Composite antibacterial powder and preparation method thereof
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A kind of antibacterial powder and composite technology, which is applied in the field of antibacterial agents, can solve problems such as complex process, and achieve the effect of simple process, high content and good slow release
Active Publication Date: 2011-10-12
SHENZHEN TSINGHUA YUANXING NANO MATERIAL CO LTD
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It needs to be processed many times by wet method, and the process is complicated
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Embodiment 1～24
[0030] A preparation method of antibacterial powder, comprising the following steps:
[0031] Take silver compound, zinc compound and various carriers according to the formula provided in Table 1, mix them well, place them in a porcelain dish, put them in a high-temperature furnace and burn them at 800°C for 3 hours, pass through a 200-mesh sieve after cooling, and take the under-sieve , and mix evenly to get the composite antibacterial powder. Considering that the composite antibacterial powder has different requirements for compatibility due to different antibacterial products when it is applied, the present invention selects different single carriers in the formula to make the antibacterial powder.
[0032] Table 1. The formula example of compound type antibacterial powder embodiment 1~24
[0033]
[0034]
Embodiment 25～28
[0036] A preparation method of antibacterial powder, comprising the following steps:
[0037] Take silver compound, zinc compound and various carriers according to the formula provided in Table 2 and mix well, put them in a porcelain dish, put them in a high-temperature furnace and burn them at 1000°C for 2 hours, pass through a 200-mesh sieve after cooling, and take the under-sieve , and mix evenly to get the composite antibacterial powder.
[0038] Table 2. The formula example of compound antibacterial powder embodiment 25~28
[0039]
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Abstract
The invention provides composite antibacterial powder and a preparation method thereof. The composite antibacterial powder contains nano silver, zinc and nonmetallic minerals such as nano calcium carbonate or nano hydrotalcite, nano titanium oxide and nano bentonite and the like serving as carriers, wherein the content of the silver is 10 to 20 mass percent, and the content of the zinc is 20 to 40 mass percent. The composite antibacterial powder has high bactericidal factor content, is more convenient in compatibility and application, and saves the cost; the particle diameter of the bactericidal factors is nano-scale, so that the bactericidal capability is stronger; the composite antibacterial powder has illumination resistance, does not change color, and has high temperature resistance, good slow-release property and long-acting property; and the preparation method is simple in process, time-saving, labor-saving and high in production efficiency. The composite antibacterial powder serving as an antibacterial agent can be widely applied to various building materials, glass, coating (containing powdery coating), wood, paper and products thereof, plastics, plastic cement, daily ceramic, chemical materials, various home appliances, daily chemical products, textiles and the like.
Description
technical field [0001] The invention relates to an antibacterial agent, in particular to a composite nanoscale antibacterial powder with high silver and zinc content and a preparation method thereof. Background technique [0002] There have been many reports on inorganic antibacterial agents made of metal elements such as silver and zinc combined with various oxides or non-metallic minerals. They have the advantages of non-toxic, broad-spectrum antibacterial, and no drug resistance, and are widely used in the fields of textiles, plastics, plastics, coatings, building materials, daily ceramics, medical and sanitary materials, and chemical materials. [0003] Many inorganic antibacterial agents are prepared by combining metal ions on inorganic compounds or non-metallic mineral carriers through ion exchange. Due to the limited ion exchange capacity, the ability of the carrier to adsorb metal ions is limited, resulting in a low content of bactericidal components of the antibact...
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16A01N25/12A01N25/08A01P1/00
Inventor 蒋华德高培军王红梅蔡海燕曾孔仙
Owner SHENZHEN TSINGHUA YUANXING NANO MATERIAL CO LTD
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