A kind of antibacterial agent and its application

A technology of antibacterial agent and solvent, applied in the field of antibacterial agent and its application, can solve the problems of no antibacterial function, no antibacterial ingredients, easy to produce drug resistance, etc., achieve superior mildew resistance, good antibacterial performance, and less impurities Effect

Active Publication Date: 2021-11-16
广州盛门新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there are antibacterial coatings prepared from traditional Chinese medicine ingredients. Although they are environmentally friendly, they have a single antibacterial effect and are prone to drug resistance.
CN103881487A discloses a kind of antibacterial varnish, and the fillers with coloring effects such as calcium oxide, iron powder, calcium chloride, calcium carbonate, pigments used in it are actually colored paints rather than varnishes, and do not contain antibacterial components in the formula simultaneously, Does not have antibacterial function

Method used

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  • A kind of antibacterial agent and its application
  • A kind of antibacterial agent and its application
  • A kind of antibacterial agent and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Refer to attached figure 1 The schematic diagram of the preparation process of antibacterial agent shows that the preparation method of this example antibacterial agent is as follows:

[0073] Weigh the liquid-2 liquid sodium silicate with a modulus of 3.1-3.4, a Baume degree of 39°-41°, and a specific gravity of 1.37-1.40 and deionized water in a ratio of 1:2, and mix evenly to obtain sodium silicate solution.

[0074] A mixed solution containing 0.01mol / L nitric acid and 0.1mol / L silver nitrate was added to the sodium silicate solution at a volume ratio of 1:3, stirred for 15 minutes, and catalyzed to obtain an acidic sodium silicate solution.

[0075] Prepare dilute ammonia water with a concentration of 5%, and add ammonia water dropwise to the acidic sodium silicate solution under stirring conditions until the brown precipitate dissolves, then stop stirring and drop ammonia water, and let it stand for a few minutes to obtain a silver ion-containing water coagulatio...

Embodiment 2

[0081] This example differs from Antibacterial Agent Example 1 only in that the mass ratio of liquid-2 type liquid sodium silicate to deionized water is 1:400.

Embodiment 3

[0083] This example differs from Antibacterial Agent Example 1 only in that the content of silver nitrate is 0.05mol / L.

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Abstract

The invention discloses an antibacterial agent and its application. This antibacterial agent is prepared by the following preparation method: mix nitric acid and soluble silver salt mixture with sodium silicate solution to obtain acidic sodium silicate solution; add ammonia water to acidic sodium silicate solution to obtain silver ion-containing Hydrogel; aging the silver ion-containing hydrogel to obtain a silver ion-containing wet gel; electrolytically reducing the silver ion-containing wet gel to obtain a nano-silver wet gel; performing solvent replacement on the nano-silver-containing wet gel, It is then mixed with a solution containing a silane coupling agent for surface modification treatment, dried, and heated to remove impurities. The antibacterial agent product has no pollution and less impurities, and the nano-silver particle size can be adjusted according to the specific surface area of ​​the airgel, and has wide application and good application prospect. The antibacterial varnish made of this antibacterial agent can effectively antibacterial for a long time, has good adhesion and water resistance, high hardness, temperature and humidity resistance, antifouling and antifouling, high transparency of the paint film, high gloss, and superior mildew resistance.

Description

technical field [0001] The invention relates to the technical field of antibacterial materials, in particular to an antibacterial agent and its application. Background technique [0002] Antibacterial materials are functional materials that have the function of killing or inhibiting the growth and reproduction of harmful bacteria. Antimicrobial agents can generally be divided into three categories: natural, organic and inorganic. Natural antibacterial agents are mainly animal and plant extracts, such as chitosan, sorbic acid, hinoki alcohol, etc., which have the characteristics of low toxicity and high safety, but have short service life, poor heat resistance, and narrow antibacterial range. The main components of organic antibacterial agents are quaternary ammonium salts, alcohols, bismuth, and pyrrole substances. Organic antibacterial agents have been used for a long time and have strong bactericidal power, but they have poor safety, poor chemical stability, and are prone...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N59/16A01N25/06A01P1/00A01P3/00A01P7/04A01P17/00C09D133/00C09D163/04C09D161/20C09D5/14
CPCA01N25/06A01N59/16C08K2003/0806C08K2201/011C08L2201/10C08L2205/03C09D5/14C09D133/00C08L63/04C08L61/20C08K3/08C08K7/26C08K9/06
Inventor 陈稳城刘克
Owner 广州盛门新材料科技有限公司
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