| With its reliable and durable antibacterial properties, based in the application of architecture coatings, put forward the new idea that inorganic antibacterial powder being used in coatings. In this paper, the antibacterial properties infection by the kinds of the inorganic powder and other factors is studied. The antibacterial coatings modified by the nanometer materials are successfully developed; meanwhile, the nanometer antibacterial aid is manufactured.The qualitative and quantitative experiments indicated that the inorganic materials manufactured in our country have antibacterial property. The carrier which holding Ag+ has the most distinct antibacterial property. The inorganic antibacterialpowder of Ag and Ce being carried by the nanometer silicon dioxide material manufactured in this paper has excellent antibacterial property; the most important is that when it is used in the coating, the coating doesn't change color, and its antibacterial index better than the similar production.According to certain mechanics route, using some kinds of dispersion means, the antibacterial coatings is obtained by adding nanometer inorganic powders. The coatings are tested comply with the requirements of national standards GB/T 9756 -2001, the synthesis performance exceed the index of first-rank production, in the same time the average antibacterial rate of these inorganic materials can reach 90 percent. When the weight amount of the inorganic antibacterial powder of Ag+ and Ce2+ reaches 2 percent, the antibacterial rate of the coating is 99.976 percent.In order to have the better dispersion, the nanometer antibacterial additive is studied in this paper. These additives can be filled in the coatings very conveniently,and even when the adding amount is as little as 2 percent, the coating can have better antibacterial effect, and the antibacterial rate can reach 99.97 percent. |
