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A kind of coating containing porous filler and its preparation method and use method

A technology of porous fillers and coatings, applied in coatings, devices for applying liquid to surfaces, latex paints, etc., can solve the problems of weak contact between fillers and coatings, easy to be blocked

Active Publication Date: 2022-07-05
西安凡星生物科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above problems, the present invention discloses a coating containing porous fillers and its preparation method and application method. The preparation conditions are mild, the process is simple, the raw materials are cheap, and the repeatability is good. It solves the problem that the pore structure of the filler is easily blocked in the coating. And the spraying method leads to the problem that the contact between the filler and the coating is not firm, and the resulting paint film has strong adsorption and degradation properties for haze

Method used

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  • A kind of coating containing porous filler and its preparation method and use method
  • A kind of coating containing porous filler and its preparation method and use method
  • A kind of coating containing porous filler and its preparation method and use method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0054] Take 3 g of porous 1.2-CN / SiO with a pore size of 150 nm and a particle size of 100 μm 2 After soaking in water for 24 hours, after the two times before and after the weight change is less than 0.1g, it is fully stirred with 20g of commercially available latex paint (Pagoda Mountain exterior wall paint, solid content is about 50%), with rosin and methyl cellulose as the Thinner and thickener to adjust latex paint viscosity to porous 1.2-CN / SiO 2 After stable suspension. It is evenly coated on the glass plate by the blade coating method and the thickness of the blade coating is controlled to be 500 μm (the film thickness after drying is about 80 μm, such as figure 2 shown); peel off the film after natural drying ( Figure 4 ) and the degradation performance of RhB was used to evaluate its photocatalytic removal performance of liquid-phase organic pollutants. The results are as follows: Image 6 shown.

Embodiment 2

[0056] Take 2.5 g of porous 1.2-CN / SiO with a pore size of 150 nm and a particle size of 100 μm 2 After soaking in water for 24 hours, after the two times before and after the weight change is less than 0.1g, it is fully stirred with 20g of commercially available latex paint (Pagoda Mountain exterior wall paint, solid content is about 50%), with rosin and methyl cellulose as the Thinner and thickener to adjust latex paint viscosity to porous 1.2-CN / SiO 2 After stable suspension. It was evenly coated on the glass plate by the blade coating method and the thickness of the blade coating was controlled to be 500 μm (the thickness of the film after drying was about 80 μm); The performance of the organic pollutants, the results show that because the porous structure of the filler is completely covered, there is no adsorption and degradation performance.

Embodiment 3

[0058] Take 4 g of porous 1.2-CN / SiO with a pore size of 150 nm and a particle size of 100 μm 2 After soaking in water for 24 hours, after the two times before and after the weight change is less than 0.1g, it is fully stirred with 20g of commercially available latex paint (Pagoda Mountain exterior wall paint, solid content is about 50%), with rosin and methyl cellulose as the Thinner and thickener to adjust latex paint viscosity to porous 1.2-CN / SiO 2 After stable suspension. It is evenly coated on the glass plate by the blade coating method and the thickness of the blade coating is controlled to be 500 μm (the thickness of the film after drying is about 80 μm); Phase pollutants (RhB) have adsorption degradation properties.

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Abstract

The invention discloses a coating containing porous fillers, a preparation method and a using method thereof, and belongs to the technical field of coatings. After fully absorbing water, the porous silica gel particles supporting the graphite phase carbon nitride are added to the finished paint, and adjusted to an appropriate concentration to obtain a paint containing a porous filler. The method has mild preparation conditions, simple process, cheap raw materials and good repeatability, and solves the problems that the pore structure of the filler is easily blocked in the coating and the spray method causes the filler to be in weak contact with the coating. The prepared coating containing porous fillers has strong adsorption performance and degradation performance for haze. When in use, the coating surface is first coated with primer, and then coated with a coating containing porous fillers, which can effectively absorb VOCs in the air and inhibit the formation of haze from the source.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a coating containing porous fillers and a preparation method and use method thereof. Background technique [0002] Smog is a general term for fog and haze, but there is a big difference between the two. The fine water droplets in the air are mist, which is a liquid and will automatically dissipate after a certain period of time, and is generally harmless to the human body; haze is a gas formed by the mutual adsorption and reaction of solid particles and volatile organic pollutants (VOCs) in the air. The sol will not disperse automatically without external force (wind, rain, etc.), which is extremely harmful to the human body. The formation of haze is mainly based on tiny dust in the air as the central particle (PM2.5), which adsorbs VOCs in the air to form a stable aerosol, causing the central particle to be suspended in the air for a long time, making the air turbi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D7/62C09D5/02B05D7/26
CPCC09D7/62C09D7/70B05D7/26C09D5/024Y02A50/20
Inventor 杨晨榕马永宁费贵强王海花李瑞吴晓静吴瑶佳雷佩
Owner 西安凡星生物科技有限责任公司
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