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A kind of transparent antifouling coating material for glass, transparent antifouling coating and preparation method thereof

An antifouling coating and transparent technology, applied in the coating field of glass surface, can solve the problems of inability to obtain transparency at the same time, complicated process, use of toxic reagents, etc., and achieve easy industrial promotion and daily application, excellent transparency, preparation Simple and convenient method

Active Publication Date: 2018-03-16
单简文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the problems that the existing preparation methods of hydrophobic antifouling coatings often use toxic reagents, the process is complicated, and the transparency cannot be obtained at the same time, and a transparent antifouling coating material for glass is provided. Transparent antifouling coating and preparation method thereof

Method used

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  • A kind of transparent antifouling coating material for glass, transparent antifouling coating and preparation method thereof
  • A kind of transparent antifouling coating material for glass, transparent antifouling coating and preparation method thereof
  • A kind of transparent antifouling coating material for glass, transparent antifouling coating and preparation method thereof

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Effect test

Embodiment 1

[0038] (1) Weigh 1.0 g of commercially available fumed silica nanoparticles (specific surface area is 300 m 2 / g) and 20 g of anhydrous ethanol, the fumed silica nanoparticles are dispersed in ethanol by an ultrasonic disperser to obtain a uniform and stable dispersion.

[0039] (2) 0.5 g of methyltriethoxysilane was added to the above dispersion liquid, and a few drops of hydrochloric acid with a concentration of 1 mol / L were added dropwise to adjust the pH value of the mixed dispersion liquid between 4 and 5.

[0040] (3) Cut out a certain size of polyester rag cloth strip, soak the cloth strip with the above mixed dispersion liquid. The glass surface was wiped with the woven cloth, and then the glass was left at room temperature for 3 hours to form a clear antifouling coating.

[0041] The contact angle of the transparent antifouling coating to water droplets measured by a contact angle tester was 146.5° ( figure 1 ), the roll angle is about 25°. figure 2 It shows that ...

Embodiment 2

[0044] (1) Weigh 1.0 g of commercially available fumed silica nanoparticles (specific surface area is 300 m 2 / g) and 20 g of anhydrous ethanol, the fumed silica nanoparticles are dispersed in ethanol by an ultrasonic disperser to obtain a uniform and stable dispersion.

[0045] (2) 0.5 g of hexadecyltrimethoxysilane was added to the above dispersion liquid, and a few drops of hydrochloric acid with a concentration of 1 mol / L were added dropwise to adjust the pH value of the mixed dispersion liquid between 4 and 5.

[0046] (3) Cut out a certain size of polyester rag cloth strip, soak the cloth strip with the above mixed dispersion liquid. The glass surface was wiped with the woven cloth, and then the glass was left at room temperature for 3 hours to obtain a transparent antifouling coating.

[0047] The transparent antifouling coating has a contact angle of 135.0° and a rolling angle of 30°. Other properties such as transparency, self-cleaning ability, etc. are the same as ...

Embodiment 3

[0049] (1) Weigh 1.0 g of commercially available fumed silica nanoparticles (specific surface area is 100 m 2 / g) and 20 g of anhydrous ethanol, the fumed silica nanoparticles are dispersed in ethanol by an ultrasonic disperser to obtain a uniform and stable dispersion.

[0050] (2) 0.5 g of methyltriethoxysilane was added to the above dispersion liquid, and a few drops of hydrochloric acid with a concentration of 1 mol / L were added dropwise to adjust the pH value of the mixed dispersion liquid between 4 and 5.

[0051] (3) Cut out a certain size of polyester rag cloth strip, soak the cloth strip with the above mixed dispersion liquid. The glass surface was wiped with the woven cloth, and then the glass was left at room temperature for 2 hours to obtain a transparent antifouling coating.

[0052] The transparent antifouling coating has a contact angle of 135.0° and a rolling angle of 30°. Other properties such as transparency, self-cleaning ability, etc. are similar to Examp...

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Abstract

The invention discloses a transparent anti-fouling coating material for glass, a transparent anti-fouling coating and a preparation method thereof. The material comprises a mixed dispersion composed of fumed silicon dioxide nanoparticles, a low surface energy binder and a solvent . The invention also discloses a preparation method of the transparent antifouling coating, wherein the mixed dispersion of fumed silica nanoparticles and low surface energy binder is applied to a glass substrate to prepare a coating with a micro-nano structure, at room temperature solidify. The hydrophobic coating material and the preparation method thereof provided by the invention have less demand for equipment, non-toxic raw materials, low use cost, simple method, convenient application, and can be used to prepare large-area transparent antifouling coatings; the prepared coating has Excellent hydrophobicity, transparency, antifouling and recoatability.

Description

technical field [0001] The present invention relates to the technical field of antifouling coating materials, in particular to a renewable coating for glass surfaces which has both optical transparency and can prevent the surface from being polluted. Background technique [0002] Glass is used in all aspects of production and life, and it is desirable to keep it clean and transparent. In daily life, the pollutants of glass are mainly water droplets, mud droplets, coffee, etc., and the hydrophobic surface has the characteristics of waterproof and self-cleaning. Therefore, the development of surfaces with hydrophobic and antifouling properties has attracted extensive attention and attention of scientists. The preparation of hydrophobic surfaces generally needs to meet two key factors: First, the surface has a micro-scale structure. When water droplets are in contact with the surface, the surface cannot be completely infiltrated, and air is trapped inside the microstructure to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/30C03C17/25
Inventor 单简文
Owner 单简文
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