Paint for automobile exhaust purification in tunnel and underground car park

A technology for underground parking lots and automobile exhaust, applied in the field of functional coatings, can solve the problems of increasing initial investment and operating costs, and achieve the effects of convenient construction, enhanced treatment effect, and large specific surface area

Inactive Publication Date: 2008-05-14
SHENZHEN OCEANPOWER NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Paint for automobile exhaust purification in tunnel and underground car park
  • Paint for automobile exhaust purification in tunnel and underground car park

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Put 10kg of water, 2kg of propylene glycol, 0.15kg of defoamer, 0.8kg of dispersant, and 0.3kg of wetting agent into the grinding tank, and stir at 450rpm for 15mins;

[0037] At 500rpm, add 10kg of negative ion powder, 5kg of heavy calcium carbonate, 10kg of light calcium carbonate, 6kg of ultrafine diatomaceous earth, and 15kg of ordinary titanium dioxide into the grinding tank in sequence, and then at 3000rpm at high speed Disperse for 20mins, then add 15kg of photocatalytic nano-titanium dioxide slurry, and sand at 4000rpm for 45mins;

[0038] Transfer the sanded slurry to the paint mixing tank, add 25kg of silicon acrylic emulsion under stirring at 400rpm, the remaining 0.15kg of defoamer, 0.3kg of leveling agent, 0.3kg of thickener, and continue stirring for 20mins rear discharge;

[0039] Prepared photocatalytic negative ion coating, according to 5m 2 The amount of brushing / kg can be sprayed on the inner wall of tunnels and underground parking lots.

Embodiment 2

[0041] Put 10kg of water, 2kg of propylene glycol, 0.15kg of defoamer, 1.0kg of dispersant, and 0.3kg of wetting agent into the grinding tank, and stir at 500rpm for 20mins;

[0042] At 500rpm, add 8kg of negative ion powder, 5kg of heavy calcium carbonate, 5kg of light calcium carbonate, 5kg of ultrafine diatomaceous earth, and 10kg of ordinary titanium dioxide into the grinding tank in sequence, and then at 3000rpm at high speed Disperse for 20mins, then add 22.5kg of photocatalytic nano-titanium dioxide slurry, and then sand mill at 4000rpm for 45mins;

[0043] Transfer the sanded slurry to the paint mixing tank, add 30kg of silicon acrylic emulsion under stirring at 500rpm, the remaining 0.15kg of defoamer, 0.3kg of leveling agent, and 0.6kg of thickener, and continue stirring for 20mins rear discharge;

[0044] The prepared photocatalytic negative ion coating, according to 6m 2 The amount of brushing / kg can be sprayed on the inner wall of tunnels and underground parking...

Embodiment 3

[0046] Put 8kg of water, 1.5kg of propylene glycol, 0.15kg of defoamer, 0.5kg of dispersant, and 0.3kg of wetting agent into the grinding tank, and stir at 500rpm for 20mins;

[0047] At 500rpm, add 15kg of negative ion powder, 5kg of heavy calcium carbonate, 10kg of light calcium carbonate, and 5kg of ultrafine diatomaceous earth into the grinding tank in sequence, then disperse at 3000rpm at high speed for 20mins, and then add 45kg The photocatalytic nano-titanium dioxide slurry was sanded at 4000rpm for 60mins;

[0048] Transfer the sanded slurry to the paint mixing tank, add 40kg of silicon acrylic emulsion under stirring at 600rpm, the remaining 0.2kg of defoamer, 0.3kg of leveling agent, 0.5kg of thickener, and continue stirring for 20mins rear discharge;

[0049] The prepared photocatalytic negative ion coating, according to 6m 2 The amount of brushing / kg can be sprayed on the inner wall of tunnels and underground parking lots.

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Abstract

The invention discloses a coating used for purifying automobile tail gas in tunnels and underground parking lots, which consists of 20-40 parts of silicon acrylic emulsion, 10-30 parts of photocatalytic titanium dioxide nano powder, 5-15 parts by weight negative ion powder, 5-10 parts of ultra-fine diatomite, 10-20 parts of water, 5-15 parts of ordinary titanium dioxide, 4-8 parts of heavy calcium carbonate, 5-10 parts of light calcium carbonate, 1-2 4 parts of propylene glycol, 0.2-0.4 parts of leveling agent, 0.3-0.8 parts of thickener, 0.2-0.4 parts of defoamer, 0.8-1.5 parts of dispersant and 0.3-0.4 parts of wetting agent. The coating of the present invention has added high-efficiency adsorptive diatomite, which can enhance the adsorption of harmful gases and enhance the treatment effect; the adhesion between the coating made of nanoparticles and the substrate is improved; the nano photocatalytic coating of the present invention has The photocatalytic efficiency is high, and it has the effect of releasing negative ions, and can effectively purify the air; the nano photocatalytic coating of the present invention is very convenient for construction, and the thickness of the coating can also be adjusted according to the viscosity of the coating.

Description

【Technical field】 [0001] The invention relates to a functional coating capable of decomposing automobile exhaust, in particular to a functional coating capable of completely removing automobile exhaust with photocatalysis and releasing air negative ions to improve air quality in tunnels and underground parking lots and its application. 【Background technique】 [0002] The destruction of the atmospheric environment by automobile exhaust has become the main problem of environmental pollution in the world. According to statistics, the maximum displacement of a fully loaded truck can reach 7m per minute. 3 Above, the average nitrogen oxides discharged per 1,000 vehicles per day are 50kg-150kg, and hydrocarbons 200kg-400kg. It can be seen that automobile exhaust emissions are quite serious in air pollution, and the "acid rain incident" and "smog incident" caused by pollutant gases have brought huge losses to the environment and society. [0003] There are many types of nitrogen ...

Claims

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Application Information

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IPC IPC(8): C09D183/07
Inventor 关有俊何唯平
Owner SHENZHEN OCEANPOWER NEW MATERIALS TECH
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