Zirconium phosphate-loaded silver antibacterial agent
Inorganic silver antibacterial agent-Japanese glass silver-loaded system
Silver nitrate complex antibacterial agent
Silver molybdate antibacterial agent
Silver-loaded zeolite antibacterial agent
A composite antibacterial agent, characterized in that the composite antibacterial agent is prepared by the following steps: a. Preparation of silver complex: Dissolve silver chloride or silver acetate in a mixed solution of sodium thiosulfate and sodium sulfite, while adjusting the pH of the solution to 4-5 with acetic acid, and stir for 12-18 hours at a temperature of 20-40°C, where S2O32- is mixed with Ag+ and The molar ratio of SO32- is 3:1:1-5:1:1; b. Heat the silica sol to 25~35℃ and stir the silica sol liquid while adding dropwise the mixed solution prepared in step a. In the silica sol, continue stirring for 5-10 hours after the dropwise addition to obtain an inorganic composite solution. The volume ratio of the silica sol to the silver complex solution prepared in step a is 100:25~300; c. Make the solution prepared in step b The obtained mixed solution continues to be kept warm at 25-35°C, and while stirring, add cetylpyridinium chloride or cetylpyridinium bromide or 2n acylisothiazolone organic antibacterial agent dropwise into the mixed solution. The weight of the added cetylpyridinium chloride or cetylpyridine bromide or 2n acylisothiazolone is 0.625% to 6% of the weight of the silica sol. After the addition is completed, stir for 1-5 hours to obtain Inorganic composite solution of silica sol and silver complex and organic-inorganic composite solution of organic antibacterial agent; d. Dry or spray the organic-inorganic composite solution prepared in step c at a temperature of 50-80°C After drying, a white powdery composite antibacterial agent is obtained.
Colorless and transparent nano-silver solution
Product introduction
"Colorless and transparent nano-silver solution", this product is a very stable complex silver solution. The production technology is internationally leading. At present, our company can produce three types of colorless and transparent nano-silver solutions: acidic, neutral, and alkaline. If the solution can be used scientifically and rationally, it has good safety, reliability, and extraordinary sterilization functions. No matter how long it is used, it will not change color or oxidize. It is dozens of times more antibacterial than ordinary colored monomer nanosilver solution or ionic nanosilver solution, and has rapid sterilization function. At SGS in Shanghai, GB15979-2002 Appendix C4 Antibacterial Performance Experimental Method of Dissolvable Antibacterial (Inhibitory) Products was used to take a 10ppm colorless and transparent nano-silver solution and conduct an antibacterial test on E. coli. The result was that the bacterial reduction rate within 2 minutes was 99.99 %. Test report NO: SHFDO060300051AN.
Product characteristics
Ag particle size ≤0.5nm.
Ag content concentration, conventional products are below 10000ppm.
Status: Colorless and transparent liquid.
PH value = 7 (neutral)
Safe and environmentally friendly.
Antibacterial property: dozens of times stronger than monomer or ionic nanosilver.
Antibacterial and bactericidal properties: broad-spectrum bactericidal, no drug resistance.
It has strong antioxidant properties and will not change color no matter how long it takes when sprayed onto white or various fabrics or papers.
Can be dispersed in water or various organic solvents.
Application fields
Production of various external antiseptics, including various antibacterial gels, lotions, powders and tablets.
Can be added to various water-based and oil-based paints.
Added to various textile paper products, especially those with special requirements for color changes.