5-fold amount of ethanol-water mixture with a volume ratio of 1:1, first dispersed by ultrasonic and then stirred for 1 hour, maintaining the temperature at 60°C. Add a small amount of triethylamine, and then slowly add 1 part of the silane coupling agent ethanol solution, make a full reaction for 2h under rapid stirring conditions, after the reaction is completed, aged at room temperature, suction filtered, washed with ethanol, dried at 80 ℃ Nano TiO 2 powder.

[0025] Add 80 parts of polyurethane and 10 parts of terpene resin to 80 parts of ethanol in a high-energy ball mill for 4-6 hours to obtain ultrafine suspension A. The above modified nano TiO 2 The powder, 0.6 parts of stearic acid, 1 part of zinc stearate, 0.3 parts of antioxidant 1024, and 0.5 parts of polyvinylpyrrolidone were added to 40 parts of ethan...

Example Embodiment

[0027] Example 2

[0028] The preparation steps of superhydrophobic coating materials include the following:

[0029] 14 parts of nano TiO 2 The powder was added to 5 times the volume of the ethanol-water mixture with a volume ratio of 1:1, first ultrasonically dispersed and then stirred for 2 hours, maintaining the temperature at 70°C. Add a small amount of triethylamine, and then slowly add 2 parts of silane coupling agent ethanol solution, make full reaction for 2h under rapid stirring conditions, after the reaction is completed, age at room temperature, suction filter, wash with ethanol, and dry at 80℃ Nano TiO 2 powder.

[0030] 90 parts of polyurethane and 12 parts of terpene resin are added to 80 parts of ethanol in a high-energy ball mill and ball milled for 4-6 hours to obtain an ultrafine suspension A. The above modified nano TiO 2 The powder, 0.9 parts of stearic acid, 1.5 parts of zinc stearate, 0.6 parts of antioxidant 1024, and 0.8 parts of polyvinylpyrrolidone were s...

Example Embodiment

[0032] Example 3

[0033] The preparation steps of superhydrophobic coating materials include the following:

[0034] 18 parts of nano TiO 2 The powder was added to a 5-fold amount of ethanol-water mixture with a volume ratio of 1:1, first dispersed by ultrasonic and then stirred for 2 hours, maintaining the temperature at 80°C. Add a small amount of triethylamine, and then slowly add 2.5 parts of silane coupling agent ethanol solution dropwise, make a full reaction for 3 hours under rapid stirring conditions, after the reaction is completed, aged at room temperature, suction filtered, washed with ethanol, and dried at 80 ℃ to obtain the modified Nano TiO 2 powder.

[0035] 100 parts of polyurethane and 14 parts of terpene resin are added to 80 parts of ethanol in a high-energy ball mill and ball milled for 5 hours to obtain ultrafine suspension A. The above modified nano TiO 2 The powder, 1.2 parts of stearic acid, 1.5 parts of zinc stearate, 0.8 parts of antioxidant 1024, and 1.0...

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Abstract

The invention discloses a nano TiO2 powder 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 to 100 parts of polyurethane, 10 to 16 parts of terpene resin, 8 to 20 parts of nano TiO2 powder, 1 to 3 parts of a silane coupling agent ethanol solution, 0.6 to 1.6 parts of stearic acid, 1 to 2 parts of zinc stearate, 0.3 to 0.8 part of an antioxidant and 0.5 to 1.5 parts of polyvinylpyrrolidone.

Description

technical field [0001] The invention relates to the field of superhydrophobic coating materials, especially a kind of nano TiO 2 Powder 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 cau...

Claims

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Application Information

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IPC IPC(8): C09D175/04C09D7/62C09D5/08
CPCC08K2003/2241C08K2201/011C08L2205/03C09D5/08C09D175/04C09D7/62C08L45/00C08K13/06C08K9/06C08K3/22
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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