Inorganic antiseptic of zinc oxide lattice carried silver and its prepn

An inorganic antibacterial agent, zinc oxide technology, applied in the field of zinc oxide lattice silver-loaded inorganic antibacterial agent and its preparation, can solve unrelated problems, achieve high safety, excellent performance, and easy control of process conditions

Active Publication Date: 2006-05-17
SOUTHWEST JIAOTONG UNIV +1
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  • Abstract
  • Description
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Problems solved by technology

This antibacterial agent does not involve the Ag

Method used

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  • Inorganic antiseptic of zinc oxide lattice carried silver and its prepn
  • Inorganic antiseptic of zinc oxide lattice carried silver and its prepn
  • Inorganic antiseptic of zinc oxide lattice carried silver and its prepn

Examples

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Embodiment Construction

[0034] The raw material composition and preparation process conditions of Examples 1 to 8 of the present invention are shown in Table 1, and the preparation steps are as follows

[0035] a. Weigh the raw materials according to the weight percentage listed in the table;

[0036] B. Dissolving the silver salt with deionized water or making it into a suspension, the concentration in percentage by weight is 10% to 20%;

[0037] c. Spray the above-mentioned silver-containing solution or suspension into zinc oxide powder stirred at a slow speed at 28-60% rpm, and then disperse with a high-speed mixer at 1000-2000 rpm;

[0038] d. The mixed raw materials are air-dried at 110-120°C for 60-90 minutes to quickly remove the moisture in the system;

[0039] e. After mixing and drying the materials, set the temperature in the table, N 2 Roasting under the atmosphere for a set time allows silver ions to dissolve into the zinc oxide lattice at high temperature to obtain a silver-zinc compo...

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Abstract

The inorganic antiseptic consists of zinc oxide with semiconductor characteristic and Ag ion, where the Ag ion is in the mass fraction of 0.1-10 %, and the zinc oxide is one or several kinds of four-needle zinc oxide whisker, nanometer zinc oxide and common zinc oxide powder. The Ag ion is provided by one or several kinds of silver nitrate, silver carbonate, silver sulfate, silver chloride and sliver oxide, and is carried in the lattice of zinc oxide by means of high temperature solid solution technology. The inorganic antiseptic of the present invention has wide antiseptic spectrum, high efficiency, lasting antiseptic effect and high safety, and is suitable for food packing, building material, medical equipment, fabric, sanitary article and other fields.

Description

technical field [0001] The invention relates to an antibacterial agent and a preparation method thereof, in particular to a zinc oxide lattice silver-loaded inorganic antibacterial agent and a preparation method thereof. Background technique [0002] Due to Ag + Ions have the characteristics of broad-spectrum antibacterial, high bactericidal efficiency, and are not easy to produce drug resistance. Therefore, silver-based antibacterial agents occupy an important position in antibacterial agents, especially inorganic antibacterial agents, and are widely used in food packaging, building materials, medical devices, and textiles. , sanitary products, daily necessities, sanitary ware, household appliances, communication materials and other fields. However, due to the antibacterial active substance Ag + The chemical properties of ions are extremely active, and it is easy to transform into brown-black silver oxide, or be reduced to Ag simple substance to change color. The discolo...

Claims

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Application Information

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IPC IPC(8): A01N59/16A01P1/00
Inventor 周祚万罗雁冰王凯刘国梅
Owner SOUTHWEST JIAOTONG UNIV
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