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Nano-composite antibacterial coating and preparation method thereof

A nano-composite, antibacterial coating technology, applied in the field of coatings, can solve the problems of single ingredients, etc., and achieve the effect of safe antibacterial effect, better antibacterial effect and rich colors

Inactive Publication Date: 2017-08-18
FOSHAN SHIRUI LEADING MATERIAL RES INST GENERAL PARTNERSHIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The antibacterial active ingredient contained in the invention patent is a water-based nano-silver antibacterial agent, which has a single component and is not as effective as a composite antibacterial agent

Method used

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  • Nano-composite antibacterial coating and preparation method thereof
  • Nano-composite antibacterial coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of nano composite antibacterial coating includes the following steps:

[0021] Take 100g of nano zinc oxide powder and 100g of urea powder and mix them evenly, grind them into powder, pass through a 50-mesh sieve, grind the unsieved powder again and pass through a 50-mesh sieve, until all the materials are sieved, and dried at 80℃ overnight, 300 Vacuum calcined at ℃ for 1h, take out and cool to obtain nitrogen modified nano zinc oxide; wherein the mass ratio of nano zinc oxide powder and urea powder is 1:1.

[0022] Add 100g of nitrogen-modified nano zinc oxide and 1g of silver nitrate to deionized water and mix, transfer to a photocatalytic reactor, irradiate under simulated sunlight for 3 hours, centrifuge, wash and dry to obtain a nano composite antibacterial agent; wherein nitrogen modified nano The mass ratio of zinc oxide to silver nitrate is 1:0.01.

[0023] The nano composite antibacterial agent is added to the paint according to 0.1% of the tot...

Embodiment 2

[0025] The preparation method of nano composite antibacterial coating includes the following steps:

[0026] Take 10g of nano zinc oxide powder and 100g of urea powder and mix them evenly, grind them into powder, pass through a 100-mesh sieve, grind the unsieved powder again and pass through a 100-mesh sieve, until all the materials are sieved, and dry at 90℃ overnight, 500 Vacuum calcined at ℃ for 3h, take out and cool to obtain nitrogen modified nano zinc oxide; wherein the mass ratio of nano zinc oxide powder and urea powder is 1:10.

[0027] Add 10g of nitrogen-modified nano zinc oxide and 0.2g of silver nitrate to deionized water and mix, transfer to a photocatalytic reactor, irradiate under simulated sunlight for 4 hours, centrifuge, wash and dry to obtain nanocomposite antibacterial agent; wherein nitrogen is modified The mass ratio of nano zinc oxide to silver nitrate is 1:0.02.

[0028] The nano composite antibacterial agent is added to the paint according to 3% of the tota...

Embodiment 3

[0030] The preparation method of nano composite antibacterial coating includes the following steps:

[0031] Take 10g of nano zinc oxide powder and 50g of urea powder and mix them evenly, grind them into a powder, pass through a 50-mesh sieve, grind the unsieved powder again and pass through a 50-mesh sieve, until all materials are sieved, and dry at 100°C overnight, 600 Vacuum calcined at ℃ for 4h, take out and cool to obtain nitrogen modified nano zinc oxide; wherein the mass ratio of nano zinc oxide powder and urea powder is 1:5.

[0032] Add 20g of nitrogen-modified nano zinc oxide and 0.6g of silver nitrate to deionized water and mix, transfer to a photocatalytic reactor, irradiate under simulated sunlight for 5h, centrifuge, wash and dry to obtain nano composite antibacterial agent; wherein nitrogen is modified The mass ratio of nano zinc oxide to silver nitrate is 1:0.03.

[0033] Add the nano composite antibacterial agent to the paint according to 1% of the total weight of t...

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Abstract

The invention relates to nano-composite antibacterial coating. The nano-composite antibacterial coating comprises a nano-composite antibacterial agent and paint, wherein the nano-composite antibacterial agent is prepared by loading Ag on nitrogen modified nano-zinc oxide; the total weight of the nano-composite antibacterial agent is 0.1 to 3 percent of the total weight of the nano-composite antibacterial coating. The nano-composite antibacterial agent integrates the advantages of nano-silver and the nano-zinc oxide, so the antibacterial effect is safer, stabler and more efficient. The invention further provides a preparation method of the nano-composite antibacterial coating.

Description

Technical field [0001] The invention relates to the field of coatings, in particular to a nano composite antibacterial coating and a preparation method thereof. Background technique [0002] Coating is a fluid or powdery substance that can evenly cover and adhere well to the surface of the object to form a solid film. It is a material with protective, decorative or special functions. If classified according to the dispersion state of film-forming substances and pigments, there are solvent-based coatings, water-based coatings, powder coatings, high-energy ray curing coatings, etc. [0003] With the development of society, antibacterial needs exist in people's daily life, buildings, ships, circulating cooling water and many other fields. Therefore, the development of antibacterial coatings is one of the development directions of the coating industry. [0004] Chinese patent application CN 105838164A discloses a water-based nano antibacterial sound-absorbing coating and a preparation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/14
CPCC08K3/22C08K3/28C08K9/00C08K2003/2296C08K2201/011C09D5/14
Inventor 不公告发明人
Owner FOSHAN SHIRUI LEADING MATERIAL RES INST GENERAL PARTNERSHIP
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