大型钢结构防腐中的纳米技巧(国外英文资料).docVIP

大型钢结构防腐中的纳米技术(国外英文资料) Nanotechnology in the embalming of large steel structures Author: origin: construction world update time: 06, 2006 Large steel structures are an important part of a lot of infrastructure. Bridges, power stations, water pipe, oil and gas tanks, large-scale production equipment, ships and offshore structures, tower and many large buildings are a lot of steel structure. Although carbon steel and some low alloy steel have good mechanical properties and reasonable price, they have serious electrochemical corrosion problems. Due to the characteristics of large quantities and long life requirements, the preservative methods needed are also special. In all kinds of corrosion control methods, large steel structures are protected by means of different surface treatment and anti-corrosion coating. So far, it should be said that the protective effect is far from ideal in most cases, mainly due to the problem of covering life span due to chemical and mechanical failure. Therefore, it is an important task to develop high performance, long life, and to meet environmental protection requirements under the new situation. Solving such problems requires high technology and new ideas and adoption. At present, the application of nano-technology in steel structure heavy corrosion products is still in its infancy. Reports on the application of rare products at home and abroad. But it is widely believed that the adoption of nanotechnology will undoubtedly bring the world a great deal. For the simple reason that it shelters in the surface of the material and the protective corrosion products mainly is decided by its microscopic structure, the properties of interface issues involved here, the change of the electrochemical process, transfer behavior and the change of the surface strength of materials and plastic, etc. For example, the introduction of organic coatings for certain kinds of nanoparticles can increase their anti-husband properties, and the plasticity of ino