High-transparency antibacterial coating as well as preparation method and application thereof

An antibacterial coating and transparency technology, applied in the field of functional coatings, can solve the problems of complex preparation methods of antibacterial agents, low transparency of the protective film layer, easy discoloration of the coating and not durable, etc., and achieves a short preparation period and a small average size. , the effect of little impact on mechanical properties

Pending Publication Date: 2022-07-29
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the protective film layer prepared by the existing inorganic antibacterial agent is not transparent, covering the pattern and color of the surface of the coated substrate, the coating is easy to change color and is not durable, and may have an adverse effect on the material strength of the substrate itself. The preparation method of the agent is complicated, the process conditions are high, and the cost is high, which is not conducive to popularization and application

Method used

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  • High-transparency antibacterial coating as well as preparation method and application thereof
  • High-transparency antibacterial coating as well as preparation method and application thereof
  • High-transparency antibacterial coating as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] In this embodiment, a high-transparency antibacterial coating is formed by coating the antibacterial coating material on the surface of the substrate, and curing it on the substrate to form the antibacterial coating; the antibacterial coating material includes a resin matrix and an inorganic Nano antibacterial agent, the inorganic nano antibacterial agent is uniformly dispersed in a resin matrix to form a film on the surface of the base material, and the inorganic antibacterial agent is sodium zirconium phosphate loaded with silver ions.

[0039] A preparation method of the high-transparency antibacterial coating, comprising the following steps:

[0040]Step 1: Add 10g of sodium zirconium phosphate silver-loaded antibacterial agent, 300g of grinding balls with a particle size of 0.3mm, and 100mL of deionized water into the ball mill, and use the grinding balls with an average particle size of 0.3mm as the ball milling medium, water and ball milling medium The volume rat...

Embodiment 2

[0047] This embodiment is basically the same as Embodiment 1, and the special features are:

[0048] In this embodiment, a preparation method of the high-transparency antibacterial coating includes the following steps:

[0049] Step 1: Add 10g of sodium zirconium phosphate silver-loaded antibacterial agent, 300g of grinding balls with a particle size of 0.3mm, and 100mL of absolute ethanol into the ball mill. The volume ratio was 1:1, ball milled at 2000 rpm for 3 hours, and the grinding balls were removed by filtration to obtain an antibacterial agent dispersion containing 10 wt % of sodium zirconium phosphate-supported silver antibacterial agent. diameter less than 100nm; spare;

[0050] Step 2: Mix 10 mL of the antibacterial agent dispersion prepared in the first step, 20 mL of water-based polyurethane resin, and 70 mL of deionized water, mechanically stir for 30 minutes, fully stir and mix to obtain an antibacterial coating slurry;

[0051] Step 3: Use a 25 μm scraper to...

Embodiment 3

[0054] This embodiment is basically the same as the above-mentioned embodiment, and the special features are:

[0055] In this embodiment, a preparation method of the high-transparency antibacterial coating includes the following steps:

[0056] Step 1: Add 5g sodium zirconium phosphate silver-loaded antibacterial agent, 300g grinding balls with a particle size of 0.3mm, and 100mL deionized water into the ball mill, and use the grinding balls with an average particle size of 0.3mm as the ball milling medium, water and ball milling medium The volume ratio was 1:1, ball milled at 2000 rpm for 24 hours, and the grinding balls were removed by filtration to obtain an antibacterial agent dispersion containing 5wt% of sodium zirconium phosphate-supported silver antibacterial agent. diameter less than 100nm; spare;

[0057] Step 2: Mix 20 mL of the antibacterial agent dispersion prepared in the first step, 20 mL of water-based polyurethane resin, and 60 mL of deionized water, stir me...

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Abstract

The invention discloses a high-transparency antibacterial coating as well as a preparation method and application thereof. The high-transparency antibacterial coating is coated on the surface of a base material. The antibacterial coating comprises a resin matrix and a nano inorganic antibacterial agent. The invention further provides a preparation method of the antibacterial coating. The prepared coating is high in light transmittance in a visible region, good in stability and excellent and lasting in antibacterial performance on gram-negative bacteria and gram-positive bacteria, the preparation process is simple, complex instruments and equipment are not needed, the coating can be coated on the surfaces of various transparent base materials only through simple spraying, blade coating, spin coating and other modes, and the application range is wide. Meanwhile, production cost is low, and the application range is wide.

Description

technical field [0001] The invention relates to an antibacterial coating, a preparation method and application thereof, and belongs to the technical field of functional coatings. Background technique [0002] As we all know, a wide variety of pathogenic microorganisms are widely distributed in our living environment, seriously threatening the survival and health of human beings. At present, with the development of science and technology, people's quality of life has also improved. Especially since the outbreak of the new crown pneumonia, more and more attention has been paid to the safety of the living environment. Antibacterial needs are raised. The use of antibacterial coatings in public places and buildings can effectively reduce contact with pathogenic sources of infection and prevent cross-infection. In the home environment, the use of colorful antibacterial coatings can not only effectively reduce the number of bacteria on household objects, inhibit the growth of har...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/14
CPCC09D175/04C09D5/14C08K2201/011C08K2003/321C08K9/12C08K3/32C08K3/015
Inventor 陈长高彦峰李玉萍曹传祥
Owner SHANGHAI UNIV
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