Ultrahigh-efficiency nano-copper antibacterial agent and preparation method thereof

A technology of nano-copper and antibacterial agent, applied in the field of ultra-efficient nano-copper antibacterial agent and its preparation, can solve the problem that the bactericide cannot withstand repeated washing and the like, and achieve the effects of low cost, simple process and low biological toxicity

Pending Publication Date: 2021-03-05
甘肃省科学院实验工厂有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a humid environment, the leaching fungicide uses a controlled release mechanism to gradually and continuously release from the cotton fabric to the surrounding environment. It is effective against most bacteria and fungi, but this fungicide cannot withstand repeated washing.

Method used

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  • Ultrahigh-efficiency nano-copper antibacterial agent and preparation method thereof
  • Ultrahigh-efficiency nano-copper antibacterial agent and preparation method thereof
  • Ultrahigh-efficiency nano-copper antibacterial agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high-efficiency copper nanoparticle liquid antibacterial agent, the ultra-high-efficiency nano-copper antibacterial agent is composed of core-shell copper nanoparticles and phosphate buffer solution, and the concentration of nano-copper is 1 × 10 -7 g / ml, 2×10 -7 g / ml, 3×10 -7 g / ml, 3.5×10 - 7 g / ml, 4×10 -7 g / ml; during preparation, weigh 0.01g, 0.02g, 0.03g, 0.035g, and 0.04g of nano-copper particles, inject 5mL of PBS buffer into the centrifuge tube, add nano-copper powder, and ultrasonically disperse for 10 minutes. Using the dilution method, the final concentration was 1×10 -7 g / ml, 2×10 -7 g / ml, 3×10 -7 g / ml, 3.5×10 -7 g / ml, 4×10 -7 g / ml nano copper antibacterial agent.

[0019] The antibacterial agent prepared in this embodiment has different antibacterial rates in different concentrations. Such as figure 1 shown, for a nanometer copper concentration of 1×10 -7 g / ml, 2×10 -7 g / ml, 3×10 -7 g / ml, 4×10 -7 For the antibacterial agent of g / ml, the anti...

Embodiment 2

[0021] An ultra-high-efficiency copper nanoparticle antibacterial textile. The antibacterial textile is composed of core-shell copper nanoparticle as the main antibacterial material, which is attached to the surface and interior of textile fibers through ultrasonic technology. The process is simple and environmentally friendly. The concentration of nano-copper in the high-efficiency copper nanoparticle antibacterial textiles was 8×10 -7 g / ml, 1×10 -6 g / ml, 2×10 -6 g / ml. During preparation, according to the method in Example 1, the concentration of 8 × 10 -7 g / ml, 1×10 -6 g / ml, 2×10 -6 Each 100ml of nano-copper dispersion liquid of g / ml was ultrasonically treated for 10min to make it evenly dispersed, and then 1g of each textile that had been boiled and cleaned was put into it respectively, and ultrasonically treated for 20min. Finally, rinse with distilled water and dry to obtain ultra-high-efficiency nano-copper antibacterial textiles.

[0022] The prepared antibacteria...

Embodiment 3

[0024] A highly washable copper nanoparticle antibacterial textile. The antibacterial textile described in this embodiment has high washability on the basis of high-efficiency antibacterial. In view of the 50 times of washing resistance currently promoted in the market, the antibacterial textile has reached 100 times of washing without failure. According to the raw material characteristics and processing methods of this embodiment, it can be washed 200 times, 500 times, or even 1000 times without failure, and can widely meet the different needs of the civilian market and the military field. Considering the loss of antibacterial materials before and after washing, on the basis of keeping the characteristics of textiles unchanged, a copper treatment concentration of 5×10 was developed. -6 g / ml, 1×10 -5 g / ml, 2×10 -5 g / ml of high washable antibacterial textiles. The preparation method is the same as in Example 2. Since the amount of copper added is on the order of 1 / 100,000, ...

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Abstract

The invention relates to the technical field of bactericides, in particular to an ultrahigh-efficiency nano-copper antibacterial agent and a preparation method thereof, and aims to provide the ultrahigh-efficiency nano-copper antibacterial agent and the preparation method thereof. The ultrahigh-efficiency nano-copper antibacterial agent has the properties of high antibacterial property, high washability, low cost, environmental friendliness, extremely low consumption of antibacterial raw materials and the like. The ultrahigh-efficiency nano-copper antibacterial agent is composed of core-shelltype copper nanoparticles and a phosphate buffer solution, wherein the weight parts of the core-shell type copper nanoparticles and the phosphate buffer solution are 1*10 <-7> to 2*10 <-5> parts of the core-shell type copper nanoparticles, and 5-95 parts of the phosphate buffer solution; The ultrahigh-efficiency nano-copper antibacterial agent has the beneficial effects that the ultrahigh-efficiency nano-copper antibacterial agent is efficient in antibiosis, and the antibacterial rate can reach 99% or above under the condition that the addition amount of copper is extremely low. The antibacterial textile is efficient and washable, the maximum washing frequency range is 10 times to 100 times, and different application fields are met.

Description

technical field [0001] The invention relates to the technical field of bactericides, in particular to an ultra-high-efficiency nano-copper antibacterial agent and a preparation method thereof. Background technique [0002] In recent years, many fungicides have appeared on the market, mainly biocides and bioinhibitors, leaching and binding fungicides, controlled release barriers and detergent resistance. Biocides are able to interrupt the normal metabolism of microorganisms and inhibit their growth, thereby imparting antibacterial and antifungal activity to cotton fabric fibers. Commonly used in the textile industry are leaching biocides, which do not chemically bind to the cotton fabric or fibers. In a humid environment, the leaching fungicide uses a controlled release mechanism to gradually and continuously release from the cotton fabric to the surrounding environment. It is effective against most bacteria and fungi, but this fungicide cannot withstand repeated washing. B...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M11/71C09D5/14
CPCD06M11/83D06M11/71D06M16/00C09D5/14
Inventor 吴志国王硕峰祝英闫鹏勋师娟
Owner 甘肃省科学院实验工厂有限责任公司
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