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Coating containing porous filler as well as preparation method and use method thereof

A technology of porous fillers and coatings, applied in coatings, devices for coating liquids on surfaces, air quality improvement, etc., can solve the problems of weak contact between fillers and coatings, easy to be blocked, etc., and suppress the formation of smog Effect

Active Publication Date: 2020-11-17
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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  • Coating containing porous filler as well as preparation method and use method thereof
  • Coating containing porous filler as well as preparation method and use method thereof
  • Coating containing porous filler as well as preparation method and use method thereof

Examples

Experimental program
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 Immerse in water for 24 hours, after two times before and after the mass change is less than 0.1g, fully stir with 20g of commercially available latex paint (Baotashan exterior wall paint, solid content is about 50%), and use rosin water and methyl cellulose respectively as Thinner and thickener to adjust the viscosity of latex paint to porous 1.2-CN / SiO 2 After the suspension can be stabilized. It is evenly scraped on the glass plate by scraping method and the thickness of the scraping is controlled to be 500 μm (the thickness of the film after drying is about 80 μm, such as figure 2 Shown); tear off the film after natural drying ( Figure 4 ) and use the RhB degradation performance to evaluate its photocatalytic removal performance of liquid organic pollutants, the results are as follows Figure 5 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 Immerse in water for 24 hours, after two times before and after the mass change is less than 0.1g, fully stir with 20g of commercially available latex paint (Baotashan exterior wall paint, solid content is about 50%), and use rosin water and methyl cellulose respectively as Thinner and thickener to adjust the viscosity of latex paint to porous 1.2-CN / SiO 2 After the suspension can be stabilized. Apply it evenly on the glass plate by scraping method and control the scraping thickness to 500 μm (the thickness of the film after drying is about 80 μm); tear off the film after natural drying and use RhB degradation performance to evaluate its photocatalytic removal solution The performance of phase 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 4g of porous 1.2-CN / SiO with a pore size of 150 nm and a particle size of 100 μm 2 Immerse in water for 24 hours, after two times before and after the mass change is less than 0.1g, fully stir with 20g of commercially available latex paint (Baotashan exterior wall paint, solid content is about 50%), and use rosin water and methyl cellulose respectively as Thinner and thickener to adjust the viscosity of latex paint to porous 1.2-CN / SiO 2 After the suspension can be stabilized. It is evenly scraped on the glass plate by scraping method and the scraping thickness is controlled to be 500 μm (the thickness of the film after drying is about 80 μm); the film is torn off after natural drying, and the gas phase pollutants (NO) and liquid The phase pollutant (RhB) has adsorption and degradation properties.

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Abstract

The invention discloses a coating containing a porous filler as well as a preparation method and a use method of the coating, and belongs to the technical field of coatings. The preparation method comprises: completely absorbing water from the porous silicon dioxide gel particles loaded with the graphite phase carbon nitride, adding the porous silicon dioxide gel particles into the finished product coating, and adjusting the coating to a proper concentration to obtain the coating containing the porous filler. The method has the advantages of 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 paint and the filler and the coating are not firmly contacted due to a spraying method. The prepared coating containing the porous filler has very strong adsorption performance and degradation performance on haze. When in use, the coating surface is firstly coated with the primer and then coated with the coating containing the porous filler, so that VOCs in the air can be effectively adsorbed, and the formation of haze is inhibited 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 application method thereof. Background technique [0002] Smog is the general term of mist and haze, but the difference between the two is very large. The fine water droplets in the air are fog, which belongs to liquid, and will dissipate automatically after a certain period of time, and is generally harmless to the human body; haze is the gas formed by the mutual adsorption and reaction of solid particles and volatile organic pollutants (VOCs) in the air. The sol will not dissipate automatically without external force (wind, rain, etc.), which is extremely harmful to the human body. The formation of haze is mainly based on the tiny dust in the air as the central particle (PM2.5), which absorbs VOCs in the air to form a stable aerosol, causing the central particle to be suspended in the air for a long ...

Claims

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Application Information

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Patent Type & Authority Applications(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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