Study On Fluorocarbon Low Surface Energy Antifouling Coatings

Biofouling at the bottom of the Vessels has been plagued people for a long time. Painting low surface energy antifouling coatings is an important way to prevent the biofouling. Based on low surface energy it is difficult for marine fouling organisms to attach. Fluorocarbon coating is a kind of low surface energy antifouling paint. Compared with traditional coatings it has excellent properties, such as long durability, corrosion resistance, chemical resistance, hardness, anti-static and anti-nuclear radiation. In addition, with the introduction of nanotechnology, it will help to improve the coating performances with the further optimization of fluorocarbon low surface energy antifouling coating formulation and study on the influence of nano-powders.In this study, with the dynamic simulation of sea water corrosion tester, used to simulate the real service condition in the seawater, and combined testing the mechanical properties of coatings, we studied the coating performance changes over time, analyzed the curve of EIS and researched the influencing factors of antifouling agents Besides, we use different amounts of nano-zinc oxide to replace the paint formulations prepared in the ordinary zinc oxide coating.Through the analysis of various coating performance, wo can further study the properties of nano-powders on the impact of coatings.The research result shows that, through the analysis of coating performance, we get two paint formulations finally. By contrast, the advantage of steel optimization plant is reflected in the relatively low erosion rate and surface roughness; and the aluminum's is reflected in the surface contact angle slightly. With the nano coating formulations content increased, the sample surface appears a significant uplift phenomenon. Satisfied by the dynamic test, we know that with the improvement of nano content the coating's protective property decrease, nano-coating has a slightly higher impedance value compared with those without nano-powders, but improves corrosion resistance by analyzing the EIS curve.