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Transparent pavement coating for photocatalytic purification of automobile exhaust and preparation method

A technology of automobile exhaust and photocatalysis, which is applied in the direction of chemical instruments and methods, separation methods, epoxy resin coatings, etc., can solve the problems of reducing the exhaust gas purification effect, photocatalyst shedding, and the difficulty of ensuring the firmness of photocatalyst loading, etc., and achieves improvement. Effects of rheological properties, uniform adhesion, firm load

Inactive Publication Date: 2020-07-31
成都市水泷头化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to ensure the firmness of photocatalyst loading, especially when it is used in road coatings. Due to the complex use conditions, photocatalysts often fall off and reduce the exhaust gas purification effect.

Method used

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  • Transparent pavement coating for photocatalytic purification of automobile exhaust and preparation method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Add nano-titanium dioxide, tetramethylammonium hydroxide, polyethyleneimine, carboxymethylcellulose, and simethicone into water, and continue ultrasonic dispersion to obtain slurry A; in slurry A, by weight In total, 10 parts of nano-titanium dioxide, 2 parts of tetramethylammonium hydroxide, 2 parts of polyethyleneimine, 1 part of carboxymethyl cellulose, 0.2 parts of simethicone, and 85 parts of water;

[0031] (2) Add glass powder, carboxymethyl cellulose, and simethicone to silica sol with a solid content of 10%, and continue ultrasonic dispersion to obtain slurry B; in slurry B, glass powder 70 parts, 0.5 parts of carboxymethyl cellulose, 0.3 parts of simethicone, 35 parts of silica sol;

[0032] (3) Immerse the polyurethane sponge in 10wt% sodium hydroxide solution, take it out after 24 hours, then wash and dry it to realize the pretreatment of the sponge;

[0033] (4) Use two glass plates to squeeze the pre-treated sponge until the volume does not shrink any...

Embodiment 2

[0038] (1) Add nano-titanium dioxide, tetramethylammonium hydroxide, polyethyleneimine, carboxymethylcellulose, and simethicone into water, and continue ultrasonic dispersion to obtain slurry A; in slurry A, by weight In total, 20 parts of nano-titanium dioxide, 1 part of tetramethylammonium hydroxide, 3 parts of polyethyleneimine, 0.7 part of carboxymethyl cellulose, 0.4 part of simethicone, and 80 parts of water;

[0039] (2) Add glass powder, carboxymethyl cellulose, and simethicone to silica sol with a solid content of 10%, and continue ultrasonic dispersion to obtain slurry B; in slurry B, glass powder 68 parts, 0.8 parts of carboxymethyl cellulose, 0.5 parts of simethicone, 32 parts of silica sol;

[0040] (3) Immerse the polyurethane sponge in 10wt% sodium hydroxide solution, take it out after 24 hours, then wash and dry it to realize the pretreatment of the sponge;

[0041] (4) Squeeze the pre-treated sponge with two glass plates until the volume no longer shrinks, di...

Embodiment 3

[0046] (1) Add nano-titanium dioxide, tetramethylammonium hydroxide, polyethyleneimine, carboxymethylcellulose, and simethicone into water, and continue ultrasonic dispersion to obtain slurry A; in slurry A, by weight In total, 16 parts of nano-titanium dioxide, 1 part of tetramethylammonium hydroxide, 3.5 parts of polyethyleneimine, 0.5 parts of carboxymethyl cellulose, 0.3 parts of simethicone, and 78 parts of water;

[0047] (2) Add glass powder, carboxymethyl cellulose, and simethicone to silica sol with a solid content of 10%, and continue ultrasonic dispersion to obtain slurry B; in slurry B, glass powder 65 parts, 1 part of carboxymethyl cellulose, 0.6 parts of simethicone, 32 parts of silica sol;

[0048] (3) Immerse the polyurethane sponge in 10wt% sodium hydroxide solution, take it out after 24 hours, then wash and dry it to realize the pretreatment of the sponge;

[0049] (4) Use two glass plates to squeeze the pretreated sponge until the volume does not shrink any...

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Abstract

The invention relates to the technical field of air purification coating, and provides transparent pavement coating for photocatalytic purification of automobile exhaust and a preparation method of the transparent pavement coating. The coating is composed of a photocatalytic filler, epoxy resin, water, a dispersing agent, a curing agent, a leveling agent and an antioxidant, wherein the photocatalytic filler is composed of nano titanium dioxide loaded on a framework formed by glass powder. A coating prepared from the coating has good adsorption capacity for automobile exhaust and good transmission capacity for natural light, and it can be guaranteed that a photocatalyst fully adsorbs the exhaust and makes full contact with the natural light. Particularly, according to the method, the photocatalyst is loaded in through hole channels of the carrier framework, the loading firmness is improved through bonding, and the situation that the tail gas purification effect is reduced due to fallingof the photocatalyst can be prevented.

Description

technical field [0001] The invention belongs to the technical field of air purification coatings, and provides a transparent road coating for photocatalytically purifying automobile exhaust and a preparation method thereof. Background technique [0002] With the improvement of the economic level, the number of cars has increased significantly. Cars burn gasoline while driving to produce a large amount of exhaust, mainly carbon monoxide, hydrocarbons, nitrogen oxides, etc., which seriously pollute the air on the one hand and destroy the ecological balance on the other. After the human body inhales automobile exhaust, it will cause harm to the respiratory system and immune system, causing hypoxia, poor breathing, memory loss, etc., as well as carcinogenic effects and interference with thinking ability. Therefore, all countries are actively taking effective measures to control vehicle exhaust pollution. [0003] At present, the main control methods for automobile exhaust poll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/62B01D53/94B01D53/62B01D53/56B01D53/44
CPCB01D53/9445B01D2258/01C08K2003/2241C09D7/62C09D163/00C08K13/06C08K9/12C08K3/40C08K3/22
Inventor 蔡杰
Owner 成都市水泷头化工科技有限公司
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