Study On Preparation Of Surface Antibacterial Stainless Steel At Normal Temperature

Antibacterial materials are a kind of new functional materials that have the ability to kill or restrain microorganism activity. As science and technology develops and the level of people's living standard raises, there is increasing request for health and sanitation. Consequently, the quantity and variety of antibacterial materials are in growing demand.Because of its anticorrosion, moldability, compatibility, sense of cleanliness, excellent machining property, strong tenacity in wide temperature range and other benefits, stainless steel has been widely applied in many fields. These include heavy and light industry, medical treatment, foodstuff industry, and construction decoration industry. However, traditional stainless steel has no antibacterial capability, and if medical apparatus and other stainless steel products are infested with bacterials, they will not only endanger patients'life and health, but also lead to large-scale contagions.Currently, antibacterial materials research mainly focus on the fields of antibacterial plastics and antibacterial ceramics, but little attention is paid to antibacterial stainless steel. Researchers on antibacterial stainless steel mostly concern its preparation at present. Several chief methods are proposed, such as infiltration of antibacterial ions by high temperature processing, adding antibacterial ion during the smelting of stainless steel to produce disperse antibacterial stainless steel, painting antibacterial layer on the stainless steel, compound stainless steel and so on. Nevertheless each way has its own weakness: some technic is too complicated;...