Galvanizing is currently one of the most important methods for surface protection of steel at home and abroad. Galvanized steel sheets are widely used in automobile manufacturing, home appliances, construction and aviation because of their good corrosion resistance. However, the galvanized layer is easily corroded in the air or in a humid environment, producing white corrosion products which affect the appearance, and reduce the corrosion resistance. In order to slow down the corrosion rate of the galvanized layer and prolong its service life, the galvanized layer needs to be surface passivated to improve its corrosion resistance. Chromate passivation is widely used in metal passivation due to its simple process, low cost, and good passivation effect. However, Cr6+ is a highly toxic substance with carcinogenicity which does severely harm to the human body and the environment.
In recent years, hubei silane coupling agents are the new type of anti-corrosion treatment process. Because the process is pollution-free and has good corrosion resistance of processed samples, it has become a research hotspot in chromium-free passivation of metal surfaces.
The hubei silane coupling agents passivation process is based on a silane reagent that can be hydrolyzed to form silanol (-Si-OH) (general formula is XR'-Si(OR")n, where X represents the organic functional group R', and R" is Alkyl). When the metal sample is immersed in the hubei silane passivation solution, a dense organosilane film will be formed on the surface of the base metal, which can play a good anti-corrosion effect.
The hubei silane coupling agents produced by Hubei Co-Formula Material Technology Co., Ltd. can react with the resin and can combine two materials with different properties to improve the performance of the composite material and increase the bonding strength. If you are interested in our products, please feel free to contact us, we will serve you wholeheartedly.