Nano silver antibacterial agent and preparation method thereof
An antibacterial agent and nano-silver technology, which is applied in the field of nano-silver antibacterial agent and its preparation, can solve problems such as environmental pollution of silver-loaded antibacterial agents, achieve stable physical and chemical properties, reduce costs, and improve utilization.
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Embodiment 1
[0042] A kind of nanometer silver antibacterial agent, is made of the raw material of following weight part:
[0043]
[0044]
[0045] The preparation method of above-mentioned nano-silver antibacterial agent, comprises the following steps:
[0046] Step 1: Silver nitrate is mixed with 40 parts of water evenly to prepare an aqueous solution of silver nitrate; sodium hydroxide is mixed with 20 parts of water to prepare an aqueous solution of sodium hydroxide;
[0047] Step 2: Add titanium dioxide to the planetary mixer, then add silver nitrate aqueous solution, mix until uniform, add sodium hydroxide aqueous solution, mix until uniform, and obtain wet material;
[0048] Step 3: put the wet material into a box-type electric drying oven and dry at 105°C until the free water content is 1.2wt%, to obtain a dry material;
[0049] Step 4: put the above dry material into an electric roller kiln for 1 hour at 280°C to obtain a calcined material;
[0050] Step 5: Put the calcined...
Embodiment 2
[0052] A kind of nanometer silver antibacterial agent, is made of the raw material of following weight part:
[0053]
[0054] The preparation method of above-mentioned nano-silver antibacterial agent, comprises the following steps:
[0055] Step 1: silver nitrate is mixed uniformly with 70 parts of water to prepare silver nitrate aqueous solution; sodium hydroxide is mixed with 30 parts of water to prepare sodium hydroxide aqueous solution;
[0056] Step 2: Add titanium dioxide to the planetary mixer, then add silver nitrate aqueous solution, mix until uniform, add sodium hydroxide aqueous solution, mix until uniform, and obtain wet material;
[0057] Step 3: put the wet material into a box-type electric drying oven and dry at 105°C until the free water content is 1.6 wt%, to obtain a dry material;
[0058] Step 4: Put the above-mentioned dry material into an electric roller kiln for 3 hours at 290°C to obtain a calcined material;
[0059] Step 5: Put the calcined materi...
Embodiment 3
[0061] A kind of nanometer silver antibacterial agent, is made of the raw material of following weight part:
[0062]
[0063] The preparation method of above-mentioned nano-silver antibacterial agent, comprises the following steps:
[0064] Step 1: Silver nitrate is mixed with 70 parts of water evenly to prepare an aqueous solution of silver nitrate; sodium hydroxide is mixed with 40 parts of water to prepare an aqueous solution of sodium hydroxide;
[0065] Step 2: Add titanium dioxide to the planetary mixer, then add silver nitrate aqueous solution, mix until uniform, add sodium hydroxide aqueous solution, mix until uniform, and obtain wet material;
[0066] Step 3: put the wet material into a box-type electric drying oven and dry at 105°C until the free water content is 1.3wt%, to obtain a dry material;
[0067] Step 4: Put the above-mentioned dry material into an electric roller kiln for 4 hours at 300°C to obtain a calcined material;
[0068] Step 5: Put the calcine...
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Abstract
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