Aqueous antimicrobial coating and preparation method thereof

An antibacterial, antifungal, and water-based technology, applied in the field of coatings, can solve the problems of coating film failure, high antibacterial rate, good antifungal effect, and low toxicity, and achieve the effects of beautiful coating film, high antibacterial and antifungal functions, and low toxicity.

Inactive Publication Date: 2015-06-03
FUJIAN TAIHUA CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that existing coatings are susceptible to microbial erosion and cause coating film failure, and to invent a water-based antibacterial and anti-mildew coating with high anti-bacterial rate, good anti-mildew effect and low toxicity and its preparation method

Method used

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  • Aqueous antimicrobial coating and preparation method thereof
  • Aqueous antimicrobial coating and preparation method thereof
  • Aqueous antimicrobial coating and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0036] The preparation method of three embodiments of the water-based antibacterial and antifungal coating comprises the following steps

[0037] Steps:

[0038] (1) Mix water and wetting and dispersing agent evenly in the mixing tank until wetting and dispersing

[0039] agent dissolved in water;

[0040] (2) Add organic antibacterial and antifungal agents, inorganic antibacterial and antifungal agents, pigments and fillers to the above aqueous solution, and stir thoroughly to make the pigments and fillers completely wet;

[0041] (3) Send the above-mentioned mixture into dispersion equipment, such as a sand mill, for grinding, and the quality inspection controls the fineness to be ≤ 60 μm;

[0042] (4) Transfer the slurry obtained above to the paint mixing tank, and continue to add room temperature self-crosslinking multifunctional modified acrylate copolymer emulsion, defoamer, film-forming aid, hydrophobically modified non-ionic polyether rheological modification agent,...

Embodiment 1

[0045] Embodiment 1 performance test result is as follows:

[0046] Physical and chemical properties

[0047] serial number Test items unit standard requirement test result single conclusion 1 state in container — No lumps, homogeneous state after stirring conform to qualified 2 Construction — Applied secondary barrier-free conform to qualified 3 Coating Appearance — normal conform to qualified 4 Drying time (tack dry) h ≤2 ﹤2 qualified 5 Contrast Ratio (White) — ≥0.9 0.94 qualified 6 Alkali resistance (24h) — No abnormality No abnormality qualified 7 Scrub resistance Second-rate ≥300 310 qualified 8 Low temperature stability (3 cycles) class no deterioration No deterioration qualified

[0048] The inspection basis is: GB / T9756-2009 "Synthetic Resin Emulsion Interior Wall Coatings"

[0049] Limit of Hazardous Substances

[0050]

[0051] The inspection...

Embodiment 2

[0055] Embodiment 2 performance test result is as follows:

[0056] Physical and chemical properties

[0057] serial number Test items unit standard requirement test result single conclusion 1 state in container — No lumps, homogeneous state after stirring conform to qualified 2 Construction — Applied secondary barrier-free conform to qualified 3 Coating Appearance — normal conform to qualified 4 Drying time (tack dry) h ≤2 ﹤2 qualified 5 Contrast Ratio (White) — ≥0.9 0.96 qualified 6 Alkali resistance (24h) — No abnormality No abnormality qualified 7 Scrub resistance Second-rate ≥300 500 qualified 8 Low temperature stability (3 cycles) class no deterioration No deterioration qualified

[0058] The inspection basis is: GB / T9756-2009 "Synthetic Resin Emulsion Interior Wall Coatings"

[0059] Limit of Hazardous Substances

[0060]

[0061]The inspection ...

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Abstract

The invention belongs to the technical field of coating and particularly discloses an aqueous antimicrobial coating and a preparation method thereof. The coating is composed of a normal-temperature self-crosslinking multifunctional modified acrylic ester copolymer emulsion, an organic antibacterial and antifungal agent, an inorganic antibacterial and antifungal agent, a wetting dispersant, a PH adjustor, a defoamer, a coalescing agent, a hydrophobic modified nonionic polyether rheology modifier, a swelling anion hydrophobic modified alkali, a dye, a filler and water. By adopting the aqueous antimicrobial coating, the microorganism corrosion can be prevented, particularly the growth of the microorganisms and the algae in the film after forming the film can be inhibited for a long time, various microorganisms and algae of the film can be killed and resisted from external erosion and the film has the function of preventing the erosion of the microorganism and the algae. The aqueous antimicrobial coating is convenient to use, beautiful in film, strong in decorativeness, low in toxin, high in antibacterial rate and good in mildewproof effect. The aqueous antimicrobial coating can be applied to the warm humid building inner wall and outer wall, the ceiling and the ground and also can be applied to the public places with high sanitary requirement such as the hospital, the hotel, the office and the restaurant.

Description

technical field [0001] The invention belongs to the technical field of coatings, in particular to a water-based antibacterial and antifungal coating and a preparation method thereof. Background technique [0002] The organic components contained in traditional latex paints, water-based paints and oil-based resin topcoats provide a rich material basis for the growth and reproduction of microorganisms. Microorganisms use these organic components to undergo biodegradation, biochemical synthesis, and metabolism in the body to obtain Energy, transformed into various life substances of its own. This complex life process can produce enzymes and organic acids at the same time, and these metabolites can continuously destroy the organic matter in the paint and the substance after film formation. With the continuous reproduction of microorganisms, the degree of destruction of the paint continues to accelerate, and its viscosity Decline, demulsification, delamination, sedimentation, co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D7/12C09D5/14
CPCC09D133/04C09D5/14
Inventor 陈启荣赖晓宗
Owner FUJIAN TAIHUA CHEM IND
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