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Water-based environment-friendly antibacterial paint and preparation method thereof

An antibacterial paint, environmental protection technology, applied in paints containing biocides, antifouling/underwater paints, coatings, etc., can solve the problem of unstable bactericidal effect of metal ion antibacterial paints, and achieve good antibacterial and antifungal effects , protect the health, the effect of high sterilization rate

Inactive Publication Date: 2022-05-17
兆诺(商丘)新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to: provide a kind of water-based environment-friendly antibacterial paint, have long-acting, stable bactericidal effect, to solve the problem that the bactericidal effect of metal ion type antibacterial paint is unstable

Method used

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Examples

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preparation example Construction

[0025] The present invention further provides a method for preparing a water-based environmentally friendly antibacterial paint for the preparation of the above-described waterborne environmentally friendly antibacterial paint, comprising the following steps:

[0026] (1) Add all additives, antibacterial agents, hydroxyethyl cellulose and part of the water to the aqueous polymer emulsion, stir so that it is mixed evenly;

[0027] (2) Add the pigment filler to the mixture obtained in step (1), then add the remaining water, and stir evenly;

[0028] (3) Pour the slurry obtained in step (2) into the dispersion grinder and grind until the fineness is qualified, that is, the water-based environmental protection antibacterial paint is obtained.

[0029] In the present invention, the amount of water in step (1) accounts for 30% to 60% of the total dosage.

[0030]In the present invention, in step (3), the fineness of the waterborne environmentally friendly antibacterial paint after grin...

Embodiment 1

[0032] (1) In the 50L stirring kettle, add 40 parts of silicon propylene emulsion, 10 parts of water, 5 parts of sodium dichloroisocyanurate, 4 parts of hydroxyethyl cellulose, 3.5 parts of dispersant, 1 part of defoamer, 0.3 parts of wetting agent, 0.1 part of preservative, 0.1 part of film-forming additive, and stir at a speed of 500rpm for 30min, so that it is mixed evenly to obtain a mixture liquid;

[0033] (2) Add 30 parts of heavy calcium powder and 20 parts of titanium dioxide to the mixture obtained in step (1), and then add the remaining 10 parts of water, and continue to stir at a speed of 500 rpm for 20 min, so that it is mixed evenly to obtain a slurry;

[0034] (3) The slurry obtained in step (2) is poured into the dispersion grinder, grinded at a speed of 1500rpm, and the fineness is measured once every 0.5h interval after grinding for 1h, until the fineness is less than 25μm, that is, the water-based environmental protection antibacterial paint is obtained.

Embodiment 2

[0036] (1) In the 50L stirring kettle, add 20 parts of silicon propylene emulsion, 5 parts of water, 3 parts of sodium trichloroisocyanurate, 2 parts of hydroxyethyl cellulose, 1.8 parts of dispersant, 0.6 parts of defoamer, 0.3 parts of wetting agent, 0.2 parts of preservative, 0.1 parts of film-forming additives, and stir at a speed of 800rpm for 20min, so that it mixes evenly to obtain a mixed liquid;

[0037] (2) Add 20 parts of nano calcium carbonate and 10 parts of titanium dioxide to the mixture obtained in step (1), and then add the remaining 5 parts of water, and continue to stir at a speed of 500 rpm for 20min, so that it is mixed evenly to obtain a slurry;

[0038] (3) The slurry obtained in step (2) is poured into the dispersion grinder, grinded at a speed of 1500rpm, and the fineness is measured once every 0.5h interval after grinding for 1h, until the fineness is less than 25μm, that is, the water-based environmental protection antibacterial paint is obtained.

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Abstract

The invention discloses a water-based environment-friendly antibacterial paint, and relates to the technical field of antibacterial coatings, the water-based environment-friendly antibacterial paint is prepared from the following raw materials by weight: 20-40 parts of a water-based polymer emulsion, 2-5 parts of hydroxyethyl cellulose, 30-60 parts of a pigment filler, 3-5 parts of an antibacterial agent, 3-5 parts of an auxiliary agent, and 10-20 parts of water, the auxiliary agent comprises one or more of a dispersing agent, a defoaming agent, a wetting agent, a preservative and a coalescing agent, and the antibacterial agent comprises one or more of sodium dichloroisocyanurate, trichloroisocyanuric acid and chlorhexidine acetate. The invention also provides a preparation method of the water-based environment-friendly antibacterial paint. By adopting the organic bactericides such as the sodium dichloroisocyanurate, the trichloroisocyanuric acid and the chlorhexidine acetate, good antibacterial and mildew-proof effects are achieved, and the coating has the advantages of low VOC (volatile organic compound) emission and non-flammability, and is beneficial to protecting the body health of coating personnel and residents.

Description

Technical field [0001] The present invention relates to the technical field of antibacterial coatings, specifically a water-based environmentally friendly antibacterial paint and a preparation method thereof. Background [0002] Antibacterial coating is a class of bactericidal, anti-mildew effect of the paint, suitable for the southern humid climate of the building coating, can also be used for some of the old building coating, with inhibition of microbial reproduction, to prevent the wall surface of the skin mold and other effects, the current market antibacterial coatings are mainly solvent-based coatings, that is, commonly known as paint, due to its use of a large number of organic solvents, the smell is larger, seriously affecting the physical health of coating workers and occupants, so gradually replaced by water-based antibacterial coatings. [0003] At present, the mainstream water-based antibacterial coatings use inorganic nanoparticle fungicides, which are in contact wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D125/14C09D5/14C09D7/20
CPCC09D143/04C09D125/14C09D5/14C09D7/20C08L25/14C08L33/04C08K5/34924C08K5/31
Inventor 赵玉升
Owner 兆诺(商丘)新材料科技有限公司
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