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Antibacterial and anti-mildew agent, and preparation method and application thereof

An antibacterial and antifungal agent, copper oxide technology, applied in the field of antibacterial and antifungal agents, can solve the problems of high price of nano-silver, easy oxidation and agglomeration of nano-copper, unsatisfactory anti-mold effect of nano-silver and nano-zinc oxide, etc., to achieve Excellent antibacterial and antifungal performance, long-lasting antibacterial performance, good product dispersion effect

Active Publication Date: 2019-09-06
江西赣大材料技术研究有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology describes how it works well with different types of metals like silver or zinc that are commonly found throughout our world today's environment. These metal particles help fight germs from bacteria without affecting their own quality when they come into contact with them during manufacturing processes such as printing, painting, etc., which could lead to contamination issues if these products were intended instead of natural ones. By adding this special particle called CuOx-ZnO, we get better resistance against harmful microorganisms compared to pure Zr02 alone.

Problems solved by technology

This patented technical solution described in this patents relates to finding ways to reduce harm from germs that may be spread through contact with humans during different stages of an illness such as urinary tract disease, skin cancer, etc., without causing negative side reactions on individuals who come into direct contact with these microbes.

Method used

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  • Antibacterial and anti-mildew agent, and preparation method and application thereof
  • Antibacterial and anti-mildew agent, and preparation method and application thereof
  • Antibacterial and anti-mildew agent, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Weigh 0.25g of copper sulfate pentahydrate and 7.5g of zinc nitrate hexahydrate and dissolve them in 20ml of deionized water to obtain solution A;

[0043] Weigh 40g of sodium hydroxide and dissolve in 20ml of deionized water to obtain solution B;

[0044] Mix solution A with solution B to obtain solution C;

[0045] Weigh 10g of sodium lauryl sulfate and dissolve it in 500ml of 80% ethanol to obtain solution D, which is heated to 80°C and then poured into solution C to continue the reaction for 6h.

[0046] After the solution is cooled, centrifuge the final solution in a centrifuge at a speed of 8000r / min for 30min, pour off the supernatant, take the precipitate and wash it back and forth 5 times with water until it is clean, and then put the washed precipitate in a drying oven at 120°C Dry for 12 hours and grind to obtain copper oxide / zinc oxide composite nanoparticles. Wherein, the particle size is 50-100nm, and the copper doping amount is 4%.

[0047] Entrust Chi...

Embodiment 2

[0049] The only difference with Example 1 is: the consumption of copper sulfate pentahydrate is replaced by 0.125g.

[0050] The copper oxide / zinc oxide composite nanoparticles prepared in this example have a size of 50-100 nm and a copper doping amount of 2%.

Embodiment 3

[0052] The only difference with Example 1 is: the consumption of copper sulfate pentahydrate is replaced by 0.375g.

[0053] The copper oxide / zinc oxide composite nanoparticles prepared in this example have a size of 50-100 nm and a copper doping amount of 6%.

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Abstract

The invention relates to an antibacterial and anti-mildew agent, and concretely provides an antibacterial and anti-mildew agent, and a preparation method and an application thereof. The antibacterialand anti-mildew agent of the invention is copper oxide/zinc oxide composite nanoparticles with a copper content of 0.5-10% and a particle size of 20-300 nm. The copper-doped zinc oxide nanoparticles of the invention have excellent antibacterial and anti-mildew properties; and when the amount of the antibacterial and anti-mildew agent added to a bulk material is 1 wt% or above, the antibacterial rate is 99% or above (level 1), and the mildew resistance level reaches level 0. The preparation method of the antibacterial and anti-mildew agent is simple, and the product has the advantages of good dispersion, long-lasting antibacterial property, high efficiency, broad spectrum, convenience in use, no influences on the properties of the bulk material after being added, and suitableness for industrial mass production and promotion.

Description

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Claims

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Application Information

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Owner 江西赣大材料技术研究有限公司
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