Antibacterial coating and preparation method thereof

A technology of antibacterial coating and antibacterial agent, which is applied in the field of antibacterial coating and its preparation, can solve the problems of insufficient stability of nano-silver, shorten the service life of coating, and uneven dispersion, and achieve good compatibility, increase conversion rate, and improve antibacterial effect Effect

Active Publication Date: 2017-02-15
杜一挺
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nano-silver is not stable enough in the coating, it is easy to agglomerate, and the dispersion is not uniform enough
In addition, the addition of nano-titanium dioxide may produce strong oxidizing groups, destroy the coating resin, and reduce the life of the coating.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Antibacterial coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] The present invention also provides the preparation method of described nanometer silver / kaolin antibacterial agent, comprises the steps:

[0029] The first step, prepare zinc oxide / kaolin antibacterial agent:

[0030] (1) 1-100g of kaolin and 10-1000ml of dimethyl sulfoxide (DOSO) solution with a mass percentage of 1%-100% were mixed and stirred for 24-72 hours to form a kaolin / dimethyl sulfoxide complex ; After that, wash twice with pure water and once with an organic solvent to remove impurities and excess dimethyl sulfoxide, and the organic solvent can be one of methanol and ethanol; the washed kaolin / dimethyl sulfoxide The composite is dried in an oven, and the temperature in the oven is 40-90°C. In this embodiment, the baking time is 10 hours.

[0031] (2) Mix the dried kaolin / dimethyl sulfoxide compound with a surfactant at a mass ratio of 200:1-2:1 and stir evenly. The surfactant can be cationic, anionic or nonionic Any one, two or more of the agents; after t...

Embodiment 1

[0049] 1 g of kaolin and 10 ml of 1% by mass DMSO solution were mixed and stirred for 24 hours. After that, it was washed twice with pure water and once with methanol, and dried at 40°C. Mix the dried kaolin / dimethyl sulfoxide compound with sodium lauryl sulfate at a mass ratio of 200:1 and stir evenly, add 10ml of zinc ammonia solution with a concentration of 0.001mol / L, and stir again for 24 hours. Add NaOH at a molar ratio of 1:1 to zinc salt and continue stirring evenly. After 12 hours at 70°C, it becomes zinc oxide antibacterial agent after taking it out.

[0050] Add 1 g of kaolin to 10 ml of 3% DOSO solution by mass, stir for 24 hours, wash it twice with pure water and once with methanol, and then dry it at 50°C to obtain kaolin / dimethylsulfoxide compound; pour 0.1g of PVP into the dried kaolin / dimethyl sulfoxide compound powder and stir evenly; then slowly pour 15ml of 0.005mol / L silver ammonia solution and stir for 24h; Ammonia and hydrazine hydrate were added with...

Embodiment 2

[0053] 100g of kaolin and 1000ml of 100% DMSO solution by mass percentage were stirred for 72 hours, washed with pure water twice and once with ethanol, and then dried at 90°C to obtain a kaolin / dimethylsulfoxide complex; The dried kaolin / dimethyl sulfoxide complex and sodium tripolyphosphate were mixed at a mass ratio of 2:1 and stirred evenly; adding 1000ml concentration of 1mol / L zinc nitrate hexahydrate solution, stirring again for 24 hours, and NaOH Add zinc salt and zinc salt according to the molar ratio of 5:1, in the environment of 800 ℃ for 15 minutes, after taking it out, it will become zinc oxide antibacterial agent.

[0054] Add 100g of kaolin to 1000ml of DOSO solution with a mass percentage of 100%, stir for 72 hours, wash it twice with pure water and once with ethanol, and then dry it at 90°C to obtain a kaolin / dimethyl sulfoxide composite Pour 50g of sodium tripolyphosphate into the dried kaolin / dimethyl sulfoxide compound powder and stir evenly; then slowly po...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to view more

Abstract

An antibacterial coating and a preparation method therefor. The antibacterial coating comprises a nano silver / kaolin antibacterial agent and a zinc oxide / kaolin antibacterial agent, wherein the weight ratio of the nano silver / kaolin antibacterial agent to the zinc oxide / kaolin antibacterial agent is 0-1. The preparation method comprises: separately preparing nano silver / kaolin and zinc oxide / kaolin, mixing the two and adding the mixture into oil paint, and stirring for uniform mixing.

Description

technical field [0001] The invention relates to a coating, in particular to an antibacterial coating and a preparation method thereof. Background technique [0002] In recent years, with the improvement of human beings' requirements for the cleanliness of the living environment, the market's demand for self-antibacterial coatings has become the consensus of people of insight. Most of the antibacterial coatings currently on the market directly add nano-silver and / or titanium dioxide to achieve antibacterial effects. However, nano-silver is not stable enough in the coating, it is easy to agglomerate, and the dispersion is not uniform enough. In addition, the addition of nano-titanium dioxide may produce strong oxidizing groups, which will damage the coating resin and reduce the life of the coating. Contents of the invention [0003] In order to overcome the above-mentioned technical problems, the present invention provides an antibacterial coating. In addition, the invent...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/14
CPCA01N25/08A01N59/16C09D5/14
Inventor 杜一挺
Owner 杜一挺
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap