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The material is made of green copper passivation coating
Copper is one of the earliest found in mankind, slightly hard, very tough, wear resistance, there is a good ductility, thermal conductivity and electrical conductivity is better, is widely inexpensive ways to cover old concrete patio used in electrical, light industry, machinery manufacturing, construction industry , Defense industry and other fields, the consumption of non-ferrous metal materials in China after the aluminum. Copper and copper alloys are also important materials in the marine industry and have been widely used in desalination plants, offshore oil recovery platforms and other coastal and subsea facilities.
Copper and some of its alloys have good corrosion buy composite decking dubai resistance and are stable in dry air. But in the humid air in its surface can generate a layer of green alkaline copper carbonate, commonly known as copper green, easy to alkali erosion.
In order to improve the corrosion resistance of metal materials and enhance the adhesion of organic coatings and metal surfaces, various metal surface pretreatment methods and processes have been developed. In the traditional metal surface pretreatment process, the most widely used phosphating and chromate passivation treatment. However, these two covering concrete outdoors technologies have high pollution, high toxicity and other shortcomings. With the emphasis on environmental issues, the use of these two technologies is being gradually limited, on the verge of prohibition. At present, organosilane metal surface treatment technology is considered to be the most promising one.
The results show that the combination of silane coating and copper matrix with TUA enhancement is improved obviously. The electrochemical impedance spectroscopy showed that the corrosion resistance of the silane coating was also improved after adding TUA. The enhancementWood Plastic Fence, Wood Plastic Composite Supplier - Shanghai Seven Trust mechanism of TUA is that it can crosslink the epoxy groups on the one hand to improve the physical barrier effect of the silane coating. On the other hand, TUA and Cu have strong interaction, which improves the bonding performance of the silane coating with the copper matrix.
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