Zinc oxide whisker compound germicide composition

A compound antibacterial agent and zinc oxide whisker technology, which is applied in biocides, animal repellents, plant growth regulators, etc., can solve the problems of poor tip effect, less active centers of needles, and discoloration of silver ions, etc., and achieve Enhanced antibacterial effect, guaranteed dispersibility and stability, and anti-discoloration effects

Inactive Publication Date: 2004-09-29
SOUTHWEST JIAOTONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its needle-shaped active center is less, and the tip effect is poor. In order to improve the antibacterial effect, silver ions should be added as one of the main antibacterial active ingredients, but the silver ions still face the problem of discoloration

Method used

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  • Zinc oxide whisker compound germicide composition
  • Zinc oxide whisker compound germicide composition
  • Zinc oxide whisker compound germicide composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0017] First, according to the existing preparation method of tetrapod-shaped zinc oxide whiskers (such as the methods of ZL97107607.3 and ZL98111828.3 patents), the tetrapod-shaped zinc oxide whiskers were prepared by heating in an ordinary box-type resistance furnace. However, the temperature should be controlled between 400-700°C, and the whisker growth time should be controlled within 15-20 minutes. Weigh by the amount of Examples 1 to 4 shown in Table 1: a zinc strip with a width of about 5 mm and a thickness of about 0.2 mm; and add Li by the type and amount of each example shown in Table 1 + 、Na + or K + One or a mixture of two or more monovalent metal salts for whisker growth. That is to say, the preparation of the special-purpose embodiments of the present invention 1 to 4 requires a length of 1 to 10 μm, a root diameter of 0.1 to 2 μm, and contains a required amount of monovalent metal oxide (excess oxygen content) in the crystal lattice. Tetraacicular ZnO whisker...

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Abstract

The zinc oxide whisker compound germicide composition contains: four-needle shaped zinc oxide whisker 50-80 weight portions, nano zinc oxide 5-25 weight portions, nano titanium oxide 5-25 weight portions, and sodium silicate carrier 10-40 weight portions. It has the advantages of high germicidal effect, capacity of being reused, stable effect, no color change, no need of photocatalyst, convenient use, etc.

Description

Technical field: [0001] The invention relates to an antibacterial agent material, in particular to an inorganic composite antibacterial agent material. It can be used in food packaging, building materials, medical equipment, sanitary products, daily necessities, sanitary ware, household appliances, communication equipment and other fields. Background technique: [0002] Harmful bacteria exist in various places around us, such as the floor and wall of the house we live in, the furniture we use, home appliances, clothing and daily necessities, etc. In 1996, a nationwide outbreak of 0-157 Escherichia coli infection in Japan not only killed many people, but also caused global panic. According to statistics, the number of deaths caused by bacterial infection in the world is close to 20 million every year, accounting for more than 30% of the total number of deaths; the cross-bacterial infection rate of various hospitals exceeds 10%. To effectively prevent the generation and grow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N59/16
Inventor 周祚万楚珑晟段小飞易锦唐伦亮宋志蓉
Owner SOUTHWEST JIAOTONG UNIV
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