Liquid nanometer simple substance silver antibacterial agent and preparation method thereof

Abstract

Disclosed is a liquid state nano antimicrobial agent of Argentine simple substance, which comprises the following constituents (by weight percent): argentic salt 2-5%, nano Argentine generating agent 0.5-5%, Argentine complexing agent 0.5-8%, and water 82-97%. In the preparation, ionic type high molecular polymer is used as the Argentine complexing agent.

Description

Technical field [0001] The invention relates to an antibacterial agent, in particular to a liquid nano-silver antibacterial agent and a preparation method of the antibacterial agent. Background technique [0002] There are a variety of harmful microorganisms in people's living environment, which have a negative impact on human life. According to the survey of the Scottish Telephone Company in the United Kingdom, colds, pharyngitis, meningitis, hepatitis, pink eye, skin diseases, tuberculosis and other more than ten kinds of infections The disease can be spread through the use of the telephone. People found a kind of "refrigerator syndrome" syndrome caused by eating foods contaminated by bacteria in the refrigerator, which caused gastroenteritis, sore throat, nausea, and dizziness. Therefore, various antibacterial materials closely related to people's lives were studied. Has become a hot topic today. [0003] Antibacterial materials refer to giving the materials good antibacterial...

AI Technical Summary

Problems solved by technology

This kind of antibacterial agent has good safety and is a kind of antibacterial agent that is widely used at present, but its stability is poor, easy to change color, and it is a powder material, which needs to be dispersed again before application

[0009] The heat resistance of the second type of inorganic antibacterial agent is higher than that of the first type of inorganic antibacterial agent, but it must have ultraviolet radiation, oxygen or water to play a bactericidal effect, and there is also the problem of re-dispersion, so the application is limited

Like this, can increase production cost greatly, have increased a process again simultaneously, prolong production cycle; The 2nd, the product particle diameter that obtains in the two patent application methods is larger, and the range is wider (1-50nm)

And the smaller and narrower the distribution of nanometer particle size, the higher its activity, the better the antibacterial effect and workability; the third, the silver salts used in the two patented methods are only silver nitrate, and the cost is high (in nano silver In the preparation process of the silver salt, the cost of the silver salt is one of the most critical factors affecting the cost of the whole product)

In the current technical field of nano-silver preparation, although silver nitrate is expensive, it is widely used because it can be well dissolved in distilled water or pure water; silver chloride is very expensive and insoluble in water, so it is generally not used. Potassium silver cyanide is used because the product contains potassium cyanide, which is toxic and generally not used; silver sulfate is much lower in price than silver nitrate, and its safety is also very good, but because it is slightly soluble in water, it has not been used at present. Applied to the preparation of nano silver

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