| Nanometer compound material is a new material which takes the nanometer particles in stead of the common abio-filling with the polymers. For the tiny size and tensiometric property effect of the nanometer particles can adorn the inner defects of the polymer and reduce the inner rudimental active group to improve the strength, toughness, resistance to ageing and the heat resisting property.The HIPS is considered tobe the ideal material of the nanometer base in this article. The nanometer TiO2 could satisfy the require that the traditional commodity chemicals couldn't, as a single commodity chemical the TiO2 requests the easier conditions. The addition of the TiO2 can make the inflaming retarding and mechanical property mixture ratio comes the best. The bacteriostasis properbility of the nanometer TiO2 can't reach the ideal effects. After the experiments the Ag carrying as a new technique of metallic-membrane plating can resolve the problems. When the content of the Ag is 2% the bacteriostasis effects is the best.Because of the reunion of the nanometer particle, It refers to the superficial treatment of the nanometer TiO2 particles with the TAS and the inflaming retarding effects of the composite material and the influence to the mechanical property.For the pure TiO2 membrane can bacteriostatic, there were some experiments which compared the bacteriostatic effect under light with no light. The preparation method of the Ag carrying nanometer TiO2 and the 1% Ag content makes the best. The thickness of the Ag-TiO2 film and bacteriostatic property's relative obtain the Ag-TiO2 film is a new kind of bacteriostat which resolves the shortcoming that can't bacteriostatic as the prospective results while lacking of the light. This material can be used as a new multifunctional one that has the ability on inflaming retarding and bacteriostatic. |