Application and Characteristics of Silica in Nano Antibacterial Materials

The white carbon black manufacturer's small series introduces you to the application of white carbon black in antibacterial materials: using the large specific surface area of meteorological method, multi-mesoporous structure on the surface, super strong adsorption capacity and strange physical and chemical properties, silver Functional ions such as ions are uniformly designed into the mesopores on the surface of the fumed silica, and stabilized. The nano-antibacterial powder (particle size is only about 70 nm) with high efficiency, long-lasting, high temperature resistance and broad-spectrum antibacterial properties has been successfully developed. Domestic blanks, and the main technical indicators have reached or exceeded similar products in Japan. After testing, when the concentration of nano antibacterial powder in water is only 0.315%, the antibacterial ability of Gram-positive representative strains and Gram-negative representative strains can be clearly revealed, and the inhibition zone appears 2— 3mm, and with the increase of the concentration of nano antibacterial powder in water, the inhibition zone increased significantly. It has been determined that when the water contains Ag+ of 0.01 mg/1, it can completely kill E. coli in water and can maintain a new flora for up to 90 days. The nano antibacterial powder is applied to the enamel glaze to produce a drum washing machine with anti-mildew and antibacterial functions, and the antibacterial rate is as high as 99% or more. It should be pointed out that the nano antibacterial powder is used in the enamel glaze in harsh conditions, and it must maintain strong antibacterial properties in the alkaline liquid and the high temperature (about 900 ° C). This is another antibacterial powder. Unpredictable. The nano antibacterial powder is added to the interior wall paint to produce an interior wall paint with long-lasting antibacterial and mildew resistance. The nano antibacterial powder is used in women's underwear detergent, wool, cashmere detergent, detergent, hand soap, and tested by the health and epidemic prevention department, and its antibacterial performance is very remarkable. It can be foreseen that with the enhancement of people's health awareness, nano antibacterial powder will gradually be accepted by the general public of relevant application enterprises, and it will emerge in the industries of bills, medical and health, chemical building materials, home appliances, functional fibers and plastic products.