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Photocatalyst coating material and preparation method thereof

A technology of photocatalyst and coating, applied in the field of coatings, can solve the problems of single function of exterior wall coatings and cannot satisfy consumers, and achieve the effect of enhancing mechanical strength and adhesion, preventing ultraviolet rays and water from penetrating, and super scrubbing resistance

Inactive Publication Date: 2015-07-08
李淑珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, with the aggravation of modern environmental pollution, consumers pay more and more attention to the green performance and environmental protection performance of the paint when purchasing exterior wall coatings, and the requirements for exterior wall coatings are also getting higher and higher, while traditional exterior wall coatings Single function, unable to meet the needs of consumers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 230kg of deionized water into the dispersing tank, start stirring at a rate of 100 rpm, then add 5kg of dispersant 3200, 2kg of wetting agent 1500, 2kg of TCP-95, and 2kg of defoamer 218 into the dispersing tank In the process, after confirming that all of them are dissolved, add 40kg of nano anatase, continue to stir for 30 minutes, add 120kg of rutile titanium dioxide, 100kg of nano quartz powder, 30kg of negative ion powder, 120kg of kaolin, 10kg of sericite powder, and 20kg of light calcium. , increase the stirring speed to 500 rpm, and stir at this high speed for 1 hour.

[0032] After the stirring is completed, the stirred slurry is put into a sand mill for grinding. When grinding, control the flow rate or the number of times of grinding until the fineness is less than 20 μm. If the slurry fineness is greater than 20 μm, the flow rate can be reduced or the grinding frequency can be increased to ensure that the particle size of the final slurry is below 20 μm....

Embodiment 2

[0035] Add 250kg of deionized water into the dispersing tank, start stirring at a rate of 120 rpm, then add 10kg of dispersant 3200, 5kg of wetting agent 1500, 5kg of TCP-95, and 4kg of defoamer 218 into the dispersing tank In, after confirming that all dissolve, add 50kg nano anatase again, after continuing to stir for 40 minutes, add 130kg rutile type titanium dioxide, 120kg nano quartz powder, 40kg negative ion powder, 130kg kaolin, 15kg sericite powder, 25kg light calcium, at this time , increase the stirring speed to 600 rpm, and stir at this high speed for 2 hours.

[0036] After the stirring is completed, the stirred slurry is put into a sand mill for grinding. When grinding, control the flow rate or the number of times of grinding until the fineness is less than 20 μm. If the slurry fineness is greater than 20 μm, the flow rate can be reduced or the grinding frequency can be increased to ensure that the particle size of the final slurry is below 20 μm.

[0037] After g...

Embodiment 3

[0040] Add 230kg of deionized water into the dispersing tank, start stirring at a rate of 120 rpm, then add 5kg of dispersant 3200, 2kg of wetting agent 1500, 2kg of TCP-95, and 2kg of defoamer 218 into the dispersing tank In the process, after confirming that it is completely dissolved, add 50kg of nano anatase and continue to stir for 30 minutes, then add 130kg of rutile titanium dioxide, 100kg of nano quartz powder, 30kg of negative ion powder, and 150kg of kaolin. At this time, increase the stirring rate to 600 rpm , stirred at this high rate for 1.5 hours.

[0041] After the stirring is completed, the stirred slurry is put into a sand mill for grinding. When grinding, control the flow rate or the number of times of grinding until the fineness is less than 20 μm. If the slurry fineness is greater than 20 μm, the flow rate can be reduced or the grinding frequency can be increased to ensure that the particle size of the final slurry is below 20 μm.

[0042] After the grind...

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Abstract

The invention provides a photocatalyst coating material. The photocatalyst coating material comprises a sizing agent and a basic material, by weight, the sizing agent is mainly prepared by the following components of 40-50 parts of nano titania, 120-130 parts of titanium dioxide, 100-120 parts of nano silica flour, 30-40 parts of anion powder, 150-160 parts of extender pigment, 11-24 parts of sizing auxiliary agents and 230-250 parts of water; the basic material is mainly prepared by the following components of 260-280 parts of external wall emulsion and 44-74 parts of basic material auxiliary agent. The photocatalyst coating material and the preparation method thereof have five unique functions that 1, the ultra-low VOC and the excellent air purifying function are achieved, and formaldehyde, ammonia and benzene and other harmful gases in air can be purified; 2, the specific antibacterial and antifungal effects are achieved, and the antibacterial rate is above 98%; 3, anions can be released for a long time; 4. ultra-strong scrubbing resistance and aging resistance performances are achieved, and phenomena of pulverization, cracking and color fading and color changing are not prone to occurring; 5, the prominent protective capability is achieved, and fine cracks can be covered.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a photocatalyst coating and a preparation method thereof. Background technique [0002] Exterior wall coatings can mainly be used to decorate and protect the exterior walls of buildings, so that the appearance of buildings is neat and beautiful, so as to achieve the purpose of beautifying the urban environment. At the same time, it can protect the exterior walls of buildings that have been exposed to wind and sun for years, prolong the service time, and obtain good decoration and protection effects. [0003] However, with the aggravation of modern environmental pollution, consumers pay more and more attention to the green performance and environmental protection performance of the paint when purchasing exterior wall coatings, and the requirements for exterior wall coatings are also getting higher and higher, while traditional exterior wall coatings The function is single and cannot meet ...

Claims

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Application Information

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IPC IPC(8): C09D125/14C09D5/14C09D7/12
CPCC09D125/14C08K2201/011C08K2201/014C09D5/14C09D7/40C09D7/61C09D7/65C08L1/284C08K13/02C08K2003/2241C08K2003/265C08K3/36C08K3/346C08K3/34
Inventor 李淑珍
Owner 李淑珍
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