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Antibacterial and mildew-proof coating and preparation method and application thereof

An antibacterial, antifungal and coating technology, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc. Mildew effect, bactericidal and mildew-proof advantages and lasting power, the effect of strong compactness

Inactive Publication Date: 2020-05-12
同曦集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coating also has the problem that the antibacterial performance is not durable, and microorganisms are prone to drug resistance.

Method used

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  • Antibacterial and mildew-proof coating and preparation method and application thereof
  • Antibacterial and mildew-proof coating and preparation method and application thereof
  • Antibacterial and mildew-proof coating and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] The present embodiment provides an antibacterial and mildew-proof coating, and the preparation raw materials of the antibacterial and mildew-proof coating include by weight: 20.5 parts of polyvinyl alcohol (the degree of polymerization is 2000), 0.8 part of sodium tripolyphosphate, 2.7 parts of glycerin 76 parts of deionized water, 5 parts of 80g / L oxalic acid, 12 parts of ultrafine sharp titanium dioxide with a fineness of 2 μm, 8 parts of ultrafine wollastonite with a fineness of 2 μm, and 8 parts of superfine calcium carbonate parts, 24 parts of water-based styrene-acrylic emulsion (viscosity is 1000mPa·s) of 45wt% solid content, 10 parts of antibacterial agent and 5 parts of benzyl alcohol;

[0092] Described antimicrobial agent is the mixture of ultrafine copper yttrium alloy powder and sodium isozincate powder, and the molar mass ratio of described ultrafine copper yttrium alloy powder and sodium isozincate powder is 1.8:1, and in described copper yttrium alloy pow...

Embodiment 2

[0104] The present embodiment provides a kind of antibacterial and mildew-proof coating, and the preparation raw material of described antibacterial and mildew-proof coating comprises by weight: 28 parts of polyvinyl alcohol (the degree of polymerization is 1000), 1 part of sodium tripolyphosphate, 5 parts of glycerin 66 parts of deionized water, 4 parts of oxalic acid 90g / L, 18 parts of ultrafine sharp titanium dioxide with a fineness of 5 μm, 9 parts of ultrafine wollastonite with a fineness of 4 μm, and 10 parts of superfine calcium carbonate parts, 30 parts of water-based styrene-acrylic emulsion (viscosity is 800mPa·s) of 40wt% solid content, 20 parts of antibacterial agents and 10 parts of benzyl alcohol;

[0105] Described antimicrobial agent is the mixture of ultrafine copper yttrium alloy powder and sodium isozincate powder, and the molar mass ratio of described ultrafine copper yttrium alloy powder and sodium isozincate powder is 2:1, and in described copper yttrium a...

Embodiment 3

[0117] The present embodiment provides an antibacterial and antifungal coating, the preparation raw materials of the antibacterial and antifungal coating include by weight: 30.8 parts of polyvinyl alcohol (the degree of polymerization is 4000), 1.7 parts of sodium tripolyphosphate, 6.5 parts of glycerin 61 parts of deionized water, 5 parts of 100g / L oxalic acid, 23 parts of ultrafine sharp titanium dioxide with a fineness of 10 μm, 11 parts of ultrafine wollastonite with a fineness of 2 μm, and 11 parts of superfine calcium carbonate, 36 parts of water-based styrene-acrylic emulsion (viscosity is 1500mPa·s), 25 parts of antibacterial agent and 12 parts of benzyl alcohol with solid content of 40wt%;

[0118] Described antimicrobial agent is the mixture of ultrafine copper yttrium alloy powder and sodium isozincate powder, and the molar mass ratio of described ultrafine copper yttrium alloy powder and sodium isozincate powder is 2:1, and in described copper yttrium alloy powder ...

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Abstract

The invention provides an antibacterial and mildew-proof coating and a preparation method and application thereof. The antibacterial and mildew-proof coating is prepared from the following raw materials (by weight): 20 to 32 parts of polyvinyl alcohol, 0.5 to 2.5 parts of a dispersing agent, 2.5 to 6.5 parts of a chain extender, 40 to 80 parts of water, 3 to 6 parts of oxalic acid, 28 to 45 partsof a filler, 24 to 36 parts of a water-based styrene-acrylic emulsion, 10 to 25 parts of an antibacterial agent and 5 to 12 parts of a coalescing agent. The antibacterial agent is a mixture of superfine copper-yttrium alloy powder and sodium isocaprylate powder. The antibacterial and mildew-proof coating can form an isozincic acid-copper-yttrium alloy polymer layer with stable, compact and bactericidal effects, and is good in antibacterial effect, long in antibacterial durability, low in cost and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of special coatings, in particular to a coating and its preparation method and application, in particular to an antibacterial and anti-mold coating and its preparation method and application. Background technique [0002] With the continuous improvement of people's living standards, people's requirements for decorative coatings are also getting higher and higher. Antibacterial coatings refer to coatings with bactericidal and bacteriostatic functions made by adding an antibacterial agent that has antibacterial function and can exist stably in the coating film, and is processed by a certain process. When the antibacterial coating is used in public places, it can reduce the number of bacteria in public places, reduce the chance of cross-infection and contact infection; when used in a home environment, it can effectively reduce the density of bacteria and optimize people's living environment. However, with the widespread...

Claims

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Application Information

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IPC IPC(8): C09D129/04C09D125/14C09D5/14C09D7/61
CPCC08K2003/2241C08K2003/265C08K2003/324C09D5/14C09D129/04C09D7/61C08L25/14C08K13/02C08K3/08C08K3/32C08K5/053C08K3/22C08K3/34C08K3/26
Inventor 陈广川于红光李梦婷
Owner 同曦集团有限公司
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