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Novel nano-antibiotic coating

An antibacterial coating and nanotechnology, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve the problems of easy breeding of bacteria, poor stability and long-term effect, limited antibacterial effect, etc. The effect of breeding and reproduction, simple production process and good compatibility

Inactive Publication Date: 2014-04-23
ANHUI HUAIHUA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Natural antibacterial agents such as chitin, wasabi, etc. are easy to use, but their antibacterial effects are limited and cannot be broad-spectrum and long-lasting; organic antibacterial agents such as quaternary ammonium salts, thiocyanate compounds, sorbic acid, etc., have fast sterilization speed , the development and use technology is mature, but the stability and long-term effect are poor; inorganic metals, such as mercury, silver, copper, chromium, zinc, etc., have different degrees of killing effects on microorganisms, and people generally use the powder of these metals on the carrier Shaped materials, using these antibacterial metal ions, slowly release from the carrier, effectively kill harmful bacteria attached to its surface for a long time, but metal ions are difficult to enter the outer membrane of bacteria, and its antibacterial has limitations
[0003] At present, well-known coatings are widely used in construction, vehicles, military, decoration, and shipbuilding industries, and are closely related to people's lives, but most of the coatings themselves have no bactericidal and antibacterial functions, so they are used in hospitals, kitchens, bathrooms, and various public places The surface of the paint is easy to breed bacteria, which becomes the source of infection of germs and affects human health.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A new type of nano antibacterial paint, which is composed of nano titanium dioxide, resin, hardener, pigment, acrylic emulsion and water, and the weight parts of each component are as follows:

[0019]

[0020] The particle size of the above-mentioned nano titanium dioxide is between 10-90 nm.

[0021] The above-mentioned curing agent is a polyamide curing agent.

[0022] When preparing, the components can be blended according to the conventional method in the field. Take the new nano antibacterial coating prepared in this example, and test with reference to GB15981-1995, Q / 02GZS001 test method and standard. The result shows that Calculated by the number of colonies, the antibacterial coating of the present invention has an antibacterial rate of 91% against Escherichia coli and 92% against Staphylococcus aureus.

Embodiment 2

[0024] A new type of nano antibacterial paint, which is composed of nano titanium dioxide, resin, hardener, pigment, acrylic emulsion and water, and the weight parts of each component are as follows:

[0025]

[0026] The particle size of the above-mentioned nano titanium dioxide is between 10 nm and 90 nm.

[0027] The above-mentioned curing agent is a polyamide curing agent.

[0028] When preparing, the components can be blended according to the conventional method in the field. Take the new nano antibacterial coating prepared in this example, and test with reference to GB15981-1995, Q / 02GZS001 test method and standard. The result shows that Calculated by the number of colonies, the antibacterial coating of the present invention has an antibacterial rate of 90% against Escherichia coli and 90% against Staphylococcus aureus.

Embodiment 3

[0030] A new type of nano antibacterial paint, which is composed of nano titanium dioxide, resin, hardener, pigment, acrylic emulsion and water, and the weight parts of each component are as follows:

[0031]

[0032] The particle size of the above-mentioned nano titanium dioxide is between 10 nm and 90 nm.

[0033] The above-mentioned curing agent is a polyamide curing agent.

[0034] When preparing, the components can be blended according to the conventional method in the field. Take the new nano antibacterial coating prepared in this example, and test with reference to GB15981-1995, Q / 02GZS001 test method and standard. The result shows that Calculated by the number of colonies, the antibacterial coating of the present invention has an antibacterial rate of 91% against Escherichia coli and 91% against Staphylococcus aureus.

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Abstract

The invention discloses a novel nano-antibiotic coating. The novel nano-antibiotic coating comprises, by weight, 3-16 parts of nanometer titanium dioxide, 60-70 parts of a resin, 6-20 parts of a hardener, 20-30 parts of a pigment, 15-25 parts of an acrylic emulsion and 20-30 parts of water. The novel nano-antibiotic coating prepared in the invention can effectively inhibit bacteria like Escherichia coli, Staphylococcus aureus and Candida albicans, and the antibiosis rate is above 90%. The novel nano-antibiotic coating can effectively prevent the growth and breeding of various bacteria in various public occasions, can kill various bacterial fallen on the coating, and also has the advantages of simple production process, easy operation and low cost.

Description

Technical field [0001] The invention belongs to the field of chemical materials and relates to a novel nano antibacterial coating. Background technique [0002] Antibacterial coating refers to adding an antibacterial agent to the coating to make the coating have antibacterial properties. Natural antibacterial agents such as chitin, horseradish, etc., are easy to use, but have limited antibacterial effects and cannot be broad-spectrum long-lasting; organic antibacterial agents such as quaternary ammonium salts, thiocyanate compounds, sorbic acid, etc., have a fast sterilization speed , The development and use technology is mature, but the stability and long-term effect are poor; inorganic metals, such as mercury, silver, copper, chromium, zinc, etc. have different degrees of killing effect on microorganisms. People generally use the powder of these metals on the carrier. The antibacterial metal ions are slowly released from the carrier by using these antibacterial metal ions to e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D201/00C09D133/00C09D5/14C09D7/12
Inventor 李红
Owner ANHUI HUAIHUA
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