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Antibacterial coating and preparation method thereof

An antibacterial coating, acrylic emulsion technology, applied in antifouling/underwater coatings, coatings, latex paints, etc., can solve the problems of promotion resistance, high price, and blackening of sterilization delayed products

Active Publication Date: 2016-02-24
SKSHU PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the commercialized nano-silver with safety, heat resistance, and durability can solve the above problems, but there is a delay in sterilization and the product changes due to the oxidation of silver ions to form silver oxide or the photocatalysis into metallic silver. In addition, this kind of inorganic fungicide is expensive, and there is a certain resistance to its promotion in the market. It is mainly used in the antibacterial aspect of plastics.

Method used

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  • Antibacterial coating and preparation method thereof
  • Antibacterial coating and preparation method thereof
  • Antibacterial coating and preparation method thereof

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preparation example Construction

[0041] 2. Preparation of antibacterial coating

[0042]

[0043] The preparation method of described antibacterial coating is characterized in that: comprises the steps:

[0044] (1) Control the stirring rate to 300-500rmp, add 24.5-34.8 parts of deionized water, 0.5-0.7 parts of thickener and 0.1-0.3 parts of PH regulator to the mixer in sequence, and stir for 5-10 minutes;

[0045] (2) Then increase the speed to 800-1000r / min, add 0.1-0.2 parts of wetting agent, 0.5-1 part of dispersant, 0.5-1 part of defoamer, 10-20 parts of titanium dioxide and 20-30 parts of carbonic acid Calcium, then increase the speed to 1800-2000r / min, stir for 15-20min;

[0046] (3) Finally, reduce the speed to 1000-1200r / min, add 20-30 parts of emulsion, 0.8-1.5 parts of film-forming aid and 1-2.5 parts of antifreeze in turn, stir for 10-15 minutes and sieve with 200-300 mesh , to obtain the product of the present invention.

[0047] (two) embodiment:

Embodiment 1

[0049] 1. Preparation of antibacterial emulsion

[0050]

[0051]

[0052]The described acrylic emulsion with antibacterial function is formulated according to the following steps:

[0053] 1) Preparation of quaternary ammonium antibacterial monomer:

[0054] In a three-neck flask equipped with a stirrer and a constant pressure funnel, add 100% propoxypyromellitic acid ester dimethacrylate at a speed of 200rmp, slowly add dimethylaminoethyl methacrylate dropwise at room temperature, 0.5 After the addition of h is completed, react at room temperature for 1.5 h, stop stirring, and obtain the quaternary ammonium salt antibacterial monomer.

[0055] 2) Preparation of acrylic emulsion with antibacterial function:

[0056] With stirrer, N 2 Add quaternary ammonium salt antibacterial monomer, methyl methacrylate, isobutyl methacrylate, butyl acrylate, acrylic acid, deionized water in the five-necked flask of conduit, constant pressure funnel and thermometer, stir 15min under...

Embodiment 2

[0064] 1. Preparation of antibacterial emulsion

[0065]

[0066] The described acrylic emulsion with antibacterial function is formulated according to the following steps:

[0067] 1) Preparation of quaternary ammonium antibacterial monomer:

[0068] In a three-necked flask equipped with a stirrer and a constant pressure funnel, add 1 portion of propoxypyromellitic acid dimethacrylate, the rotation speed is 300rmp, and slowly add dimethylaminoethyl methacrylate dropwise at room temperature, 0.8 After the addition of h is completed, react at room temperature for 1.8 h, stop stirring, and obtain a quaternary ammonium salt antibacterial monomer.

[0069] 2) Preparation of acrylic emulsion with antibacterial function:

[0070] With stirrer, N 2 Add quaternary ammonium salt antibacterial monomer, methyl methacrylate, isobutyl methacrylate, butyl acrylate, acrylic acid, deionized water in the five-necked flask of conduit, constant pressure funnel and thermometer, stir 25min u...

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Abstract

The invention relates to an antibacterial coating, wherein the antibacterial coating is prepared from the following components: deionized water, a thickening agent, a pH regulator, a dispersant, a wetting agent, a defoamer, titanium dioxide, calcium carbonate, an acrylic emulsion having an antibacterial function, a film-forming auxiliary agent, and an antifreezing agent. The coating has good antibacterial mouldproof stability, and a coating film is good in patience and high in hardness.

Description

technical field [0001] The invention relates to an antibacterial paint and a preparation method thereof, which can be used for interior wall latex paint and belongs to the field of water-based architectural paint. Background technique [0002] In latex paint, some additives (especially cellulose derivatives) may become a source of nutrients for microorganisms. When the paint is contaminated by microorganisms, as long as the growth conditions such as temperature and humidity are suitable, the microorganisms will multiply and cause the paint to become moldy and deteriorate, the viscosity will drop and it will stink, which is the so-called "corrosion" in the tank. In order to prevent the paint from being corrupted in the tank during storage, it is necessary to add antibacterial and antifungal agents during the paint mixing stage to achieve the effect of corrosion in the tank. [0003] Currently commonly used bactericidal ingredients are isothiazolones, formaldehyde-releasing, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/10C09D7/12C09D5/14C09D5/02C08F220/18C08F220/14C08F220/06C08F222/22
Inventor 洪杰詹俊英
Owner SKSHU PAINT
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