Silver-carrying active aluminum oxide antimicrobials and method for preparing the same

Abstract

The present invention discloses silver carrying active alumina antiseptic and its preparation process. The antiseptic with silver content of 1-9 wt%, preferably 3-6 wt%, is prepared through mixing active alumina, AgNO3 and deionized water, ball milling for 20 min, stoving at 60 deg.c, grinding and 150-250 mesh sieving, heat treatment at 1100 deg.c for 1 hr in the temperature raising rate of 35 deg / min and under oxidizing atmosphere, and cooling in the furnace. The antiseptic possessing high bacteriostasis rate is applied mainly in producing antiseptic daily sanitary ceramic product.

Description

technical field [0001] The invention relates to an antibacterial agent, in particular to a silver-loaded active alumina antibacterial agent and a preparation method thereof. Background technique [0002] With the continuous improvement of people's understanding of microorganisms in the living environment, while utilizing the beneficial properties of microorganisms, they are also very vigilant about their harmfulness as pathogenic bacteria. According to reports, in 1995, about 52 million people died in the world every year, of which 17 million were caused by bacterial infection, accounting for about 1 / 3. In 1996, the pathogenic E. coli 0-157 that occurred in Japan caused a nationwide epidemic The food poisoning incident once caused panic all over the world. In addition, microorganisms cause decomposition, deterioration, and corruption of various industrial materials, cosmetics, and pharmaceuticals, thereby shortening the lifespan of products. In the modern society with scie...

AI Technical Summary

Problems solved by technology

The main disadvantages of the existing silver-loaded antibacterial agents: first, the production heat treatment temperature of antibacterial products can only withstand less than 1000 ° C; It is easy to be reduced to elemental silver and be taupe and affect the appearance of the product; the third is that the cost of silver-loaded antibacterial products is higher (Wang Fen, Zhu Jianfeng