Preparation method and uses of nano-silver antimicrobial powder
A production method and technology of antibacterial powder, which are applied in the fields of application, botanical equipment and methods, chemicals for biological control, etc. The method is simple and convenient, the sterilization efficiency is high, and the manufacturing cost is low.
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[0015] Example 1:
[0016] The preparation method of nano silver antibacterial powder of the present invention, it comprises the following steps:
[0017] 1) get content and be 20% nano Sio2 sol 10 liters; Add 5 liters of 1.5% silver nitrate aqueous solution under the condition of high-speed stirring; Then gradually add 2% hexadecyl trimethyl bromide under the condition of high-speed stirring 5 liters of ammonium chloride solution; heat the above solution to 30°C, then stir at high speed for 30 minutes; add a mixture of 0.8 L of n-butyl titanate, 1.2 liter of pentapropanol, and 0.15 liter of glacial acetic acid for mixing, and stir for 1 hour at high speed; After aging the above solution for 24 hours, dry it in an environment of 90-120°C to obtain a micron-sized inorganic antibacterial powder; the contents of each component are mass percentages;
[0018] 2) adding 0 to 20 micron TiO of the same quality to the inorganic antibacterial powder obtained in step 1) for mixed ball m...
Example Embodiment
[0024] Example 2:
[0025] The preparation method of nano silver antibacterial powder of the present invention, it comprises the following steps:
[0026] The preparation method of nano silver antibacterial powder of the present invention, it comprises the following steps:
[0027] 1) get content and be 10% nano Sio2 sol 100 liters; Add 1% silver nitrate aqueous solution 50 liters under the condition of high-speed stirring; Then gradually add 1.5% hexadecyl trimethyl bromide under the condition of high-speed stirring 50 liters of ammonium chloride solution; heat the above solution to 20°C, then stir at high speed for 20 minutes; add a mixture of 8 liters of n-butyl titanate, 10 liters of pentapropanol, and 1.5 liters of glacial acetic acid for mixing, and stir at high speed for 1 hour; After aging the above solution for 20-30 hours, dry it at 90-120°C to obtain a micron-sized inorganic antibacterial powder; where A is a value greater than zero, and the contents of each compon...
Example Embodiment
[0034] Example 3:
[0035] The preparation method of nano silver antibacterial powder of the present invention, it comprises the following steps:
[0036] 1) get content and be 15% nano Sio2 sol 50 liters; Add 25 liters of 1.5% silver nitrate aqueous solution under the condition of high-speed stirring; Then gradually add 2% hexadecyl trimethyl bromide under the condition of high-speed stirring 25 liters of ammonium chloride solution; heat the above solution to 20-40°C, and then stir at high speed for 20-40 minutes; Stir for 1 hour; after aging the above solution for 20-30 hours, dry it at 90-120°C to obtain a micron-sized inorganic antibacterial powder; where A is a value greater than zero, and the content of each component All are percentages by mass.
[0037] 2) adding 0 to 20 micron TiO of the same quality to the inorganic antibacterial powder obtained in step 1) for mixed ball milling, and stirring evenly to make a composite antibacterial powder;
[0038] 3) Mix 30% of ...
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