Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Zinc oxide/metal antibacterial powder and preparation method thereof

A zinc oxide, antibacterial powder technology, applied in the fields of botanical equipment and methods, antifouling/underwater coatings, and biocide-containing paints, etc. , low cost, good product dispersion effect

Pending Publication Date: 2022-07-05
中氪新能源科技(上海)有限公司
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Chinese invention patent (publication number CN112573560A) discloses a preparation method of highly dispersed zinc oxide, which is carried out in four steps. -methylene)-2,4,6-trimethylbenzene and 5-(1-tetrazole)isophthalic acid, and then calcined at high temperature, the process is complicated and the cost is high
[0009] Chinese invention patent (publication number CN112777627A) discloses a method for preparing nano-zinc oxide, which uses a V-shaped microchannel reactor to prepare zinc hydroxide and then dries and calcines it. The output is limited and the energy consumption is high.
[0010] Chinese invention patent (publication number CN112266010A) discloses a zinc oxide production process, including the following steps: crushing zinc ingots to obtain zinc lumps, grinding the zinc lumps, heating and stirring the zinc powder, and pouring the zinc powder into the high-temperature zinc powder Add deionized water, then add sulfuric acid to the zinc powder aqueous solution to obtain zinc sulfate, dry the zinc sulfate and add it to the container, and add sodium carbonate to the container to react to obtain zinc carbonate, wash the zinc carbonate with water, and then Carry out drying treatment and calcining at 400°C. During the calcining process, beating is performed to obtain zinc oxide, ball milling, and finally zinc oxide is obtained. The process is more complicated, requires high temperature treatment, and consumes more energy.

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
  • Zinc oxide/metal antibacterial powder and preparation method thereof
  • Zinc oxide/metal antibacterial powder and preparation method thereof
  • Zinc oxide/metal antibacterial powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Prepare 100ml of 0.1mol / L zinc chloride aqueous solution, 100ml of 0.4mol / L sodium hydroxide aqueous solution, add 7.32g of ultrafine Zn powder to the zinc chloride solution, heat to 90°C, add the prepared sodium hydroxide solution, stir After 20 minutes, the precipitate was centrifugally filtered and dried at 100°C to obtain zinc oxide / zinc antibacterial powder.

[0036] The powder was configured as a water-based paint, and the antibacterial rates of Escherichia coli and Staphylococcus aureus were tested by HG / T 3950-2007 standard, and the results were all greater than 99.92%. The antiviral activity rate against H1N1 influenza A virus was tested by ISO 21702:2019, and the result was greater than 99.92%.

Embodiment 2

[0038] Prepare 100ml of 2mol / L zinc nitrate aqueous solution and 100ml of 4mol / L potassium hydroxide aqueous solution, add 0.16g of ultrafine Cu powder to the zinc chloride solution, heat to 70°C, add the prepared potassium hydroxide solution, stir for 180 minutes, The precipitate was centrifugally filtered and dried at 100°C to obtain zinc oxide / copper antibacterial powder.

[0039] The powder was configured into a water-based paint, and the antibacterial rates of Escherichia coli and Staphylococcus aureus were tested by HG / T 3950-2007 standard, and the results were all greater than 99.95%. The antiviral activity rate against H1N1 influenza A virus was tested by ISO 21702:2019, and the result was greater than 99.95%.

Embodiment 3

[0041] Prepare 100ml of 1mol / L zinc sulfate aqueous solution, 100ml of 2mol / L sodium hydroxide aqueous solution, add 8.14g of ultrafine Al powder to the zinc chloride solution, heat to 60°C, add the prepared sodium hydroxide solution, stir for 60 minutes, The precipitate was centrifugally filtered and dried at 100°C to obtain zinc oxide / aluminum antibacterial powder.

[0042] The powder was configured as a water-based paint, and the antibacterial rates of Escherichia coli and Staphylococcus aureus were tested by HG / T 3950-2007 standard, and the results were all greater than 99.90%. The antiviral activity rate against H1N1 influenza A virus was tested by ISO 21702:2019, and the result was greater than 99.90%.

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
sizeaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of antibacterial powder, and discloses a zinc oxide / metal antibacterial powder preparation method, which comprises: preparing a zinc salt aqueous solution with a concentration of 0.1-2 mol / L, (2) preparing an alkali metal hydroxide aqueous solution with a concentration of 0.1-4 mol / L, (3) adding a superfine metal core into the zinc salt aqueous solution, and heating to a temperature of 60-90 DEG C; (4) adding a certain amount of the hydroxide aqueous solution, so that the molar ratio of the hydroxide to the zinc salt in the mixed solution is 1: 2-1: 4; and (5) stirring for 20-180 minutes, filtering and drying to obtain the zinc oxide / metal antibacterial powder. The invention also discloses a microstructure of the zinc oxide / metal antibacterial powder prepared by the method. Through the low-temperature preparation method, the nano zinc oxide forms a semiconductor-metal interface, and the antibacterial performance is improved.

Description

technical field [0001] The invention relates to the technical field of antibacterial powder, in particular to a zinc oxide / metal antibacterial powder and a preparation method thereof. Background technique [0002] As a new type of environmentally friendly multifunctional material, nano-zinc oxide has excellent properties in magnetic, optical, electrical, sensitive, antibacterial disinfection, ultraviolet shielding and so on. [0003] It is non-toxic, odorless, non-irritating to the skin, and has good thermal stability. It is a topical drug for the skin, and can also be used as a sunscreen in cosmetics to prevent UV damage and antibacterial and deodorizing. It can be used to produce deodorant, antibacterial, antibacterial Ultraviolet fibers are used to make surgical gowns, nurses' clothes, underwear, outerwear, shoes, hats, socks, etc., and can also be added to organic materials such as coatings to make antibacterial boards, coatings, etc. [0004] At present, doping or modi...

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 Applications(China)
IPC IPC(8): A01N59/16A01N59/06A01N59/20A01N25/34C09D5/14
CPCA01N59/16A01N59/06A01N59/20A01N25/34C09D5/14
Inventor 江善应
Owner 中氪新能源科技(上海)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com