DC高耐候性丙烯酸聚氨酯防腐蚀涂料体系

DC High Climate Resistance Acrylic Polyurethane Anti-corrosion Coating System

目前,我国新建大型石油炼化装置主要集中在沿海地区,设备长期运行在强紫外光照射下的工业大气腐蚀环境,船舶、平台等海上设施除了紫外线照射,还要经受海洋环境的腐蚀,为此开发出DC高耐候性丙烯酸聚氨酯防腐蚀涂料体系。该涂料体系由底漆—中间漆—面漆组成,底漆金属锌含量大于80%,提高了涂层耐阴极剥离、耐盐雾性能,中间漆提供与底漆和面漆较佳的黏接性能,面漆通过在环氧改性羟基丙烯酸共聚物中添加盐酸法改性纳米钛白粉、受阻胺酯、三嗪等,有效吸收紫外光,阻断紫外线对涂层的破坏。通过1年耐盐雾、耐暴晒、耐海水测试,涂层完好。该涂料与国外同类产品相对,性能相当,价格要低30%以上,应用前景广阔。

Nowadays,China’s new large oil refining devices mainly concentrated in coastal areas.The equipment have been running in long term under the strong UV-light in industrial atmosphere corrosion environment.Offshore facilities,including ships and platforms suffer from not only UV-light but also corrosion from marine environment.In order to solve these problems,the DC high weather resistance acrylic polyurethane anti-corrosion coating system has been developed.The system includes base coat,intermediate coat and finishing coat.Base coat has a content of zink of more than 80%,which improves the property of resistant cathodic disbanding and resistant salt mist.Intermediate coat provides the property of splice for base coat and the finishing coat.Finishing coat effectively take in UV-light and cut off the damage of UV-light by adding hydrochloric acid to modify nano titanium dioxide,hindered amines and triazine.Through the test of salt mist resistance,exposure in sunlight and sea water resistance in one year,the coating is still intact.It has similar performance as that of foreign similar products,the price is 30%lower than that of mentioned products,with broad prospects for application.