A kind of adsorption porous coating material and its preparation method and application

A porous coating and adsorption technology, applied in the field of adsorption porous coating materials and their preparation, can solve the problems of occlusion of optical lenses of imaging equipment, inability to perform effective shooting, poor light transmittance of the coating, etc., and achieves great application prospects, The effect of high hydrophobicity and good light transmission

Active Publication Date: 2021-05-11
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

However, the coating has poor light transmittance. Although the coating of the underwater environment camera system can reduce the wear caused by the friction between the equipment and foreign objects in the water, it will cause the optical lens of the camera equipment to be blocked, and the light transmittance will be greatly reduced, making it impossible to carry out effective shooting

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  • A kind of adsorption porous coating material and its preparation method and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation steps of porous adsorption material include the following:

[0026] Mix tetraethoxysilane, dimethyldimethoxysilane, hexadecyltrimethoxysilane, and isopropanol at a controlled temperature of 30°C at a volume ratio of 10:15:10:23 and stir evenly . After stirring for 30 min, hydrochloric acid (0.1 mol / L) was added to adjust the pH value to 3. After stirring for 2 h, continue to add ammonia water (5 mol / L) to adjust the pH value to 10. After stirring for 15 min, the mixed solution was poured into a closed container.

[0027] After the sample is formed, in order to prevent alcohol volatilization and surface cracking, it is necessary to add a certain amount of isopropanol to cover it for aging. The total aging time was 2 days.

[0028] The material obtained by aging is subjected to microwave drying to obtain a porous adsorption material. Finally, a layer of xylene derivatives is deposited by vapor deposition to improve the stability of the material.

[0...

Embodiment 2

[0031] The preparation steps of porous adsorption material include the following:

[0032] Mix tetraethoxysilane, dimethyldimethoxysilane, hexadecyltrimethoxysilane and isopropanol at a volume ratio of 8:15:13:20 at a controlled temperature of 30°C and stir evenly . After stirring for 30 min, acetic acid (1 mol / L) was added to adjust the pH value to 4. After stirring for 2 h, continue to add ammonia water (5 mol / L) to adjust the pH value to 9. After stirring for 15 min, the mixed solution was poured into an airtight container and gelled at room temperature.

[0033] After the sample is formed, in order to prevent the volatilization of isopropanol and the cracking of the gel surface, it is necessary to add a certain amount of isopropanol to cover it for aging. The total aging time was 3 days.

[0034] The wet gel obtained by aging is subjected to microwave drying to obtain a porous adsorption material. Finally, a layer of p-xylene derivatives is deposited by vapor depositi...

Embodiment 3

[0037] The preparation steps of porous adsorption material include the following:

[0038] Mix tetraethoxysilane, dimethyldimethoxysilane, hexadecyltrimethoxysilane and isopropanol at a volume ratio of 9:16:15:15 at a controlled temperature of 30°C and stir evenly . After stirring for 30 min, acetic acid (1 mol / L) was added to adjust the pH value to 5. After stirring for 2 h, continue to add ammonia water (5 mol / L) to adjust the pH value to 10. After stirring for 15 min, the mixed solution was poured into an airtight container and gelled at room temperature.

[0039] After the sample is formed, in order to prevent the isopropanol from volatilizing and cracking the surface, it is necessary to add a certain amount of isopropanol to cover it for aging. The total aging time was 3 days.

[0040] The wet gel obtained by aging is subjected to microwave drying to obtain a porous adsorption material. Finally, a layer of xylene derivatives is deposited by vapor deposition to improv...

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Abstract

The invention discloses an adsorptive porous coating material, a preparation method and application thereof. The porous adsorption coating material is to mix tetraethoxysilane, dimethyldimethoxysilane, hexadecyltrimethoxysilane, and isopropanol, and then mix and stir under certain conditions to pass through the gel. , aging, and supercritical drying. The absorbent porous coating material has the characteristics of good light transmission, hydrophobicity and high specific surface area; the absorbent porous coating material is coated on the surface of the optical lens of the underwater camera equipment, and then coated with white oil, The two together form a transparent waterproof lubricating coating, the water contact angle can reach 100-140 degrees, and the specific surface area can reach 500-1100m 2 / g; By using the adsorptive porous coating material of the present invention, the wear and tear caused by the friction between the underwater camera equipment and foreign matter in the water can be effectively reduced, and its service life can be prolonged without affecting the normal shooting of the camera equipment underwater. Greater application prospects.

Description

technical field [0001] The invention relates to the technical field of transparent lubricating coatings, in particular to an adsorptive porous coating material and its preparation method and application. Background technique [0002] At present, the development and utilization of the ocean by human beings has been rapidly developed, and the number of ocean engineering involved is increasing day by day. Underwater equipment with operating functions has been widely used. The operating tasks of underwater robots are mainly completed by the carried underwater robots and special underwater camera sensing devices. With the continuous development of lubrication theory and lubricating materials, the protective effect of adsorption coating on optical lenses of imaging equipment is becoming more and more important. A coating with good performance can help reduce equipment wear, and can also reduce wear caused by friction between equipment and foreign objects in water, prolong the se...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D183/04G02B1/14G02B1/18
CPCC08G77/04C09D4/00C09D183/04G02B1/14G02B1/18
Inventor 曾晖王义珍林锐
Owner 佛山市南海区里水镇经济促进局
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